Which is the standard equation for a circle centered at the origin with radius r?

A. x2 + y2 = r

B. x2 = y2 + r2

C. x + y = r

D. x2 + y2 = r2

The complex fourth roots of 5-5sqrt3i

Suppose you to multiply a whole number greater than 1 by the fraction3/5. will the product be greater than, less than, or equal to 3/5?

a train travels 304 miles in 4 hours if it continues to travel at the same rate how many miles will it travel in seven and a half hours

On a map of Texas, one inch represents 25 miles. If Dallas and San Antonio are 6.4 inches apart, how many miles apart are they? A) 1,600 B) 160 C) 256 D) 390.6

Irene has a credit card that uses the previous balance method. The opening balance of one of her 30-day billing cycles was $2510, but that was her balance for only the first 5 days of the billing cycle, because she then paid off her entire balance

Find the surface area of the cylinder to the nearest tenth of a square unit with a radius of 3cm and a height of 18.2 cm. use 3.14 for pi.

2.2 A Train is Traveling at ... A train is traveling at a constant speed and goes 7.5 kilo "1 dl a constant speed and goes 7.5 kilometers in 6 minutes. At that rate: 1. How far does the train go in 1 minute?

Which of the following represents the most accurate estimation of 664 - 127?

What is the rule if the input numbers are 1,2,3,4,5 and the output numbers are 2,5,10,17,26

What's the difference between 4.5 and - 3.5