Answer:
Step-by-step explanation:
Answer:
C. b²< 40
Step-by-step explanation:
2x²+ bx + 5=0 has no real solutions
=> D< 0
b² < 4ac
b²< 4(2)(5)
b²< 40
Answer:
x = -8
Step-by-step explanation:
g(x) = 8x + 2
given: g(x) = 8x + 2 = -62
8x = -62 -2
8x = -64
x = -8
Answer:
What is the average rate of change from x = −4 to x = 1? x= -4 x + 5
Answer:
24
Step-by-step explanation:
Let the number be x.
Sum of the number and 6: 
Divide it by 3: 
Result is 4 more than one quarter of the number:

Multiply both sides by 12:

Simplify:

Expand:

Subtract 24 from both sides:


Subtract 3x from both sides:


The number is 24.