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Alenkinab [10]
4 years ago
12

Which answer is the solution set to the inequality |x|<9? A. X<-9 or x>9 B. X>-9 and x<9 C. X>-9 or x<9 D.

X<9 and x<9
Mathematics
2 answers:
sp2606 [1]4 years ago
8 0

Answer: B. x > -9 and x < 9

Step-by-step explanation:

Since, Here,

|x| < 9

⇒ x < 9 \text{ and }- x < 9 (Because, |x| =\pm x  )

⇒ x < 9 \text{ and } -(-x)> -9   (Because, a < b ⇒ -a > -b )

⇒ x < 9 \text{ and } x > - 9

⇒ -9 < x < 9

Thus, Option B is correct.

Artist 52 [7]4 years ago
5 0

Answer:

x > -9 and x < 9

Step-by-step explanation:

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50 $6 TICKETS WERE SOLD
25 $4 TICKETS WERE SOLD

hope this helped :)
4 0
3 years ago
Which division problem is represented with this model?
sp2606 [1]
D 1/6 % 2 is the correct answer
6 0
3 years ago
Read 2 more answers
Which equation represents a linear function?
quester [9]

Answer:

Step-by-step explanation:

y = 9 - X   is a linear function; x is to the first power.

y = x2 + 1   does NOT represent a linear function; it's a quadratic function.

o            

y=x² + 5    does NOT represent a linear function; it's a quadratic function.

D)

y = [xl - 9  does NOT represent a linear function; it's an absolute value function.  This function has two halves, each of which is a linear function.

But the best answer here is that y = 9 - X   is a linear function; x is to the first power.

3 0
3 years ago
8. Solve x/10 = –7. A. x = –0.7 B. x= –17 C. x = –70 D. x = 3
ANEK [815]
For this problem, I believe you would just have to plug in for x.

For example, -17 divided by 10 and so on.

The answer should be C, -70. -70 divided by 10 equals -7. 
4 0
3 years ago
Factor 3x^2y^2 − 2xy^2 − 8y^2. Show your work.
docker41 [41]
<span>3x^2y^2 − 2xy^2 − 8y^2 =
y^2 (3x^2 - 2x - 8) =

factoring with leading coefficient:

for ax2+bx+c find two numbers n,m, that m*n = a*c and m+n = b
</span><span><span>
3x^2 - 2x - 8
a=3, b=-2, c=-8
</span>a*c = 3*(-8) = -24
-24=(-6)*4 and -6+4=-2, so m=-6 and n=4

replace bx with mx + nx and factor by grouping
</span><span>
3x^2 - 2x - 8 = </span>3x^2 -6x + 4x -8 = 3x(x-2) + 4(x-2) = (3x+4)(x-2)

answer:
<span>3x^2y^2 − 2xy^2 − 8y^2 = y^2(3x+4)(x-2)</span>

7 0
4 years ago
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