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3 years ago

4x + 11y = 7 4x + 3y = -1

Mathematics

1 answer:

Serhud [2]3 years ago

5 0

Answer:

x= - 1

y= 1

Step-by-step explanation:

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Does anyone know this?

barxatty [35]

Answer:

$\Huge \boxed{-2}$

Step-by-step explanation:

$f(x)=-2x^2-2x+10$

For f(2), the input of the function is 2.

Let x = 2.

$f(2)=-2(2)^2-2(2)+10$

Evaluate.

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$f(2)=-8-4+10$

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4 years ago

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7. Which of the following is an example of a proper fraction?

Ymorist [56]

Answer:

C.4/17

Step-by-step explanation:

A proper fraction has a numerator that is less than the denominator

A. 11/10 11>10 improper

B. 15/2 15>2 improper

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3 years ago

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In a shipment of 71 vials, only 13 do not have hairline cracks. If you randomly select 2 vials from the shipment, what is the pr

yanalaym [24]

Answer:

0.0313

Step-by-step explanation:

Given that in the shipment of 71 vials, only 13 do not have hairline cracks

Probability of not having a hairline cracks = $\frac{13}{71}$

If you randomly select 2 vials from the shipment

(Probability of not having a hairline cracks)' = $\frac{13-1}{71-1}$ = $\frac{12}{70}$

what is the probability that none of the 2 vials have hairline cracks.

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= 0.183 × 0.171

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3 years ago