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sergejj [24]
3 years ago
14

Help please with this math question

Mathematics
2 answers:
Vanyuwa [196]3 years ago
8 0
To solve this question, simply use the formula to find the volume of the cylinder,

V = Pi r^2 • h

V = 3.14 • 4^2 • 4.

Then compare the value for volume to the closest number on the number line. Is it in between 2 numbers, exactly one number on the number line or very close to one number as in the number line.






amm18123 years ago
4 0
Answer:
The last point

Explanation:
Volume of cylinder can be calculated using the following rule:
volume of cylinder = pi * r^2 * h
where:
pi is a constant given as 3.14
r is the radius = 4 units
h is the height = 4 units
Substitute with the givens in the above equation to get the volume as follows:
volume of cylinder = 3.14 * (4)^2 * (4) 
volume of cylinder = 3.14 * 16 * 4 = 217.6
Comparing the calculated value to the points on the number line, we will find that the closest point is the last one (since it is the point somewhere between the 200 and the 250. The second point from the right is at 200 so we will take the last one)

Hope this helps :)
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By how much is the product of 9/5 and 8 1/4 greater than 5
Oliga [24]

Given:

The product of \dfrac{9}{5} and 8\dfrac{1}{4} greater than 5.

To find:

By how much the product of \dfrac{9}{5} and 8\dfrac{1}{4} greater than 5.

Solution:

First we need to find the product of \dfrac{9}{5} and 8\dfrac{1}{4}.

\text{Product}=\dfrac{9}{5}\times 8\dfrac{1}{4}

\text{Product}=\dfrac{9}{5}\times \dfrac{8(4)+1}{4}

\text{Product}=\dfrac{9}{5}\times \dfrac{33}{4}

\text{Product}=14.85

Now subtract 5 from the product.

14.85-5=9.85

Therefore, the product of \dfrac{9}{5} and 8\dfrac{1}{4} is 9.85 greater than 5.

3 0
2 years ago
1. What is the value of x? Show your work to justify your answer.
Reil [10]

Answer:

x=72 and the exterior angle is 154

Step-by-step explanation:

We will call the unknown angle in the triangle y.  Angle y and the angle (2x +10) form a straight line so they make 180 degrees.

y + 2x+10 =180

Solve for y by subtracting 2x+10 from each side.

y + 2x+10 - (2x+10) =180 - (2x+10)

y = 180-2x-10

y = 170-2x


The three angles of a triangle add to 180 degrees

x+ y+ 82 = 180

x+ (170-2x)+82 = 180

Combine like terms

-x +252=180

Subtract 252 from each side

-x+252-252 = 180-252

-x = -72

Multiply each side by -1

-1*-x = -72*-1

x=72

The exterior angle is 2x+10.  Substitute x=72 into the equation.

2(72)+10

144+10

154


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165 divided by 11 = 15
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