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Klio2033 [76]
3 years ago
8

A line has a slope of 2 and contains the points 1,3 and 2,y the value of y is

Mathematics
1 answer:
goldfiish [28.3K]3 years ago
7 0

Answer:

The value of y is 5

Step-by-step explanation:

we know that

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have

A(1,3)\ B(2,y)

Substitute the values

2=\frac{y-3}{2-1}

2=y-3

y=2+3=5

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Using the approximation 3.14 for \pi what is the radius of a circle with circumference 75.4m
Charra [1.4K]

Answer:

The radius of the circle is 12.006 m.

Step-by-step explanation:

Let us assume the radius of the circle = r

Circumference  = 75.4 m

Now, CIRCUMFERENCE OF A CIRCLE = 2 π r

⇒ 75 .4 m = 2 π r

Now, putting  π = 3.14, we get:

75 .4 m = 2 (3.14)  r

⇒ 75.4 = 6. 28 r

or, r = 75.4/6.28 =  12.006

or, r  = 12.006 m

Hence, the radius of the circle with circumference 75.4 m is 12.006 m.

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Emily wants to buy a car. She pays a deposit equal to 20% of the cost of the car. She will pay the balance in 8 equal payments o
olga55 [171]

Answer: the cost of the car is $54600

Step-by-step explanation:

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0.8x/8 = 5460

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Dividing the left hand side and the right hand side of the equation by 0.1, it becomes

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Step-by-step explanation:

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