Answer:
4 ft
7.2 ft
20 ft
Step-by-step explanation:
When the balloon is shot, x = 0.
y = -0.05(0)² + 0.8(0) + 4
y = 4
The balloon reaches the highest point at the vertex of the parabola.
x = -b / 2a
x = -0.8 / (2 × -0.05)
x = 8
y = -0.05(8)² + 0.8(8) + 4
y = 7.2
When the balloon lands, y = 0.
0 = -0.05x² + 0.8x + 4
0 = x² − 16x − 80
0 = (x + 4) (x − 20)
x = -4 or 20
Since x > 0, x = 20.
I think 710 is the answer
266+266+89+89= 710
Answer:
c) $ 75.37
Step-by-step explanation:
The correct question is:
Martha earned a gross pay of $1,215.60 last week. Using the fact that Social Security tax is 6.2% of gross pay, determine the
amount of Social security tax deducted from Martha's gross pay
a $7.54
b. $65.37
c. $75.37
d. $75.40
<u>ANSWER: </u>
<em>Martha's gross pay </em>= $ 1,215.60
<em>Social Security Tax </em>= 6.2%
<em><u>Calculate Social Security tax:</u></em>
6.2% of 1,215.60
6.2/100 x 1,215.60 = $ 75.37
Therefore, the correct answer is option c: $ 75.37
!!
Answer:
(1,-4)
Step-by-step explanation:
