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lions [1.4K]
3 years ago
7

What is the value of x?

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
4 0
I think the answer is C
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I need help im stuck
Katyanochek1 [597]

Answer:

4712.4

Step-by-step explanation:

I got the same question a few days ago.

The volume is πr^2 * h / 3

r = 15

h =  20

225π * 20 / 3

1500π

It's 4712.38898

Round to 4712.4

6 0
3 years ago
Please answer I'm begging !!!
Maurinko [17]

Answer:

K=3,052

Step-by-step explanation:

18,010-14,958=3,052

3 0
3 years ago
Read 2 more answers
X + 2y = 3 3x - 2y = 5 What is the solution to the system of equations? A) (4, 3.5) B) (2, 1 2 )) Eliminate C) (2, -1) D) ( 1 2
sp2606 [1]

Answer:

The solution is B) (2, \frac{1}{2}).

Step-by-step explanation:

This system of equations can be solved by elimination, where we add the two equations together to eliminate one of the variables and solve for the remaining variable:

x + 2y = 3

<u>3x - 2y = 5</u>

4x = 8 or x = 2

To solve for 'y', plug in the value of x:  2 + 2y = 3 or 2y = 1 or y = \frac{1}{2}

Putting the values into the point (x, y)  = (2, \frac{1}{2})


8 0
3 years ago
Keion is calculating his expenses from his work trip to San Francisco. Below is the expense log he kept while traveling.
telo118 [61]

Answer:

D

Step-by-step explanation:

379.00 - 15.00 + 154.00 x 3 + 65.00 + 13.00 = 904

0.55 x 63 = 34.65

34.65 + 904 = 938.65

7 0
3 years ago
Read 2 more answers
Which of the following represents all solutions of x² - 4x-1=0?
andrey2020 [161]

Answer:

x=4.23 or x=-0..23

Step-by-step explanation:

Let x be the roots of given equation.

Given.

x^{2} -4x-1=0------------(1)

The standard form of quadratic equation is.

ax^{2} + bx+c=0-------------(2)

We can solve the roots by this quadratic formula

x=\frac{-b\pm\sqrt{b^{2}-4ac}}{2a}-----------(3)

We compare the equation 1 and 2.

where a=1, b=-4, c=-1

All values put in the equation 3

x=\frac{-(-4)\pm\sqrt{(-4)^{2}-4(1)(-1)}}{2(1)}

x=\frac{4\pm\sqrt{16+4}}{2}

x=\frac{4\pm\sqrt{20}}{2}

x=2+\sqrt{5}=4.23\\x=2-\sqrt{5}=-0.23

5 0
3 years ago
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