Answer:2xy
Step-by-step explanation:
Solve the equation 7=-10s-3
Answer:
s= -1
Step-by-step explanation:
I believe 7=-10s-3
(s=-1)
The Egyptian pyramids have square bases and are roughly twice as wide as they are tall. If a miniature model of the pyramid is 3 inches wide, what is the volume of the model
If a miniature model of the pyramid is 3 inches wide. The volume of the model is 4.5.
Volume of the modelPyramids square bases are twice as wide as they are tall
Model of pyramid=3 inches wide
First step is to find the model height
Let Model height=x
2 × height=weight
2x=3
x=3/2
x=1.5
Second step is to calculate the volume of model:
Volume of model=3×3×1.5×1/3
Volume of model=4.5
Therefore the volume of the model is 4.5.
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need help please :,)
Answer:
x>=324
Step-by-step explanation:
sqrt(x) > = 18 square both sides of the equation
x >= 324
giving 50 points it's grade 9 algebra 1 help please
Answer:
(a) y = 34.27 + 7.79x
(b) r = 0.98 (nearest hundredth)
(c) strong, positive correlation - as the students spends more time studying, their test scores increase.
Step-by-step explanation:
Correlation measures how closely two variables are linked.
If two variables are correlated, you can draw a line of best fit on the scatter plot.
Explanatory (independent) variable is drawn on the x-axisResponse (dependent) variable is drawn on the y-axis.Linear regression is a method for finding the equation of a line of best fit on a scatter plot.
The regression line of y on x is: y = a + bx
where a = y-intercept and b = gradient
If b is positive, the variables are positively correlated.
If b is negative, the variables are negatively correlated.
Part (a)Inputting the data from the table into a calculator and using the statistical function:
a = 34.27272727
b = 7.792207792
Therefore, the linear equation is:
y = 34.27 + 7.79x
Part (b)The correlation coefficient is the Product Moment Correlation Coefficient (r) and measures the strength of the linear correlation between two variables.
Again, inputting the data from the table into a calculator and using the statistical function:
r = 0.9815741571
⇒ r = 0.98 (nearest hundredth)
Part (c)The r value is always between +1 and -1. The closer it is to +1 or -1, the stronger the correlation between the two variables.
Values close to +1 mean a strong, positive correlation.Values close to -1 mean a strong, negative correlation.Values close to zero mean a weak correlation.Therefore, as r is very close to +1, the correlation coefficient suggests a strong, positive correlation. In the context of the problem, this suggests that as the students spends more time studying, their test scores increase.
Sasha makes a wooden base for a sculpture with the dimensions shown. The sculpture is too heavy for the base, so she needs to add a brace from point C to point E to make the base stronger.
How long does the brace need to be? Round your answer to the nearest tenth.
with explanation
A. 5.4
B. 2.6
C. 3.4
D.5.1
Answer:
A. 5.4
Step-by-step explanation:
I think... I haven't done this sort of question in a while
how do calculate probablility
Answer:
Let me get my notes real quick. Give me a few seconds. Ok, in order to dermine propability you first do:
1: Determine the event (Like picking out 2 red marbles from a bag.) with 1 outcome (In this case, getting the marbles.)
2: Find the total amount of outcomes, like 1 7 2 9 1 2 2 2, (Example: What is the propability of geeting a 2? 4/8/50%)
3: Divide the number of events (How many times you've done it.) by the number of possible outcomes.
That's all there is.
My coach bought 88 cupcakes to split with 11 people, What would my fair share be??
( 1 Person. )
Answer:
You would get 8 cupcakes
Step-by-step explanation:
Since we're splitting C (cupcakes) with P (people) and we know that c = 88 and p = 11 we have to do the equation c / p or 88 / 11 which equals 8.
A circle has a diameter of 7
inches. What is the area of
the circle in terms of pi?
A Circle is a closed plane geometric shape figure. The diameter of a circle is the longest chord of a circle. The radius drawn perpendicular to the chord bisects the chord. A Circle is always lie at an equal distance from a center point. Circles having different radius are similar.
Area of Circle:The area of a circle is pi times the radius squared. The unit of area of circle is square units.
[tex]\longrightarrow Area_{(circle)} = \pi r^2[/tex]
Here, r is the radius of the circle.
Elucidation:We are asked to find the area of the circle in terms of pi if the diameter is 7 inches.
We know that, the diameter is twice the length of the radius of a circle. Therefore;
D = 2rr = D/2 = 7/2 = 3.5Now the area of circle will be:
[tex]\implies Area_{(circle)} = \pi r^2[/tex]
[tex]\implies Area_{(circle)} = \pi (3.5)^2[/tex]
[tex]\implies Area_{(circle)} = 12.25 \pi[/tex]
Hence, the area of the given circle is 12.25π square inches.
Answer:
Area of circle = 12.25π square inchesStep-by-step explanation:
In the question we are given that diameter of circle is of 7 inches . And we have asked to find the area of the circle in term of pi ( π ) .
For finding area of circle we must have to know that what is the formula for finding area of circle. So :
[tex] \qquad \qquad \: \red{\underline{\red{ \boxed{ \frak{Area \: of \: Circle = \pi r {}^{2} }}}}}[/tex]
Where ,
π refers to 3.14 or 22/7r refers to radius of circleSolution : -
As in the question we are given length of diameter . So for finding area we need to find the radius of circle .
We know that diameter of circle is two times its radius or ,
[tex] \qquad \: \rm {Diameter = 2 × Radius }[/tex]
So for radius we are dividing both side with 2 :
[tex]\qquad \: \rm { \dfrac{Diameter}{2} = \dfrac{ \cancel{2} × Radius}{ \cancel{2}} }[/tex]
We get that ,
[tex] \qquad \: \rm {Radius = \dfrac{Diameter}{2} }[/tex]
Therefore , we can say that radius of circle is half of its diameter .
Now using this firstly we are finding radius of circle . So :
[tex] \longmapsto \quad \: \boxed{\rm{ Radius = \frac{7}{2} \: \: inches}}[/tex]
Therefore , radius of circle is 7/2 inches .Now , we are moving towards our final solution .
So ,
[tex] \longrightarrow \quad \: Area_ { (Circle)} = \pi( \dfrac{7}{2} ) {}^{2} [/tex]
Calculating further :
[tex]\longrightarrow \quad \: Area_ { (Circle)} = \pi \times \dfrac{7}{2} \times \dfrac{7}{2} [/tex]
After multiplication of 7/2 with 7/2 we get :
[tex]\longrightarrow \quad \: Area_ { (Circle)} = \pi \times \dfrac{49}{4} [/tex]
On dividing 49 by 4 we get :
[tex]\longrightarrow \quad \: \blue{{\boxed{\frak{Area_ { (Circle)} = 12.25\pi \: inches {}^{2} }}}}[/tex]
Remember one thing , we haven't put value of π as 22/7 or 3.14 because in the question it is given that we have to find the area of circle in terms of pi .
Henceforth , in terms of pi ( π ) area of circle having diameter 7 inches is 12.25π inches² .#Keep Learningplease help me
Mario flips a coin, then rolls a standard six-sided number cube. What is the probability that Mario gets tails and rolls a number greater than 4?
Enter a number in the box.
Answer:
1/6.
Step-by-step explanation:
Prob(Tail) = 1/2
Prob(gets number > 4 , that is a 5 or a 6) = 2/6 = 1/3.
So required probability = 1/2 * 1/3
= 1/6.
The individual probabilities are multiplied as the 2 events are independent.
The probability that Mario gets tails and rolls a number greater than 4 is,
⇒ 1 / 6
What is mean by Probability?The term probability refers to the likelihood of an event occurring. Probability means possibility. It is a branch of mathematics that deals with the occurrence of a random event. The value is expressed from zero to one.
Given that;
Mario flips a coin, then rolls a standard six-sided number cube.
Now, We get;
The probability to get tails is,
⇒ 1 / 2
And, The probability to get a number greater than 4 (5 and 6) is,
⇒ 2 / 6
⇒ 1 / 3
Thus, The probability that Mario gets tails and rolls a number greater than 4 is,
⇒ 1/2 × 1/3
⇒ 1 / 6
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How to solve 16x-8y=72
**Kind note:
Since there are two variables in one equation, it is impossible to determine a specific value for x and y. (Unless the trial-and-error method is used).
How to determine the value of x using the equation (16x - 8y = 72)?
To determine the value of "x", we need to isolate the x-variable on one side. The value (or expression) obtained on the opposite side of the x-variable will be the value of x.
How to determine the value of y using the equation (16x - 8y = 72)?
To determine the value of "y", we need to isolate the y-variable on one side. The value (or expression) obtained on the opposite side of the y-variable will be the value of y.
Determining the x-variable:
⇒ 16x - 8y = 72
⇒ 16x = 72 + 8y [Adding 8y to both sides of the equation]
⇒ 16x/16 = (72 + 8y)/16 [Dividing 16 to both sides of the equation]
⇒ x = 9/2 + y/2 [Simplifying both sides of the equation]
⇒ x = (9 + y)/2 [Combining the denominators]
Determining the y-variable:
⇒ 16x - 8y = 72
⇒ 16x - 8y - 16x = 72 - 16x [Subtracting 16x both sides of the equation]
⇒ -8y = 72 - 16x [Simplifying both sides of the equation]
⇒ -8y/-8 = (72 - 16x)/-8 [Dividing -8 to both sides of the equation]
⇒ -8y/-8 = 72/-8 - 16x/-8
⇒ -8y/-8 = -72/8 + 16x/8
⇒ y = -9 + 2x [Simplifying both sides of the equation]
First simplify it to suitable form of slope intercept then you can get values
16x-8y=722x-y=9y=2x-9The pairs are
(1,-7)(2,-5)(3,-3)(4,-1)(5,1)And so on
What is the volume of Trisha's
pyramid. in cubic inches?
9 in
6 in
8 in
Answer:
its 72 in cubed because you do the base area/2 x the height divided by 3 so the base area is 48 and divide by 2 is 24 and then multiply by the height of the pyramid which is 9 and that will give you 216 and divide by 3 which is 72
Step-by-step explanation:
please mark as brainliest
A bag contains 5 marbles. There are 3 yellow marbles and 2 red marbles.
Suppose that Glen chooses a marble first and then Kris chooses one.
Answer the questions to show the probability that Kris will get a yellow marble if Glen chooses a yellow one first.
1. What is the probability that Glen will get a yellow marble? Show how you calculated this probability.
2. After Glen chooses a marble, how many are left in the bag?
3) If Glen chooses a yellow marble, how many yellow marbles are left?
4. If Glen chooses a yellow marble first, and does not put it back in the bag, what is the probability that Kris chooses a yellow marble?
Quadratic function h can be used to model the height in feet of a rocket from the ground
t seconds after it was launched. The graph of the function is shown.
Answer:
t = -b 2a = -120/(-32) = 3.75 The height of the rocket is a maximum 3.75 seconds after its launch. To find the height we only need to plug into the model: s(3.75) = -16(3.752) + 120(3.75) + 80 = 305 The maximum height of the rocket is 305 feet.
Step-by-step explanation:
The maximum value of graph of function is (3.75,225).
How to build the equation and find value of x-axis ?
We consider, the equation is y=a(x-0)(x-7.5)
Now, when x=6 and y = 144
144=6a(-1.5)
⇒a= - 144/9
⇒a= -16
Now, y= -16(x-0)(x-7.5)
⇒ y= -16[tex]x^{2}[/tex]+120x
∴ x = -b/2a = -120/(-32) = 3.75
How to find y co-ordinate ?When x=3.75, then the value of y is maximum.
∴ [tex]y_{max}[/tex] = [tex]-16(3.75)^{2}+120*3.75[/tex]
= 225
Hence, the maximum value of y is 225.
So, the required co-ordinate is (3.75,225).
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Factor out the following:
-x^5+9x^3
Answer:
x^3(-x+3)(x+3)
Step-by-step explanation:
-x^5 + 9x^3
factor out x^3
x^3(-x^2+9)
9 and -x^2 are perfect squares so we can factor out a 3 and an x to get (-x+3)(x+3)
the fully factored form would be x^3(-x+3)(x+3)
Answer:
-x^3(x - 3)(x + 3).
Step-by-step explanation:
-x^5+9x^3
the greatest common factor = x^3 so we can write it as
x^3(-x^2 + 9)
= -x^3(x^2 - 9)
The expression in the parentheses is the difference of 2 squares so we have:
-x^3(x - 3)(x + 3) Answer.
cylinder:
diameter = 6 mm
height = 18 mm
Answer:
508.9
Step-by-step explanation:
Family B lives in Boise, Idaho. Their total household monthly income is $4,675.
Use the graph to calculate the central angle of each section for Family B. Then, complete the following table. Note: Express each angle measure as a number, rounded to the nearest tenth of a degree.
Family B
1. Housing
° ____
2. Food
° ____
3. Childcare
° ____
4. Transportation
° ____
5. Insurance
° ____
6. Other Needs
° ____
7. Taxes
° ____
Best answer gets brainliest!
Answer:
See below
Step-by-step explanation:
The pie chart gives the percentage of the $ 4675 that goes to each expense
Housing 16 % .16* 4675 = $ 748
Food 16% .16 * 4675 = $748
Childcare 18% .18 * 4675 = $ 841.50
Trnsport 13% .13 * 4675 = $ 607.75
etc I think you can do the others---- right ?
PLSSS HELP IF YOU TURLY KNOW THISS
Answer:
2 1/2
Step-by-step explanation:
Turn both fractions into improper fractions, multiply the whole number by the denominator and add the numerator.
4 3/4
4 * 4 + 3 = 19
19/4
2 1/4
2 * 4 + 1 = 9
9/4
Now since she drank 2 1/4 gallons of juice, subtract 9/4 from 19/4.
19/4 - 9/4 = 10/4
Now turn back into a mixed fraction, do this by putting 4 into ten twice and taking the remainder and putting it as numerator:
4 * 2 = 8
10 - 8 = 2
2 1/2
Jalen bought 4 pizzas. He also spent $8 on wings. He paid a total of $60. He can use the equation 4p + 8 = 56 to determine the price of each pizza. How much was each pizza?
Answer:
13 dollars a pizza because if you put 4x13 that is 52 then add the wings 8$ that is your answer 60....
Step-by-step explanation:
Hopefully It helped ya... (:
Answer:
p = 12
Step-by-step explanation:
Given:
Jalen bought 4 pizzas. He also spent $8 on wings. He paid a total of $60. He can use the equation 4p + 8 = 56 to determine the price of each pizza.
To Find:
How much was each pizza?
Solution:
Since it already given a equation thus we can just solve using the equation given:
4p + 8 = 56
Subtract 8 from both sides
4p + 8 = 56
- 8 -8
-----------------------
4p = 48
Divide both sides by 4
4p/4 = 48/4
p = 12
Hence, each pizza cost $12.
Kavinsky
Please show the work thank you!
Answer:
a= 1/4 , h=8 , k = -12
Step-by-step explanation:
There is really not much to say.
[tex]y=\frac{1}{x}[/tex] , [tex]y=\frac{1}{4x-32}-12[/tex]
Factor the denominator by 1/4.
[tex]y=\frac{1}{4(x-8)}-12[/tex]
You got your formula: [tex]y=\frac{a}{x-h}+k[/tex]⇒[tex]y=a\frac{1}{x-h}+k[/tex]
a= 1/4 means to shrink due to it being fraction.
h=8 means 8 right
k = -12 means 12 down.
A bowl of cereal weights 60g.Is that more or less than 1 kg?
Answer:
Less than 1 kg
Step-by-step explanation:
1 gram = 0.001kg
So 60g = 0.06kg
Identify the area of the polygon with vertices & C(3,3) A(8,-2). S(3,-4), and H(0, -2)
A = 31.5 units^2
A = 28 units^2
A = 25 units^2
A = 35.5 units^2
help me solve this w/work!! tyyyy
The vertices of the polygon form a trapezoid, and the area of the polygon is 28 unit squares
How to determine the area of the polygon?The vertices are given as:
C = (3,3)
A = (8,-2)
S = (3,-4)
H = (0, -2)
The area of the polygon is calculated using:
[tex]A = \frac 12 \sum\limits^{n-1}_{k = 0}(x_ky_{k+1} - y_kx_{k+1})[/tex]
So, we have:
A = 1/2 * |(3 * -2 - 8 * 3 + 8 * -4 - 3 * -2 + 3 * -2 - 0 * -4 + 0 * 3 -3 * -2)|
Evaluate
A = 1/2 * |-56|
Remove the absolute bracket
A = 1/2 * 56
Evaluate the product
A= 28
Hence, the area of the polygon is 28 unit square
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what is 20% by 37 decreased
Answer:
37 decreased by 20% is 29.6.
Step-by-step explanation:
To do this, what we do is simply take 20% of 37 and subtract it from 37.
20% of 37. A trick to easily figure this out is multipling 37 by 20 and dividing by 100.
37*20 = 740
740 / 100 = 7.40
37 - 7.40 = 29.6
37 decreased by 20% is 29.6.
HELP URGENT!!! The surface area of a globe is about 1018 in^2. What is the diameter of the globe? Round to the nearest whole number.
PLS EXPLAIN THE STEPS
The diameter of the spherical globe that has a surface area of about 1018 in.² is: 18 inches.
What is the Surface Area of a Sphere?Surface area = 4πr², where r is the radius, which is half of the diameter.
The globe is a sphere with a surface area of 1018 in.².
1018 = 4πr²
Solve for r
1018 = 4πr²
1018/4π = r²
81.0 = r²
r = √81.0
r = 9 in.
Diameter = 2(r) = 2(9)
Diameter of the sphere = 18 in.
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What are the solutions to this quadratic equation?
x^2 + 13= 8x +37
A. X = 4 V10
B. X = –2 + 4v10
C. X = –4 4/10
D. X= 4 2V10
Answer:
B.
Step-by-step explanation:
x² + 13 = 8x + 37
help math highschool
Answer:
Your answer is d) 3, 7, 8.
Step-by-step explanation:
s and t are parallel and r is transversal.
4 and 3 are congruent as the vertical angle.
4 is 7 is alternative exterior angles.
4 and 8 are corresponding angles.
can you help me please.
Answer:
Step-by-step explanation:
-x + 2y = 16
y = mx + 8
Start with the top equation. Add x to both sides.
-x + 2y + x = x + 16 Combine the left
2y = x + 16 Divide by 2
2y/2 = (1/2)x + 1/2(16)
y = 1/2 x + 8
If m = 1/2, both equations together will give an infinite number of solutions.
Emma has 23 teddy bears. Noah has 17 teddy bears. How many teddy bears do they have in all?.
Answer:
40
Step-by-step explanation:
23 + 17
= 40
PLS HELP WILL MARK YOU BRAINLIEST! NO FAKE ANSWERS!
Find the mode of the data
Answer:
shoe size (US) 6
Step-by-step explanation:
Mode = most frequently occurring data value
From inspection of the table, we can see that the highest frequency (most number of women) is 20, so therefore the modal class of the data is shoe size (US) 6.
Answer:
Shoe Size (US) = 6Step-by-step explanation:
The mode of the data is the modal class with the highest frequencyIt is 20, present in the 4th columnIts corresponds with the modal class : Shoe Size (US) = 6What is the range of the function shown in the graph
Answer:
( -3 , ∞)
Step-by-step explanation:
If the hypotenuse of a right triangle has length 9 feet and one of the other sides has length 2 feet, what is the length of the remaining side, in feet?
[tex]\sf A) \sqrt{11}[/tex]
[tex] \sf B) \sqrt{7}[/tex]
[tex]\sf C) \sqrt{85}[/tex]
[tex]\sf D) \sqrt{77}[/tex]
[tex]\sf E) 7[/tex]
Apply Pythagorean theorem
P²=H²-B²P²=9²-2²P²=81-4P²=77P=√77Option D
Answer:
[tex]\sf D) \sqrt{77} \: ft [/tex]
Step-by-step explanation:
Given that,
→ Perpendicular (x) = ?
→ Hypotenuse (h) = 9 feet
→ Base (b) = 2 feet
Now by using the Phythagoras theorem,
→ (Hypotenuse)² = (Perpendicular)² + (Base)²
→ (h)² = (x)² + (b)²
→ (9)² = (x)² + (2)²
→ 81 = (x)² + 4
→ (x)² = 81 - 4
→ (x)² = 77
→ [ x = √(77) ]
Thus, length of remaining side is √(77) ft.