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3 years ago

7. Find an equation of the line that has slope - 2/3 and which passes through (-1,-4)

Mathematics

1 answer:

labwork [276]3 years ago

3 0

Answer:

y+4=-2/3 (x+1)

Step-by-step explanation:

-1 = x1

-4 = y1

m = -2/3

slope - intercept form = y - y1 = m(x - x1)

y-(-4) = -2/3(x - (-1))

y + 4 = -2/3(x +1)

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7nadin3 [17]

Answer:

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Step-by-step explanation:

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2 years ago

It takes 16pounds of seed to completely plant a 3-acre field. How many acres can be planted per pound of seed?

tiny-mole [99]

Answer:

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Step-by-step explanation:

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3 years ago

What is the area of

Inessa05 [86]

I hope this helps you

Area=2.6

Area=12

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3 years ago

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What is the area of this figure? 49.5 in² 66.5 in² 84 in² 91 in²

zubka84 [21]

The given figure can be divided in two parts 1) Square with side 7 in 2) A right triangle with base 12 in and height 7 in.

1) Area of square = $side^{2}$

Side of the square is 7 in.

Area = $7^{2} =49in^{2}$

2) Area of triangle = $\frac{1}{2} .base . height$

Area of triangle = $\frac{1}{2} (12)(7) =42in^{2}$

Area of polygon= Area of square+ Area of triangle

Area of polygon = 49+42 =91 square in.

Area = $91in^{2}$

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3 years ago

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A rectangular box with a square base is open at the top and has a volume of 12 cubic feet. Each side of the base has a length of

Stolb23 [73]

We know that the side lengths of the square base are: x * x. The volume is 12, so for now, let's say that y is the other side length. Then, x * x * y = 12. We can solve for y: y = 12/x^2. Now, we find the surface area of the 5 sides.

Four of the sides have the same area: x * (12/x^2) = 12/x, so we multiply this by 4: 48/x.

The last side is the base: x * x = x^2.

We add 48/x to x^2:

x^2 + 48/x

So, the answer is the fourth choice, (d).

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3 years ago