What is the exact value of cos (-pi/2)

Which number is NOT equivalent to the other three? Select the best answer from the choices provided. 25% 2.5 0.25 2/8

Evaluate the following limit. If the answer is positive infinite, type "I"; if negative infinite, type "N"; and if it does not exist, type "D".

the prices of three t-shirts are $24, $30, and $36 what is the probability of choosing a $24 t-shirt is 1/6. the probability of choosing a $20 t-shirt is 1/2. The probability of choosing a $36 t-shirt is 1/3. what is the expected value of a t-shirt?

Mikkel pays a 4 percent state income tax on his earnings. If he earns $1,867, how much state income tax can he expect to pay? $46.68 $74.68 $466.75 $746.80

All the fraction that is equivalent to 0.6 6/10 60/10 6/100 10/6 60/100

Mr. Haney has 11 coins in dimes and quarters. The value of his coins is $2.15. how many dimes does he have?

Different varieties of field daisies have numbers of petals that follow a fibonacci sequence. Three varieties have 13,21, and 347 petals. How many petals do the next two varieties of field daisy have? a. 42, 55 b. 47,60 c. 42,50 d. 55,89

A certain hybrid car can travel 1 4/11 times as far as a similar non hybrid car can, each on one gallon of gasoline. If the non hybrid car can travel 33 miles per gallon of gasoline how far can the hybrid travel on 4/5 gallon of gasoline?

What is the value of 6x+4x+8, when x=7

There are 46 runners in a race. how many ways can the runners finish first, second, and third