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zavuch27 [327]
3 years ago
14

Combine like terms. What is a simpler form of the expression? -3(-4y+3)+7y

Mathematics
1 answer:
kupik [55]3 years ago
8 0

Answer:

19y - 9

Step-by-step explanation:

-3(-4y + 3) + 7y =

Distribute the -3.

= 12y - 9 + 7y

Combine like terms: 12y + 7y

= 19y - 9

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prohojiy [21]

Answer: 45 items

Step-by-step explanation:

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3 0
1 year ago
Three houses are mapped on a coordinate grid.
Licemer1 [7]

Step-by-step explanation:

Let us consider the task to find the angle between vectors ES and EJ (the first letters are taken to name the vectors).

\overrightarrow{ES} = (4;4) - (4; -3) = \overrightarrow{(0; 7)}

ES

=(4;4)−(4;−3)=

(0;7)

​

\overrightarrow{EJ} = (-5; -4) - (4; -3) = \overrightarrow{(-9; -1)}

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=(−5;−4)−(4;−3)=

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​

cos \alpha=\frac{\overrightarrow{ES}*\overrightarrow{EJ}}{|\overrightarrow{EJ}|*|\overrightarrow{ES}|}cosα=

∣

EJ

∣∗∣

ES

∣

ES

∗

EJ

​

cos(a) = (0*(-9)+7*(-1)) / (7*9.055) = -0.11043;

a = 96,34°

Solution: 96 degrees.

6 0
3 years ago
Sydney is going to a carnival that has games and rides. Each game costs $1.25 and each ride costs $2.25. Sydney spent $24.25 alt
Ede4ka [16]
She went on 8 rides and 5 games because 2.25*8=18 1.25*5=6.25
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8 0
2 years ago
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Daniel [21]

Answer:

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Step-by-step explanation:

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7 0
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Mumz [18]

Answer:

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Step-by-step explanation:

We need to calculate the slope of each of the given sets of points until we find the set associated with a slope of 3/4:

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5 0
3 years ago
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