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3 years ago

Simplify each expression −4(6 + 5n)

Mathematics

1 answer:

Gnesinka [82]3 years ago

7 0

Answer:

$- 4(6 + 5n) \\ - 18 + 20n$

Step-by-step explanation:

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What is the sum of 2(5a-4a)+6a

lara [203]

The first step you would take is to combine all like terms in the parentheses.
5a - 4a = a
Then you would multiply 2 by a, which would equal 2a.
Finally, combine all like terms (all terms with a), to get 8a. (2a + 6a = 8a)
Hope this helps!

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4 years ago

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Write a fact family with 8, 9, and 72.

rewona [7]

8×9=72

9×8=72

72÷9=8

72÷8=9

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4 years ago

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Anna’s bank gives her a loan with a stated interest rate of 10.22%. How much greater will Anna’s effective interest rate be if t

Mumz [18]

Answer:

d. 0.0463% points.

Step-by-step explanation:

We have been given that Anna's bank gives her a loan with a stated interest rate of 10.22%.

To find the how mush the interest rate is effective, while compounded daily than compounded monthly, we will find the difference between interest compounded daily from interest compounded monthly.

$\text{The effectiveness of interest rate compounded daily}=(1+\frac{r}{365})^{365}-(1+\frac{r}{12})^{12}$

Let us convert our given rate in decimal form.

$10.22\%=\frac{10.22}{100}=0.1022$

Upon substituting our given interest rate in above equation we will get,

$\text{The effectiveness of interest rate compounded daily}=(1+\frac{0.1022}{365})^{365}-(1+\frac{0.1022}{12})^{12}$

$\text{The effectiveness of interest rate compounded daily}=(1+0.00028)^{365}-(1+0.008516666)^{12}$

$\text{The effectiveness of interest rate compounded daily}=(1.00028)^{365}-(1.008516666)^{12}$

$\text{The effectiveness of interest rate compounded daily}=1.1075891260304368-1.1071257622419648$

$\text{The effectiveness of interest rate compounded daily}=0.000463363788$

Let us convert our rate in percentage by multiplying our answer by 100.

$\text{The effectiveness of interest rate compounded daily}=0.000463363788*100$

$\text{The effectiveness of interest rate compounded daily}=0.0463363788\%$

Therefore, the Anna's effective interest rate will be 0.04633% points and option d is the correct choice.

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3 years ago

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The value of a baseball player's rookie card began to increase once the player retired. When he retired in 1998 his card was wo

Sergio039 [100]

Y=2.05(X)+8.59
Yes because the value of y (value of card) changes as (x) amount of years pass by.
In 2009, the card is worth $31.14

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3 years ago

Which expression is equivalent to (cd)^(5)

zubka84 [21]

If you would like to find the equivalent expression to (c*d)^5, you can do this using the following steps:

(c*d)^5 = c^5*d^5 = c^5d^5

The correct result would be c^5d^5.

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3 years ago

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