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3 years ago

13

AS one of her chores Staci must vacum 1/2 of the house. If she has already vacumed 1/3 of her share tonight whatp part of the li

ving part of the house is vacumed

1 answer:

Tatiana [17]3 years ago

3 0

Answer:

1/6

Step-by-step explanation:

sim[le thought

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Pavel [41]

Answer:

Step-by-step explanations:

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2 years ago

Given that cos(theta) = 8/17 and that theta lies in Quadrant IV, what is the exact value of sin 2(theta)?

Deffense [45]

Answer: $-\frac{240}{289}$

=========================================================

Explanation:

Use the pythagorean trig identity $\sin^2(\theta)+\cos^2(\theta) = 1$ and plug in the fact that $\cos(\theta) = \frac{8}{17}\\\\$

Isolating sine leads to $\sin(\theta) = -\frac{15}{17}\\\\$ . I'm skipping the steps here, but let me know if you need to see them.

The result is negative because we're in quadrant 4, when y < 0 so it's when sine is negative.

Therefore,

$\sin(2\theta) = 2\sin(\theta)\cos(\theta)\\\\\sin(2\theta) = 2*\left(-\frac{15}{17}\right)*\left(\frac{8}{17}\right)\\\\\sin(2\theta) = -\frac{240}{289}\\\\$

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2 years ago

Write each number as a fractions with positive exponents.

boyakko [2]

You can't take away 6 from 2 but you can switch them and get 6-2 and that's =4 10-8=2 7-5=2

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3 years ago

An animal park has lions,tigers and zebras 17% a lions 3/10 a zebras what % is the tigers

lawyer [7]

17% are lions, 3/10 = 30% are zebras, therefore the remaining 100 - 47 = 53% of animals are tigers.

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3 years ago

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It was 96 kilometers from perry to medford. David raced to medford and idled back. If the round trip took 8 hours, what was his

valkas [14]

Average speed = (total distance) / (total time)

Average speed = (192 km) / (8 hours) = 24 km per hour .

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3 years ago

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