If 3x + 7 = 28, what is x?

An airplane has a speed 590 km/h . If a wind begins blowing from the southwest at a speed of 94.9 km/h (average). In what direction should the pilot aim the plane so that it will fly due south?

What is a mathematical phrase?

A banana peel weighs 1/8 the total weight of a banana. If an unpeeled banana balances a peeled banana of the same weight plus 7/8 of an ounce, how much does the banana weight with the peel?

Solve 2x – 7 = 6x – 15

How do you write the algebraic expression for “six times the sum of a number and 15 is -42”?

Solve a \quadratic expression by factoring: x^3+18x^2+45x=0

A 64-kg hiker climbs to the top of a 3700 m-high mountain. The climb is made in 5.5 hr starting at an elevation of 2900 m. Calculate the average power output in watts. a. Calculate the average power o

Simplify the expression. \frac{8x^{2} + 10x – 3}{2x^{2} – 7x – 15}

Find the indicated difference quotient and simplify your answer f ( x ) = x 3 + 3 x , f ( x + h ) f ( x h , h 0 f ( x ) = 1 / x 2 , g ( x ) g ( 3 ) / ( x 3 ) , x 3 f ( t ) = 1 / ( t 2 ) , f ( t ) f ( 1 ) / ( t 1 ) , t 1

Solve for x: 8x – 2 = -9 + 7x.

Explain how to determine if a \quadratic equation has no real solution.

Find y if 6y – 8 – 6 – 8y = 4.

Given y = 2x^2 – 4x-1 , find the vertex, focus and the equation of the directrix line.

(a) Write the expression in terms of natural logarithms. (Express all logarithmic functions in terms of ln(x) in your answer.) log_{8.9} 135 = (b) Give a calculator \approx imation. log_{8.9} 135 \approx

The best definition of statistics is: a.The practice or science of studying the data distribution and determinants of health-related states and events in specified populations b. The practice or science of collecting and analyzing numerical data for the p

What are the steps to solve the equation 5x – 2 = 3x^4?

Solve the following \quadratic equation by factoring. First, write the expression in completely factored form. Then write the real number solutions. -4x^{2} = 12x

At a Hitchcock film festival, Lela watched ”Topaz” and ”Frenzy,” once each, and ”Family Plot” twice, for a total of 501 minutes. Family Plot is five minutes longer than Frenzy. What is the sum

From a box of 10 light bulbs, you are to remove 4. How many different sets of 4 light bulbs could you remove?

How many numbers from 1 to 10,000 contains number 7?