What are the values of a, b, and c in this equation?

x^2+4x-21=0

a = 1, b = 4, c = - 21

a = 1, b = 4, c = 21

a = 0, b = 4, c = - 21

a = 0, b = 4, c = 21

A circualr plate haa circumference 22.6 inches. What is the area if this plate? use 3.14

The interquartile range of a data set is 10 units. What does this represent?

The radius of a circle is 26 yards. Find the diameter

A teacher asks her students to divide into groups for 4 students to perform a lab. there are 36 students in the class. each lab group needs 1.25g of cuso4. how many grams of cuso4 will the class need?

A note has a wavelength of 0.77955 m. If the speed of sound is 343.00 m/s, what pitch is this note?

Select the letter of the correct answer. Suppose a bucket contains 1,898 sunflower seeds. If this bucket contains 26 times more seeds than another bucket, how many sunflower seeds are in the other bucket?

He radius r of a circle is increasing at a rate of 6 centimeters per minute. find the rate of change of the area when r = 35 centimeters. cm2/min

What is the volume of a cylinder, in cubic inches, with a height of 6 inches and a base diameter of 20 inches? Round to the nearest tenths place

Identify the vertex of the function, f (x) = 3 (x - 1) 2 + 5.

Find the inverse of the following function f (x) = cubed root of x+12