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3 years ago

Please help me i don’t understand

Mathematics

1 answer:

kotykmax [81]3 years ago

8 0

537Answer:

Step-by-step explanation:73853ndnxhxnkxgsjdd

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How do I go about solving (27x^3/8y^9)^5/3? And what is the role of the numerator and denominator?

MrRissso [65]

$\left( \frac{27x^3}{8y^9}\right)^ \frac{5}{3} \\\\\\ =\left( \frac{(3x)^3}{(2y^3)^3}\right)^ \frac{5}{3} \\\\\\ = \frac{(3x)^{3 \times \frac{5}{3} }}{(2y^3)^{3 \times \frac{5}{3} }} \\\\\\ =\frac{(3x)^5}{(2y^3)^{5 }} \\\\\\ =\frac{243x^5}{32y^{15}}$

Now, If the exponent was negative like you asked....

$\left( \frac{27x^3}{8y^9}\right)^ {-\frac{5}{3}} \\\\\\ =\left( \frac{8y^9}{27x^3}\right)^ {\frac{5}{3}}\\\\\\ =\left( \frac{(2y^3)^3}{(3x)^3}\right)^ \frac{5}{3} \\\\\\ = \frac{(2y^3)^{3 \times \frac{5}{3} }}{(3x)^{3 \times \frac{5}{3} }} \\\\\\ =\frac{(2y^3)^{5 }}{(3x)^5} \\\\\\ =\frac{32y^{15}}{243x^5}$

5 0

3 years ago

What fraction of the rectangle is shaded? write the answer as a rational expression in simplified form.

Aliun [14]

Area of rectangle = x(x+2) = x^2 +2x

area of triangle = x*2/2 = x

so the shaded fraction of the rectangle will be x(x+2)/(x+2)=x

3 0

3 years ago

Teri ran 8 kilometers

viva [34]

Answer:

teri is tired

Step-by-step explanation:

from running

7 0

3 years ago

120% of a number is 36?

Savatey [412]

Answer:

Step-by-step explanation:

We have, 120% × x = 36

or,

120

100

× x = 36

Multiplying both sides by 100 and dividing both sides by 120,

we have x = 36 ×

100

120

x = 30

5 0

4 years ago

Read 2 more answers

— 4x — Зу = = 9<br> 5х = 15<br> Help me now

blsea [12.9K]

Answer:

y=-7

x=3

Step-by-step explanation:

I just used a calculator. Hope this helps. :)

8 0

3 years ago