# Expression of a variable from the formula - high school - math problems

#### Number of problems found: 448

- Solve equation

solve equation: ? - Expression with powers

If x-1/x=5, find the value of x^{4}+1/x^{4} - Third member

Determine the third member of the AP if a4=93, d=7.5. - Find the 19

Find the 1st term of the GP ___, -6, 18, -54. - Demographics

The population grew in the city in 10 years from 30000 to 34000. What is the average annual percentage increase of population? - Negative difference

Find four arithmetic progression members between 7 and -6. - Expressions 3

If k(x+6)= 4x^{2}+ 20, what is k(10)=? - Height of the arc - formula

Calculate the height of the arc if the length of the arc is 77 and chord length 40. Does exist a formula to solve this? - Insert 7

Insert five harmonic means between 3 and 18 - Reciprocal value

How do I calculate a number x that is 9 greater than its reciprocal (1/x)? - What are

What are the four terms between 4 and 19? - Equation 23

Find value of unknown x in equation: x+3/x+1=5 (problem finding x) - Tetrahedron

What is the angle of the sides from the base of a three-sided pyramid where the sides are identical? - Parametric equation

Find the parametric equation of a line with y-intercept (0,-4) and a slope of -2. - Bamboo

Bamboo high 32 feet was at a certain height broken by the wind so the bamboo top reached the ground at a distance of 16 feet from the trunk. At what height from the ground was the bamboo broken? - Calculate 6

Calculate the distance of a point A[0, 2] from a line passing through points B[9, 5] and C[1, -1]. - HP - harmonic progression

Determine the 8th term of the harmonic progression 2, 4/3, 1,… - Airplane

Aviator sees part of the earth's surface with an area of 200,000 square kilometers. How high he flies? - In the 8

In the A. P. 36, 39, 42, …, which term is 276? - On line

On line p: x = 4 + t, y = 3 + 2t, t is R, find point C, which has the same distance from points A [1,2] and B [-1,0].

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