2.
1 answer:
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Answer:
So, option A is correct.
Step-by-step explanation:
To find the inverse of the matrix, the formula is:
Inverse of the matrix exists if |A| does not equal to 0
|A| = 7 * 9 -( -2 * -10)
|A| = 63 - 20
|A| = 43
AS |A| ≠ 0
so inverse exist.
now finding Adj A
=
So, option A is correct.
So the formula for finding the area of a cylinder is 
. r=radius. If we put the numbers into the equation it is 
We get 6 as the radius because half of 12 is 6. 6 squared is 36 and 6*14= 84. So our equation is now 
. 2*pi=6.28318530718 but let's round that to 6.283. So now our equation is much simpler 6.283(36)+6.283(84). Just multiply them. 226.188+527.772= 753.96 is your final answer.
Answer:
About 32% of her pay was deducted ⇒ 2nd answer
Step-by-step explanation:
Lisa’s gross pay was $1204.89
Her net pay was $818.44
We need to find the percentage of the amount deducted from her pay
<u><em>Lets calculate the deduction amount</em></u>
The deduction amount is the difference between the gross pay and
the net pay
∵ The amount deducted = gross pay - net pay
∵ Gross pay = $1204.89
∵ Net pay = $818.44
∴ The amount deducted = 1204.89 - 818.44 = $386.45
<u><em>Now lets find the percentage of the amount deducted </em></u>
∵ Percent of deducted = [amount deducted/gross pay] × 100%
∵ The amount deducted = $386.45
∵ Gross pay = 1204.89
∴ Percent of deducted = × 100%
∴ Percent of deducted = 32.07%
<em>About 32% of her pay was deducted</em>