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3 years ago

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HELP PLEASE!!

1 answer:

ANTONII [103]3 years ago

5 0

<span>Volume of the Sphere V = 4/3pi x r^3 So when diameter d = 3 inches => r = 1.5 inches volume of the sphere = 4.188 x r^3 = 4.188 x 1.5^3 = 14.14 in So when diameter d = 8 inches => r = 4 inches volume of the sphere = 4.188 x r^3 = 4.188 x 4^3 = 268.03 in So when diameter d = 9 inches => r = 4.5 inches volume of the sphere = 4.188 x r^3 = 4.188 x 4.5^3 = 381.63 in value for option (a) is 3 x 14.14 = 42.42 inches value for option (b) is 268.03 inches value for option (c) is 381.63 / 2 = 190.815 inches So the correct option would be (b)</span>

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Find the Area. Use 3.14 for Pi. Label your answer with ft2.

aivan3 [116]

Answer:

133.04ft²

Step-by-step explanation:

Area of a circle is:

$A=\pi r^2\\\\r - \text{Radius.}$

We are given the diameter. The radius of the given circle is 6. Note that the diameter is twice the radius.

Using 3.14 for pi:

$A=3.14(6)^2\\\\A=3.14*36\\\\A\text{ } $$\approx$$\text{ }113.04$

The area is appropriately 133.04ft².

Hope this helps.

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2 years ago

Read 2 more answers

Find the length of the third side. If necessary, round to the nearest tenth.47

IRISSAK [1]

Given a right angle triangle

The length of the legs are 4 and 7

we will find the hypotenuse using the Pythagorean theorem

So,

$\begin{gathered} h^2=7^2+4^2=49+16=65 \\ h=\sqrt[]{65}\approx8.062 \end{gathered}$

Rounding to the nearest tenth

So, the answer is the length of the third side = 8.1

3 0

1 year ago

What is the equation of the line, in general form, that passes through the point (1,1) and has a y-intercept of 2.

guajiro [1.7K]

Answer:

<h2>x + y - 2 = 0</h2>

Step-by-step explanation:

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$1=1m+2$ <em>subtract 2 from both sides</em>

$-1=m\to m=-1$

The equation of a line:

$y=-1x+2\to y=-x+2$

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$Ax+By+C=0$

Convert:

$y=-x+2$ <em>add x to both sides</em>

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nika2105 [10]

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mestny [16]

Answer:

Here is one :)

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3 years ago