Which equation is not an identity?

tan (-t) = - tan t

tan t (csc t + cot t) = sec t + 1

sin tcot t = cos t

cos2t - sin2t = - 1

Which set of integers is not a pythagorean triple? 12,16,20/10,24,26 / 14,48,50/27,32,45

A small toy company makes only cars and trucks. The profit made on cars is $2 each and the profit made on trucks is $3 each. To stay in business, the company must make at least $500 profit each week.

A mint produces 150,000 souvenir coins each year. IN a random sample of 400 coins, 3 have a misprint. Predict the number of coins that will have a misprints in a year.

Choose the correct statement. -2<-3 5>6 4>-4 0<-6

Which rate is a unit rate? A: $120/3 tickets. B: 60gallons every 4 hours. C: 10 miles/10 hours. D: 1/2 cup per serving.

Tomas has two boxes to be shipped. One box weighs 3 / text{ kilograms}3 kilograms3, start text, space, k, i, l, o, g, r, a, m, s, end text. The other box weighs 720 / text{ grams}720 grams720, start text, space, g, r, a, m, s, end text.

Paige saw 142 tourists in July. August, and September. She saw 32 tourists in July and 89 tourists in August. How many did Paige see in September

Equivalent expression 3p+12m+8

The value of the expression 6+5 (3) / 4-10is

Drive-in movies were popular in the 1930s and 1940s. In 1933, there were 100 drive-in theater in the U. S by 1945 there were 2200. What was the percent of increase from 1933 to 1945?