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3 years ago

81:18 equivalent to 36?

Mathematics

1 answer:

fiasKO [112]3 years ago

6 0

9/2 is the correct anwer

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The coordinates of the point K are (7,5) and the coordinates of point L are

aleksley [76]

Answer:

the distance between point K and point L is -12,0

6 0

3 years ago

I’ll and 20 for the answer

charle [14.2K]

Answer:

Step-by-step explanation:

First convert £ 300 to Yen

£1 = ¥ 168

£300 = 168 * 300 = ¥ 50400

As bank as ¥ 1000 notes, the money he get is ¥50,000

50000 ÷ 1000 = 50

Kevin gets 50 notes of ¥ 1000

6 0

2 years ago

Read 2 more answers

On his last birthday, Arnie was 144 centimeters tall. Since that time, he has grown h centimeters. Which expression tells Arnie'

telo118 [61]

Answer:

H(M) = (1)M + 10

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

Engineers want to design passenger seats in commercial aircraft so that they are wide enough to fit 95 percent of adult men. Ass

zimovet [89]

Answer:

$z=1.64$

And if we solve for a we got

$a=14.4 +1.64*1.1=16.204$

The 95th percentile of the hip breadth of adult men is 16.2 inches.

Step-by-step explanation:

Let X the random variable that represent the hips breadths of a population, and for this case we know the distribution for X is given by:

$X \sim N(14.4,1.1)$

Where $\mu=14.4$ and $\sigma=1.1$

For this part we want to find a value a, such that we satisfy this condition:

$P(X>a)=0.05$ (a)

$P(X$ (b)

We can find a quantile in the normal standard distribution who accumulates 0.95 of the area on the left and 0.05 of the area on the right it's z=1.64

Using this value we can set up the following equation:

$P(X$

$P(z$

And we have:

$z=1.64$

And if we solve for a we got

$a=14.4 +1.64*1.1=16.204$

The 95th percentile of the hip breadth of adult men is 16.2 inches.

8 0

2 years ago

If sec theta = - √30 / 3, find cos theta.<br> if sin(-theta) = -0.97, find cos (π/2 - theta).

Cloud [144]

Step-by-step explanation:

$\cos \theta = \frac{1}{ \sec\theta } = - \frac{3}{ \sqrt{30} } = - \frac{3 \sqrt{30} }{30} = - \frac{ \sqrt{30} }{10}$

$\cos( \frac{\pi}{2} - \theta )= \cos \frac{\pi}{2} \cos \theta + \sin \frac{\pi}{2} \sin \theta$

Note that

$\sin( - \theta) = - \sin \theta$

$\cos \frac{\pi}{2} = 0 \: \: \: \: \: \sin \frac{\pi}{2} = 1$

Therefore,

$\cos( \frac{\pi}{2} - \theta ) = 0.97$

5 0

3 years ago