.Amy is an installer for the telephone company. She earns $10 per hour. How much does she earn in 40 hours?

Answers

Answer 1

Answer:

Hi all you would do is 10*40 which is 400, so she would have earned 400 dollars in 40 hours

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Hurry! You work at a campus book store and a customer needs a textbook that you do not have in stock. You can order the textbook from Campus Corner for $129.95, prior to a rebate of $9.00. Books R Us sells the same textbook for $145.00, prior to a discount of 15%. What is the percent difference in the final cost of the two items?

O 0.018%

O 0.019%

O 1.87%

O 1.90%

O 2.10%

Answers

Answer:

.187

Step-by-step explanation:

How do you have factor y=6x²+24x-192 and find the zeros?

Answers

$y=6x^2+24x-192\n\ny=0\ \ \ \Leftrightarrow\ \ \ 6x^2+24x-192=0\ /:6\n\nx^2+4x-27=0\n\nx^2+2\cdot2\cdot x+2^2-2^2-27=0\n\n(x+2)^2-31=0\n\n(x+2)^2=31\ \ \ \Leftrightarrow\ \ \ (x+2= √(31) \ \ \ or\ \ \ x+2=- √(31))\n\nx=-2+ √(31)\ \ \ or\ \ \ x=-2- √(31)$

Mike is looking for a loan. He is willing to pay no more than an effective rate of 8.000% annually. Which, if any, of the following loans meet Mike’s criteria?Loan X: 7.815% nominal rate, compounded semiannually
Loan Y: 7.724% nominal rate, compounded monthly
Loan Z: 7.698% nominal rate, compounded weekly
a. Y only
b. X and Z
c. Y and Z
d. None of these meet Mike’s criteria.

Answers

Answer:

b. X and Z

Step-by-step explanation:

Since, the effective annual rate is,

$i_a=(1+(r)/(m))^m-1$

Where r is the nominal rate per period,

m is the number of periods in a year,

For loan X,

r = 7.815 % = 0.07815

m = 2,

Thus, the effective annual rate,

$i_a=(1+(0.07815)/(2))^2-1$

$=(1+0.039075)^2-1$

$=1.07967685563-1=0.07967685563=7.967685563\% \approx 7.968\%$

Since, 7.968\% < 8.000 %

Thus, Loan X meets his criteria.

For loan Y,

r = 7.724%= 0.07724

m = 12,

Thus, the effective annual rate,

$i_a=(1+(0.07724)/(12))^(12)-1$

$=(1.00643666667)^(12)-1$

$=1.08003395186-1=0.08003395186=8.003395186\% \approx 8.003\%$

Since, 8.003 > 8.000 %

Thus, Loan Y does not meet his criteria.

For loan Z,

r = 7.698% = 0.07698

m = 52,

Thus, the effective annual rate,

$i_a=(1+(0.07698)/(52))^(52)-1$

$=(1.00148038462)^(52)-1$

$=1.07995899887-1=07995899887=7.995899887\% \approx 7.996\%$

Since, 7.996 % < 8.000 %

Thus, Loan Zmeets his criteria.

Hence, option 'b' is correct.

Answer:

X and Z

Step-by-step explanation:

Find the area of the shaded region. Round your answer to the nearest hundredth.

Answers

4 semicircles of 90º=1 circle

Area of the shade region=area of the square - area of a circle

1)we calculate the area of the square.
area of a square =slide²
slide=8 m

area of a square=(8 m)²=64 m².

2) we calculate the area of the circle:
area of a circle=πr²
r=4 m

area of a circle=π(4 m)²=16π m²≈50.27 m²

3) we calculate the area of the shaded region:

Area of the shaded region=64 m² - 50.27 m²=13.73 m²

answer:The area of the shaded regios is 13.73 m²

8 times 8 is 64 so rounded to the neArest hundreth it is 100

Perform the indicated operation and write and standard form. -7i(6i-3)

Answers

-7i (6i - 3)

Perform the distributed multiplication to eliminate the parentheses:

-7i (6i) - 7i (-3) = -42i² + 21i

IF i = √-1 , then the expression is equal to (42 + 21i) or 21(2 + i) .

$-7i(6i-3)=\n -42\cdot(-1)+21i=\n 42+21i$

1.25, 12,5%, 1.257 x 10-2

Order from least to greatest

Answers

1.25, 12.5, and 1.257 x 10-2

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