HELP WILL GIVE BRAINLIEST FOR ANSWER QUICKLY PLEASE HELP

Mathematics

1 answer:

Helen [10]2 years ago

5 0

Answer:

We have sinθ = 12/13

The method here is to figure out the value of θ

Using a calculator sin^(-1)(12/13) =67.38°

67.38° is in quadrant 1 so we must substract 67.38° from 180° wich is π

180-67.38= 112.61° ⇒ θ= 112.61°

Now time to calculate cos2θ and cosθ using a calculator

cosθ = -5/13
cos2θ = -0.7

The values we got make sense since θ is in quadrant 2 and 2θ in quadrant 3

You might be interested in

A class of 28 students has 12 girls. What is the ratio of girls to boys

DochEvi [55]

Answer:

3 girls for every 4 boys

Step-by-step explanation:

Number of girls = 12

Number of boys = 28 - 12 = 16

The ratio of girls / boys = 12/16 = 3/4

8 0

3 years ago

if a cat would dance for 412 hours without getting tired how many hours can a total of 7 cats dance for

koban [17]

58.8 I divided 412/7 and it gave me a decimal and random numbers :(

6 0

2 years ago

Graph the equation y= 1/2 + 4

Alika [10]

I can’t really graph on this but place a dot on the four on the y axis and go up one and over two and place a dot there. just keep repeating it till u get to the end of the graph :)

8 0

2 years ago

A. A newborn red panda weighs 100 grams. A

77julia77 [94]

Answer:

$y=100\cdot (1.07)^d$

Step-by-step explanation:

Find the expression to represent how much you would expect a cub to weigh $d$ days after it's born as exponential growth function $y=a\cdot b^d,$ where $a$ is the initial panda's weight and $b$ is the rate of growth.