$x {}^{2} + 3x + 4 = (x + a) {}^{2} + b \\ x {}^{2} + 3x + 4 = x {}^{2} + 2ax + a {}^{2} + b \\ = x {}^{2} + a {}^{2} + 2ax + b \\ 2a = 3 \\ b = 4 \\ a = \frac{3}{2} \\ b = 4$

8 0

2 years ago

Please help! Look at the picture.

monitta

Answer:

Step-by-step explanation:

(27)^(-1/3) + (32)^(-2/5)

1/3 + 1/4

4/12 + 3/12 = 7/12

8 0

3 years ago

Is it

Hatshy [7]

Answer:

B. 90 degrees counterclockwise

Step-by-step explanation:

7 0

2 years ago

Which is the solution to the inequality?

I am Lyosha [343]

Answer: A

Step-by-step explanation:

Subtract 12 from both sides:

y + 15 - 15 < 3 - 15

Simplify:

y < -12

8 0

2 years ago