How do I factor this polynomial? This one: z^2+8z+7?

What is 3.92400 times 10 to the 5 in scientific notation

For the function f (x) = (4 - 2x) 2, find f-1 and the domain and range of f and f-1. Determine whether f-1 is a function.

Gabe has 4 birdcages. he keeps 5 birds in each cage. then gabe buys another birdcage. the new birdcage has the same number of birds. how many birds does gabe have now? use a bar diagram to represent the problem.

What are the three methods used to identify sample spaces and explain each one

A shipment of ball bearings with a mean diameter of 25 mm and a standard deviation of 0.2 mm is normally distributed. by how many standard deviations does a ball bearing with a diameter of 25.6 mm differ from the mean? 0.6 1 2 3

What is the inverse of g (x) = 1/x-1 and is it a function? 1/x + 1, yes 1/x, yes 1/x - 1, no 1/y - 1, no

A mixture of 17 %disinfectant solution is to be made from 10% and 20% disinfectant solution. How much of each solution should be used if 20 gallons of the 17% solution are needed?

The distance between city E and F is 678.35 miles and the distance between city F and G is 156.8 miles. What is the distance between city G and H if the total distance is 2,457 miles?

What percent of the payments made were due to interest for the months shown? a. 30.9% b. 32.6% c. 62.5% d. 63.4%

Here is a famous equation from geometry. c2 = a2 + b2 For which values of a and b will the value of c be a rational number? A. a = 1, b = 1 B. a = 2, b = 3 C. a = 3, b = 4 D. a = 4, b = 9