A coach is ordering shirts for a team
1 answer:
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Answer:
a = -1
Step-by-step explanation:
The line of symmetry for the parabola given by ...
y = ax² +bx +c
is
x = -b/(2a)
Using the given values, we have ...
-2 = -(-4)/(2a)
Multiplying by -a/2, we get ...
a = (4/2)(-1/2) = -1
The value of "a" is -1.
Answer:
The expression for rate per hour is .
Explanation:
Given:
A machine paints 340 toy boats in 45 minutes.
To Find:
Expression equals the rate per hour?
Solution:
Finding the expression for rate per minute:
So, rate per minute expression is =
Then, rate per hour expression
So, rate per hour expression is = 453.334 toys per hour.
Hence, the expression for rate per hour is