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3 years ago

I need help: what is this?

Mathematics

1 answer:

givi [52]3 years ago

3 0

Answer:

Step-by-step explanation:

first you have to do the 1+2 to get 3 then you divide 6 by 2 and get 3 then you multiply 3x3 to get 9!

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How do i find XY??????

vladimir1956 [14]

I think you have to 5 - 2.5

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3 years ago

-3 3/8 x 3/8. and can u explain step by step. Pls Help me

lana [24]

Answer: -2 1/8

Step-by-step explanation: I can't explain but i think that is the answer.

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3 years ago

Please help..... Simplify each equation.

dybincka [34]

A) this is the simplified form
$( {x}^{3} + 3 {x}^{2} - 6) + ( {x}^{2} - x + 7) \\ = {x}^{3} + 3 {x}^{2} - 6 + {x}^{2} - x + 7 \\ = {x}^{3} + 4 {x}^{2} - x + 1$
b)
$(5 {x}^{2} - 4x + 7) - ( {x}^{2} - 2x - 5) \\ = 5 {x}^{2} - 4x + 7 - {x}^{2} + 2x + 5 \\ = 4 {x}^{2} - 2x + 12$

8 0

3 years ago

Evaluate the expression StartFraction 12 minus 3 y Over 2 EndFraction plus y StartFraction 2 y minus 4 Over y EndFraction for y

vladimir1956 [14]

Answer: $\frac{31}{6}$

Step-by-step explanation:

Given

$\Rightarrow \frac{12-3y}{2}+y\frac{2y-4}{y}$

$\Rightarrow \frac{12-3y}{2}+\frac{y^2+2y-4}{y}$

Now for $y=3$

$\Rightarrow \frac{12-3\times 3}{2}+\frac{3^2+2\times 3-4}{3}$

$\Rightarrow \frac{3}{2}+\frac{9+6-4}{3}$

$\Rightarrow \frac{3}{2}+\frac{11}{3}$

$\Rightarrow \frac{9+22}{6}=\frac{31}{6}$

3 0

3 years ago

Read 2 more answers

What is 5,783 divided by 6 ?

diamong [38]

I would suggest to do future long division by learning the steps with an acronym. For me, I use DMSB, which stands for Divide, Multiply, Subtract, Bring Down. An example is attached below.
To solve this particular equation, you would get 963.33333... which would round to 963.3
I hope this helps!

8 0

3 years ago