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4 years ago

My mom needs help it's negative exponets it's 5x^-3y^4)^-3 Please explain step by step my mom has the chest sheet

Mathematics

1 answer:

Rufina [12.5K]4 years ago

5 0

Answer:

x^9

----------------

125 y^12

Step-by-step explanation:

(5x^-3 y^4)^-3

We know that (ab)^c can be split into a^ * b^c

5^-3 *x^-3 ^-3* y^4 ^-3

We also know that a^b^c = a^ (b*c)

5^-3 *x^(-3 *-3) * y^(4 *-3)

5^-3 *x^(9) * y^(-12)

We know that negative exponents in the numerator move it to the denominator. The exponent stays the same except for the negative.

1/5^3 * x^9 * 1/ y^12

We know that 5^3 = 125

Rearranging the order

x^9

----------------

125 y^12

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Answer:

$\frac{dT}{dt} = -0.05\;min^{-1} (T-70\ºF)$

Step-by-step explanation:

Hi!

Lets call:

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4 years ago

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3 years ago

What is 8 4/5 - 1 2/4

Alexus [3.1K]

Answer:

8 $\frac{4}{5}$ - 1 $\frac{2}{4}$ = $7 \frac{3}{10}$

Step-by-step explanation:

Convert the mixed number to improper fractions, then find the LCD ( least common denominator ) and combine.

You can write your answer in -

Exact Form :

$\frac{73}{10}$

Decimal Form :

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Hope this helps!

Davinia.

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3 years ago

Astronomers treat the number of stars X in a given volume of space as Poisson random variable. The density of stars in the Milky

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Answer:

Explained below.

Step-by-step explanation:

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Then in 4 cubic light years there will be, 4 × (1/16) = (1/4) stars.

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Then in 1 cubic light years there will be, (1/16) stars.

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3 years ago

Alice evaluated the expression below but got an incorrect answer. 12• (0.25) • (-8) ÷ 1/3 • 53• (8) ÷ 1/3 • 524 • 1/3 • 58 • 540

MrMuchimi

12• (0.25) • (-8) ÷ 1/3 • 5

3• (8) ÷ 1/3 • 5

24 • 1/3 • 5

8 • 5

Until the second step is ok.

in the third step, she multiplied the 1/3 term instead if dividing it

24 ÷ 1/3 . 5

24 ÷ 5/3

72/5

5 0

1 year ago