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.

Flynn opens a saving account. In one 3 month period, he makes deposit of $75.50 and $55.25. He makes withdrawal of $25.15 and $18.65. His balance at the end of the 3 month period is $210.85. Explain how you can find his initial deposit amount?

Dory's grandma runs a chicken farm. The number of eggs her hens lay is given by the equation e = 3h, where e is the number of eggs and h is the number of hens. If there are 500 hens on the farm, how many eggs would they lay at this rate?

Is y=1-x a linear equation

What is the volumn of cone t if the volumn of cone s is 4704pie

Lisa is 6 years older than two times her brother Sammy's age let's represents a message which expression represents Liza's age to s s plus 6 6s plus 2 or 2 s + 6

What is (x - 4y) (-3x - 2y) = ?

How do you solve 5h-6-h+10=12

The variable z is directly proportional to x. When x is 16, z has the value 176. What is the value of z when x = 24?

John is making a tent for his next camping trip out of waterproof material. He is going to use two different colors for the tent and needs to know how many square yards of material he will need for the lateral portion of the tent.

How many solutions does the equation |x+7|=0 have?