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3 years ago

I need help working question 8. I don't understand how to start it

Mathematics

1 answer:

Lina20 [59]3 years ago

8 0

Why don't you first try to use the cosine law to solve for an angle and then make use of the sin law to solve for the remaining angles.

Cosine law

C^2 = A^2 + B^2 - 2AB(cos C)
Solve for cos C, and then take the inverse of the trig ratio to solve for the angle.

Then set up a proportion like you have done using the sin law and solve for another angle. Knowing the sum of all angles in a triangle add up to 180 degrees, we can easily solve for the remaining angle.

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Who was responsible for inventing the first working four-stroke engine?

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Answer:

Nikolaus Otto was responsible for inventing the first working four-stroke engine.

Step-by-step explanation:

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3 years ago

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Paladinen [302]

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3 years ago

Read 2 more answers

The grade you make on your exam varies directly with the number of correct answers you get on the exam.Answering 15 questions co

yuradex [85]

Answer:

The grade you make on your exam varies directly with the number of correct answers. The constant of variation is 5

Solution:

Given, The grade you make on your exam varies directly with the number of correct answers you get on the exam.

Answering 15 questions correctly will give you a grade of 75 what is the.

We have to find what is the Constant of variation.

Now, according to the given information, grade  number of correct answer

Then, grade = c x number of correct answers, where c is constant of variation.

Now, substitute grade = 75 and number of correct answers = 15

$\text { Then, } 75=c \times 15 \rightarrow c=\frac{75}{15}=5$

Hence, the constant of variation is 5

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3 years ago

the distance around a square room measures 101 feet 7 inches. Estimate the length of each side of the room

iris [78.8K]

Answer:

304.75 inches

Step-by-step explanation:

Total distance = 101 feet 7 inches

Recall :

1 Feet = 12 inches

Total distance in inches = (101 * 12) + 7 = 1219 inches

Perimeter of square = 1219

Sides of a square are always equal

Number of sides = 4

Hence, length of each side = 1219 inches / 4 = 304.75 inches

6 0

2 years ago