Ask question

Ask question

All categories

2 years ago

11

Can someone help me out please

1 answer:

Tju [1.3M]2 years ago

4 0

shoot, i don't know !!

You might be interested in

Help me to solve problem pless

sergejj [24]

Answer:

a:

5 x -3 +6

= 5 x 6 + -3

= 30 + -3

= 27

8 0

2 years ago

Read 2 more answers

PLEASE HELP ILL GIVE FREE POINTS PLUS BRAINLIEST

Alinara [238K]

It’s c you add the exponents

4 0

3 years ago

Read 2 more answers

What value should be added to the expression to create a perfect square?

Shalnov [3]

Let's take a look at a perfect square trinomial.

$(x+7)^2$

We can distribute this expression to get $x^2+14x+49$ .

An important relation to recognize here is that the constant is the square of half of the x value.

Now, if we wanted to add a number to $x^2+16x$ to make a perfect square trinomial, we could have the value of x and then square it.

Half of 16 is 8, and 8 squared is $\boxed{64}$

8 0

3 years ago

Match each spherical volume to the largest cross sectional area of that sphere

zlopas [31]

Answer:

Part 1) $324\pi\ units^{2}$ ------> $7,776\pi\ units^{3}$

Part 2) $36\pi\ units^{2}$ ------> $288\pi\ units^{3}$

Part 3) $81\pi\ units^{2}$ ------> $972\pi\ units^{3}$

Part 4) $144\pi\ units^{2}$ ------> $2,304\pi\ units^{3}$

Step-by-step explanation:

we know that

The largest cross sectional area of that sphere is equal to the area of a circle with the same radius of the sphere

Part 1) we have

$A=324\pi\ units^{2}$

The area of the circle is equal to

$A=\pi r^{2}$

so

$324\pi=\pi r^{2}$

Solve for r

$r^{2}=324$

$r=18\ units$

Find the volume of the sphere

The volume of the sphere is

$V=\frac{4}{3}\pi r^{3}$

For $r=18\ units$

substitute

$V=\frac{4}{3}\pi (18)^{3}$

$V=7,776\pi\ units^{3}$

Part 2) we have

$A=36\pi\ units^{2}$

The area of the circle is equal to

$A=\pi r^{2}$

so

$36\pi=\pi r^{2}$

Solve for r

$r^{2}=36$

$r=6\ units$

Find the volume of the sphere

The volume of the sphere is

$V=\frac{4}{3}\pi r^{3}$

For $r=6\ units$

substitute

$V=\frac{4}{3}\pi (6)^{3}$

$V=288\pi\ units^{3}$

Part 3) we have

$A=81\pi\ units^{2}$

The area of the circle is equal to

$A=\pi r^{2}$

so

$81\pi=\pi r^{2}$

Solve for r

$r^{2}=81$

$r=9\ units$

Find the volume of the sphere

The volume of the sphere is

$V=\frac{4}{3}\pi r^{3}$

For $r=9\ units$

substitute

$V=\frac{4}{3}\pi (9)^{3}$

$V=972\pi\ units^{3}$

Part 4) we have

$A=144\pi\ units^{2}$

The area of the circle is equal to

$A=\pi r^{2}$

so

$144\pi=\pi r^{2}$

Solve for r

$r^{2}=144$

$r=12\ units$

Find the volume of the sphere

The volume of the sphere is

$V=\frac{4}{3}\pi r^{3}$

For $r=12\ units$

substitute

$V=\frac{4}{3}\pi (12)^{3}$

$V=2,304\pi\ units^{3}$

5 0

2 years ago

Read 2 more answers

What's the proportionality of y = 2x

arlik [135]

If y = 2x, then y/x = 2. The constant of proportionality is 2.

5 0

2 years ago