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stira [4]
3 years ago
11

Geometry, I will give brainliest. I need help fast

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
6 0

Answer:

x = 3.53    ( this may not be the exact number because my factoring is rusty)

Step-by-step explanation:

7x/(7x + 3) = (20x - 4)/(22x - 2)

7x(22x - 2) = (20x - 4)(7x + 3)

154x² - 14x = 140x² + 60x -28x -12

combine like terms & reduce:

14x² -46x - 12 = 0

divide by 2 to simplify:

7x² - 23x - 6 = 0

factor:

(7x + 1.7)(x - 3.53) = 0

x = 3.53

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What is the answer for 2+3n, if the n equals 1/2
tresset_1 [31]

Answer:

6.5

Step-by-step explanation:

Brainlest plsss :)

4 0
3 years ago
The radius of a semicircle is 9.1 centimeters. What is the semicircle's perimeter?
Sloan [31]

Answer:

<u>46.77 cm</u>

Step-by-step explanation:

Perimeter of the semicircle = Circumference + 2r

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  • 9.1 (3.14 + 2)
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8 0
2 years ago
Fran purchased an annuity that provides $5,400 quarterly payments for the next 10 years. The annuity was purchased at a cost of
guajiro [1.7K]

Answer:

$5400

Step-by-step explanation:

Gross income is any interest, wage etc(money received) given to someone which they account for before any deductions and tax. Fran will have to include all $5400 of her first quarterly payment into her gross income because there are no deductions yet and tax when you consider what is put in gross income. Fran would have earned this amount as a payment from the purchasing of the annuity as it serves as a payment back for purchasing an annuity which to Fran, is an investment.

4 0
3 years ago
B + 12x
GalinKa [24]

Answer:

Step-by-step explanation:

The expression shows the sum of two terms. The first term has coefficient 1. The second term is the product of 12 and x.

4 0
3 years ago
The number 42 is increased to 46. what is the percentage by which the number was increased?
Arte-miy333 [17]

Answer:

9.52% ( to 2 dec. places )

Step-by-step explanation:

Calculate the percentage increase using

percent increase = \frac{increase}{original} × 100%

increase = 46 - 42 = 4, hence

percent increase = \frac{4}{42} × 100% ≠ 9.52%


7 0
3 years ago
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