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Alborosie
3 years ago
10

The volume of a cube is 710cm3 work out the length of its side rounded to 1 decimal place​

Mathematics
1 answer:
Fofino [41]3 years ago
6 0
8.9 because I used a calculator
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The arrow on the spinner is to be spun once.
liubo4ka [24]
I think your anwser is D
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3 years ago
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3y-6x=9 another equation that forms a system of equations that has infinitely many solutions?
Margaret [11]

you need another equation to solve them simultaneously since they are two unknown

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A rectangular lot is 145 yards long and 100 yards wide.
mr_godi [17]

Answer:

150 by 100

Step-by-step explanation:

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2 years ago
Given the relation y = 7x2 + 3, if the input is 4, what is the output? (4 points)
aivan3 [116]
I'm assuming that you meant: 
y = 7x² + 3 

Remember! Inputs are always x values (unless stated otherwise). Meaning the problem says: 
x = 4 

y = 7(4)² + 3 

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4² = 4·4 = 16

Remember: 
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Follow PEMDAS from left to right (or in the case above from top to bottom).

7·16 + 3 = ? 

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(All I did to multiply was break it up into parts. If it confuses you don't worry about it, and just multiply it out like normal or use a calculator if you are allowed to)

112 + 3 = ? 

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4 0
3 years ago
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It takes three identical water pumps 8 hours to fill a pool, What is the constant of variation?
BaLLatris [955]

Answer:

Constant of variation is 24.

Step-by-step explanation:

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If one variable increases then, the other one decreases in proportion so that the product is unchanged,

if y is inversely proportional to x i.e y \propto\frac{1}{x} or

y =\frac{k}{x} ;where k is the constant of variation.

It is given that 3 identical water pumps takes 8 hours to fill a pool,

since, it will take less time with  more pumps, so it is an inverse variation.

By definition of inverse variation;

time = \frac{k}{pump}

Substitute the values to solve for k;

8 = \frac{k}{3}

Multiply by 3 to both sides we get;

8 \times 3 = \frac{k}{3} \times 3

Simplify:

k = 24

Therefore, the constant of variation is, 24

3 0
3 years ago
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