Use a calculator to find the value of Sin 21°

Round to four decimal places.

A. 0.3839

B. 0.3584

C. 0.9336

D. 2.7904

Divide. Write in simplest form. To type a mixed number, leave a space between the whole number and the fraction. 1/8 : 1/2 = 3/4 : 9 = 1/3 : 8 =

The ratio of adults two children attending new exhibit at the Museum was found to be 8:5. Based on this ratio, if 390 people attended one day, how many would be children?

Write an equivalent expression for the expression shown below: a/3 + a/3 + a/3

What is 2 + 7? (Obviously i know the answer, but I'm giving out a free brainliest to 1st person to answer!)

B. After school, Alex skateboards at the same constant speed to his friend's house. It takes him 10 minutes, Write the fraction that represents constant speed, C, if he travels a distance of y.

A right triangle has legs that are 19 in. and 23 in. What is the area of the triangle

What equation results from completing the square and then factoring x2+4x=12

In two years the value of a car chnaged from 14,000 to 11,200 what is the percent of change

What is the difference 4 1/3 - (-2/3)

Elaine is painting a fence. she knows that she needs 1 gallon of paint for each 10 feet of fencing. The fencing will enclose a rectangular yard that is 3 yards long and 2 yards wide. how much paint does Elaine need?