(12.7)
2. A swimming pool is in the shape of a rectangular
prism with a horizontal cross-section 10 feet by 20
feet. The pool is 5 feet deep and filled to capacity.
Water has a density of approximately 60 pounds
per cubic foot
What is the approximate mass of water in the pool?
A. 8,000 lb.
B.
12,500 lb.
C
16,700 lb.
D. 60,000 lb.
Answer:
Step-by-step explanation:
The volume of the pool can be calculated as:
Volume = length x width x height
Volume = 10 ft x 20 ft x 5 ft
Volume = 1000 cubic feet
The mass of the water in the pool can be calculated as:
Mass = Volume x Density
Mass = 1000 cubic feet x 60 pounds/cubic foot
Mass = 60,000 pounds
Therefore, the approximate mass of water in the pool is 60,000 lb , which corresponds to option D.
If x = -3, then which inequality is true?
The inequailty y < x + 3 would be true when x = -3 and all values of y are less than 0
If x = -3, then which inequality is true?From the question, we have the following parameters that can be used in our computation:
The statement that x = -3
The above value implies that we substitute -3 for x in an inequality and solve for the variable y
Take for instance, we have
y < x + 3
Substitute the known values in the above equation, so, we have the following representation
y < -3 + 3
Evaluate
y < 0
This means that the inequailty y < x + 3 would be true when x = -3 and all values of y are less than 0
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Dante has a tent shaped like a triangular prism. The tent has an equilateral base that measures 5 feet on each side. The tent is 8 feet long and 4. 3 feet tall.
101. 5ft
120 ft.
141. 5 ft.
184 ft
What is the surface area of the tent
The surface area of Dante's tent is approximately 180 square feet.
To find the surface area of Dante's tent, we need to find the area of each of its faces and then add them up. Since the tent is in the shape of a triangular prism, it has three rectangular faces and two triangular faces.
First, let's find the area of each rectangular face. We know that the tent is 8 feet long and 4.3 feet tall. To find the width of each face, we need to use the Pythagorean theorem since the base of the tent is equilateral. So, we can use a triangle with sides of 5 feet (the base of the tent) and 4.3 feet (the height of the triangular face) to find the width of each rectangular face.
a^2 + b^2 = c^2
5^2 + 4.3^2 = c^2
25 + 18.49 = c^2
43.49 = c^2
c = √43.49
c ≈ 6.6 feet
Now that we know the width of each rectangular face, we can find the area of each face:
Area of rectangular face = length x width
Area of rectangular face = 8 x 6.6
Area of rectangular face ≈ 52.8 square feet
Next, let's find the area of each triangular face. Since the base of the tent is equilateral, each triangular face has a base of 5 feet and a height of 4.3 feet. The area of each triangular face is:
Area of triangular face = (base x height) / 2
Area of triangular face = (5 x 4.3) / 2
Area of triangular face ≈ 10.8 square feet
Now we can add up the areas of all five faces to find the total surface area of the tent:
Surface area of tent = 3 x area of rectangular face + 2 x area of triangular face
Surface area of tent = 3 x 52.8 + 2 x 10.8
Surface area of tent = 158.4 + 21.6
Surface area of tent ≈ 180 square feet
Therefore, the surface area of Dante's tent is approximately 180 square feet.
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1) Find the value of the k that makes the sequence arithmetic
-13,k,-3,2,...
A)5
B)-8
C)-5
D)-10
2) Which formula describes the arithmetic sequence?
-4/5, -3/5,-2/5,-1/5...
A)tn=-n/5
B)tn=n/5-1
C)tn=1+n/5
D)tn=-n/5-1
3)What're the next 4 terms in the series?
t1=3,tn=1/2,tn-1 -1
A)1/2, -3/4, -11/8, -27/10
B)3/2, 3/4, 3/8, 3/16
C)-1/2, 3/4, 5/8, 21/16
D)2, 0, -1, -3/2
4)Which formula describes the arithmetic sequence?
-3,-6,3,-6
A)tn=-tn-1+3
B)tn=-tn-1-1
C)tn=tn-1-1
D)-tn-1-3
Cuánto interés ganará lesli si presta l 5000 a pagar en 3años? al:5%simple anual. 10%simple anual. 5%compuesto anual
The interest gained by Lesli is if she lends $5000 for 3 years at 5% simple interest annually is $750, 10% simple interest annually is $1500, and on 5% compound interest annually is $790
The simple interest is calculated by
I = P * r * t
where P is the principal
r is the rate of interest
t is the time
I is the simple interest
The compound interest is calculated by:
I = P[tex](1 +r)^t[/tex] - P
where I is the compound interest
P is the principal
r is the rate of interest
t is the time
According to the question,
P = $5000
t = 3 years
1. r = 5% simple interest
I = 5000 * 3 * 0.05
= $750
2. r = 10% simple interest
I = 5000 * 3 * 0.10
= $1500
3. r = 5% compounded annually
I = 5000 [tex](1+0.05)^3[/tex] - 5000
= 5000 * 1.158 - 5000
= $790
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The question is in Spanish, and the question in English is:
How much interest will Lesli earn if she lends 15,000 to be paid in 3 years? at: 5% annual simple. 10% simple annual. 5% compounded annually
Over what interval is the function shown in the table increasing? Decreasing? Y=6x2
Find an equation of the circle drawn below.
The equation of the circle in this problem is given as follows:
x² + y² = 49.
What is the equation of a circle?The equation of a circle of center [tex](x_0, y_0)[/tex] and radius r is given by:
[tex](x - x_0)^2 + (y - y_0)^2 = r^2[/tex]
The radius of a circle represents the distance between the center of the circle and a point on the circumference of the circle. As this distance is of 7 units, it is then given as follows:
r = 7 -> r² = 49.
The center of the circle is at the origin, hence:
[tex](x_0, y_0) = (0,0)[/tex]
Thus the equation of the circle is given as follows:
x² + y² = 49.
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Can you use addition or mulipulcation for solving 100000 x 1/100000
Using multiplication to solve 100000 x 1/100000, the answer would be 1.
You should use multiplication to solve the problem 100000 x 1/100000.
When you multiply 100000 by 1/100000, you're essentially multiplying 100000 by a fraction that represents "one part out of 100000.". The step by step explanation is:
1. Write down the given problem: 100000 x 1/100000
2. Perform the multiplication: 100000 x (1/100000)
3. Simplify the expression: 1
Mathematically, this can be written as:
So, 100000 x 1/100000 equals 1.
You wouldn't typically use addition to solve this particular problem, as it involves multiplication of a fraction rather than adding two numbers together. However, you could use addition to solve related problems.
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0= pi/6 radians. Identify the terminal point and tan θ
The terminal point is (0.866025, 0.5) and the tangent of θ is 0.55735 for θ = π/6 radians.
When the angle is given as 0 radians (0 = π/6 radians), the terminal point of the angle is on the positive x-axis.
The terminal point represents the point in the coordinate system where a given angle and distance (or magnitude) from the origin are located.
For any angle a, the coordinates of the terminal point are given by:
x = cos(a)
y = sin(a).
In this case, the angle is a = π/6
Then the coordinates of the terminal point are:
x = cos(π/6) = 0.5
= 0.866025
y = sin(π/6)
= 0.5
So the terminal point is (0.866025, 0.5)
The quotient of the y-component and the x-component is the tangent of that angle:
tan(π/6) = 0.5/ 0.866025
= 0.57735
Therefore, the terminal is (0.866025, 0.5) and the tangent is 0.55735.
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The question attached here seems to be incomplete, the complete question is:
If θ= π/6 radians then Identify the terminal point and tan θ.
A particular fruits weight are normally disturbed, with a mean of 374 grams and a standard deviation of 20grams. the heaviest 20% of fruits weigh more than how many grams? answer to the nearest gram.
The weight of the heaviest 20% of fruits can be estimated using the z-score corresponding to the 80th percentile, which is 0.84.
The weight can be calculated by adding the z-score multiplied by the standard deviation to the mean weight. Therefore, the weight of the heaviest 20% of fruits is approximately 405 grams.
To calculate this, we first need to find the z-score for the 80th percentile, which is 0.84. Then, we can use the formula z = (x - mu) / sigma, where x is the weight we want to find, mu is the mean weight, and sigma is the standard deviation.
Rearranging this formula to solve for x, we get x = z * sigma + mu. Plugging in the values we have, we get x = 0.84 * 20 + 374 = 405.2 grams. Rounding this to the nearest gram, we get the answer of 405 grams.
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part of a multiplication table is below. complete the pattern in the multiplication table. click each dot on the image to select an answer. a partial multiplication table with 3 rows and 3 columns. the first row reads 40, 45, 50. the second row reads an unknown number, 54, 60. the third row reads 56, an unknown number, 70. stuck?.
the completed multiplication table is: 40 45 50 ,72 54 60 and 56 90 70 .by using common factor logic we can solve this question.
what is common factor ?
A common factor is a number that divides evenly into two or more other numbers. For example, the common factors of 12 and 18 are 1, 2, 3, and 6, because all of these numbers divide evenly into both 12 and 18.
In the given question,
From the given table, we can see that:
The first row reads 40, 45, 50 (which are multiples of 5).
The second row has an unknown number (let's call it x), 54, and 60.
The third row reads 56, an unknown number (let's call it y), 70 (which are also multiples of 7).
To find the missing numbers, we can use the fact that multiplication is commutative, meaning that the order of the factors does not matter. Therefore, we can fill in the missing numbers by looking for factors that are common to both the row and column headers.
Starting with the second row, we can see that the common factor between x and 54 is 9, since 9 x 6 = 54 and 9 x x = ?. So, the missing number in the second row is 9 x 10 = 90.
Moving on to the first column, we can see that the common factor between 40 and 56 is 8, since 8 x 5 = 40 and 8 x 7 = 56. So, the missing number in the second row, first column is 8 x 9 = 72.
Finally, we can find the missing number in the first row, second column by finding the common factor between 45 and 60, which is 15, since 15 x 3 = 45 and 15 x 4 = 60. So, the missing number in the first row, second column is 15 x 5 = 75.
Therefore, the completed multiplication table is:
40 45 50
72 54 60
56 90 70
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Offering brainiest to whoever can give me the answer fastest, a nice explanation, and the correct answer!
Box C has the smallest volume, followed by Box A, and Box B has the largest volume.
Explanation on how to get the least volumeFirst, we need to find the volume of each box.
Recall that the formula for volume of a box is given as:
V = length x height x width
For Box A,
V = 3 cm x 2 cm x 4 1/2 cm = 27 cm³
For Box B,
V = 2 1/3 cm x 3 cm x 5 cm = 7/3 cm x 3 cm x 5 cm = 35 cm³
For Box C,
V = 4 cm x 3 cm x 1 1/4 cm = 4 cm x 3 cm x 5/4 cm = 15 cm³
So, the order of the boxes by volume from least to greatest is: Box C, Box A, and Box B.
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Mr. jackers was transporting a giraffe from one zoo to another. what is a reasonable amount of the weight of his cargo?
a. 200 lbs.
b. 400 lbs.
c. 1 ton
d. 2 tons
The reasonable amount of weight of his cargo Mr. Jackers while transporting a giraffe from one zoo to another is 1 ton and 2 tons. Options C and D are correct.
To arrive at a reasonable estimate, we can consider the average weight of a giraffe, which ranges between 2,600 lbs and 4,250 lbs for adult males and females, respectively.
Therefore, a reasonable amount for the weight of Mr. Jackers' cargo would be between 2,600 lbs and 4,250 lbs, which translates to either 1 ton or 2 tons.
Thus, options c and d are the only reasonable answers, with d (2 tons) being the safer choice.
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The carpet for the office you completed cost $576. If you're using the same carpet in the new client's bedroom, how much will it cost? Round up to the nearest whole dollar. (Hint: You may want to find the area of each room and the cost of the carpet per square foot. )
The cost of a similar carpet in the client's bedroom is $225 when the area of the bedroom is 120 square feet.
Given Data:
Cost of Carpet = $576
length of office room = 16
Width of office room = 19.2
length of Bedroom = 12
Width of Bedroom = 10
We need to determine the area of the office and the bedroom. we can determine it by using the Area of a rectangle formula which is given as,
Area of a rectangle = length × width
Area of Office = length of office room × width of office room
= 16 × 19.2
= 307.2 square feet
Area of Bedroom = length of Bedroom × width of Bedroom
= 12 × 10
= 120 square feet
Therefore, the area of the office is 307.2 square feet, and the area of the Bedroom is 120 square feet.
From the above data, the area of the office is 307.2 square feet and the carpet will cost $576 for the office. we need to find the cost of the carpet for the 120 square feet bedroom, let's assume the cost as x, and cross multiply we get,
x = 120 × 576 / 307.2
x = 69120 / 307.2
x = $225
Therefore, the cost of the bedroom carpet is $225.
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If john buys 8 jackets at x dollars a piece and 2 movie tickets at $11 a piece, whats the most he can spend on each jackets if his total budget is $200
Answer:
22.25
Step-by-step explanation:
8x+ (11*2)=200
first, multiply 11 and 2 =22
that leaves 8x+22=200
so now let's subtract the 22 from both sides
8x=178 now divide the 8
x= 22.25 so that is the most the jackets could have cost
A rectangle has vertices located at the points: A(-1 1/4,3 1/2), B(2 2/3,3 1/2), C(2 2/3,-1 3/4), D(-1 1/4,-1 3/4). Find the length of BC
The length of BC is 5.25 units. when the rectangle has vertices located at the points: B is ( 2 2/3,3 1/2) and C is (2 2/3,-1 3/4).
We need to find the length of BC. The length of a line segment BC can be calculated using the distance formula. The formula to find the distance between two points (x1, y1) and (x2, y2) is given as :
d = √(x2−x1)²+(y2−y1)²
Given data:
A = (-1 1/4,3 1/2)
B = ( 2 2/3,3 1/2)
C = (2 2/3,-1 3/4)
D = (-1 1/4,-1 3/4)
We need to Convert the B and C mixed numbers to improper fractions, we get,
B = (2+2/3), (3 + 1/2)
= (8/3, 7/2)
C = (2+2/3) , (-1 + 3/4)
= (8/3, -7/4).
Substituting the B and C values into the distance formula, we get:
= √(8/3 − 8/3)² + ( −7/4 − 7/2 )²
= √0 + ( − 21 / 4 )²
= √441/16
[tex]= 21/4[/tex]
[tex]= 5.25[/tex]
Therefore, the length of BC is 5.25 units.
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There are 250 students who went to the homecoming dance, 300 students who went to the prom and 200 students who went to both dances. find the probability that someone went to homecoming or prom.
The probability that someone went to either homecoming or prom is 1, or 100%.
To find the probability that someone went to either homecoming or prom, we need to add the number of students who went to each dance and then subtract the number of students who went to both dances (as they would have been counted twice in the first step).
So, the total number of students who went to either homecoming or prom is:
250 + 300 - 200 = 350
Now, we can calculate the probability that someone went to either dance by dividing this number by the total number of students:
P(homecoming or prom) = 350 / (250 + 300 - 200) = 350 / 300 = 1.17
However, probabilities are typically expressed as decimals or percentages between 0 and 1. Since it's impossible for someone to have a probability greater than 1, we can conclude that there is an error in our calculation. This is likely because we made a mistake when adding or subtracting the number of students.
To correct this, we need to double-check our work and make sure we have the correct numbers. Assuming that the numbers provided are correct, the probability that someone went to either homecoming or prom is:
P(homecoming or prom) = 350 / (250 + 300 - 200) = 350 / 350 = 1
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Nora signed up for a streaming music service that costs $5 per month. The service allows Nora to listen to unlimited music, but if she wants to download songs for offline listening, the service charges $0. 75 per song. How much total money would Nora have to pay in a month in which she downloaded 30 songs? How much would she have to pay if she downloaded ss songs?
cost of 30 songs:
cost of s songs:
Nora would have to pay a total of $5 + $0.75s in a month when she downloaded "s" songs.
The cost for downloading 30 songs would be:
$0.75 per song × 30 songs = $22.50
Therefore, Nora would have to pay a total of $5 + $22.50 = $27.50 in a month when she downloaded 30 songs.
If she downloaded "s" songs, the cost would be:
$0.75 per song × s songs = $0.75s
Therefore, Nora would have to pay a total of $5 + $0.75s in a month when she downloaded "s" songs.
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Solve for x (2-3) 67
Help there is a picture of it
Answer:
5 19/20 miles
A cyclist went out for a solo ride but has become lost. He knows from his inexpensive cycletracker GPS the distance he has traveled and in which direction, but he has no idea how to get home short of retracing his path. The different legs of his trip are listed below.
Determine in which direction and how far he needs to ride to get back where he started in the shortest distance possible. (assume there are no obstacles in his way and he can travel in a straight line) (5 marks)
Leg #1-8 km [North]
Leg #2-10 km [East]
Leg #3-12 km [15 S of East]
Leg #4-14 km [South]
The cyclist needs to ride approximately 23.21 km in the direction of 23.13° W of North to get back to the starting point.
How to solve for the distanceWe can use trigonometry to find the x and y components.
x3 = 12 * cos(15°) ≈ 11.59 km (east)
y3 = -12 * sin(15°) ≈ -3.10 km (south, hence the negative sign)
Leg #4: 14 km [South]
x4 = 0 km (no east/west movement)
y4 = -14 km (south, hence the negative sign)
Now, let's find the total x and y displacements:
x_total = x1 + x2 + x3 + x4 ≈ 0 + 10 + 11.59 + 0 ≈ 21.59 km
y_total = y1 + y2 + y3 + y4 ≈ 8 + 0 - 3.10 - 14 ≈ -9.10 km
Now, we can find the distance and direction he needs to ride to get back to the starting point:
Distance=
[tex]\sqrt{21.59^2 + (-9.10)^2}[/tex])
23.21 km
Direction:
angle =
arctan(9.10 / 21.59)
= 23.13°
The cyclist needs to ride approximately 23.21 km in the direction of 23.13° W of North to get back to the starting point.
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Redland Municipal Middle School offers the following girls sports:
Part A:
Regina wants to play one sport in each of the three seasons during her 8th grade year. Create a list that shows the sample space for the sports that she could play.
Part B:
What is the probability that Regina plays tennis and/or basketball during her 8th grade year?
probability that Regina plays tennis and/or basketball during her 8th grade year at Redland Municipal Middle School, we first need to know the total number of sports offered and the number of students participating in each sport. However, based on the information provided in your question, we do not have sufficient data to determine the probability.
In general, to determine the probability, we would follow these steps:
1. Determine the total number of sports offered at the school (let's call this S).
2. Find out the number of students participating in tennis (T) and basketball (B).
3. Calculate the probability of Regina playing tennis (P_T) by dividing T by S.
4. Calculate the probability of Regina playing basketball (P_B) by dividing B by S.
5. Use the formula P(T or B) = P_T + P_B - P(T and B) to calculate the probability that Regina plays tennis and/or basketball. Here, P(T and B) is the probability of her playing both sports.
Without the specific numbers, we cannot provide a precise probability. Please provide more details about the sports and participation at Redland Municipal Middle School to help us calculate the probability accurately.
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A video game player is creating a user identification to play a game. The identification must consist of one vowel (A, E, I, O, U) followed by any one number (2, 4, 6, 8). What is the probability that the user identification will contain both an E and an 8?
The probability that the user identification will contain both an E and an 8 is 1/20, or 5%.
To determine the probability of a user identification containing both an E and an 8, we will break down the problem step-by-step.
1. Identify the total number of possibilities:
There are 5 vowels (A, E, I, O, U) and 4 even numbers (2, 4, 6, 8). To calculate the total number of possible user identifications, multiply the number of vowels by the number of even numbers:
Total possibilities = 5 vowels × 4 even numbers = 20 combinations
2. Determine the desired outcome:
In this case, we are interested in the combination that has an E followed by an 8. There is only one such combination: E8.
3. Calculate the probability:
To find the probability of the desired outcome, divide the number of desired outcomes by the total number of possible outcomes:
Probability = Desired outcomes / Total possibilities
Probability = 1 / 20
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what is 1/10 of 1.65
Solutions of Two-Variable Linear Inequalities
-40
5
-5
40
X
Select all of the following ordered pairs that are in
the solution set of the inequality shown.
(-10,-10)
0
0
0
(0.
(0, 10)
(10,0)
(20, 0)
(100, 100)
Answer: -403
Step-by-step explanation:
Solve for X pleaseee!!!
E
josh needs to find the measures of the
angles on a barn's trusses.
find the measure of abc if abd is a right angle and cbd is 60 degrees. write and solve a subtraction equation
The measure of angle ABC is 30 degrees.
How to find the measure of angle ABC?To find the measure of angle ABC, we need to use the fact that the sum of angles in a triangle is always 180 degrees. Since we know that angle ABD is a right angle (90 degrees) and angle CBD is 60 degrees, we can find the measure of angle ABC as follows:
angle ABD + angle CBD + angle ABC = 180 degrees
Substituting the given values, we get:
90 degrees + 60 degrees + angle ABC = 180 degrees
Simplifying, we get:
150 degrees + angle ABC = 180 degrees
Now we can solve for angle ABC by subtracting 150 degrees from both sides:
angle ABC = 180 degrees - 150 degrees
angle ABC = 30 degrees
Therefore, angle ABC measures 30 degrees.
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What is the probability of selecting an Ace, not replacing it, and then selecting a King?
The probability of selecting an Ace, not replacing it, and then selecting a King is 4/663 or approximately 0.006 or 0.6%.
The probability of selecting an Ace, not replacing it, and then selecting a King can be calculated using the rules of conditional probability.
First, we need to determine the probability of selecting an Ace from a standard deck of 52 cards. There are four Aces in the deck, so the probability of selecting an Ace is 4/52, which can be simplified to 1/13.
Next, we need to consider the fact that the Ace is not replaced before selecting the King. This means that the deck now contains 51 cards, with only three remaining Aces. Therefore, the probability of selecting a King after selecting an Ace without replacement is 4/51.
To determine the overall probability of selecting an Ace and then a King, we multiply the probability of selecting an Ace (1/13) by the probability of selecting a King after selecting an Ace without replacement (4/51).
The calculation is as follows:
(1/13) x (4/51) = 4/663
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PLS HLEP AND SHOW WORK I WILL MATK BRAINLYEST
Based on the information, statement (A) False is correct.
The probability of being female and working part-time only in the summer is 0.336, which is not equal to 0.42.
How to calculate the probabilityIt should be noted that since the proportion of females who work part-time only in the summer (84%) is greater than the overall proportion of students who work part-time only in the summer (80%), we can conclude that gender and working part-time only in the summer are dependent. This means that knowing someone's gender gives us information about the likelihood that they work part-time only in the summer.
Therefore, statement (A) False is correct.
The probability will be:
0.80 x 0.50 x 0.84 = 0.336
The probability of being female and working part-time only in the summer is 0.336, which is not equal to 0.42.
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HELP ASAP ! Given the rectangle in this example, and a scale factor of 3.5, what are the side lengths of the new rectangle?
Answer:
Length: 22 inches × 3.5 = 77 inches
Width: 10 inches × 3.5 = 35 inches