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Leni [432]
3 years ago
5

Describe the error in the work shown below.

Mathematics
1 answer:
Katena32 [7]3 years ago
5 0

Answer:

the bottom equation should be 18+30=3(6+10)

Step-by-step explanation:

6(3+10) = 18+60 which equals 78

78 does not equal 18

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Combine like terms to simplify the expression. 2x+4y-7x+10y+8
Dvinal [7]
5x+14y+8 is the simplified answer
4 0
3 years ago
Find the equation of the line through point (-7,2) and parallel to y=2/5x-1/2
Vaselesa [24]

Answer:

y = 2/5x + 24/5

*View graph to see the lines*

Step-by-step explanation:

y = 2/5x - 1/2

Parrel lines have the same slope

y = mx + b

y = 2/5x + b

2 = 2/5(-7) + b

2 = -14/5 +b

5(2 = -14/5 +b)

10 = -14 + 5b

+14   +14

24 = 5b

/5    /5

24/5 = b

y = 2/5x + 24/5

Hope this helps!

6 0
2 years ago
Read 2 more answers
Please hurry!!!! 20 pts
Ivahew [28]

The slope for is JK 1/3 , the slope of LK is -2 , the slope of ML is 2/5 , and the slope of MJ is 3/2 . Quadrilateral JKLM is not a parallelogram because neither pair of opposite sides is parallel

Further explanation:

Given vertices are:

J(−4, 1) , K(2, 3) , L(5, -3) , and M(0, −5) .

We have to find the slopes before concluding any result

The formula for slope is:

m=\frac{y_2-y_1}{x_2-x_1}

So:

<u>Slope of JK:</u>

m_1=\frac{3-1}{2-(-4)}\\=\frac{2}{2+4}\\=\frac{2}{6}\\=\frac{1}{3}

<u>Slope of LK:</u>

m_2=\frac{-3-3}{5-2}\\=\frac{-6}{3}\\=-2

<u>Slope of ML:</u>

m_3=\frac{-3-(-5)}{5-0}\\=\frac{-3+5}{5}\\=\frac{2}{5}

<u>Slope of MJ:</u>

m_4=\frac{1-(-5)}{-4-0}\\=\frac{1+5}{-4}\\=\frac{6}{-4}\\=-\frac{3}{2}

As the slopes of all sides are different, the given quadrilateral is not a parallelogram because in order for the quadrilateral to be a parallelogram the opposite sides have to be parallel i.e. have equal slopes and there are no sides with equal slopes.

Keywords: Parallelogram, Quadrilateral

Learn more about quadrilateral at;

  • brainly.com/question/5191807
  • brainly.com/question/5312408

#LearnwithBrainly

6 0
3 years ago
HELP ASAP Which expression is equivalent to 1/8x−1/2?
Sever21 [200]

The 3rd option is correct

8 0
3 years ago
Read 2 more answers
Darnel's retirement party cost $33, plus an additional $1 for each guest he invites. What is the maximum number of guests there
Karolina [17]

Answer: the maximum number of guests that he can invite would be 9

Step-by-step explanation:

Darnel's retirement party cost $33, plus an additional $1 for each guest he invites. Assuming Darnel wants to invite x guests to his retirement party, the total amount of money that Darnel would spend is

33 + x

if darnel can afford to spend a total of $42 on his retirement party, then

42 = 33 + x

x = 42 - 33 = 9

3 0
3 years ago
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