Which of the following statements is true?

a. sin 18° = cos 72°

b. sin 55° = cos 55°

с. sin 72° = cos 18°

d. Bоth a and c.

Airports are identified with 3-letter codes. For example, the richmond, virginia airport has the code ric, and portland, oregon has pdx. How many different 3-letter codes are possible?

You can model that arch of a building entrance by using the equation y=-13 (x-5) (x-6), where x and y are measured in feet. The x-axis represents the ground. Find the width of the arch at the ground.

The product of two consecutive even integers is 224. Find their sum.

Stella wrote 1/7 of a page in 1/15 of a minute. How many minutes does it take her to write a full page?

Which choice is equivalent to the fraction below 5/13 a. 5 divided by 13 b. 5 - 13 c. 5 x 13 d. 13 divided by 5

10 children in kindergarten class any dog 14 children in the class do not own a dog find the ratio of the number of children that on a dog to the number of children in the class express the ratio in a simplify fraction

A bunch of 6 bananas cost $3.54. What is the unit rate?

Christopher buys a basket of eggplants for $6 before tax. the sales tax is 3%. what is the total price Christopher pays for the basket of eggplants?

12mn square - 18m square n square

Mrs. amerin made a cylindar pencil holder it has a height of 5 inches and a diameter of 3 inches how much material will she need to make her pencil holder