4 years ago

Question Navigator Enter the answer.cubed roots What is

Mathematics

1 answer:

Helen [10]4 years ago

5 0

The answer is 11..and there's a pic for u too...my pleasure helping you

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Triangle ABC is a non-right triangle with Angle C = 117, a = 12, and b = 18. Find Angle B to the nearest tenth.

qwelly [4]

Using the law of cosines and sines, the measure of angle B is: 38.4°.

<h3>What is the Law of Cosines and Sines?</h3>

Law of cosines is: c = √[a² + b² ﹣ 2ab(cos C)]

Law of sines is: sin A/a = sin B/b = sin C/c

Use the law of cosines to find c:

c = √[12² + 18² ﹣ 2(12)(18)(cos 117)]

c ≈ 25.8

Use the law of sines to find angle B:

sin B/b = sin C/c

sin B/18 = sin 117/25.8

sin B = (sin 117 × 18)/25.8

sin B = 0.6216

B = sin^(-1)(0.6216)

B = 38.4°

Learn more about the law of cosines on:

brainly.com/question/23720007

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A survey was given to 271 people asking whether people like dogs and/or cats. 108 said they like dogs 164 said they like cats 63

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A small airplane flies 750 miles with an average speed of 250 miles per hour. 1.75 hours after the plane leaves, a Boeing 747 le

sleet_krkn [62]

Answer:

The average speed of the 747 was of 600 miles per hour.

Step-by-step explanation:

A small airplane flies 750 miles with an average speed of 250 miles per hour.

Velocity is distance divided by time, and here, we find the time of the small airplane. So

$v = \frac{d}{t}$

$250 = \frac{750}{t}$

$250t = 750$

$t = \frac{750}{250}$

$t = 3$

1.75 hours after the plane leaves, a Boeing 747 leaves from the same point. Both planes arrive at the same time;

This means that it traveled 750 miles in 3 - 1.75 = 1.25 hours.

What was the average speed of the 747?

$v = \frac{d}{t} = \frac{750}{1.25} = 600$

The average speed of the 747 was of 600 miles per hour.

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3 years ago