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3 years ago

Explain how to find the slope of a line that passes through the points (-3, 1), (1, 9. Find the slope

Mathematics

1 answer:

Nutka1998 [239]3 years ago

4 0

Answer:

Slope=2

Step-by-step explanation:

m= 9-1/1-(-3)

m=8/4=2/1=2

Use slope intercept form=y₂-y₁/x₂-x₁

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A car is traveling at a rate of 50 miles per hour. what is the car's rate in kilometers per hour? how many kilometers will the c

tangare [24]

The car's rate in kilometers would be approximately 80 kph. The car would travel about 240 kilometers in three hours. This was solved assuming that 1 mile is equal to 1.6 kilometers.

6 0

3 years ago

You have a $3175 student loan. Suppose you pay the loan off in two and a half years (30 months). Estimate your monthly payment b

finlep [7]

Answer:

$106

Step-by-step explanation:

The formula given for Monthly payment of a loan =

P × [ r (1 + r)/(1 + r)^n - 1

Where

r = interest rate

n = number of monthly payments

P = Present value of the loan

From the question,

r = interest rate, we were told to ignore hence, r = 0

P = $3,175

n = 30

Hence,

Amount to be paid monthly = P/n

= $3175/30

= $105.83

Approximately to the nearest dollars

= $106

6 0

3 years ago

Type the correct answer in each box.

Mariulka [41]

Answer:

$(x-5)^2+(y+4)^2=100$

Step-by-step explanation:

step 1

Find the radius of the circle

we know that

The distance between the center and any point that lie on the circle is equal to the radius

we have the points

(5,-4) and (-3,2)

the formula to calculate the distance between two points is equal to

$d=\sqrt{(y2-y1)^{2}+(x2-x1)^{2}}$

substitute the values

$r=\sqrt{(2+4)^{2}+(-3-5)^{2}}$

$r=\sqrt{(6)^{2}+(-8)^{2}}$

$r=\sqrt{100}\ units$

$r=10\ units$

step 2

Find the equation of the circle

we know that

The equation of a circle in standard form is equal to

$(x-h)^2+(y-k)^2=r^2$

where

(h,k) is the center

r is the radius

we have

$(h,k)=(5,-4)\\r=10\ units$

substitute

$(x-5)^2+(y+4)^2=10^2$

$(x-5)^2+(y+4)^2=100$

6 0

3 years ago

Jill earns a yearly salary of $40,000 plus

Rudik [331]

Answer:

Jill earned $22,500 more total income for the year.

Step-by-step explanation:

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3 years ago

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Wewaii [24]

Answer:

the distance is 4

Step-by-step explanation:

7 0

2 years ago