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If cos x = sin (20 + x) ° and 0° < x < 90°, the value of x is

°.

5x² (2x-1) - 3x (x² - 5x+4)

Find (fg) (-4) when f (x) = x + 5 and g (x) = 5x2 + 10x - 5.

16+5*4:2=42 insert parentheses to make the statement true

Tom had the following scores on math tests: 91, 95, 87 and 83. He has one more test this marking period. What is the lowest grade he can receive if he hopes to raise his average above 90?

in a class there are 115 students going on a field trip 2/5 are bringing a notebook on the field trip how many students are bringing a note book?

A rectangular cake has a length of inches and a width of inches. How many whole, square pieces of cake with side lengths of inches can be cut from the cake?

A rectangle has a perimeter of 25 meters. If the lengths of the sides of the rectangle are multiplied by 7 to make a new rectangle, what is the perimeter of the new rectangle?

What does it mean to the rise over run when the slope is an integer? A) the rise number is 1 B) the run number is always negative C) the run part of the slope is going to be one D) there will be no slope

At a toy store the children's department has bicycles and tricycles. There are 20 wheels on a group of bicycles each bike has 2 wheels how many bikes are there

Rewrite the equation X^2 - 8x - 9 = 0 so that it is of the form X^2 + bx = c