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3 years ago

What is the volume of a right circular cylinder with a base diameter of 6 m and a height of 5 m? express you answer using pi

1 answer:

4 0

Well the formula to solve for the volume of a right circular cylinder would be, V=πr2h. For the radius, the number inserted into the formula would be half of the diameter measurement. Therefore, the radius would be 3 m. As for the height measurement, the number would remain the same of 5m. Once all figures are applied to the formula: V=π(3^2)(5), the answer could then be rounded either to the tenths or hundredths depending on what your teacher asks for. The answer in the end would come down to approximately 141.37 meters cubed.

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If sin A = 3/8, find the value of cosec A - sec A.

alexira [117]

Answer:

$\csc A - \sec A = \dfrac 83 + \dfrac{8}{\sqrt{55}}\\\\\csc A - \sec A = \dfrac 83 - \dfrac{8}{\sqrt{55}}$

Step by step explanation:

$\text{Given that,}\\\\~~~~~~\sin A = \dfrac 38 \\\\\implies \sin^2 A = \dfrac 9{64}\\\\\implies 1 - \cos^2 A = \dfrac{9}{64}\\\\\implies \cos ^2 A = 1 - \dfrac 9{64}\\\\\implies \cos^2 A = \dfrac{55}{64}\\\\\implies \cos A =\pm\sqrt{\dfrac{55}{64}}\\ \\\implies \cos A = \pm\dfrac{\sqrt{55}}8\\\\$

$\implies \dfrac 1{\cos A} = \pm\dfrac{8}{\sqrt{55}}$

$\text{Now,}\\\\\csc A - \sec A\\\\=\dfrac{1}{\sin A}- \dfrac{1}{\cos A}\\\\=\dfrac 83 -\left(\pm \dfrac 8{\sqrt {55}} \right)\\ \\\text{Hence,}\\\\\csc A - \sec A = \dfrac 83 + \dfrac{8}{\sqrt{55}}\\\\\csc A - \sec A = \dfrac 83 - \dfrac{8}{\sqrt{55}}$

6 0

2 years ago

Which of the following expressions are equivalent to 6 + (-4) - 5 ?

Gekata [30.6K]

Answer:

Step-by-step explanation:

A and C gives same result....

6 0

3 years ago

Read 2 more answers

Im so lost, please help me asap

almond37 [142]

Answer:

it's so simple ....

x + 141 = 135

x = 135 - 141

x = -6

it means ur answer is a

8 0

3 years ago

Which of the following describes the behavior of the graph shown over the interval (-2,2)?

sergejj [24]

Hello!

We are trying to describe the behavior of the graph given in the question.

To help us understand how to solve this question, we would need to understand concavity.

There are two types of concavity:

Concave up
Concave down

When a graph is concave up, the slope of the line would look like a "U".

When a graph is concave down, the slope of the line would look like a "U" that is flipped upside down.

In this case, we can see that the graph is concave down.

We can tell that the slope is negative due to the fact that the slope is going down, which results in the graph having a negative slope.

We can also tell that the graph is decreasing due to the fact that the line is doing downward.

Answer:

C). negative and decreasing

7 0

1 year ago

The highest temperature recorded in Greensburg was 35C. Write the opposite temperature.

hichkok12 [17]

Answer: the opposite answer is 35F

Step-by-step explanation: the C goes to a F

8 0

3 years ago