The length of a rectangle is 5 more than twice the width. If the perimeter of the rectangle is 34, what is the length?

What is 600,319,287,914 + 297,997,000,026?

geniusboy [140]

898316287940

hope this helps, back to my hole i go

6 0

3 years ago

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You download 15 music files on your computer and plan to save 7 of them to an MP3 player. In how many ways can u arrange the son

Ulleksa [173]

Answer:

32,432,400

Step-by-step explanation:

This you can use a permutation.

P(15,7)15x14x13x12x11x10x9

There are 32,432,400 ways to arrange it.

3 0

3 years ago

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the mean of the commute time to work for a resident of a certain city is 28.8 minutes. assume the standard deviation of the comm

hjlf

Answer:

The minimum percentage of the commuters in the city has a commute time within 2 standard deviations of the mean is 75%.

Step-by-step explanation:

We have no information about the shape of the distribution, so we use Chebyshev's Theorem to solve this question.

Chebyshev Theorem

At least 75% of the measures are within 2 standard deviations of the mean.

At least 89% of the measures are within 3 standard deviations of the mean.

An in general terms, the percentage of measures within k standard deviations of the mean is given by $100(1 - \frac{1}{k^{2}})$ .

Applying the Theorem

The minimum percentage of the commuters in the city has a commute time within 2 standard deviations of the mean is 75%.

3 0

3 years ago

I'm being timed pls help will pick brainliest

stiv31 [10]

Answer:

Cos 0° = 6.42 = V1

6th quadrant.

So, cos x = 0 implies x = (2n + 1)π/2 , where n takes the value of any integer. For a triangle, ABC having the sides a, b, and c opposite the angles A, B, and C, the cosine law is defined. In the same way, we can derive other values of cos degrees like 30°, 45°, 60°, 90°, 180°, 270°and 360

Step-by-step explanation:

if sin a= 3/4 then a = 50

if sin = 4/5 then a = 60

if sin = 2/3 then a = 40

But we can perfect this

if sin = 4/5 then a = 57 as 4/5 = 0.83

We want 0.8 = 4/5

if sin = 4/5 then a = 54 as 4/5 = 0.809

if sin = 4/5 then a = 53.5 as 4/5 = 0.80385

Now for cos

It is much easier than it initially appears. Remember the definition of SINE:

SINΘ = opp In your case, that means the opposite is 4/5 = 0.80385 (yes, ignore the sign for now) and the hypotenuse is 11.48910018

hyp Please draw that triangle right now, because it will help you a lot at the end.

53.50 degree Remember to place the angle in the appropriate spot.

Now, use the Pythagorean Theorem to find the missing side (easy, right? It's 9.534) and place it in the adjacent position.

You can easily find all of the trig functions now!

Simply remember that:

COSΘ = Adj with SEC the reciprocal of this one

Hyp

TANΘ = Opp COT the reciprocal of TAN and, if anyone asks, CSC coming from SIN.

Adj

I told you to ignore the signs, but now we can't anymore. Remember the four quadrants and the memory trick:

A -- ALL are positive

Smart -- SIN and CSC are positive

Trig -- TAN & COT are positive

Class -- COS and SEC are positive.

Since your SIN was negative, it must be in III or 6, and COS is positive in I and 6 So we're in quadrant 6 then!

Only your COS and SEC will be positive, the rest negative

7 0

2 years ago

In a coordinate plane, what is the distance between (4,-8) and (4, -12)?

Marina86 [1]

Since x co-ordinates are constant, answer has to be difference in y co ordinates therefore the answer is 4

7 0

3 years ago

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