4 years ago

(-3x^2+x^4+x)+(2x^4-7+4x)

Mathematics

1 answer:

iragen [17]4 years ago

6 0

1. Remove parentheses

-3x^2 + x^4 + x + 2x^4 - 7 + 4x

2. Collect like terms

-3x^2 + (x^4 + 2x^4) + (x + 4x) - 7

3. Simplify

-3x^2 + 3x^4 + 5x - 7

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GenaCL600 [577]

Answer:

m∠ MNL = 78º

Step-by-step explanation:

Arcs meassures

mML = (11x - 5)º

mJK = (4x + 26)°

Angle meassure

m∠MNL = (10 x – 12)º

______________________

angle measure = average of arcs

m∠MNL = (mML+ mJK)/2

Replacing

(10x – 12)º = ((11x - 5)º + (4x + 26)° )/ 2

10x -12 = (15x + 21 )/2

10x - 7.5x = 10.5 + 12

2.5x = 22.5

x= 9

m∠MNL = (10 x – 12)º

= 90 - 12

= 78º

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(15, -8) :)
From C to midpoint you do (+10, -7), so you have to do that again to get to D

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