Use a half-angle identity to find the exact value of tan 157.5°.

What os the solution of the system using elimination 2x+5y=17 6x-5y=-9

At Safeway, 4 pounds of dog food cost $7.20. What is the unit price, or price per pound of dog food?

If p = q and q = r, which statement must be true? ОА. r = p ОB. s = p ОC. p = r OD. p = s

A diver is at an elevation of - 18 feet relative to sea level. The diver descended to an undersea cave that is 4 times as far from the surface. What is the elevation of the cave?

Simplify the expression 40b-4b by combining like terms

Let x = 20 Which expression has a value greater than 43 - 10? 5x-30 8 (x - 10) 5 (2x-26) 5x - 100

Identify the two statements that contradict each other: A) Line FA || Line AC B) Line FA and AC are skew C) Line Fa and AC do not intersect

The difference of 9 times a number and 2 is 67. Which equation below can be used to find the unknown number?

We need to substitute these problem you can take first one to understand

Which of the following situations can be represented by the absolute value of 10? Check all that apply. The temperature is 10 degrees below zero. Express this as an integer. Determine the size of Harold's debt if he owes $10.