Hence, After solving this quadratic equation D is the right response x = -9 or x = 1,
How to solve quadratic equation?Three fundamental approaches can be used to resolve quadratic equations:
Factoring, first
2. Applying the quadratic equation
3. Finish the square.
To factor an equation with a quadratic term:
1. Place the equal sign with zero on the other side and all terms on one side.
2. Aspect.
3. Define each factor as zero.
4. Handle the equations in order.
5. Verify by entering your solution into the initial equation.
In order to use the quadratic formula to solve a quadratic equation:
1. Type the quadratic formula into your calculator: x = (-b (b2 - 4ac)) / (2a).
2. Determine the quadratic equation's values for the variables a, b, and c.
3. Enter these numbers as replacements in the quadratic formula, then simplify.
(x + 4)² = 25 is the quadratic version of the given equation.
By taking the square root of each side of the equation and then figuring out x,
we can solve this equation.
(x + 4)² = 25
Square roots of both sides result in x + 4 = 5 and x = -4 5.
Because of this, x = -9 or x = 1.
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Answer:
x=-9 and x=1
Step-by-step explanation:
It was correct for me
Pls help and explain♀️
the equation that relates the time it took James to sort the supplies for b bags is: t = 1.5b
option D.
What is the equation?Sherry sorted enough supplies for 10 bags in 30 minutes (from 10:10 a.m. to 10:40 a.m.). Let's call the rate at which Sherry sorted the supplies "r."
Then, we can write:
r = 10 bags / 30 minutes
r = 1/3 bags per minute
Since James sorted twice as fast as Sherry, his rate is 2r:
2r = 2/3 bags per minute
To find the time it took James to sort b bags, we can use the formula:
time = (amount of work) / (rate of work)
In this case, the "amount of work" is b bags, and the "rate of work" is 2/3 bags per minute. So, we get:
time = b / (2/3)
time = (3/2) b
Therefore, the equation that relates the time it took James to sort the supplies for b bags is:
t = (3/2) b
So, the correct answer is (D) t = 1.5b.
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a car manufacturer claims that its new hybrid car can travel at speeds more than 60 mpg. the actual mpg is approximately normally distributed with a mean of 52 miles and a standard deviation of three miles. what is the probability that the manufacturer's claim is valid?
The probability that the manufacturer's claim is valid is 0.0037, or 0.37%.
The student question asks about the probability that the car manufacturer's claim of the hybrid car traveling at speeds more than 60 mpg is valid. The actual mpg is approximately normally distributed with a mean of 52 miles and a standard deviation of three miles.
To calculate the probability, we will use the Z-score formula:
Z = (X - μ) / σ
Where:
Z is the Z-score
X is the value we want to find the probability for (in this case, 60 mpg)
μ is the mean (52 miles)
σ is the standard deviation (3 miles)
Plug in the values into the Z-score formula:
Z = (60 - 52) / 3
Calculate the Z-score:
Z = 8 / 3 ≈ 2.67
Now we have the Z-score of 2.67, which tells us how many standard deviations above the mean the value of 60 mpg is. The next step is to use a Z-table (also known as the standard normal table) to find the probability.
Look up the Z-score in the Z-table:
For a Z-score of 2.67, the corresponding probability in the Z-table is 0.9963.
This means that 99.63% of the data falls below 60 mpg.
Find the probability that the claim is valid:
Since we want to find the probability that the car travels at speeds more than 60 mpg, we need to find the area to the right of the Z-score in the normal distribution curve. To do this, we subtract the probability from 1
Probability = 1 - 0.9963 = 0.0037
The probability that the manufacturer's claim is valid is 0.0037, or 0.37%.
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The PTA at Middletown High School is having its annual dinner and auction to raise money for music and art programs. Last year, the event raised $20,800. This year, it raised $31,408. What is the percent of increase in the amount raised?
Answer:
51%
Step-by-step explanation:
31,408-20,800=10,608÷20,800=0.51×100=51.
You subtract the retail price from the original and you divide the number you get by the original price and then times the number by a hundred.
At the baseball game the Kacanich family purchased 3 hot dogs and 2 cheeseburgers and paid $31.25. The Nisbet family purchased 5 hot dogs and 2 cheeseburgers and paid $41.75. Write and solve a linear system to find the cost of each hot dog and each cheeseburger.
Let x be the cost of a hot dog and y be the cost of a cheeseburger. Then we can set up the following system of equations:
3x + 2y = 31.25
5x + 2y = 41.75
We can solve for one of the variables by subtracting the first equation from the second:
5x + 2y - (3x + 2y) = 41.75 - 31.25
2x = 10
x = 5
Substituting x = 5 into either of the equations above gives:
3(5) + 2y = 31.25
15 + 2y = 31.25
2y = 16.25
y = 8.125
Therefore, a hot dog costs $5 and a cheeseburger costs $8.125.
Brooklyn is going to an amusement park. The price of admission into the park is $10, and once she is inside the park, she will have to pay $3 for every ride she rides on. How much money would Brooklyn have to pay in total if she goes on 11 rides? How much would she have to pay if she goes on � r rides?
Brooklyn have to pay total for the 11 rides is $43 and for r rides she have to pay is $10+$3×r.
If Brooklyn goes on 11 rides, she will have to pay $10 for admission and $3 for each of the 11 rides she goes on. So her total cost would be:
$10 + (11 rides x $3/ride) = $10 + $33 = $43
If she goes on r rides, her total cost would be:
$10 + (r rides x $3/ride) = $10 + $3r
So, for example, if she goes on 15 rides, her total cost would be:
$10 + (15 rides x $3/ride) = $10 + $45 = $55
An arithmetic expression is a combination of numbers, operators (such as +, -, x, ÷), and parentheses that can be evaluated to produce a numerical result.
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york steel corporation produces a special bearing that must meet rigid specifications. when the production process is running properly, 10% of the bearings fail to meet the required specifications. sometimes problems develop with the production process that cause the rejection rate to exceed 10%. to guard against this higher rejection rate, samples of 15 bearings are taken periodically and carefully inspected. if more than 2 bearings in a sample of 15 fail to meet the required specifications, production is suspended for necessary adjustments. a . a.if the true rate of rejection is 10% (that is, the production process is working properly), what is the probability that the production will be suspended based on a sample of 15 bearings? b . b.what assumptions did you make in part a?
a) If the true rate of rejection is 10%, then the probability that the production will be suspended based on a sample of 15 bearings is 10%.
b) The assumptions made in part a are that the sample of 15 bearings is representative of the population of bearings produced, and that each bearing is independent of the others.
To ensure that the production process is producing quality products, samples of 15 bearings are taken periodically and carefully inspected. If more than 2 bearings in a sample of 15 fail to meet the required specifications, production is suspended for necessary adjustments.
a) If the true rate of rejection is 10%, what is the probability that the production will be suspended based on a sample of 15 bearings? To answer this question, we need to use the binomial distribution. The binomial distribution is used to calculate the probability of a certain number of successes in a fixed number of independent trials. In this case, the number of trials is 15, and the probability of success (i.e., a bearing not meeting the required specifications) is 10%.
b) The assumptions allow us to use the binomial distribution to calculate the probability of having a certain number of bearings fail to meet the required specifications in a sample of 15. Additionally, we assume that the true rate of rejection is 10%, which may not always be the case.
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Helppp !!! Giving 20 pts !!
To determine when the ball strikes the ground, we need to find the value of t when the height h(t) is 0.
The equation for the ball's height h at time t seconds after launch is:
h(t) = -4.9t^2 + 9.31t + 239.12
Setting h(t) to 0, we get:
0 = -4.9t^2 + 9.31t + 239.12
We can solve this quadratic equation using the quadratic formula:
t = (-b ± sqrt(b^2 - 4ac)) / 2a
where a = -4.9, b = 9.31, and c = 239.12.
Answer: 6.12 seconds
Step-by-step explanation:
To find when the object strikes the ground, we need to find the time t when the height h(t) is equal to 0 (since the ground is at height 0). We have the equation:
h(t) = -4.9t² + 9.31t + 239.12
To find the time when the object strikes the ground, we need to find the value of t when h(t) = 0:
0 = -4.9t² + 9.31t + 239.12
This is a quadratic equation of the form at² + bt + c = 0, where a = -4.9, b = 9.31, and c = 239.12. We can solve this equation for t using the quadratic formula:
t = (-b ± √(b² - 4ac)) / 2a
Plugging the values of a, b, and c into the formula, we get:
t = (-(9.31) ± √((9.31)² - 4(-4.9)(239.12))) / (2(-4.9))
t = (-9.31 ± √(86.6161 + 4694.336)) / (-9.8)
t = (-9.31 ± √(4780.9521)) / (-9.8)
t ≈ (-9.31 ± 69.14) / (-9.8)
We will have two possible values for t:
t₁ ≈ (-9.31 + 69.14) / (-9.8) ≈ 6.12 (rounded to two decimal places)
t₂ ≈ (-9.31 - 69.14) / (-9.8) ≈ 8.00 (rounded to two decimal places)
Since the height function describes the motion of the ball from a platform, we can discard the negative solution as it represents an invalid time before the ball is launched. Thus, the object strikes the ground at approximately t ≈ 6.12 seconds.
Given the following exponential function identify whether the change represents growth or decay and determine the percentage rate of increase or decrease
y=8900(1.362)x
Answer:
Growth & 36.2%
Step-by-step explanation:
Exponential Growth Formula
A = A0 (1 + r)^t
A is the amount after certain number years
A0 is the initial amount
r is the rate
t is the number of years
Growth models are identified by the number between the parenthesis. If the number is greater than 1, then it represents a growth model. If the number is less than 1, then it represents a decay model.
To find the percentage by which it increases, you would simply convert the decimal. 1.362 becomes 36.2%. You move the decimal point two places to the right and add a percentage symbol next to it.
Determine whether the triangles are similar, If similar state how( AA. SSS. SAS) and write a similarity statement.
By the AA similarity theorem, we can conclude that triangles FGH and FPQ are similar.
EquationsTo prove that triangles FGH and FPQ are similar, we need to show that their corresponding angles are congruent and their corresponding sides are proportional.
Angle F in triangle FGH corresponds to angle F in triangle FPQ
Angle H in triangle FGH corresponds to angle Q in triangle FPQ
Angle G in triangle FGH corresponds to angle P in triangle FPQ
From the problem, we know that angle F = 63 degrees and angle H = 30 degrees. We also know that angle GPQ = 93 degrees, which means angle G + angle P = 93 degrees. Therefore, angle G = 93 degrees - angle P
Using the fact that the sum of angles in a triangle is 180 degrees, we can find angle Q:
Angle FGH: angle F + angle G + angle H = 63 degrees + (93 - angle P) + 30 degrees = 186 - angle P degrees
Triangle FPQ: angle F + angle P + angle Q = 180 degrees
Therefore, angle Q = 180 - angle F - angle P = 117 - angle P degrees
Now, we can compare the corresponding sides:
Side FG in triangle FGH corresponds to side FQ in triangle FPQ
Side GH in triangle FGH corresponds to side PQ in triangle FPQ
Side FH in triangle FGH corresponds to side PQ in triangle FPQ
To show that these sides are proportional, we can use the Angle-Angle (AA) similarity theorem and We already know that angle F in triangle FGH corresponds to angle F in triangle FPQ, and angle G in triangle FGH corresponds to angle P in triangle FPQ. We just showed that angle Q in triangle FPQ corresponds to angle H in triangle FGH. Therefore, we have two pairs of corresponding angles that are congruent.
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which type of exponential smoothing technique is best for data with a trend but no seasonality? triple exponential smoothing-winters exponential smoothing single exponential smoothing double exponential smoothing holt-winters exponential smoothing
Holt linear exponential smoothing or Holt-Winters exponential smoothing technique is best for data with a trend but no seasonality.
For trend but nonseasonal data, Holt linear exponential smoothing (aka double exponential smoothing) or Holt-Winters exponential smoothing (aka triple exponential smoothing) can be used to compare single exponential smoothing or Exponential smoothing is better than post-winter smoothing.
Holt's linear exponential smoothing method uses his two smoothing factors:
One for the level of the series and one for the trend. Suitable when data show a linear trend.
Holt-Winter exponential smoothing adds his third seasonal smoothing factor to Holt's linear exponential smoothing method. Appropriate when the data show trends over time and exhibit seasonal patterns. Therefore, Holt's linear exponential smoothing method is best when the data show a linear trend. Holt-Winters exponential smoothing is more appropriate when trends are more complex and there is evidence of seasonality.
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If jose used 4 gallons of wood sealant to cover the hemispherical ceiling of his vacation home, how many gallons of wood sealant are needed to cover the floor?
4/3 Gallons of wood sealant are needed to cover the floor of Jose's vacation home.
To determine how many gallons of wood sealant are needed to cover the floor, first, we need to find the relationship
between the surface area of the hemispherical ceiling and the floor.
Calculate the surface area of the hemispherical ceiling.
The surface area of a hemisphere is given by the formula [tex]3πr^2[/tex], where r is the radius.
Calculate the surface area of the floor.
The floor is a circle, so its surface area is given by the formula[tex]πr^2[/tex].
Determine the ratio between the surface areas.
Divide the surface area of the floor by the surface area of the hemispherical ceiling: [tex](πr^2) / (3πr^2).[/tex] The [tex]πr^2[/tex]terms
cancel out, leaving 1/3.
Apply the ratio to the amount of wood sealant used for the ceiling.
Since Jose used 4 gallons of wood sealant for the ceiling, we can multiply this by the ratio to find the amount needed
for the floor: 4 gallons × (1/3) = 4/3 gallons.
Therefore, 4/3 gallons of wood sealant are needed to cover the floor of Jose's vacation home.
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canadian radio stations are required to have at least 35% of their content be canadian in origin. a listener sampled his favorite station's content to test whether it is falling short of the quota. in his sample of 100 time intervals, canadian content was playing for 33 of them. what is the test statistic for this test?
The test statistic for this hypothesis test is -0.3886.
In statistical hypothesis testing, a test statistic is a numerical value that is calculated from a sample of data and used to determine whether to accept or reject the null hypothesis.
To calculate the test statistic for this hypothesis test, we need to use the formula for the proportion test
z = (p - P) / sqrt(P(1-P) / n)
Where
p is the proportion of Canadian content in the sample (33/100 = 0.33)
P is the hypothesized proportion (35% = 0.35)
n is the sample size (100)
Substituting the values, we get
z = (0.33 - 0.35) / sqrt(0.35(1-0.35) / 100)
z = -0.02 / 0.0516
z = -0.3886
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Help I needed please
Answer:
Step-by-step explanation:
Area = length x height
A = 2.4 x 5.6
A = 13.44 in^2
A different coffee shop called Ruth's Roast's serves drinks that contain a mean of 16g of sugar with a standard deviation of 6g. A Grande Mocha Cappuccino at Ruth's Roast's contains 13g of sugar.
Assuming that the distribution center of sugar amounts have approximately the same shape, at which shop does this drink have less sugar relative to the other drinks at its respective store?
Based on the calculations using z-scores, we can conclude that the Grande Mocha Cappuccino at Ruth's Roast's has less sugar relative to the other drinks at its respective store than the Grande Mocha Cappuccino at Coffee Haven.
What is Coffee Haven?
"Coffee Haven" was used as an example name for one of the coffee shops in a previous question. It is not an actual coffee shop. The name was used to illustrate a point about comparing the sugar content of drinks between different coffee shops.
To compare the sugar content of the Grande Mocha Cappuccino between the two coffee shops, we can use z-scores to standardize the sugar content based on the mean and standard deviation of each shop's drinks.
For the first coffee shop, let's call it Coffee Haven, we know that the mean sugar content is 20g with a standard deviation of 8g. Therefore, the z-score for the Grande Mocha Cappuccino at Coffee Haven is:
z = (13 - 20) / 8 = -0.875
For the second coffee shop, Ruth's Roast's, we know that the mean sugar content is 16g with a standard deviation of 6g. Therefore, the z-score for the Grande Mocha Cappuccino at Ruth's Roast's is:
z = (13 - 16) / 6 = -0.5
Comparing the two z-scores, we see that the z-score for the Grande Mocha Cappuccino at Ruth's Roast's is greater than the z-score for the Grande Mocha Cappuccino at Coffee Haven. This means that the Grande Mocha Cappuccino at Ruth's Roast's has less sugar relative to the other drinks at its respective store than the Grande Mocha Cappuccino at Coffee Haven.
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125 invitations to 75 invitations
Hernando’s salary was $49,500 last year. This year his salary was cut to $44,055. find the percent decrease
Step-by-step explanation:
Decrease is 49500 - 44055 = 5445 dollars
What percent of 49500 is 5445 ?
5445 / 49500 x 100% = 11% decrease
Mountain Trees Nursery has a great selection of trees for every yard. The nursery was busy last week delivering trees to local customers. The table below shows the number of trees that were transported in each delivery.
Number of trees Number of deliveries
1–2 2
3–4 3
5–6 4
7–8 2
9–10 1
Based on the data, estimate how many of the next 20 deliveries will transport more than 6 trees.
If necessary, round your answer to the nearest whole number.
Identify whether to find GCF or LCM to solve the word problem:
April is putting together party bags. She splits 72 Reese's Cups and 90 KitKats into bags. There is no candy left over. What is the greatest number of party bags April can make?
LCM OR GCF
We need to find the GCF of 72 and 90 to solve this problem. We can calculate it in the following manner.
To solve this problem, we need to find the greatest number of party bags April can make with no candies left over. This means we need to find the greatest common factor (GCF) of 72 and 90.
The GCF of two numbers is the largest number that divides evenly into both of them. In this case, we need to find the largest number that can divide both 72 and 90 without any remainder.
Once we have found the GCF, we can divide both 72 and 90 by it to find the maximum number of party bags April can make with no candy left over.
Therefore, we need to find the GCF of 72 and 90 to solve this problem.
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Shannon wants to buy a car but only has half as much money as she needs. If Shannon deposits the money into a savings account that earns 10.99% interest compounded quarterly, how long will it take for her money to double?
Round your answer to the nearest month.
it will take Shannon about 80 months for her money to double if she deposits it into a savings account that earns 10.99% interest compounded quarterly.
Shannon's funds will double in value during the following period of time, according to the quarterly compound interest formula:
[tex]A = P(1+r/n)^{nt}[/tex]
where n is the number of times interest is compounded each year, r is the yearly interest rate, P is the principal amount, A is the amount after t years, and t is the amount of time in years.
Shannon currently has P/2 dollars, which is half of what she needs. Finding t when A = 2P will help us determine how long it will take for her money to double.
We are aware that n = 4 and r = 10.99%. (since interest is compounded quarterly). Solving for t using these values as input results in:
[tex]2P = P/2(1 + 0.1099/4)^{(4t) }\\4 = (1 + 0.1099/4)^{(4t)} log(4) \\= 4t log(1 + 0.1099/4)^ t = log(4)/(4 log(1 + 0.1099/4))[/tex]
t ≈ 6.7 years
Rounding this to the nearest month gives:
t ≈ 80 months
Therefore, it will take Shannon about 80 months for her money to double if she deposits it into a savings account that earns 10.99% interest compounded quarterly.
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Find the distance between $\left(15,-17\right)$ and $\left(-20,-5\right)$ .
The distance between the points (15, -17) and (-20, -5) is 37.
What is distance formula?The distance formula is a mathematical formula used to find the distance between two points in a coordinate plane. It is derived from the Pythagorean theorem and can be used to find the distance between any two points, whether they are on the same line or on different lines.
We can use the distance formula to find the distance between two points:
[tex]\rm d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}[/tex]
Let [tex]\rm (x_1,y_1)[/tex] = (15,-17) and [tex]\rm (x_2, y_2)[/tex] = (-20,-5)
Then, plugging into the formula, we get:
[tex]\rm d = \sqrt{(x_2-x_1)^2 + (y_2-y_1)^2}[/tex]
[tex]\rm = \sqrt{(-20-15)^2 + (-5-(-17))^2}[/tex]
[tex]= \sqrt{(-35)^2 + (12)^2}[/tex]
[tex]= \sqrt{1225+144}[/tex]
[tex]= \sqrt{1369}[/tex]
= 37
Therefore, the distance between the points (15, -17) and (-20, -5) is 37.
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Complete question:
Find the distance between point (15,-17) and (-20,-5).
I got stuck at on a problem what is 3x+4+2x+5=34?
Given:
[tex]3x+2x=34-5-4[/tex]
[tex]5x=29-4[/tex]
[tex]5x=25[/tex]
[tex]x=25\div5[/tex]
Answer:
[tex]\bold{x=5}[/tex]x = 5
Step-by-step explanation:Given: 3x+4+2x+5=34
first combine similar values,
3x + 2x and 4 + 5
5x + 9 = 34
time for substitution
5x + 9 - 9 = 34 - 9
5x = 25
divide by the value of x in this instance it is 5
5x = 25 / 5
x= 5
now to check we will plug in 5 for x
3(5) +4+2 (5) +5=34
15 + 4 + 10 + 5 = 34
19 + 15 = 34
34 = 34✓
Hope this helps, happy learning =D
Help meeeeeeee pleaseee
a. Mason's error is that he flipped the inequality sign. The correct solution is x > 6.
b. This indicates that any value of x greater than 6 (but not equal to 6) will satisfy the inequality x > 6.
What is inequality?An inequality is a mathematical statement that compares two values or expressions using inequality symbols such as "<" (less than), ">" (greater than), "<=" (less than or equal to), ">=" (greater than or equal to), or "≠" (not equal to). Inequalities can be used to describe a range of values that a variable can take, rather than just a single value.
a. Mason's error is that he flipped the inequality sign. The correct solution is x > 6.
b. To show the correct solution on the number line, we start by marking 6 on the number line with an open circle (since x is not equal to 6). Then, we shade the area to the right of 6, because x is greater than 6. The graph should look like this:
0 1 2 3 4 5 6o 7 8 9
--------
shaded
This indicates that any value of x greater than 6 (but not equal to 6) will satisfy the inequality x > 6.
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i need help quickly 40j-16
Answer:
Answer: 40j - 16 = 40j + (-16) (Additive inverse property) = 40j + (-1)(16) (Distributive property) = 40j + (-1)(4)2 (FOIL - first, outer, inner, last) = (40j + (-1)4) + (-1)2 (Order of operations - parentheses first) = (40j - 4) + (-1)2 (Distributive property) = 36j - 2
Answer:
8(5j−2)
Step-by-step explanation:
1 / 4
Let's find the greatest common factor of 40
8 is greatest common factor
40j/8 - 16/8
=
8(5j-2)
if an ice block 10 centimeters wide, 10 centimeters high, and 20 centimeters long was melted, how much would it raise the water level in a tank that is 100 centimeters long by 40 centimeters wide?
Step-by-step explanation:
Volume of ice = 10 X 10 X 20 = 2000 cm^3
tank volume increase will be the same
100 x 40 x HEIGHT = 2000
Height = 2000/ ( 100 X 40) = .5 cm height increase
The melting of the ice block would raise the water level in the tank by approximately 0.5 centimeters. This can be answered by the concept of Volume
To calculate the amount of water that would be displaced by the ice block, we need to first find its volume, which is 10 x 10 x 20 = 2000 cubic centimeters. Since 1 cubic centimeter of water has a mass of 1 gram, the mass of the ice block would be 2000 grams or 2 kilograms.
When the ice block melts, it will turn into water and occupy the same volume, which would displace an equal amount of water in the tank. The volume of the tank is 100 x 40 x h, where h is the increase in water level. Setting the volume of the ice block equal to the increase in the water level, we get:
2000 = 100 x 40 x h
h = 0.5 centimeters
Therefore, the melting of the ice block would raise the water level in the tank by approximately 0.5 centimeters.
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Use the model to answer this question. 2/5x1/4 ?
Basic Trinomials. (Check for GCF)
x^3 + 16x^2 + 64x
Answer:
x^3 + 16x^2 + 64x First, we need to check if there is a greatest common factor (GCF) that we can factor out. In this case, we can factor out "x" since it is a common factor in all the terms: x(x^2 + 16x + 64) Now, we need to factor the quadratic trinomial inside the parentheses. We can do this by finding two numbers that multiply to 64 and add up to 16. These numbers are 8 and 8: x(x + 8)(x + 8) Therefore, the factored form of the trinomial expression is: x(x + 8)^2 I hope this helps!
0 / 350
Find the area of the composite figure
Answer:
186 inches
Step-by-step explanation:
8×6=48
5.5×16=88
10×5=50
48+88+50=186
What are the values of w and x?
The values of x and w in the two triangles are w = 50and x = 24
Calculating the values of x and wfrom the question, we have the following parameters that can be used in our computation:
two triangles
The sum of angles in a triangle is 180 degrees
This means that
w = 180 - 2 * 65
And we have
x = 180 - 2 * 78
When evaluated, we have
w = 50
x = 24
Hence, the values are w = 50and x = 24
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What is a equation of line passes through the points (-6,6) and (-3,1)
Answer:
First find slope. m = (y2 - y1)/(x2 - x1) = (6 -1)/(-6 --3) = 5/-3. then. use. y - y1 =. m (x - x1). which gives. y - 1 = -5/3(x - 3)
Step-by-step explanation:
Solve the following question
3to the power 2x multiplied by 9 to the power y =243 .
Solve for x and y
Solving the statement, we get the equation x=2.5-y
Define exponentsExponents are a mathematical notation used to represent repeated multiplication of a number by itself. Exponents are written as a superscript to the right of the base number, which is the number being multiplied.
given equation:
3²ˣ × [tex]9^{y}[/tex] = 243
Simplifying the expression on the right-hand side, we get:
3²ˣ × [tex]9^{y}[/tex] = 3⁵
Using the property of exponents that states that when multiplying powers with the same base, we can add their exponents, we get:
[tex]3^{2x+2y}[/tex] = 3⁵
For the equation to hold, the exponents on both sides must be equal. Therefore:
2x + 2y = 5
Dividing both sides by 2, we get:
x + y = 2.5
x=2.5-y
Hence, solving the statement, we get the equation x=2.5-y
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