3 years ago

Which expression is a factor of x2 +2x - 15 A. (x - 3) B. (x + 3) C. (x + 15) D. (x - 5)

Mathematics

1 answer:

valina [46]3 years ago

3 0

Answer:

A. (x - 3)

Step-by-step explanation:

x^2 +2x - 15

Factor

What 2 numbers multiply to -15 and add to 2

5*-3 = -15

5 -3 =2

(x+5)(x-3)

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Solve the inequality −x/2<4

FinnZ [79.3K]

Isolate the x. First, multiply 2 to both sides

-x/2(2) < 4(2)

-x < 4(2)

-x < 8

Isolate the x. Divide - 1 to both sides (because you are dividing a negative number, flip the sign).

-x/ -1 < 8/-1

x > -8 is your answer

hope this helps

5 0

3 years ago

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QveST [7]

Answer:

The average rate of change is $=-4$

Step-by-step explanation:

The average rate of change from x=a to x=b of f(x) is given by;

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$=\frac{f(2)-f(-2)}{2--2}$

From the table f(-2)=25 and f(2)=9

The average rate of change from x=-2 to x=2 is

$=\frac{9-25}{2--2}$

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3 years ago

If you input 0 into the equation below, what is the resulting y-value?<br> y2+x2+3=4

Kobotan [32]

The answer is the 3 option

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3 years ago

From a group of six people, two individuals are to be selected at random. how many possible selections are there

Murrr4er [49]

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6 0

4 years ago

Use the Law of Cosines to find the missing angle. In triangle FGH, HF = 16 ft, FG = 23 ft, and m∠F = 52°. Find the measure of f.

ivolga24 [154]

F = 18 ft.

The law of cosines states
c² = a² + b² - 2ab cos C

Using our information, we have
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3 years ago