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2 years ago

Quiz: QZ 3.1-3.2

Mathematics

1 answer:

hram777 [196]2 years ago

4 0

Answer:

Find the following for the function 4\l =5 never find it And like heart follow me Bye hope and helps Omg i see in my house help me is Zombie Noooo

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Which expression can be used to find the volume of the sphere? A sphere with radius 9 inches. V = four-thirds pi r squared = fou

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Answer:

Step-by-step explanation:

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3 years ago

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Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AC =16 and DC=5 what is the length of BC in the simplest ra

Nana76 [90]

The length of BC is $4 \sqrt{5}$ .

Solution:

Given ABC is a right triangle.

AC is the hypotenuse and BD is the altitude.

AB and BC are legs of the triangle ABC.

AC = 16 and DC = 5

Leg rule of geometric mean theorem:

$\frac{\text { hypotenuse }}{\text { leg }}=\frac{\text { leg }}{\text { part }}$

$\Rightarrow \frac{AC}{BC}=\frac{BC}{DC}$

$\Rightarrow \frac{16}{x}=\frac{x}{5}$

Do cross multiplication.

$\Rightarrow 16\times 5 = x\times x$

$\Rightarrow 80= x^2$

$\Rightarrow 16\times 5= x^2$

Taking square root on both sides.

$\Rightarrow \sqrt{16\times 5} = \sqrt{x^2}$

$\Rightarrow \sqrt{4^2\times 5} = \sqrt{x^2}$

square and square roots get canceled, we get

$\Rightarrow 4\sqrt{ 5} = x$

The length of BC is $4 \sqrt{5}$ .

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3 years ago

Can someone please help me it would mean a lot

Dimas [21]

Answer:3

Step-by-step explanation:

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3 years ago

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Which steps would you use to solve this equation? Check all that apply.

Dovator [93]

Answer: The answers are

Subtract 7 from both sides of the equation.
Subtract 7 from 7.
Substitute 5 for p to check the solution.

Step-by-step explanation:

p + 7 = 12

= p + 7 - 7 = 12 - 7

= p = 5

Then for the substituting part

5 + 7 = 12

Hope this helps!

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3 years ago

If the Leaning Tower of Pisa (which is roughly cylindrical) has a height of 55 meters, radius of 8 meters, what is the volume?

valentinak56 [21]

Answer:

Option C. $V=3,520\pi\ m^3$

Step-by-step explanation:

we know that

The volume of a cylinder is equal to

$V=\pi r^{2} h$

we have

$r=8\ m$

$h=55/ m$

substitute

$V=\pi (8)^{2} (55)$

$V=3,520\pi\ m^3$

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2 years ago

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