For this case we have the following equation:
f (x) = x ^ 2 + bx-49
Deriving we have:
f '(x) = 2x + b
We match zero:
0 = 2x + b
We clear x:
x = -b / 2
The axis of symmetry is at x = 8, therefore:
x = -b / 2 = 8
Clearing b:
b = -2 * (8)
b = -16
Answer:
the value of b is:
b = -16
The answer is B all angles are right angles.
Answer: 2
Step-by-step explanation 7 - 20 + 8 + 11 - 3 + 9 = 12 divided by 6 because there are 6 numbers equals 2
Answer:
9 inches of snow fell in the 7-hour snowstorm.
Step-by-step explanation:
To find your answer write an equation to find your answer.
1 inch per hour for two hours 1(2)
2 inches per hour for four hours 4(2)
and 1 inch in the last hour
so add those up
1(2)+4(2)+1
2+8+1
9
Let the number of men and the number of women in the beginning be x and y
Now,
Now, In 2nd case,
No. Of men=x-63 and no. Of women =y-12
Now,the ratio becomes
Now,we have, 2x=5y
Putting the value of Y=56 in 2x=5y,we get,
Hence, the number of men was 140 and the no. of women was 56
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