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3 years ago

10

How do you factor x² + 7x + 12

1 answer:

wel3 years ago

5 0

If you mean: x squared -7x +12 then it is (x-3)(x-4) when factored .

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Point Eis on line segment DF. Given DE = 8 and EF= 2, determine the length<br> DF.

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Step-by-step explanation:

if that's what you mean

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3 years ago

The table lists students in an international summer school and the countries they come from.

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Answer: No

Step-by-step explanation:

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3 years ago

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Determine if events A and B are mutually exclusive.

gladu [14]

Answer:

A) Not mutually exclusive

Step-by-step explanation:

Given

$P(A) = \frac{1}{4}$

$P(B) = \frac{3}{5}$

$P(A\ or\ B) = \frac{7}{10}$

Required

Determine if they are mutually exclusive or not

Mutually exclusive are defined by:

$P(A\ or\ B) = P(A) + P(B)$

So, we have:

$P(A\ or\ B) = \frac{1}{4} + \frac{3}{5}$

Take LCM

$P(A\ or\ B) = \frac{5+12}{20}$

$P(A\ or\ B) = \frac{17}{20}$

By comparing:

$P(A\ or\ B) = \frac{17}{20}$ ---- Calculated

$P(A\ or\ B) = \frac{7}{10}$ ---- Given

We can conclude that A and B are not mutually exclusive because:

$\frac{17}{20} \ne \frac{7}{10}$

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3 years ago

Determined to find the slope<br>(1,7K) and (-3,5k)

Nadusha1986 [10]

9514 1404 393

Answer:

slope = k/2

Step-by-step explanation:

The slope formula is useful for finding slope.

m = (y2 -y1)/(x2 -x1)

m = (5k -7k)/(-3 -1)

m = -2k/-4

m = k/2

The slope is k/2.

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3 years ago

Rufus earned $230 delivering newspapers during the summer. He bought 5 movie passes worth $15 each from his newspaper money. How

wel

Answer:

155

Step-by-step explanation:

15 x 5 = 75

230 - 75 = 155

Hope this helps!

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3 years ago

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