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2 years ago

What is the value of x? If sin (8x - 18)º = cos (5x + 4)°

Mathematics

1 answer:

kobusy [5.1K]2 years ago

3 0

Answer:

Answer x = 8

Step-by-step explanation:

(5x + 4) + (8x - 18)= 90 The two angles must be complementary for this to work. Remove the brackets

5x + 4 + 8x - 18 = 90 Collect like terms

13x - 14 = 90 Add 14 to both sides

13x = 104 Divide by 13

x = 8 Answer

Check

Sin(8*8 - 18) = sin(64 - 18) = sin(46) = 0.7193

Cos(5*8 + 4) = cos(44) = 0.7193

This problem is very interesting. Thanks for posting.

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Endpoint 1: (-1,2)<br> Midpoint: (9,-6)<br> Endpoint 2=

Vlad [161]

Answer:

(19 , -14)

Step-by-step explanation:

Find the distance in between each x & y for a coordinate.

Let: (x₁ , y₁) = (-1 , 2)

Let: (x₂ , y₂) = (9 , -6)

From x₁ ⇒ x₂: 9 - (-1) = 10

From y₁ ⇒ y₂: -6 - 2 = -8 = 8*

*Remember that distance cannot be negative, but for the sake of this question, we will leave it as -8.

The distance between the x points are in intervals of 10. The distance between the y points are in intervals of 8. Add 10 & subtract 8 to their respective numbers to get endpoint 2:

(9 (+ 10) , -6 (- 8)) = (19 , -14)

Endpoint 2 = (19 , -14)

7 0

3 years ago

PLAEASE Help If you answer this right I will mark you brainlist

liubo4ka [24]

Answer:

Hello! answer: 65

Step-by-step explanation:

This is a supplementary angle meaning it will add up to 180 degrees therefore... 180 - 115 = 65 therefore x = 65 hope that helps!

8 0

2 years ago

Read 2 more answers

United States facing a budget deficit of 1.5 billion, population was 3.9 million how much would each person have to contribute t

Diano4ka-milaya [45]

Answer:

Each person would have to contribute to contribute $385 to pay a 1.5 deficit.

Step-by-step explanation:

To determine:

How much would each person have to contribute to pay a 1.5 deficit if United States facing a budget deficit of 1.5 billion and 3.9 million population?

Fetching Information and Solution Steps:

United States facing a budget deficit of 1.5 billion
Population = 3.9 million

We have to determine how much would each person have to contribute to pay a 1.5 deficit.

Just dividing 1500 millions (1.5 billion) by 3.9 million as:

$\frac{1500}{3.9} =384.6153$

which is rounded to $385.

Therefore, each person would have to contribute to contribute $385 to pay a 1.5 deficit.

Keywords: deficit

Learn more about deficit from brainly.com/question/3638352

#learnwithBrainly

4 0

2 years ago

Five divided sixty eight

Schach [20]

5/68, or about 0.07

8 0

2 years ago

The library has 65,400 art books and 9,600 science book what part off all books are science books?

Mashcka [7]

9600/65400 = 0.147 (14.7%)

8 0

2 years ago