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Veseljchak [2.6K]
4 years ago
8

Find the sum

Mathematics
1 answer:
mylen [45]4 years ago
7 0

Answer:

D)2x^3+7x^2-6x-11

Step-by-step explanation:

(2x^3-x-9)+(7x^2-5x-2) and simplify

into 2x^3+7x^2-6x-11 (steps shown in attachment)

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2x+2x-26=114 blank -26=114
Nady [450]
The answer is 35

X= 35
3 0
3 years ago
What percent of 12 is 48<br> A. 0.25%<br> B. 4% <br> C. 25%<br> D. 40% <br> E. 400%
Step2247 [10]

Answer: the answer is 25 percent

Step-by-step explanation: 25 percent times 48 is 12

5 0
3 years ago
Area of the triangle defined by the coordinates (-3, -4), (-7, 0), and (-3, 4).
qwelly [4]
Here: (Aₓ, Ay) = (-3,-4), (Bₓ, By) = (-7,0), (Cₓ, Cy) = (-3, 4)
Now, Formula of area of triangle is:

area = [Aₓ(By - Cy) + Bₓ(Cy - Ay) + Cₓ(Ay - By)] / 2

Substitute the values in to the expression, 
area = [-3(0-4) - 7(-4-(-4)) - 3(-4-0)] / 2
area = [-3(-4) -7(0) -3(-4)] / 2
area = [12-0+12] / 2
area = 24 / 2
area = 12

Final answer would be 12 units.

Hope this helps!
5 0
4 years ago
SEP Use Mathematics: The Pacific Plate moves to the northwest at an average rate of 10 cm per year. Hawaii is in the middle of t
hammer [34]

Answer:ea sorts

Step-by-step explanation:p

5 0
3 years ago
PLEASEE help me please I’m so confused :( marking the first best answer as brainliest
mixas84 [53]

I wrote it roughly.

Hope it helps.

I am sorry.

7 0
3 years ago
Read 2 more answers
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