What is the rule of 30-60-90 triangles

Use a calculator to approximate the measure of the acute angle A to the nearest tenth of a degree. sin A=0.7793 ∠A =

On Monday, Xavier went to recess at 1:30 p. m. . Recess lasted for 20 minutes. • Xavier had math class after recess. It lasted for 55 minutes • Xavier walked home after math class. He took 25 minutes to walk home from school.

Which pair of numbers are not opposites? |7| and - 7 72 and - 72 27 and |-27| 27 and - 27

Which algebraic expression is a product with a factor of 5 A) 3y+1 B) 5 (y-6) C) - 2y+5+3 D) 5y-7

Solve this riddle: I am an odd number. I an less than 100. The some of my digit is 12. I am a multiple of 15. What number am I?

The cost of performance tickets and beverages for a family of four can be modeled using the equation 4x + 12 = 48, where x represents the cost of a ticket. How much is one ticket? $3.00

49.005 -7.157 show how you would work it out. Having trouble trying to explain it to my daughter with this common core math.

Round the number 2,787 to the nearest hundred

During a bike challenge writers have to collect various colored ribbons each 1/2 mile they collect the rent with each 1/8 mile they click the green ribbon and each 1/4 mile they collect the blue ribbon which colors of ribbon will be collected at the

If you are one of the first 100 people to join a new health club, you are charged a joining fee of $49. Otherwise, you are charged a joining fee of $149. The monthly membership cost is $38.75. a.