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borishaifa [10]
3 years ago
6

Find Y. Do not round answer.

Mathematics
2 answers:
mixas84 [53]3 years ago
8 0

Answer:

y = 11.2 in

Step-by-step explanation:

Given a tangent and a secant from an external point to a circle, then

The square of the measure of the tangent is equal to the product of the external part and the entire secant, that is

5(5 + y) = 9²

25 + 5y = 81 ( subtract 25 from both sides )

5y = 56 ( divide both sides by 5 )

y = 11.2

Hope it helps! ^w^

galben [10]3 years ago
4 0

Answer:

Does the answer help you?

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Solve using substitution.
vazorg [7]

Answer:

(3,6)

Step-by-step explanation:

2x-3y = -12

x+y=9. Solve for either y or x

-x. -x

y = -x + 9. Substitute this for the y

2x-3(-x+9)= -12

2x +3x-27 = -12. Add like terms

5x -27 = -12

+27. +27. Inverse operations

5x = 15

÷5. ÷5

x = 3

x + y = 9

3 + y = 9. Substitute 3 for x

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y = 6

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4 years ago
What is the area of the regular pentagon below
nordsb [41]

Answer:

A

Step-by-step explanation:

By definition, all sides of a regular polygon are equal in length. If you know the length of one of the sides, the area is given by the formula:

A=\dfrac{s^2\cdot n}{4\tan \frac{180^{\circ}}{n}},

where s is the side length, n is the number of sides.

In your case, s=20 ft, n=5,so

A=\dfrac{20^2\cdot 5}{4\tan \frac{180^{\circ}}{5}}=\dfrac{400\cdot 5}{4\tan 36^{\circ}}=\dfrac{500}{0.73}\approx 688.2\ ft^2

8 0
3 years ago
Read 2 more answers
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raketka [301]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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5. A boy owns 2 pairs of pants, 8 shirts, 6 ties, and 7 jackets. How many different outfits can he wear to school if he must wea
sergeinik [125]

Answer:

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Step-by-step explanation:

6 0
3 years ago
Rosa bought 1 pound of cashews and 2 pounds of peanuts for $10. At the same store, Sabrina bought 2 pounds of cashews and 1 poun
Valentin [98]

Answer:

The solutions are x=4, y=3. Cashews are $4 per pound and Peanuts are $3 per pound.

Step-by-step explanation:

let x = cashews

let y = peanuts

x + 2y = 10 - rosa's purchase

2x + y = 11 - sabrina's purchase

subtract 2x to isolate 'y'

y = 11 - 2x

x + 2(11 - 2x) = 10

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Plug this into the original equations to find "y"

2(4) + y = 11

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3 years ago
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