Which of the following polynomial equations are valid identities?

a. (a + b) (2a + 1) = a (2a + 2b + 1)

b. (n+2) 2 - n2 = 4 (n+1)

only a?

Only b?

Both?

Neither?

and explain why

A pentegon can be divided into five congruent triangles as shown. the function y=5 tan theta models the height of each triangle. what is the area of the pentagon if theta=54 degrees?

Frida applied the steps below to find the product of (-1.2) (-9.4). Step 1: (-1.2) (-9.4) = (-9.4) (-1.2) Step 2: = (-9.4) (-1) + (-9.4) (-0.2) Step 3: = (9.4) + (1.88) Step 4: = 11.

Write the following in standard form using integers y=1/4 x - 2

What could be the first step toward correctly solving the equation 5x+70=-3x-10

Naughty spent $28 on 2 DVDs at this rate how much would five DVDs cost and what rate did she spend her money

Factor 360t 10t^3 - 120t ^2.

Which of the following sets is a subspace of set of prime numbers P Subscript nℙn for an appropriate value of n? A. All polynomials of the form p (t) equals=aplus+bt squaredt2 , where a and b are in set of real numbers Rℝ B.

The fitness club opens with 80 members each month the membership Increases by 15 members which equation represents the relationship between the number of months the club has been opened eggs and the total fitness club membership

If a square plate has side lengths of 5 inches, what is the length of the diagonal to the nearest tenth of an inch?

3. Sarah's parents give her a $100.00 allowance at the beginning of each month. Sarah spends her allowance on comic books. The graph below represents the amount of money Sarah spent on comic books last month.