Which of the following statements is true?

a. sin 18° = cos 72°

b. sin 55° = cos 55°

c. sin 72° = cos 189

d. Both a and c.

In 1975, the population of Hobart was 217135. In 1985 the population was 231135. What was the population increase from 1975 1985

X + y = 3 -2x + 4y = 6

Wright an inequality to represent each relationship and solve. Ten less than 5 times a number is less than 6 times the number decreased by 8

If Trent averages 78 miles per hour, how many minutes will it take him to travel 273 miles?

What is the surface area of a sphere that has a radius of 5cm? use 3.14

The first person has $15 and saves $1.50 each day. The second person has $55 and spends $4.50 each day. In about how many days will they have the same amount of money? a 7 days b 15 days c 21 days d 12 days

Ten students participated in a raffle to win a computer. There are two new computers being given away and two students will be chosen at random one at a time without replacement. How many possible ways are there to choose the two students?

A random sample of 121 bottles of cologne showed an average content of 4 ounces. It is known that the standard deviation of the contents (i. e., of the population) is 0.22 ounces. In this problem the 0.22 is Select one: a. a parameter. b.

What is the responsibility if a scientist

What is 1/8 x 3/8 and how do you do the problem?