2 years ago

What is the geometric mean of 4/5 and 45?

Mathematics

1 answer:

AfilCa [17]2 years ago

3 0

Answer:

Step-by-step explanation:

The geometric mean of 2 numbers a and b is $\sqrt{ab}$ , then

geometric mean = $\sqrt{\frac{4}{5}(45) }$ = $\sqrt{36}$ = 6

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A pen is being built that is 10 feet long and 20 feet wide. How much fencing material will be ne

schepotkina [342]

I think its perimeter so you do 10x2=20 and 20x2=40 and add 20+40 to get 60 so the answer is 60 cause it says "fencing" which is the outer border

therefore answer is 60 feet

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3 years ago

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The diameter of a circle is 6 in. Find its area to the nearest tenth.

Marrrta [24]

Answer and Step-by-step explanation:

The area formula for a Circle is:

A = $\pi r^2$

Diameter is equal to the radius times 2.

So, divide the diameter to get the radius.

6 divided by 2 equals 3.

Now, plug it into the formula.

$A = \pi (3)^{2}$

A = $9\pi$

Plug this into your calculator by multiplying 9 by pi.

We get the answer to be 28.3 when rounded to the nearest tenth.

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2 years ago

Please I’m struggling

insens350 [35]

Answer:

1080cm²

Step-by-step explanation:

surface area=sum of the area of all the shapes

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10*14=140cm²

24*14=336cm²

Area of slanting figure=26*14=364cm²

add all the results

240+140+336+364=1080cm²

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3 years ago

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What digit is in the tens place in the number 7,836

Sidana [21]

Answer:

Step-by-step explanation:

The 3 is in the tens place representing the number 30.

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What is the variable in the expression below? 9.X

Ludmilka [50]

Answer:

The variable in that expression is x

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