What percentage is 125 from 1000


Answer 1



Step-by-step explanation:

125 is 12.5% of 1000

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B and A

Step-by-step explanation:

Mark the person above me brainliest
(A question needs two answers so the asker can have the brainliest option)
Best of luck

The height of a cylinder is decreasing at a constant rate of 1 centimeters per minute, and the volume is decreasing at a rate of 2341 cubic centimeters per minute. At the instant when the height of the cylinder is 1010 centimeters and the volume is 577 cubic centimeters, what is the rate of change of the radius? The volume of a cylinder can be found with the equation V=pi r^2 h. Round your answer to three decimal places.


Let's organize our given information.



(dr)/(dt)=?, h=1010, V=577

V=\pi r^2h

What I'd like to do is solve for r first, it'll help later.

577=\pi r^2(1010)



Now, we can differentiate our formula for the volume of a cylinder to find the rate of change of the radius.

V=\pi r^2h

Use the product rule of differentiation.

(dV)/(dt)=2\pi rh(dr)/(dt)+\pi r^2(dh)/(dt)

Plug in the information we are given.

-2341=2\pi (0.426)(1010)(dr)/(dt)+\pi (0.426)^2(-1)

Solve for (dr)/(dt).




The rate of change of the radius is -0.866 centimeters per minute.

Hope this helps!

Which of the following ratios is not equivalent to 1.22?



Where are options

Step-by-step explanation:

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I need help urgently!!José writes this problem:

675 divided by 1600

Which expressions can be used to represent this problem?

Select each correct answer.

A) 675 ÷ 1600

B) 1600 ÷ 675

​ C) 1600675 ​

​ D) 6751600 ​

​ E) 1600675 ​

​ F) 6751600



The answer is A) 675 ÷ 1600.

Step-by-step explanation:

The answer is A) 675 ÷ 1600. 675 divided by 1600 means that the 675 will be split into 1600 parts. It's like you have 50 apples and you want to split it into two, can also be said or written as 50 DIVIDED BY 2.

In addition, If the statement says that 675 divides 1600 it means that the 1600 will be split into 675 part.

The perimeter of a rectangle, P, is given by P = 2L + 2W, where L is its length and W is its width. What is the perimeter of a rectangle of length 9 ft and width 13 ft?


Answer: 44 ft

Step-by-Step Explanation:

Length (L) = 9 ft
Width (W) = 13 ft
Perimeter (P) = 2L + 2W

Substitute values of ‘L’ and ‘W’ :-

= 2L + 2W
= 2(L + W)
= 2(9 + 13)
= 2(22)
= 2 * 22
=> 44

Hence, Perimeter (P) = 44 ft

2. The path of a high diver is given by y = + (2x2 – 9x – 56), where y is the height of the diverabove the water and x is the horizontal distance from the diving board (in feet). How far from the
end of the diving board is the diver when he hits the water?



The diver will be 8 feet from the end of the board when he hits the water.

Step-by-step explanation:

The diver hits the water when y = 0.

To find the distance, we have to find the values of x when y = 0.

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^(2) + bx + c, a\neq0.

This polynomial has roots x_(1), x_(2) such that ax^(2) + bx + c = (x - x_(1))*(x - x_(2)), given by the following formulas:

x_(1) = (-b + √(\bigtriangleup))/(2*a)

x_(2) = (-b - √(\bigtriangleup))/(2*a)

\bigtriangleup = b^(2) - 4ac

In this problem, we have that:

y = 2x^(2) - 9x - 56

2x^(2) - 9x - 56 = 0


a = 2, b = -9, c = -56


\bigtriangleup = b^(2) - 4ac = (-9)^(2) - 4*2(-56) = 529

x_(1) = (-(-9) + √(529))/(2*2) = 8

x_(2) = (-(-9) - √(529))/(2*2) = -3.5

It is a horizontal distance, so the answer is a positive value.

The diver will be 8 feet from the end of the board when he hits the water.