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3 years ago

BRAINLIEST ANSWER

Mathematics

2 answers:

Alex3 years ago

4 0

Question asked: if a number has an absolute value equal to 9,that number could be ____?

My answer: it would be C. -9 or 9

melamori03 [73]3 years ago

3 0

The answer is C. -9 or 9.

The absolute value of a number is just that number's positive form, so we know the answer won't be D.

A and B are both correct, but it's not just those one numbers. The only answer correct is C, because it shows all correct answers, not some of the right answers.

Half doing work is the same as not doing it.

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Mr. Shand had $59.75 in his bank account, but then he bought some new ties and some pancakes. After the purchase, he was in debt

joja [24]

Answer:

Ok so first he bought the road and pancakes with means he speant 134.85 dollars which mean he out himself in the negatives after he bought the his items

3 0

3 years ago

Please help with the question above

Georgia [21]

C would be the answer, which is 9x+9y

3 0

3 years ago

f(x) = −16x2 + 24x + 16 Part A: What are the x-intercepts of the graph of f(x)? Show your work. (2 points) Part B: Is the vertex

DerKrebs [107]

Answer:

see below

Step-by-step explanation:

f(x) = −16x^2 + 24x + 16

Set equal to zero to find the x intercepts

0 = −16x^2 + 24x + 16

Factor out -8

0 = -8(2x^2 -3x-2)

Factor

0 = -8(2x +1) (x-2)

Using the zero product property

2x+1 =0 x-2 =0

x = -1/2 x=2

The x intercepts are -1/2 ,2

Since the coefficient of x^2 is negative the graph will open down and the vertex will be a maximum

The x value of the maximum is 1/2 way between the zeros

(-1/2+2) /2 = 1.5/2 =.75

To find the y value substitute into the function

f(.75) = -8(2x +1) (x-2)

=-8(2*.75+1) (.75-2)

= -8(2.5)(-1.25)

=25

The vertex is at (.75, 25)

We have the zeros, and the vertex. We know the graph is symmetrical about the vertex

3 0

3 years ago

Item 11

Elena-2011 [213]

Answer:

54+2x=5x-3(2+6x)

54+2x=5x-6-18x

2x-5x+18x=-6-54

15x=-60

x=-60÷15

x=-4

3 0

4 years ago

Read 2 more answers

What is the solution to this equation? x-8=15 A)x=13 B)x=17 C)x=7 D) x=23

Blababa [14]

Hi there! :)

Answer:

x=23

*The answer must have a positive sign.*

Step-by-step explanation:

This lesson it's about addition property of equality.

First, you add by 8 from both sides of an equation.

$x-8+8=15+8$

And then, you add by the numbers. Simplify and solve.

$15+8=23$

Final answer: → $x=23$

Hope this helps!

Thanks!

-Charlie

Have a great day!

3 0

3 years ago