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2 years ago

11

No links, No Wrong Answers, No Jokes, No Long Explanations|

1 answer:

Irina18 [472]2 years ago

6 0

Your answer is, Negative Correlation

It is showing negative correlation because the points are decreasing and they are all pin pointed in around the same area.

Hope this helps!

Please Mark me Brainiest!

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The equation of a line is y = 4x + 15. what is the y-intercept of the line.

Stels [109]

Answer:

15

Step-by-step explanation:

$y = 4x + 15 \\ equating \: it \: with \\ y = mx + b \\ we \: find \\ b = 15 \\ \implies \: y - intercept = 15$

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3 years ago

Which of the following World Record times from Track and Field is least

Gre4nikov [31]

I think the answer is B. Or A.

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2 years ago

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Find the volume and surface area of the composite figure. Give your answer in terms of pi

ExtremeBDS [4]

Given:

A diagram of a composite figure.

Radius of cone and hemisphere is 8 cm.

Height of the cone is 15 cm.

To find:

The volume and the surface area of the composite figure.

Solution:

Volume of a cone is:

$V_1=\dfrac{1}{3}\pi r^2h$

Where, r is the radius and h is the height of the cone.

Putting $r=8,h=15$ in the above formula, we get

$V_1=\dfrac{1}{3}\pi (8)^2(15)$

$V_1=\pi (64)(5)$

$V_1=320\pi$

Volume of the hemisphere is:

$V_2=\dfrac{2}{3}\pi r^3$

Where, r is the radius.

Putting $r=8$ , we get

$V_2=\dfrac{2}{3}\pi (8)^3$

$V_2=\dfrac{1024}{3}\pi$

$V_2\approx 341.3\pi$

Now, the volume of the composite figure is:

$V=V_1+V_2$

$V=320\pi +341.3\pi$

$V=661.3\pi$

The volume of the composite figure is 661.3π cm³.

The curved surface area of a cone is:

$A_1=\pi r\sqrt{h^2+r^2}$

Where, r is the radius and h is the height of the cone.

Putting $r=8,h=15$ in the above formula, we get

$A_1=\pi (8)\sqrt{(15)^2+(8)^2}$

$A_1=\pi (8)\sqrt{289}$

$A_1=\pi (8)(17)$

$A_1=136 \pi$

The curved surface area of the hemisphere is:

$A_2=2\pi r^2$

Where, r is the radius.

Putting $r=8$ , we get

$A_2=2\pi (8)^2$

$A_2=2\pi (64)$

$A_2=128\pi$

Total surface area of the composite figure is:

$A=A_1+A_2$

$A=136\pi +128\pi$

$A=264\pi$

The total surface area of the composite figure is 264π cm².

Therefore, the correct option is A.

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2 years ago

Kermit's favorite iced tea is made with 15 tea bag in every 2 liters of water. Peggy made a 12 liter batch of iced tea with 90 t

podryga [215]

Answer:

For each liter of water there need = 15/2 = 7.5 tea bags. Peggy need to make 12 liters of iced tea. = 90 tea bags.

Step-by-step explanation:

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3 years ago

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Monica [59]

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3 years ago

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