HELP!!

Mathematics

1 answer:

Leokris [45]2 years ago

6 0

Answer:

1/2

Step-by-step explanation:

Given:

sinx=-1/2

cosy=√3/2

finding x

x=sin^-1(-1/2)

x=-π/6

x=-30°

finding y

cosy=√3/2

y=cos^-1(√3/2)

y=π/6

y=30°

Now finding cos(x-y)

cos(-π/6-π/6)

=cos(-π/3)

=1/2!

You might be interested in

Solve for x. 13(x-3) = 39 X=1 X=4 x=6 x=10

Valentin [98]

13 factored out is 13x - 39 add 39 to both sides it equals 13x=78 and 78 divided by 13 is 6 the anwser is x=6

7 0

2 years ago

In ∆abc, m∠cab = 2x and m∠acb = x + 30. if line segment a b is extended through point b to point d, m∠cbd = 5x − 50. what is t

Allisa [31]

The answer is option "3, 40".

m∠cab = 2x
m∠acb = x + 30
m∠cbd = 5x − 50
Now,
m∠cab + m∠acb = m∠cbd
2x+x+30 = 5x-50
2x+x-5x = -50-30
-2x = -80
x = 40

7 0

2 years ago

With

Hatshy [7]

y - 2418.6 = 5.9(x - 54)
y - 2418.6 = 5.9x - 318.6
y = 5.9x + 2100
f(x) = 5.9x + 2100 (this is our function)
.
Now we can answer:
What is the weight of the plane with 26 gallons of fuel in its tank?
f(26) = 5.9(26) + 2100 = 2253.4 pounds
(Put me as brainiest!!!! <3)

3 0

3 years ago

Max is drawing plans for a garden, measured in feet, which is shown below on the coordinate plane. Max has two vertices of the g

Stella [2.4K]

Answer:

The other two vertices are (4 , -2) and (4 , 2)

4 0

2 years ago

Read 2 more answers

State whether the triangles are similar. If so, write a similarity statement and the postulate or theorem you used.

never [62]

Answer: