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3 years ago

HURRY MY QUIZ IS TIMED Which expression is equivalent to 4x-9+6y + 17x?

Mathematics

2 answers:

NARA [144]3 years ago

8 0

Answer:

17x+6y+4x-9

Step-by-step explanation:

The numbers and varibles in the equation 4x-9+6y+17x are the same as 17x+6y+4x-9 meaning they would look the same simplified.

Nonamiya [84]3 years ago

4 0

B is probably gonna be the correct answer.

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How many divisors of 63 are also divisors of 72? (Recall that divisors may be positive or negative.)

frutty [35]

1, 3, 9 and -1, -3, and -9 i guess

hope this helps

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3 years ago

The charts show the effect of an interest rate adjustment on an adjustable-rate mortgage.

Tcecarenko [31]

Answer:

C. a higher monthly payment.

Step-by-step explanation:

<h3>Answer options:</h3>

Rate adjustment resulted in

A. a lower interest rate.

No, interest rate increased from 0.4 to 0.5 percent

B. a higher principal.

No, principal decreased from $200000 to $187000

C. a higher monthly payment.

Yes, monthly payment increased from $1059.85 to $1162.56

D. a higher number of payments.

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3 years ago

3. There is no expiration date on the debit card. True False

svet-max [94.6K]

The answer to the question is
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7 0

3 years ago

Read 2 more answers

-12.48 -(-2.99)-5.62

KATRIN_1 [288]

Answer:

$-15.11$

Step-by-step explanation:

$-12.48-(-2.99)-5.62=\\-12.48+2.99-5.62=\\-9.49-5.62=\\-15.11$

7 0

3 years ago

Read 2 more answers

9. Determine how long it takes for 80% of the material to decay.

Vilka [71]

Using an exponential function, it is found that it takes 18.6 days for 80% of the material to decay.

The amount of a substance after t days is modeled by:

$A(t) = A(0)e^{-kt}$

In which:

k is the decay rate, as a decimal.

A(0) is the initial amount.

The half-life is of 8 days, hence $A(8) = 0.5A(0)$ , and this is used to find k.

$A(t) = A(0)e^{-kt}$

$0.5A(0) = A(0)e^{-8k}$

$e^{-8k} = 0.5$

$\ln{e^{-8k}} = \ln{0.5}$

$-8k = \ln{0.5}$

$k = -\frac{\ln{0.5}}{8}$

$k = 0.08664339757$

Hence:

$A(t) = A(0)e^{-0.08664339757t}$

The time it takes for 80% of the material to decay it t for which $A(t) = 0.2A(0)$ , hence:

$0.2A(0) = A(0)e^{-0.08664339757t}$

$e^{-0.08664339757t} = 0.2$

$\ln{e^{-0.08664339757t}} = \ln{0.2}$

$-0.08664339757t = \ln{0.2}$

$t = -\frac{\ln{0.2}}{0.08664339757}$

$t = 18.6$

It takes 18.6 days for 80% of the material to decay.

To learn more about exponential functions, you can take a look at brainly.com/question/24906920

5 0

3 years ago