Is x^ (-2) + 5 a polynomial expression? Why or why not?

Does 11/12 and 33/36 form a proportion?

a non-regular Pentagon has 3 sides that are the same length. the 4th side is 6 inches longer than the length shared by 3 of the sides, and the 5th side is 1 inch shorter than 2 times the length of the shared side length.

The mean of a set of credit scores is u=690 and o=14. Which statement must be true? A. Z690 is within 1 standard deviation of the mean. B. Z690 is between 1 and 2 standard deviations of the mean. C.

Which value of x makes 7+5 (x-3) = 22 a true statement? Choose 1 answer: A x=4 B x=5 C x=6 D x=7

Correct first step to solving 9 (x + 2) = 90

What is the simplest form of this expression? y^2 (-4y^2-7) - 2y^4

Can someone answer this question what is 1+1?

If sin tita = cos tita find tita between 0° and 30°

without multiplying determine which expression has a product greater than 52,678 A) 5/6 x 52,678 B) 9/9 x 52,678 C) 4/3 x 52,678 D) 3/5 x 52,678 How can I tell just looking at it

What is the value of the rational expression below when xis equal to 5? 15 - x / x-10