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stich3 [128]
3 years ago
9

Expand and simplify (x+4)(x+8)

Mathematics
2 answers:
icang [17]3 years ago
6 0
(x+4)(x+8)
=x(x+8)+4(x+8)
=x^2+8x+4x+32
=x^2+12x+32
azamat3 years ago
3 0
4x*8x=32x

i think that's it, but math isn't my strong suit

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The sum of three angles is inside of a triangle is 180 degrees true or false?
lana [24]
The answer would be true
4 0
3 years ago
Evaluate the function<br> f(x)= 7.45x + 33.7 at x= -4.3
slavikrds [6]
First, you have to substitute for x, which would make the problem f(x)=7.45(-4.3)+33.7
Now, you just have to use the PEMDAS method (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction)
f(x)= -32.035+33.7
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6 0
3 years ago
The population of Detroit, Michigan, decreased from 1,027,974 in 1990 to 688,701 in 2013 (Source: U.S. Census Bureau). Find the
AleksandrR [38]

the slope goes by several names

• average rate of change

• rate of change

• deltaY over deltaX

• Δy over Δx

• rise over run

• gradient

• constant of proportionality

however, is the same cat wearing different costumes.

to get the slope of any straight line, we simply need two points off of it, so let's use the ones provided in that

\begin{array}{|cc|ll} \cline{1-2} \stackrel{years}{x}&\stackrel{population}{y}\\ \cline{1-2} 1990&1027974\\ 2013&688701\\ \cline{1-2} \end{array}\hspace{5em} (\stackrel{x_1}{1990}~,~\stackrel{y_1}{1027974})\qquad (\stackrel{x_2}{2013}~,~\stackrel{y_2}{688701}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{688701}-\stackrel{y1}{1027974}}}{\underset{run} {\underset{x_2}{2013}-\underset{x_1}{1990}}} \implies \cfrac{-339273}{23}\implies -14751\qquad \stackrel{rate~of}{change}

let's notice, is negative since the population decreased.

5 0
1 year ago
Lin knows that there are 4 quarts in a gallon. She wants to convert 6 quarts to gallons but cannot decide if she should multiply
zalisa [80]

Answer:

She needs to divide 6 by 4.

Step-by-step explanation:


7 0
3 years ago
Read 2 more answers
If the circumference of a circle measures 12π cm, what is the area of the circle in terms of π?
Xelga [282]

If C=2\pi r then r=6 and A=\pi r^2=\boxed{36\pi}.

Hope this helps.

4 0
3 years ago
Read 2 more answers
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