3 years ago

2 people working at the same rate will take 6 hours to paint a room

Mathematics

2 answers:

ipn [44]3 years ago

4 0

Answer:

whats the question?

Step-by-step explanation:

worty [1.4K]3 years ago

4 0

Answer:

Ok. So ig each one of them takes 3 hours to paint half a room.

Step-by-step explanation:

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5. Show 3 different ways on how you can multiply two polynomials to get 30x^3.

Mrrafil [7]

10x(3x^2)
15x^2(2x)
5x(6x^2)

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3 years ago

The variance of a stock's returns can be calculated as the:

Tamiku [17]

Answer:

The correct option is b.

Step-by-step explanation:

The formula for standard deviation is

$\sigma^2=\frac{\sum {(x-\overline{x})^2}}{n}$

where, $\overline{x}$ is mean of the data and n is number of observation.

The variance of a stock's returns can be calculated by the above formula.

Variance of stock's returns is the average value of squared deviations from the mean.

Therefore the correct option is b.

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3 years ago

Replace A with a number to make A/24 ≥ 1/4 a true statement.

antiseptic1488 [7]

Answer:

B. 7

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3 years ago

Divide j by 9 and the multiply the quotient by 2

zhenek [66]

Answer:

Step-by-step explanation:

you will need to do:

j/9*2=2j/9

3 0

3 years ago

Solve:<br>i)x+y=5<br>ii)x-y=3<br>iii)2x+y=7<br>iv)3x-2y=0

Ulleksa [173]

Answer:

I) X+Y

when X=0

0+y=5

Y=5

When Y=0

X+0=5

X=5

(X,y)=(5,5)

(ii) X-Y=3

When X=0

0-Y=3

Y=-3

When Y=0

X-0=3

X=3

(X,Y)=(3,3(

(III) 2x+Y=7

when X=0

0+Y=7

Y=7

when Y=0

2x+0=7

2x=7

X=7/2 or 3.5

(X,Y)=(3.5,7)

(Iv)

3X-2Y=0

when X=0

0-2Y=0

-2Y=0

Y=0

When Y=0

3x-0=0

3X=0

X=0

(X,Y)=(0,0)

5 0

1 year ago