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2 years ago

8

What is the exact value of cotangent (StartFraction 3 pi Over 4 EndFraction)? –1 Negative StartRoot 2 EndRoot 1 StartRoot 2 EndR

oot.

1 answer:

timurjin [86]2 years ago

6 0

1 negative startroot 2 end root 1 start root 2 end root

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What is the surface area of the cylinder d = 10 h = 7

Anna11 [10]

The answer is 120 $\pi$ . Hope I helped!

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2 years ago

What are the solutions of the equation x4 – 5x2 – 36 = 0? use factoring to solve.

algol13

X^4 - 5x^2 - 36 = 0
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3 years ago

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Two pyramids are similar with a ratio of surface areas of 25:36. Find the volume of the larger pyramid given that the first has

ki77a [65]

Answer:

432m^3

Step-by-step explanation:

The computation of the volume of the larger pyramid is shown below:

Let us assume the volume of the larger pyramid be x

Given that

The ratio of two pyramids is 25:36

We can say that

The Ratio of side = (The ratio of surface area)^ $\frac{1}{2}$ = $\frac{5}{6}$

Now

ratio of volume = (ratio of side)^3 = $\frac{5^{3}}{6^{3}}$ = 125 : 216

Based on the above information, the calculation is as follows

$\frac{125}{216} = \frac{250}{x}$

So,

$x = \frac{250 \times 216}{125}$

= 432m^3

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3 years ago

There are 40% more black balls than white balls in a bag.

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3 years ago

Select all the ratios that are equivalent to the ratio 12 : 3. Explain how you know.

oksano4ka [1.4K]

Answer:

the answers are c, d, &f

Step-by-step explanation:

the equivalence to 12:3

1200:300. = 12:3 (reduce by 100)

12:3= 4:1 (reduce by 3)

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3 years ago

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