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2 years ago

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Evan deposits $500 in a savings account that earns interest. Let f(t)=500 and g(t)=1.05t, where t represents the time, in years,

since the account was opened.
Which expression models the amount of interest, in dollars, earned on the account as a function of time?
A. f(t)⋅g(t)

B. g(t)−f(t)

C. f(t)+f(t)⋅g(t)

D.f(t)⋅g(t)−f(t)

1 answer:

xxTIMURxx [149]2 years ago

8 0

Answer:d

Step-by-step explanation:

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Answer:

Step-by-step explanation:

Given a triangle has points:

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To find:

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Horizontal leg AB and

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Please refer to the attached diagram for the labeling of the points on xy coordinate plane.

We can simply use Distance formula here, to find the distance between two coordinates.

Distance formula :

$D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

For BC:

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Horizontal leg, AC:

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Answer:

The perimeter of the trapezoid is $38.25\ units$

Step-by-step explanation:

we know that

The perimeter of the trapezoid is the sum of its four side lengths

so

In this problem

$P=QR+RS+ST+QT$

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we have

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step 1

Find the distance QR

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substitute the values in the formula

$d=\sqrt{(16-8)^{2}+(14-8)^{2}}$

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step 2

Find the distance RS

$R(14, 16), S(20, 16)$

substitute the values in the formula

$d=\sqrt{(16-16)^{2}+(20-14)^{2}}$

$d=\sqrt{(0)^{2}+(6)^{2}}$

$d=\sqrt{36}$

$RS=6\ units$

step 3

Find the distance ST

$S(20, 16),T(22, 8)$

substitute the values in the formula

$d=\sqrt{(8-16)^{2}+(22-20)^{2}}$

$d=\sqrt{(-8)^{2}+(2)^{2}}$

$d=\sqrt{68}$

$ST=8.25\ units$

step 4

Find the distance QT

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substitute the values in the formula

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$d=\sqrt{(0)^{2}+(14)^{2}}$

$d=\sqrt{196}$

$QT=14\ units$

step 5

Find the perimeter

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