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34kurt
2 years ago
14

Can some one help me solve these 3 questions?

Mathematics
1 answer:
worty [1.4K]2 years ago
5 0
7. A
8. Is the 1st picture
9.is the second picture

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If points (7,a), (-5,2) and (3,6) are collinear, find a.
uysha [10]

Answer:

The value of a is 8

Step-by-step explanation:

If the three lines are collinear, they all lie on the same line

So let us have the equation of a line that passes through the known ends

the slope will be;

m = (6-2)/(3 + 5) = 4/8 = 1/2

The general form is;

y = mx + b

so, we have

y = 1/2x + b

To get b, we use any of the two known points

6 = 3/2 + b

b = 6-3/2

b = (12-3)/2 = 9/2

So the equation of the line is;

y = 1/2x + 9/2

Multiply through by 2

2y = x + 9

So for the point , to get a , we have that

2(a) = 7 + 9

2a = 16

a = 16/2

a = 8

7 0
2 years ago
Which type of car had the largest range in monthly sales? Explain how you came up with your answer.
sergey [27]

Answer:

Can you please attach a picture of the question so I can help?

Step-by-step explanation:

4 0
3 years ago
Complete the following statement.
Viktor [21]

Answer: dividend

Step-by-step explanation:……..

6 0
2 years ago
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Please help me with this
Zolol [24]

Answer:

MN=9.1 cm

LM= 9.9 cm

Step-by-step explanation:

3 0
2 years ago
Joshua's math textbook weighs 43.21 ounces. His social studies book weighs 38.99 ounces. What is the difference in weight betwee
Nuetrik [128]
43.21-38.99=4.22

the difference is 4.22 ounces in weight.

































4 0
2 years ago
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