Solve - a+7=2a-8 Show your work.

In a batch of 440 water purifiers, 8 were found to be defective. What is the probability that a water purifier chosen at random will be defective? Write the probability as a percent. Round to the nearest tenth of a percent if necessary.

A worker at the zoo calculates the amount of fish, in pounds, needed in the weekly diet of an eagle and a bear. The eagle eats 6 pounds of food each week, and 60% of that weight must be fish.

Divide (5x^2 + 13x - 6) by (x + 3). A. 5x - 2x - 2 B. 5x - 2 C. 5x - 2x + 2 D. 5x + 2

If f (x) = -3x^2-2x+1, find 2[f (r) ]

In 2080, I am 60 years old, what year was I born

Suppose that a customer service center claims that the telephone calls it recieves last 112 seconds on average

When the distributive property is applied, which number completes the statement correctly? -7 • (-4 + 3.2) = - 7 • (-4) + • 3.2

The weight of a rock sample is measured to be 2.5 pounds. What is the percent of error in the measurement?

Solve the quadratic equation: x^2 = - 9

45% como una fraction en forma reducida