$\text{Simplify:}\\\\7x^2(6x + 3x^2- 4)\\\\\text{Use the distributive property:}\\\\42x^3+21x^4-28x^2\\\\\text{You can arrange them by exponent}\\\\21x^4+42x^3-28x^2\\\\\text{This means that your answer will be C).} 21x^4 + 42x^3 - 28x^2\\\\\boxed{\text{C).}\,\,21x^4 + 42x^3 - 28x^2}$

3 0

3 years ago

Without a calculator determine if the whether sin 192 is postivte or a negatvive

Slav-nsk [51]

The end point for a 192 degree angle is located in the third quadrant, where both x and y are negative, so both sin192, cos192 are negative.

6 0

4 years ago

The Dolphins football team gained 16 yards on their first play, then lost 11 yards on the next play. Write an addition expressio

sveticcg [70]

The Dolphins football team gained 16 yards on their first play, then lost 11 yards on the next play. Write an addition expression to represent this situation. Find the sum and explain its meaning.

Answer: On the first play, Dolphin's football team gained 16 yards.

On the 2nd play, Dolphin's football team lost 11 yards.

Therefore, the addition expression to represent this situation is:

$16 +(-11)$