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lys-0071 [83]
3 years ago
13

2. (8x -6) - (-2x +4)

Mathematics
2 answers:
allochka39001 [22]3 years ago
4 0

Answer:

10x-10

Step-by-step explanation:

(8x -6) - (-2x +4)

8x - 6 + 2x - 4

10x-10

exis [7]3 years ago
3 0

Step-by-step explanation

(8x -6) - (-2x +4)

8x-(-2x+4) -6-(-2x+4)

10x-32x-12x+24

-34x+24

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Write an algebraic rule to describe the translation C(5, –4)- ’(–2, 1).
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A negative minus a negative is always a positive ;)
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3 years ago
Punctele O, A, B, C sunt coliniare în această ordine, iar segmentele OA, AB și BC au lungimile exprimate în cm, prin numere natu
julia-pushkina [17]

Răspuns:

a) OC = 18cm

b) MN = 6cm

Explicație pas cu pas:

Găsiți diagrama la întrebarea atașată.

a) Din diagramă se poate observa că OC = OA + AB + AC

OC = 2n + 2n + 2 + 2n + 4

OC = 6n + 6

Următorul este să obțineți valoarea lui n:

OM = OA + AM

Să obținem segmentul AM;

Deoarece M este segmentul mijlociu al AC, atunci;

AM = AC / 2

AM = AB + BC / 2

AM = 2n + 2 + 2n + 4/2

AM = 4n + 6/2

AM = 2n + 3

Din moment ce OM = OA + AM

OM = 2n + 2n + 3

OM = 4n + 3

Dat fiind OM = 11

11 = 4n + 3

4n = 11-3

4n = 8

n = 2

Următorul pas este să calculați OC;

OC = 6n + 6

OC = 6 (2) + 6

OC = 18

Prin urmare, lungimea segmentului OC este de 18 cm

b) Această întrebare ne cere să găsim segmentul de linie MN.

Din diagramă, MN = AM - AN

Deoarece AM = 2n + 3 din întrebarea 1;

AM = 2 (2) +3

AM = 4 + 3

AM = 7

Acum, să obținem AN:

Din diagramă, AN = ON-OA și ON = OB / 2

AN = OB / 2 - OA

AN = (2n + 2n + 2) / 2 - 2n

AN = 4n + 2/2 - 2n

AN = 2n + 1 - 2n

AN = 2n-2n + 1

AN = 1

De la MN = AM - AN

MN = 7 - 1

MN = 6cm

Prin urmare, distanța dintre N, mijlocul segmentului OB și punctul M este de 6cm

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3 years ago
Use this image to classify each pair of lines.
irga5000 [103]

Answer:

Parallel

Step-by-step explanation:

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2 years ago
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erastova [34]
Ok so if -6 is the y intercept you look for -6 on the y axis and use rise over run up one over one until you can't plot anymore and then down one over one and do the same thing did that help you Phil?
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Gwen Mows 1/4 acre 3/4 hour. How many acres will Gwen mow in one hour
Tamiku [17]

Answer:

0.33...acre

Step-by-step explanation:

1/4=0.25

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0.25/0.75=x/1

cross product

0.75*x=0.25*1

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