30 increased by 3 times the square of a number

What is the value of y in the equation 4 (5y - 8 - 2) = 185 - 15?

The pressure P exerted by a force varies inversely as the area A on which the force is applied. If 16 N/ft2 of pressure is exerted by a force on an area of 3 ft2, what is the pressure exerted by the same force on an area of 6 ft2?

A dvd drive has a maximum speed of 7200rpm if a dvd has diameter of 12 cm what is linear speed

21. SAT Scores Sample SAT scores for eight males and eight females are listed. 923 1017 1214 1042 1226 965 841 1053 1056 (1393 1312 2 1059 (1328 1175 1123 Male SAT scores: Female SAT scores: (a) Find the range, variance, and standard deviation of

Which system of equations can you use to find the roots of the equation? x3 - 10x = x2 - 6 y = x3 - x2 + 10x + 6 y = 0 y = x3 - x2 + 10x y = 6 y = x3 - 10x y = x2 - 6

a car has 15 gallons of gas in its tank the car travels 35 miles per gallon of gas how much gas does the car used to go 100 miles

Identify all factors of the expression 4x^2+17x-15 a. 2 b. 3 c. x - 5 d. x + 5 e. 4x - 3 f. 4x + 3

Factor out the common terms 6m - 21p

local bank employs 36 individuals of which 15 are smokers. What is the ratio, in simplest form, of the non-smokers to the total number of employees at the local bank?

Peter buys a small wind turbine for use on his farm. It generates 13,000 kWh of electricity in the first year. He uses 7,570 kWh of electricity and sells the remaining kWh to his energy suppliers. He receives £412.68 for the electricity he sells.