All categories

3 years ago

0 is in quadrant III and cos^2 0=1/4

Mathematics

1 answer:

Jlenok [28]3 years ago

5 0

Answer:

θ = 240

and

cos(θ) = -0.5

Step-by-step explanation:

Theta is in the third quadrant, that meansit goes from 180 to 270 degrees

Then,

cos^2 (θ) =1/4

cos (θ) = ± 1/2

θ = arccos(0.5)

θ = 60

But in the third quadrant

θ = 180 + 60 = 240

θ = 240

and

cos(θ) = -0.5

You might be interested in

In the adjoining figure cross out dissimilar one and represent the set formed by following method

Over [174]

Answer:

cross out 4

Step-by-step explanation:

explanation

3 0

1 year ago

Evelyn answered 42 questions correctly on her multiple choice history final and earned a grade of 21%. How many total questions

Thepotemich [5.8K]

Answer:

200 questions

Step-by-step explanation:

Given data

Let the total questions be x

so that

21% of x= 42 questions

let us solve for x

21/100*x= 42

0.21*x= 42

0.21x= 42

Divide both sides by 0.21

x= 42/0.21

x= 200 questions

Hence the questions are 200 questions

4 0

2 years ago

Which of the following equations could describe a square pyramid? Select all that apply.

Katena32 [7]

C. w= 3V/lh

D. V/B=h/3

E. V=w^2h/3

4 0

2 years ago

Can some solve this and explain how they solved it for both process

Step2247 [10]

Answer:

1=27 2= -1

Step-by-step explanation:

if three watermelons equal 60 divide that by 3 to get 20. 30 minus 20 will get you what the strawberries together make so divide by two to get 5. After subtract 5 from 3 to get -2 and since you did it in reverse think of it as a positive. So that equals 1. 20 + 1 + 7 is 27. For number two start at the bottom with the clovers since its only clovers.divide 12 by 3 to get 4. Then go up to the second equation 31-16 is 15. After divide by 3 and get 5. Then go to the next equation and do the same thing, add the sunflowers and then subtract the sum from both sides. 40 - 10 is 30. 30 divided by 3 is ten. After go to the last one. 5 - 10 + 4 is -1.

5 0

2 years ago

What is the equation of the translated function, g(x), if f(x) = x2? g(x) = (x + 5)2 + 2 g(x) = (x + 2)2 + 5 g(x) = (x – 2)2 + 5

ivann1987 [24]

Given the graph of the function f(x) which is described by a parabola with the vertex at (0, 0) and the graph of the translated function g(x) which is described by a parabola with the vertex at (5, 2).

Notice, that the vertex of the translated function is 5 units to the right and 2 units up of the graph of f(x).

Thus, g(x) is obtained by translating the function f(x) 5 units to the right and 2 units up.

Recall that given a function described by a parabola with vertex at (h, k) as
$f(x)=(x-h)^2+k$

A translation of a units to the right and b units up will result in
$f'(x)=(x-h-a)^2+k+b$

Therefore, the equation of the translated function, g(x) is given by
$g(x)=(x-5)^2+2$

9 0

2 years ago

Read 2 more answers