3 years ago

Can you solve the 3 questions below?

Mathematics

1 answer:

trasher [3.6K]3 years ago

6 0

Answer:

a - car

b - plane b

10 overs

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Solve the proportion. When necessary, round to the nearest tenth? 36/j = 7/20

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Work is provided in the image attached.

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A cable installer charges $40.00 per hour plus a $60.00 service charge. Your father's firm hires him to hook up his company's in

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Set up the equation ... 60 + 40X = total charges... where X is the number of hours (8.5)

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2 years ago

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Total surface area of a cube is 1014cm^2. It's volume will be :

Karolina [17]

Answer:

Option A (2197 cm³)

Step-by-step explanation:

For a cube with length of each side "a" , it's

Total Surface Area = 6a²
Volume = a³

_____________________________________________

According to the question ,

Total Surface Area = 1014 cm²

Let the length of each side of cube be 'a'.

Using the formula ,

$6a^{2} =1014$

$=> a^{2} =\frac{1014}{6} = 169$

$=> a = \sqrt{169} = +13 \: or -13$

But length can't be negative . So , length of each side = 13 cm

∴ Volume of cube = 13³ = 2197 cm³

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3 years ago

What is the correct order of operations for simplifying the expression 2 - 3x + 5 + 71 - 5x)2+x

lisov135 [29]

Answer:

Your answer would be: square the binomial, distribute 7 inside the parentheses, and then combine like terms

Step-by-step explanation:

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2 years ago

The length of a rectangular rug is 4 feet more than the width. If the area of the rug is 252 square feet, find the dimensions of

Allushta [10]

4 x ? = 252

Do the opposite of multiplication.

252 ÷ 4 = ?

? = 63.

Hope this Helps! :)

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3 years ago