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3 years ago

Write a slope intercept equation for a line that passes through (-3,5) and (2,-5)

Mathematics

1 answer:

anyanavicka [17]3 years ago

7 0

Answer:

Step-by-step explanation:

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

Slope m = (y2 - y1)/(x2 - x1)

y2 = -5, y1 = 5, x2 = 2, x1 = -3

m = (-5 - 5)/(2 + 3)

m = -10/5

m = -2

Slope = -2

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On their way up the hill, Jack and Jill were stopped by their parents. It seems the two of them were trying to skip out on some

Katarina [22]

Answer:

77.14 minutes.

Step-by-step explanation:

Jack's time = 3 hours

Jill's time = 2.25 hours = 2 1/4 = 9/4 hours

Combined time = x

Rates :

Jack = 1/3 ; jill = 1 / 2.25 = 1 / 9/4 = 4 /9

Combined rate = 1/x

Setting up the equation :

1/3 + 4/9 = 1/x

Lcm of 3 and 9 = 9

(3 + 4) / 9 = 1/x

7/9 = 1/x

Cross multiply :

7x = 9

x = 9/7 hours

x = (9/7)* 60

x = 77.14 minutes

Combined time = 77.14 minutes.

3 0

3 years ago

A ramp is being constructed with wood and then filled with concrete. How many cubic get of concrete will be needed to complete t

Molodets [167]

Answer:

The cubic volume of concrete needed to complete the ramp is 360 ft³

Step-by-step explanation:

We note that the ramp shape is that of a right ngled triangular cube with dimensions

Height = 10 ft

Base = 12 ft

Width = 6 ft

The amount of concrete to fill the ramp is approximately the volume of the ramp.

Volume of ramp = volume of triangular prism = 0.5×Base ×Height × Width

Volume of ramp = 0.5×12×10×6 = 360 ft³.

The cubic volume of concrete needed to complete the ramp = 360 ft³.

8 0

3 years ago

One egg carton holds 12 eggs how many cartons are you able to fill with 60 eggs

PtichkaEL [24]

The answer should be 5 egg cartons

8 0

3 years ago

Read 2 more answers

22 divided by 4/5 <br> please help me every time i do this it isn’t right

NNADVOKAT [17]

Answer:

what form is the question?

5 0

3 years ago

Solve logarithm Equation: log2 (12b - 21) - log2 (b^2 - 3)=2

Vikki [24]

Hn, well you should use the rule to answer this.. $log_a(n)-log_a(m)=log_a (\frac{n}{m} )$
Sorry if this doesn't seem to help, but here is the explanation:
$log_2 (\frac{12b-21}{b^2-3} )=2$
$\frac{12b-21}{b^2-3} =4$
$12b-21=4(b^4-3)$
$0=4b^2-12b-12+21$
$0=4b^2-12b+9
$
$0=4b^2-6b-6b+9$
$0=2b(2b-3)-3(2b-3)$
$0=(2b-3)(2b-3)$
$b= \frac{3}{2}$
Hn, so from this information we can determine that this solution does not work. And so forth your solution set shall indeed be: {x= 0}

I wish you good luck on your homework and hopefully I was somewhat beneficial to your needs.

Best regards~ Sans

7 0

3 years ago