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Oksanka [162]
3 years ago
15

Please help Which one is correct?

Mathematics
1 answer:
zlopas [31]3 years ago
8 0

Answer:

The first one

Step-by-step explanation:

3/5 and 9/25

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Select one:<br> a. 4<br> b.5<br> c. 6<br> d. 7
tino4ka555 [31]

Answer:

C

Step-by-step explanation:

Given 2 secants intersect a circle from a point outside the circle, then

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x(x + 10 + x) = 6(6 + 10 + x)

x(2x + 10) = 6(16 + x) ← distribute parenthesis on both sides

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2x² + 4x - 96 = 0 ← in standard form

Divide through by 2

x² + 2x - 48 = 0 ← factor the left side

(x + 8)(x - 6) = 0

Equate each factor to zero and solve for x

x + 8 = 0 ⇒ x = - 8

x - 6 = 0 ⇒ x = 6

However x > 0 ⇒ x = 6 → C

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3 years ago
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2 years ago
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At Clement's Jr. High School, a student needs an 86 average to earn a B. Sue's average on
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Answer:

Sue must score 94 on the final test to earn a B.

Step-by-step explanation:

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We have the following equation:

86 = (4 × 84 + X)/5

<=> X = 5 × 86 - 4 × 84

=> X =  94

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