5. A fountain has two drainage valves. With the first valve open, the fountain drains completely in 6 h. With only the second valve open, the fountain drains completely in 4.25 h. About how many hours will the fountain take to drain with both valves open? Round your answer to the nearest tenth.

Q: d^2=36? 4s=2s-2+3s? b+25+b-25?

A:

Q: 6^2(3)+4=8 explain why the answer to this equation is incorrect. Provide the correct answer.

A: Given, The equation is 6^2(3)+4=8.

Q: Explain how to simplify the expression 7x - [3x - (2x - 4) + 2] - x

A: The given expression is as below :         7x-[3x-(2x-4)+2]-x

Q: Describe the rational numbers.

A: Rational Numbers

Q: Solve: 53|2x2 > 10

A:

Q: 21 Solve x + 2x-3=0 x = {

A:

Q: How do i put this answer in dimensional analysis form with fractions?

A:

Q: how do you turn -5x2 into cube

A: Step 1: express the factors exponentially equivalent to cube root. hence;            -5 = (-5)1/3…

Q: Multiply rational expressions (h^2+5h-6) × 10h^2/2h^2+12h

A: Multiply rational expressions

Q: What are the steps to the Quadratic Formula, for x2+2x--7=0? (Explained in detail please)

A:

Q: What is the solution to: -2x^3+7=135

A:

Q: how do i get from 4x+9=21 to 4x=12

A:

Q: 1. 3.7 x + 10 = 25 Solve

A:

Q: Simplify. (√5+3)(√5-3)

A:

Q: Rationalize (2/(-2-square root of 7))

A:

Q: 2 Solve: la .5-9 2-5-5 d -5-1 |• -5-2 Ir 증-4-10

A: Our objective is to solve the above equations.

Q: Solve: x + 2 < 5 and 2x - 4 < -2.

A: We have to solve x+2&lt;5 and 2x-4&lt;-2

Q: i can't write these answers in fraction form how do i convet them ?

A: Determine equivalent decimal of the fraction.

Q: solve for -16x2+132X+500?

A: Given,-16x2+132x+500This is a quadratic equation, so we take-16x2+132x+500 = 0⇒6x2-132x-500 = 0

Q: 3a-5a+80a-\

A:

Q: How can I solve " x+3 =-5x"? Thank You!

A: We have to solve

Q: How do you solve 5x^2+7x=4x^2+x-18?

A: First take all the terms on one side of the “equal” sign and “zero” on the other side, it gives

Q: What would be the ratio of this equation (-3+i5)/(-6+i8)? &amp; what would be the product of this…

A: Given:

Q: rational expressi

A: Rational Expression: 5(x-3)(2x-1)10(x-3)2

Q: What is the root X-1 6 N|X 2 11

A:

Power Operation

Power operation is topic of algebra in Math. It is use to represent repeated multiplication. Very big number and very small number can be easily express using power operation. Power operation is useful in many fields. In space engineering, it helps in representing the distance or size of particular heavenly body. In medical field, it is used to represent very small size. In medical field it helps to mention size of bacteria or virus. 

Exponents

The exponent or power or index of a variable/number is the number of times that variable/number is multiplied by itself.