3 years ago

Am i doing this correctly?

Mathematics

1 answer:

scoundrel [369]3 years ago

3 0

Yes that is how you do it

You might be interested in

Sians room is in the shape of a square. It’s area is 121 square feet . How long is one side of sian’s room ?

Sladkaya [172]

11. Square root of 121

5 0

3 years ago

When 5 is subtracted from the square of a number, the result is 4 times the number. Find the negative solution.

wariber [46]

Answer:

-1

Step-by-step explanation:

You can write it as...

$x^{2} -5=4x$

Carry the 4x

$x^{2} -4x-5=0$

Then use the quadratic formula to solve, since you want to find the negative solution, you don't need to find the positive solution, so we will have

$(4-\sqrt{16+20}) /2=\frac{4-6}{2}=\frac{-2}{2} =-1$

Therefore our answer is -1

8 0

3 years ago

Which values of a, b, and c represent the answer in simplest form 9/11 divided by 5/11

Elenna [48]

Answer:

1 4/5

Step-by-step explanation:

8 0

3 years ago

The cone and the cylinder below have equal surface area. True or false.

WARRIOR [948]

Answer:

False

Step-by-step explanation:

The surface area of the cone is

$V=\pi r^2 +\pi rl$

$SA=\pi r^2 +\pi\times r\times 2r$

$SA=\pi r^2 +2\pi\times r^2$

$SA=3\pi r^2$

The surface area of the cylinder is:

$SA=2\pi r^2 +2\pi rh$

$SA=2\pi r^2 +2\pi\times r\times r$

$SA=4\pi r^2$

3 0

3 years ago

I need help can you plz help me

horrorfan [7]

Simplify

10/3

Convert to a mixed fraction

3 1/3

4 0

3 years ago