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jekas [21]
2 years ago
6

4) Shown below is a series of steps to solve the equation 4x + 2(x - 4) = 28.

Mathematics
1 answer:
love history [14]2 years ago
5 0
It is a! I did this assignment and got it right that’s how I know!
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HELP ASAP!!!! 30 POINTS
Vedmedyk [2.9K]

Answer:

20.8 ft²

Step-by-step explanation:

area = (ab sin C)/2

area = (6 ft × 8 ft × sin 60°)/2

area = 20.8 ft²

6 0
2 years ago
What is the slope of the line represented by the equation y = (1/2)x +(1/4)?
SVETLANKA909090 [29]
The slope of the line is (1/2).

The original equation is y=mx+b
m = slope
x = variable
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4 0
3 years ago
Please help!!!
Dominik [7]

Answer:

40

Step-by-step explanation:

8+1=9

16+2=18

24+3=27

32+4=36

<u>4</u><u>0</u><u>+</u> 5=45

7 0
3 years ago
Which expression is a cubic polynomial?
Ilia_Sergeevich [38]
The answer is B) x^3-1 because it's the only one with the 3rd degree
7 0
3 years ago
If x+1 and x-1 are the factors of the polynomial ax^3 + x^2 - 2x +b,find the values of a and b
Nadusha1986 [10]

The polynomial remainder theorem says that dividing a polynomial p(x) by x-c leaves a remainder of p(c)=0 if x-c is a factor of p(x). In this case, check c=-1 and c=1.

a(-1)^3+(-1)^2-2(-1)+b=-a+b+3=0

a(1)^3+(1)^2-2(1)+b=a+b-1=0

From the first equation,

-a+b+3=0\implies a=b+3

and substituting into the second gives

(b+3)+b-1=0\implies2b+2=0\implies b=-1\implies a=2

3 0
3 years ago
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