Answer :D
2530
Question explanation:

<em>I'm truly sorry if this is incorrect - Answered by Lilo</em>
Step 1:
a) Write the quadratic model
a = -15.64
b = -1.24
c = 5.23

b) t = 0.30

c) t = 0.52 seconds

d) 0.30 is more likely to be relaible.
e)
substitution and elimination means that you need to use one equation and substitute it in place of some variable in the other equation.
Consider the above two equations.
Take equation 1, which is 4x-2y=22 => x=(22+2y)/4
substitute the x value gained above in equation 2.
so, 2((22+2y)/4)+4y=6
22+2y+8y=12 => 10y = -10 => y= -1.
Substitute y= -1 in x value obtained in the beginning.
So, x= (22 - 2)/4 => 5.
There fore, x= 5 and y= -1
Hope it helps.
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
!!