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Studentka2010 [4]
3 years ago
11

How many solutions does the equation have? -9 = |d+4|

Mathematics
1 answer:
bezimeni [28]3 years ago
7 0

Answer:

2 solutions

Step-by-step explanation:

Set up a system of equations. The absolute value produces two equations because one answer will be negative and the other positive.

d + 4 = -9

d + 4 = 9

So...

d = -13

d = 5

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Factor completely 2x3 + x2 - 18x - 9
melisa1 [442]
Factor the following:
2 x^3 + x^2 - 18 x - 9

Factor terms by grouping. 2 x^3 + x^2 - 18 x - 9 = (2 x^3 + x^2) + (-18 x - 9) = x^2 (2 x + 1) - 9 (2 x + 1):
x^2 (2 x + 1) - 9 (2 x + 1)

Factor 2 x + 1 from x^2 (2 x + 1) - 9 (2 x + 1):
(2 x + 1) (x^2 - 9)

x^2 - 9 = x^2 - 3^2:
(2 x + 1) (x^2 - 3^2)

Factor the difference of two squares. x^2 - 3^2 = (x - 3) (x + 3):

Answer:  (x - 3) (x + 3) (2 x + 1) thus the Answer is C.
7 0
3 years ago
Read 2 more answers
Y= 4x + 2<br> where the domain is the set of all of<br> the positive even numbers<br> less than 10.
inysia [295]

The range of the function y = 4x + 2 where the  domain is the set of all of

the positive even numbers  less than 10 is {10, 18, 26, 34}

The given equation is:

y  =  4x  +  2

The domain is the set of all of  the positive even numbers  less than 10.

That is, x = {2, 4, 6 ,8}

To get the range, find the values of y for x = 2, 4, 6, and 8

For x = 2:

y = 4(2)  +  2

y  =  8  +  2

y   =  10

For x = 4:

y = 4(4)  +  2

y  =  16  +  2

y   =  18

For x = 6:

y = 4(6)  +  2

y  =  24  +  2

y   =  26

For x = 8:

y = 4(8)  +  2

y  =  32  +  2

y   =  34

Therefore, the range = {10, 18, 26, 34}

Learn more here: brainly.com/question/18479953

5 0
2 years ago
What is the factored form of x^2 -4x-12
denis-greek [22]

How about this?

(x - 6) x (x + 2)


8 0
3 years ago
Square root of 18 as a mixed number
Vika [28.1K]
4 1/5 should be your answer 
6 0
3 years ago
Math binder is 3/4 inches thick how many binders will fit on a shelf 3 feet wide
Zigmanuir [339]

Answer:

48 binders

Step-by-step explanation:

36 inches

3/4 inches

flip around the fractio

36 x 4/3 = 48

OR 36 x 1.25=48

4 0
3 years ago
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