# Expression of a variable from the formula + third power - practice problems

#### Number of problems found: 105

- Sphere volume formula

If V=4/3 π r^{3}, find, the value of V when r = 7, the value of r when V=113 1/7 - Evaluate statement

Which is a correct statement about the description “two less than the quotient of a number cubed and sixteen, increased by eight” when n = 4? Choices: The value when n = 4 is 6. The value when n = 4 is 7. The value when n = 4 is 9. The value when n = 4 is - Jointly and cube power

If y varies jointly as x and the cube of z and y=16 when x=4 and z=2, find an equation that represent this relationship - Seventh term

The first term of a geometric sequence is 9 and the third term is 1296. Find the seventh term. - Two expressions

When x = 3 and y = 5, by how much does the value of 3x² – 2y exceed the value of 2x² – 3y? - Given 2

Given g(x)=x^{2}+x+1 where x=t². What is g(t²)? - If x=4

If x=4 and y=-3, what is the value of the expression x² + 2xy - 4x + 3y + y²? - Fraction unknowns

Divide of fractions with unknowns: Fraction 1: The quantity x squared plus 6 times x plus 9 over the quantity x minus 1. Fraction 2: the quantity x squared minus 9 over the quantity x squared minus 2 times x plus 1. Find Fraction 1 over Fraction 2. - Evaluate expression

Evaluate following expression: 5 to the power of 2 - (4x4) divided by 2 = - Mr Duma

Mr Duma recently inherited a rectangular plot, part of the estate left by his late father. The plot with the following dimensions: Length=2x+1;Width=x-1. Determine the formula, in terms of x, that best describes the area of the rectangular plot. He has pl - Two gardens

The flower garden has a square shape. The new garden has the shape of a rectangle, and one dimension is 8 m smaller, and the other is twice as large as in a square garden. What were the original garden dimensions and the new garden if both gardens' area i - The length 2

The length of a rectangle is 12y² – 15y + 8 and the width is 7y – 11. Find the area of the rectangle - The sum

The sum of the squares of two immediately following natural numbers is 1201. Find these numbers. - Three cubes

Two cube-shaped boxes with edges a = 70 cm; b = 90 cm must be replaced by one cube-shaped box. What will be its edge? - What is 10

What is the measure of the square side whose area is (4x² + 28x+49) square units? - The cube

The cube has a surface of 600 cm². What is its volume? - Sum of GP members

Determine the sum of the GP 30, 6, 1.2, to 5 terms. What is the sum of all terms (to infinity)? - What is 10

What is the 5th term, if the 8th term is 80 and common ratio r =1/2? - What are 2

What are the two more terms of the GP a, ax, ax^{2}, ax^{3}, __, __? - If the 3

If the 6th term of a GP is 4 and the 10th is 4/81, find common ratio r.

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Expression of a variable from the formula - practice problems. Third power - practice problems.