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3 years ago

9

What is the answer to number 18?

2 answers:

Rashid [163]3 years ago

8 0

The answer to your problem is C. You start out at zero. The red line goes from 0 to 3, hinting that the first part of your expression is a positive three. The blue arrow points towards the -4. The difference between 3 and -4 is 7, and since the line goes backwards, that means that the 7 in your expression is actually a negative. This provides you with answer C: 3-7.

Serga [27]3 years ago

3 0

I bealive it is b. ( I had the exact same 7 th grade homework page ad u today;)

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Which equation is correct

BARSIC [14]

The last one, v = -2,000y + 20,000

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3 years ago

Read 2 more answers

HELP!! Given f(x)=5x squared and g(x) = x squared + 2x squared - 5x, what is F (x) * g(x)?

TEA [102]

X^2+2x^2-5x

((x^2)+2x^2)-5x

Pull the factors out

3x^2-5x=x(3x-5)

x(3x-5)

x(3x-5)*5x^2

5x(3x-5)*x^2

Final

5x^3*(3x-5)

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3 years ago

Help and explain explain !!!!!!!!!!

tigry1 [53]

Answer:

$x=-1\text{ or }x=11$

Step-by-step explanation:

For $a=|b|$ , we have two cases:

$\begin{cases}a=b,\\a=-b\end{cases}$

Therefore, for $18=|15-3x|$ , we have the following cases:

$\begin{cases}18=15-3x,\\18=-(15-3x)\end{cases}$

Solving, we have:

$\begin{cases}18=15-3x, -3x=3, x=\boxed{-1},\\18=-(15-3x), 18=-15+3x, 33=3x, x=\boxed{11}\end{cases}$ .

Therefore,

$\implies \boxed{x=-1\text{ or }x=11}$

3 0

2 years ago

2, 10 after a dilation by a scale factor of 1/2 centered at the<br> origin?

anzhelika [568]

Answer:

(1, 5)

Step-by-step explanation:

When the center is the origin, the dilation factor multiplies each coordinate:

(2, 10) ⇒ (1/2)(2, 10) = (1, 5)

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2 years ago

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liubo4ka [24]

Answer:

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Step-by-step explanation:

T = 10+2v

2v = T-10

v = (T-10)/2 = T/2-5

4 0

3 years ago