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3 years ago

ANSWER QUICK PLZ

2 answers:

6 0

2/3 for 60 = 20
7/10 for 35 = 24.5
5/6 for 45 = 37.5

a. Add all the numbers
20 + 24.5 + 37.5 = You spent $82
b. Add the original prices and then subtract the amount you actually paid
60+35+45 = 140 140 - 82 = 58 You save 58$
c. price you saved = 58 original price = 140
58/140 or 29/70

musickatia [10]3 years ago

3 0

A. 60(2/3) + 35(7/10) + 45(5/6) = $102.00

b. 60 + 35 + 45 = 140 = original price
140 - 102 = $30 saved

c. 102/140 = .7286 * 100 = 72.86 % (not sure how you need it rounded)

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Write an explicit formula for the An, and the n^th term of the sequence 24,-12,6,....

Annette [7]

Answer:

$T_n = -48* (-\frac{1}{2})^{n}$

Step-by-step explanation:

Given

$24, -12, 6,...$

Required

Write a formula

The above sequence shows a geometric sequence because:

$r = \frac{-12}{24} = \frac{6}{-12} = -\frac{1}{2}$ -- common ratio

The equation is determined using:

$T_n = ar^{n-1}$

Where

$a = 24$

Substitute values for a and r

$T_n = 24* (-\frac{1}{2})^{n-1}$

Apply law of indices:

$T_n = 24* (-\frac{1}{2})^{n} * (-\frac{1}{2})^{-1}$

$T_n = 24* (-\frac{1}{2})^{n} * 1/(-\frac{1}{2})$

$T_n = 24* (-\frac{1}{2})^{n} * 1*-2$

$T_n = 1*-2*24* (-\frac{1}{2})^{n}$

$T_n = -48* (-\frac{1}{2})^{n}$

<em>The above represents the explicit formula</em>

7 0

3 years ago

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IgorLugansk [536]

(y + 1)^3 would just be dividing the two

If you want it completely simplified, then it’s the following:

(y + 1)(y + 1)(y + 1)

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= y^3 + y^2 + 2y^2 + 2y + y + 1

= y^3 + 3y^2 + 3y + 1

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3 years ago

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svet-max [94.6K]

The answer is 25 degrees

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lesya692 [45]

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