X2 + y2 + 4x - 18y + 81 = 0

What is the center of this circle?

What is the radius of this circle?

units

At 8:00 a. m., the outside temperature was - 16°. by 9:00 a. m., the outside temperature had dropped 6.5°. what was the outside temperature at 9:00 a. m.? a. 22.5° b. 9.5° c. - 9.5° d. - 22.5°

What is the surface of a sphere with the radius of 5 ft

Is 13.99 the same as 13.990

In this figure, sin (a) = 2 3 What is the value of cos (b) ? A) 1 3 B) 2 3 C) 2 3 D) 3 2

What are the multiples of 37?

Using 4, 16, 10, 24, and 25 create a problem in which the answer equals 1. You may use operations more than once.

Silas took 13 bags of glass to the recycling center. He still has 11 bags of plastic to take to the recycling center. Which equation could be used to find x, the total number of bags of glass and plastic Silas will take to the recycling center? A.

In a certain Algebra 2 class of 21 students, 6 of them play basketball and 14 of them play baseball. There are 5 students who play neither sport.

The product of my number and twice my number is 128. what is half my number? Explain how to solve the problem.

What is the rule that describes this pattern of numbers? 2, 3, 5, 7, 11, 13, 17, 19, 23, 29