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3 years ago

True or False? The total surface area of a cube can be calculated using its volume.

Mathematics

1 answer:

kifflom [539]3 years ago

6 0

Answer: false

Step-by-step explanation:

Surface Area Formula Surface Area Meaning

SA=2B+Ph Find the area of each face. Add up all areas.

SA=B+12sP Find the area of each face. Add up all areas.

SA=2B+2πrh Find the area of the base, times 2, then add the areas to the areas of the rectangle, which is the circumference times the height.

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Y-3=-3y-43 how would i solve?

frez [133]

Answer: y−3=−3y−43

Step 1: Add 3y to both sides.

y−3+3y=−3y−43+3y

4y−3=−43

Step 2: Add 3 to both sides.

4y−3+3=−43+3

4y=−40

Step 3: Divide both sides by 4.

−40

y=−10

Answer:

y=−10

Step-by-step explanation: brainliest:)

7 0

3 years ago

Please help asap<br><br> solve x^4+5x^2+4=0

const2013 [10]

Answer:

$x=\pm i\text{ or }x=\pm2i$

Step-by-step explanation:

So we have the equation:

$x^4+5x^2+4=0$

Let's let u be equal to x². So:

$u^2+5u+4=0$

Factor:

$(u+1)(u+4)=0$

Zero Product Property:

$u+1=0\text{ or } u+4=0$

Subtract:

$u=-1\text{ or }u=-4$

Replace:

$x^2=-1\text{ or }x^2=-4$

Take square root:

$x=\pm\sqrt{-1}\text{ or }x=\pm\sqrt{-4$

Simplify:

$x=\pm i\text{ or }x=\pm2i$

7 0

3 years ago

Kai has 130 beads to make necklaces. there or 100 blue beads. there are 20 red beads. what fraction of the beads are blue?what f

Dominik [7]

100/130 = b
20/130 = r

5 0

3 years ago

Read 2 more answers

2/7 into percents ??

mafiozo [28]

Answer:

28.57142857 %

Step-by-step explanation:

Convert the fraction to a decimal, then multiply by 100 .

28.57142857 %

3 0

3 years ago

Read 2 more answers

What is 13/42 simplified ?

telo118 [61]

Answer:

that is actually 13/42

Step-by-step explanation:

cuz 13 cant be simplified by any number hope it help

7 0

2 years ago

Read 2 more answers