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3241004551 [841]
2 years ago
5

PLEASE HELP. I have no idea what to do

Mathematics
2 answers:
Mariulka [41]2 years ago
4 0

Answer:

What is it i can probably help

Step-by-step explanation:

Mademuasel [1]2 years ago
3 0

since \to :  x \sqrt[y]{ {n}^{z} }  = x( {n}^{ \frac{z}{y} } ) \\ then \: lets \: solve \: both \: values \: separately \to :  \\ \underline{ \boxed{solution \: to \:  \boxed{a}}} \\  120 \sqrt[3]{ {n}^{a} }  = 3 \sqrt{n} (40 \sqrt[6]{n} ) \\ 120 \sqrt[3]{ {n}^{a} }  = 3 \sqrt{n}  \times 40 \sqrt[6]{n} \\ 120 \sqrt[3]{ {n}^{a} }  = 120 (\sqrt{n} \times \sqrt[6]{n} ) \\ \sqrt[3]{ {n}^{a} }  = (\sqrt{n} \times \sqrt[6]{n} ) \\  {n}^{ \frac{a}{3} }  = {n}^{ \frac{1}{2} } \times {n}^{ \frac{1}{6} } \\ \frac{a}{3}  =  \frac{1}{2}   +   \frac{1}{6}  \\  \frac{a}{3}  =  \frac{4}{6}  \\ 6a = 12 \\ a =  \frac{12}{6}  =  2 \\ \underline{ \boxed{a  = 2 \:}}  \\  \\ \: \underline{ \boxed{solution \: to \:  \boxed{b}}} \\  27 \sqrt[4]{ {n}^{b} }  = 3 \sqrt{n} (9 \sqrt[4]{n} ) \\ 27 \sqrt[4]{ {n}^{b} }   = 3 \sqrt{n}  \times 9 \sqrt[4]{n} \\ 27 \sqrt[4]{ {n}^{b} }  = 27 (\sqrt{n} \times \sqrt[4]{n} ) \\ \sqrt[4]{ {n}^{b} }  = (\sqrt{n} \times \sqrt[4]{n} ) \\  {n}^{ \frac{b}{4} }  = {n}^{ \frac{1}{2} } \times {n}^{ \frac{1}{4} } \\ \frac{b}{4}  =  \frac{1}{2}   +   \frac{1}{4}  \\  \frac{b}{4}  =  \frac{3}{4}  \\ 4b = 12 \\ b =  \frac{12}{4}  =  3 \\ \underline{ \boxed{b  = 3 \:}}  \\ hence \to :  \\  \underline{ \underline{\boxed{a  = 2 \:}} \underline{ \boxed{b  = 3 \:}}}

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A scuba diver is 72 feet below sea level .As the diver rise he stops every 15 feet what integer tells his depth after the first
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The diver is at -72 because he is below sea level 0. He stops every 15 ft...After the first pause, he is at -72 + 15 = - 57

answer : -57
8 0
3 years ago
<img src="https://tex.z-dn.net/?f=a%20%3D%20p%20%2B%20prt" id="TexFormula1" title="a = p + prt" alt="a = p + prt" align="absmidd
Alexus [3.1K]

Answer:

\frac{A}{1 + rt}

Step-by-step explanation:

a = p + prt

<u>Distributive property:</u>

A = P(1 + rt)

<u></u>

<u>The divide both sides by ( 1 + rt)  :</u>

\frac{A}{1 + rt}

8 0
3 years ago
Use a system of equations to solve this problem.
emmainna [20.7K]
We have to set up 2 equations:
A) x + y = 10 liters
B) .05x + .25y = 10 * .10

Multiply equation B) by -4
B) -.2x  - y = -4 then add to equation A)
A) x + y = 10 liters
.8x = 6 liters
x = 7.5 liters of 5%
y = 2.5 liters of 25%

6 0
3 years ago
What best describes a triangle with angles measuring 60 degrees 40 degrees and 100 degrees
sladkih [1.3K]
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8 0
3 years ago
8% of a number is 20
Gnoma [55]
To find what the number is, we need to set up proportional fractions.
Currently, we have 8% of a number is 20.
To set up our fractions, put 100% under 8% as a fraction first.

It should look like this: 8/100 (hint: per-cent means per-hundred).

Now, we have 20 out of a number, x. This is because we are claiming that 20 is 8% of a number (if we just reword the question without changing the concept).
It should look like this: 20/x.

Our proportional fractions are:
20/x = 8/100.

To solve for this, we need to cross-multiply the denominator of 8/100 (bottom number, 100) with the numerator of 20/x (top number, 20).

This product equation should look like this:
20 x 100 (when simplified, we get 2000).

Now, we need to cross multiply the numerator of 8/100 (top number, 8) with the denominator of 20/x (bottom number, x).

This product equation should look like this:
8x.

Now that we've cross-multiplied, set our two products as an equation.

8x = 2000.

To solve for x, divide both sides by 8 (remember, what you do to one side of an equation, you must do it to the other).

8x / 8 = x
2000 / 8 = 250.

x = 250

Your final answer is:

8% of 250 is 20.

I hope this helps!
3 0
3 years ago
Read 2 more answers
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