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2 years ago

4.) Emma wants to know the volume of a box of chocolates

Mathematics

1 answer:

VladimirAG [237]2 years ago

7 0

Answer:

390 cubic centimeters

Step-by-step explanation:

the volume of a box is the length width and height all multiplied together

so this is what the equation would look like

5(6)(13)

you can split this up into

5(6) * 13

so 5(6) is 30

30(13)

this is 390

so the box is 390 cubic centimeters

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Solve the equation without the use of a calculator. please Help!!! Thank you!!!<br> 12x^3-30x=5-2x^2

nata0808 [166]

So, since we have a cubic equation with 4 terms, the first thing we should try is factoring by grouping, so:

$12x^3+2x^2-30x+5 =0 \implies \\ 2x^2(6x+1)-5(6x+1)=0 \implies \\ (2x^2-5)(6x+1) = 0$

Now that we've factored our equation, we can use ZPP and break it up:

$2x^2-5 = 0 \implies \\ 2x^2=5 \implies\\ x^2=\frac{5}{2} \implies\\ x=\pm\frac{\sqrt{5}}{\sqrt{2}}=\pm\frac{\sqrt{10}}{2} \\ \\ 6x+1 =0 \implies \\ 6x=-1 \implies\\ x=\frac{-1}{6}$

So, our solutions are:

$x\in \{\frac{\sqrt{10}}{2},-\frac{\sqrt{10}}{2},-\frac{1}{6}\}$

4 0

3 years ago

If 3/5 of a sum of money is 1200. what is the sum

inna [77]

Answer:

2000

Step-by-step explanation:

let the sum=x

3/5 of x=1200

x=1200×5/3=2000

5 0

3 years ago

Read 2 more answers

Someone please help me real quick

nadezda [96]

Answer:

1/4

Step-by-step explanation:

8 0

3 years ago

1. What is 26% written as a decimal?

sattari [20]

Answer:

.26 = 26% hope this helps! :)

Step-by-step explanation:

.26

100 = 1.00

26 = .26

you just move the decimal point over 2

5 0

3 years ago

Read 2 more answers

i am a number less than 3,000. when you divide me by 32,my remainder is 30. when you divide me by 58,my remainder is 44. what nu

Marat540 [252]

32(24)+30=58(13)+44=798

I am 798

3 0

3 years ago