2 years ago

Which expression is equivalent to 3x^-6y^-3 / 15x^2y^10? Assume x ≠ 0, y ≠ 0

Mathematics

1 answer:

9966 [12]2 years ago

3 0

$\textsf {Simplifying the exponents :}$

$\mathsf {\frac{3x^{-6}y^{-3}}{15x^{2}y^{10}}}$

$\mathsf {\frac{1}{5x^{(2+6)}y^{(10+3)}}}$

$\mathsf {\frac{1}{5x^{8}y^{13}}}$

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12 divided by 4 is 25% so add the 12 and four together

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3 years ago

Read 2 more answers

Please and thankyou (:

den301095 [7]

Let's evaluate the ratio test:

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4 years ago

A light bulb has a lifetime X that is exponentially distributed with a mean 340 hours. Find the probability that the bulb lifeti

LUCKY_DIMON [66]

Answer:

0.7026

Step-by-step explanation:

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Recall that,

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$\displaystyle P(X>220 | X>100) = \frac{P(X>220,X>100)}{P(X>100)} = \frac{e^{-\lambda \times 220}}{e^{-\lambda \times 100}} = \frac{0.5236}{0.7452} = 0.7026$

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Jamie can work no more than 20 hours a week this summer. She needs to earn at least $256 a week to save enough

ivanzaharov [21]

She will have to get 12.8 per hour

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3 years ago

Evaluate 12 x (4^-2/4^-4) A 1/4 B 3/4 C 16 D 192

MrMuchimi

12 ×4^4/4^2
=12×4^2
=12×16
=192

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3 years ago