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lidiya [134]
3 years ago
6

The perimeter formula for a rectangle is 2l + 2w, where l is the length and w is the width.

Mathematics
1 answer:
s2008m [1.1K]3 years ago
6 0

Answer:

P = 20x + 6

Step-by-step explanation:

Perimeter formula:

P = 2(l + w)

Given:

l = 8x - 1

w = 2x + 4

Work:

P = 2(l + w)

P = 2(8x - 1 + 2x + 4)

P = 2(10x + 3)

P = 20x + 6

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Masja [62]
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4 years ago
$1500 is invested at a rate of 3% compounded monthly. Write a compound interest function to model this situation. Then find the
Marianna [84]

Answer:

<u>Equation</u>:  F=1500(1.0025)^{12t}

<u>The balance after 5 years is:  $1742.43</u>

<u></u>

Step-by-step explanation:

This is a compound growth problem . THe formula is:

F=P(1+\frac{r}{n})^{nt}

Where

F is future amount

P is present amount

r is rate of interest, annually

n is the number of compounding per year

t is the time in years

Given:

P = 1500

r = 0.03

n = 12 (compounded monthly means 12 times a year)

The compound interest formula modelled by the variables is:

F=1500(1+\frac{0.03}{12})^{12t}\\F=1500(1.0025)^{12t}

Now, we want balance after 5 years, so t = 5, substituting, we get:

F=1500(1.0025)^{12t}\\F=1500(1.0025)^{12*5}\\F=1500(1.0025)^{60}\\F=1742.43

<u>The balance after 5 years is:  $1742.43</u>

3 0
3 years ago
2x^2 - y^2+ xy Phân tích đa thức thành nhân tử
iren [92.7K]

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3 0
3 years ago
How many square inches does an 11" x 13" area encompass?
Kryger [21]
The answer to this is 143".
5 0
4 years ago
A direct variation function contains the points (-9,-3) and (-12,-4). Which equation represents the function? y= -3x, y= -x/3, y
disa [49]
To find the equation, find the slope from the two points. The slope formula is (y1-y2)/(x1-x2). Plugging in the two points, you should get 3 as your slope. 

As a line, the answer would be y=3x. Therefore, y=3x represents the function described. 
3 0
3 years ago
Read 2 more answers
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