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2 years ago

The perimeter of a square is80-64y units. Which expression can be used to show the side length of one side of the square?

Mathematics

1 answer:

erik [133]2 years ago

8 0

(80-64y)/4
.........

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Expand. Your answer should be a polynomial in standard form. (3c + 2)(c^2-6c-4)

evablogger [386]

Answer:

After expanding the polynomial $(3c + 2)(c^2-6c-4)$ we get $3c^3-16c^2-24c-8$

Step-by-step explanation:

We need to expand the polynomial $(3c + 2)(c^2-6c-4)$

Multiply the terms:

$(3c + 2)(c^2-6c-4)\\=3c(c^2-6c-4)+2(c^2-6c-4)\\=3c^3-18c^2-12c+2c^2-12c-8\\=3c^3-18c^2+2c^2-12c-12c-8\\=3c^3-16c^2-24c-8$

So, after expanding the polynomial $(3c + 2)(c^2-6c-4)$ we get $3c^3-16c^2-24c-8$

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2 years ago

Which equation justifies why 9 1/3 = 3 square root of 9?

kozerog [31]

Answer: answer is A

Step-by-step explanation:

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2 years ago

A weather forecaster predicts that there is a 45% probability of snow today. What is the probability that it will not snow?

Ilia_Sergeevich [38]

55% if the percent is out of 100%. in which most weather statisics are out of 100. in which you take 100-45= giving you 55%

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2 years ago

Two number cubes are rolled.

ehidna [41]

Answer:

I think it 7/18

Step-by-step explanation:

sorry if it is wrong

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2 years ago

A palm tree casts a shadow that is 28 feet long. A 6-foot sign casts a shadow 8 feet long.

s2008m [1.1K]

Answer: The height of the palm tree is 21 feet.

Step-by-step explanation:

We can use a ratio to solve this:

Actual height to shadow for both objects. The fraction equivalents must be equal.

6/8 = x/28 . Cross multiply

6(28) = 8x

168 = 8x Divide both sides by 8 (8's "cancel" on the right)

168/8 =8x/8

21 = x . This gives us the tree's height as 21 feet.

Another way to solve this is to use the ratios, but simplify the first fraction

6/8 = 3/4

Then multiply the length of the shadow by 3/4

3/4 × 28 = height

28÷4 = 7 7 × 3 = 21

21 feet= the height of the palm tree.

3 0

2 years ago