MATHEMATICS HIGH SCHOOL

Find the missing angle.
Round to the nearest whole degree.
Find the missing angle. Round to the nearest whole degree. - 1

Answers

Answer 1
Answer:

Answer:

θ = 37°

Step-by-step explanation:

The missing angle is θ

cos θ = 4/5

cosθ = 0.8

  • Using a calculator:

cos^(-1)(0.8) = 36.86≈ 37°

so θ = 37°

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All of the following represents the same ratio except 4:3 4/3 or 3 to 4

Answers

Answer:

3 to 4

Step-by-step explanation:

cause 4:3 can be written as 4/3 or 4 to 3

but 3 to 4 is written as 3:4 or 3/4

Answer:

3 to 4

Step-by-step explanation:

All of the other ratios are 4 to 3.

I traveled 117 miles in 2.25 hours. What was my average speed? How would I solve this ?

Answers

117 miles in 2.25 hours

Divide both numbers by 2.25

52 miles per hour
You just divide 117 in 2.25 and you will get a answer of.... 52MPH 

The sum of three consecutive odd numbers is 183. What is the smallest of the three numbers ?

Answers

Answer:

59

Step-by-step explanation:

Average = 183/3 = 61

Two consecutive odd numbers differ by 2.

Hence, the numbers are 61-2, 61, 61 +2  or      59, 61, 63

The smallest is 59.

What is the solution to the system of linear equations?4x + 6y = 20
-5x + 7y = 62

Fill in the blanks with your x and y coordinates

( ________, _________)

Answers

To find the solution to the system of linear equations:

4x + 6y = 20

-5x + 7y = 62

We can use the method of substitution or elimination to solve for x and y. Let's use the elimination method:

1. Multiply the first equation by 5 and the second equation by 4 to eliminate the x variable:

20x + 30y = 100

-20x + 28y = 248

2. Add the two equations together:

(20x - 20x) + (30y + 28y) = 100 + 248

58y = 348

3. Divide both sides of the equation by 58:

y = 6

4. Substitute the value of y back into either of the original equations. Let's use the first equation:

4x + 6(6) = 20

4x + 36 = 20

4x = 20 - 36

4x = -16

x = -4

Therefore, the solution to the system of linear equations is:

(x, y) = (-4, 6)

(5x2 + 2x + 11) - (7 + 4x - 2x2)9 - 2x - 2x2
3x2 - 2x + 4
3x2 + 6x + 4
7x2 - 2x + 4

Answers

The answer is 7x^2 - 2x + 4, so answer D. 
Your answer should be D!

19/20-3/20 in simplest form

Answers

The correct answer is 8
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