Evaulate the follow experssion.

[ 5 x (20 - 11) - 21 ] : 8

Stanley has drawn a right angle triangle. One side is 14cm and another is 18cm. There are two possible lengths for the third side. What are they?

Two angles are supplementary if their sum is 180 degrees. One angle measures two times the measure of a smaller angle. If x represents the measure of the smaller angle and these two angles are supplementary, find the measure of each angle.

What is the value of x, when 3x2 = 18 3 4? A) x = ±1 1 2 B) x = ±2 1 2 C) x = ±3 1 8 D) x = ±4 1 3

Think About the Process At a little-known vacation spot, taxi fares are a bargain. A 63-mile taxi ride takes 72 minutes and costs $50.40. You want to find the cost of a 42-mile taxi ride. What unit price do you need?

What is 9 to the 4th power?

2X+4=20+5X A) 1/2 B) - 1/2 C) 2 D) - 2

Evaluate the geometric series or state that it diverges. one ninth 1 9plus+startfraction 7 over 81 endfraction 7 81plus+startfraction 49 over 729 endfraction 49 729plus+startfraction 343 over 6561 endfraction 343 6561plus + ...

For the past three months, grace used her cell phone for 43 minutes, 62 minutes, and 57 minutes. How many minutes would she have to use her cell phone this month for the average usage over the four months to be 55 minutes?

A manufacturer of a certain brand of appliance estimates that he can sell 5000 units a year at Php 900.00 each and that he can sell 1500 units more per year for each Php 100.00 decrease in price? What price per unit will give the greatest returns?

A dolphin is swimming at a constant speed. It travels 30 meters every 5 seconds. What is the slope of the line that shows the relationship between x, time in seconds, and y, the distance in meters traveled by the dolphin?