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alina1380 [7]
3 years ago
15

If I have -2x and I have to divide it by itself do I divide by 2 or -2?

Mathematics
2 answers:
alekssr [168]3 years ago
3 0

\text{If I understand your question correctly, you would divide by -2}\\\\\text{The variable, x, can't be a negative, or else it wouldn't be considered}\\\text{as a solution yet}\\\\\text{Therefore you would need to divide by -2 to get x by itself, and turn}\\\text{it into a positive. "x" has to be positive}\\\\\text{For example:}\\\\-2x=2\\\\\text{You have to divide by -2 to get your solution}\\\\\text{If you divide by 2:}\\\\-2x=2\\\\-x=1\\\\\text{It would not be a solution}\\\\

\boxed{\text{Divide by -2}}

Bess [88]3 years ago
3 0

Answer: -2 or 2

Step-by-step explanation:

If the question ask absolute value

is 2

if not -2

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Is this a function?
Brums [2.3K]

Answer:

Yes

Step-by-step explanation:

It is a function since each x-coordinate is used only once. No two x-coordinates are equal. That makes it a function.

Answer: Yes

6 0
2 years ago
The height of tower A is 852 feet more than tower B. The two towers have a combined height of 1,824 feet. What are the heights o
RUDIKE [14]
\bf \textit{A is 852 feet more than tower B}\implies a=b+852
\\\\\\
\textit{The two towers have a combined height of 1,824}\implies a+b=1824\\\\
-------------------------------\\\\
\begin{cases}
\boxed{a}=b+852\\
a+b=1824\\
----------\\
\boxed{b+852}=1824
\end{cases}
\\\\\\
b=1824-852\implies b=972

how tall is A? well, a = b + 852.
8 0
3 years ago
Read 2 more answers
The length of a rectangle is four times its width. If the perimeter of the rectangle is 50 yd, find its area
SpyIntel [72]

Answer:

100yd²

Step-by-step explanation:

length=4x

width=x

perimeter=2(l+w)

50=2(4x+x)

50=2(5x)=10x

50=10x

x=5yd

width=5yd

length=20yd

area=length×width

=20×5

=100yd²

6 0
3 years ago
Read 2 more answers
(8) Evaluate the following without using a calculator:
Umnica [9.8K]

Answer:

(C) 5/2

Step-by-step explanation:

=2(1/2)-3(1/2)+3(1)

=1-3/2+3

=(2-3+6)/2    ( taking LCM)

=5/2

3 0
3 years ago
Given f(x), find g(x) and h(x) such that f(x)=g(h(x)) and neither g(x) nor h(x) is solely x. f(x)=−3x+4⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯√3+5
iVinArrow [24]

Answer:

h(x)=-2x+4

g(x)=\sqrt[3]{x}-5

Step-by-step explanation:

Consider the given function is

f(x)=\sqrt[3]{-2x+4}-5

It is given that f(x)=g(h(x)) and neither g(x) nor h(x) is solely x.

f(x)=\sqrt[3]{(-2x+4)}-5

Let h(x)=-2x+4, then we get

f(x)=g(h(x))=\sqrt[3]{h(x)}-5

Substitute h(x)=x in the above function.

g(x)=\sqrt[3]{x}-5

Therefore, the required functions are h(x)=-2x+4 and g(x)=\sqrt[3]{x}-5.

Check the solutions.

g(h(x))=g(-2x+4)             [\because h(x)=-2x+4]

g(h(x))=\sqrt[3]{-2x+4}-5            [\because g(x)=\sqrt[3]{x}-5]

g(h(x))=f(x)

Therefore, our solution is correct.

7 0
3 years ago
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