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3 years ago

For what values of x is x2-36=5x true?

Mathematics

2 answers:

Inga [223]3 years ago

6 0

Answer:Its B. -4 and 9

Step-by-step explanation:

Paladinen [302]3 years ago

5 0

Answer:

x = - 4, x = 9

Step-by-step explanation:

Given

x² - 36 = 5x ( subtract 5x from both sides )

x² - 5x - 36 = 0 ← in standard form

Consider the factors of the constant term (- 36) which sum to give the coefficient of the x- term (- 5)

The factors are - 9 and + 4, since

- 9 × 4 = - 36 and - 9 + 4 = - 5, thus

(x - 9)(x + 4) = 0

Equate each factor to zero and solve for x

x + 4 = 0 ⇒ x = - 4

x - 9 = 0 ⇒ x = 9

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Step-by-step explanation:

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3 years ago

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4 years ago

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3 years ago

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hjlf

Answer:

a) $s= 9.74$

D. 9.74

b) $Median= 74$

B. 74

Step-by-step explanation:

Part a

We have the following dataset given:

69 74 75 62 70 93 64 69 61 88 67 77 87 90 66 91 77 63 82 82 71 74 76 65 83

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And replacing we got:

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Now we can calculate the sample deviation with the following formula:

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And after replace we got:

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Part b

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3 years ago

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Morgarella [4.7K]

Answer:

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Step-by-step explanation:

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