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adelina 88 [10]
2 years ago
12

What is the value of x ?

Mathematics
1 answer:
Ivan2 years ago
8 0

Answer:

x = 3

Step-by-step explanation:

Given two secants drawn from an external point to the circle, then

The product of the external part and the whole of one secant is equal to the product of the external part and the whole of the other secant, that is

x(x + 21) = (x + 1)(x + 1 + 14)

x² + 21x = (x + 1)(x + 15) ← expand using FOIL

x² + 21x = x² + 16x + 15 ( subtract x² + 16x from both sides )

5x = 15 ( divide both sides by 5 )

x = 3

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2 years ago
What is m∠S? Enter your answer in the box. ° An isosceles triangle with vertices labeled R, S, and T. Side R T is the base. Side
yulyashka [42]

Answer:

m<S = 45°

Step-by-step explanation:

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3 years ago
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6 0
2 years ago
Y = 60x + 20<br> y = 65x
dalvyx [7]

Answer:

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Step-by-step explanation:

60x + 20 = 65x

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8 0
2 years ago
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