4 years ago

Expand and simplify: (x − 5y) (x + 3y)

Mathematics

1 answer:

VMariaS [17]4 years ago

5 0

Answer = x^(2)-2xy-15y^(2)

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Ingrid spends $120 on car repairs. Which integer represents the amount of money Ingrid must earn in order to create a zero pair?

Julli [10]

Answer: -120

Step-by-step explanation:

this would be the answer because if you take a positive and add it to a negative you get zero if their the additive inverse of the number.

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3 years ago

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Solve for x : <img src="https://tex.z-dn.net/?f=%5Cqquad%20%5Crightarrow%5Cbf%204x%20%2B%209x%20%2B%202x%20%3D%2030" id=

Lubov Fominskaja [6]

Answer:

x=2

Step-by-step explanation:

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The volume of a cone is 36 min 3. What is the volume of a cylinder with the same base and height as the cone?

Rina8888 [55]

Answer: LAST OPTION

Step-by-step explanation:

The formula for calculate the volume of a cone is:

$V_{co}=\frac{1}{3}r^2h\pi$

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The formula for calculate the volume of a cylinder is:

$V_{cy}=r^2h\pi$

Where r is the radius and h is the height.

As you can see, the difference between the the formulas is that r²hπ of the cone is divided by 3. Therefore, if you know the volume of the cone and you know that cylinder has the same base and height as the cone, you have to multiply the volume of the cone by 3.

Therefore, the result is:

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What is the slope of the line that passes through the points (7,−4) and (7,0)?

GrogVix [38]

Answer:

undefined

Step-by-step explanation:

To find the slope given two points we can use

m = (y2-y10/(x2-x1)

= (0 - -4)/(7-7)

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4/0

This slope is undefined since we are dividing by 0

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Find the midpoint between endpoints (4,6) and (10,-4). I

agasfer [191]

Answer: 5 and 3

Step-by-step explanation:

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