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4 years ago

Manipulate formulas YALL PLZ HELP I BEG U i’ll give brainliest

Mathematics

1 answer:

disa [49]4 years ago

6 0

Answer:

$\sqrt{\frac{3V}{\pi h} }$

Step-by-step explanation:

We have $V = \frac{1}{3} \pi r^2h$ .

We can multiply both sides by 3 to get:

$3V = \pi r^2h$

Divide by $\pi$ by both sides

$\frac{3V}{\pi} = r^2h$

And divide by h by both sides:

$\frac{3V}{\pi h} = r^2$

And finally take the square root of both sides.

$\sqrt{\frac{3V}{\pi h} } = r$

Done!

You might be interested in

I also need help with this please

kvasek [131]

Hi!

So obviously we have to divide each side by -5. It's pretty simple! Let me show you...

-125 ≥ -135
-125/-5 ≥ -135/-5
dividing 2 negative numbers make a positive
25 ≥ 27
Now that the expression has changed, we have to flip the inequality sign.
25 ≤ 27
^the answer

Hope this helps! :)

4 0

3 years ago

Complete the steps to simplify (y^4/3•y^2/3)^-1/2. Apply the product of powers property to the expression inside the parentheses

MrRissso [65]

Option A

$\left(y^{\frac{4}{3}} \cdot y^{\frac{2}{3}}\right)^{\frac{-1}{2}} = \left(y^{2}\right)^{\frac{-1}{2}}$

Solution:

Given expression is:

$\left(y^{\frac{4}{3}} \cdot y^{\frac{2}{3}}\right)^{\frac{-1}{2}}$

Product of powers property:

The product of powers property tells us that when you multiply powers with the same base you just have to add the exponents

Which is represented as,

$a^m.a^n = a^{m+n}$

Therefore, the given expression becomes,

$\left(y^{\frac{4}{3}+\frac{2}{3}}\right)^{\frac{-1}{2}}$

Now add the exponents, we get

$\left(y^{\frac{4+2}{3}}\right)^{\frac{-1}{2}}$

Simplify the above expression

$\left(y^{\frac{6}{3}}\right)^{\frac{-1}{2}}$

Simplify the exponent of y, we get

$\left(y^{2}\right)^{\frac{-1}{2}}$

Thus Option A is correct

6 0

3 years ago

Read 2 more answers

Just trying some stuff coz i dont use this ttoo much

trapecia [35]

Step-by-step explanation:

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6 0

3 years ago

PLS HELP ME GUYS ASAP FOR 4, 5, 6, and 7 (SHOW WORK!!!) + LOTS OF POINTS!

oksano4ka [1.4K]

4)

12/16=21/b

multiply both sides by b
(12/16)b=21

now multiple both sides by (16/12)
b = 21 (16/12) =28

5)
rate is distance / time or time/distance

train travels 279 km per 1.5 hr =270/1.5
or
1.5 hr per 270 =1.5/27p

answer choice a and c matches that.
looking at choice C...270km/1.5hr=5hr/270km

looking at choice A.. 1.5hr/270km=5hr/k km

the units don't match for choice C so the

right answer is A

6)

1.5/270=5/k

multiply both sides by k
(1.5/270)k=21

now multiple both sides by (270/1.5)
k = (270/1.5)21= 900

7) 75 points per 6 game

75 points / 6 games

75/6=P/20

multiply both sides by 20
(75/6)20=P

P=250

8 0

3 years ago

Ten minutes after he left his home, Gerald was 40 miles from his grandmother’s house. Then, 22 minutes after he left, he was 34

Svetlanka [38]

After 10 minutes, he's 40 miles away. After 22 minute, he's 34 miles away. Therefore, in those 12 minutes between, he covered 6 miles. We can make a ratio out of this: 6/12 = 0.5, so he is walking at a rate of 0.5 mi/min (miles per minute). Finally, we can set x/90 equal to 0.5/1 because he is walking at the same rate the entire time. Cross multiply to solve for x. Finally, you get that he had to travel 45 miles in 90 minutes, so his home is 45 miles away from his grandmother's.

3 0

3 years ago