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Sophie [7]
3 years ago
8

Find the following trigonometric values.

Mathematics
1 answer:
Alona [7]3 years ago
6 0

Answer:

\cos(150)\degree = -\frac{\sqrt{3}}{2}\\

\sin(150)\degree=\frac{1}{2}\\

Step-by-step explanation:

Formulae used:

cos (180°-θ) = -cos θ

sin (80°-θ) = sin θ

Therefore,

\cos(150)\degree = cos(180-30)\degree = -\cos(30)\degree = -\frac{\sqrt{3}}{2} \\\\\sin(150)\degree = sin(180-30)\degree = \sin(30)\degree = \frac{1}{2} \\\\

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Select all the true statements.
nexus9112 [7]

Answer:

i think its 1 and 2

4 0
2 years ago
Read 2 more answers
How many feet long is the fence ?
grandymaker [24]

Answer:

50 feet long

Step-by-step explanation:

Use the Pythagorean theorem to find the value of the missing side. The pythagoreon theorem only works with right triangles such as this one.

a²+b²=c²

Where a and b are length of legs (sides) of a triangle. And c is the length of the hypotenuse. The hypotenuse is the side across from the right angle.

We know by looking at the image posted in the question, that one leg of the triangle is 14 feet. And another leg is 48 feet. (Length of picnic area) (length of campground)

14²+48²=c²

Simplify

196+2304=2500

Find square root of 2500

√(2500)=50

So 14²+48²=50²

The missing side is 50 feet long. The fence is 50 feet long.

Attached is another example.

7 0
3 years ago
Max was on vacation twice as long as Jared and half as longas Wesley. The boys were on vacation a total of 3 weeks. How many day
lord [1]
Make an equation.
Also, convert 3 weeks into days ⇒ 3 · 7 = 21 days.

x + 2x + 4x = 21

x is Jared.
2x is Max (because half of 4 is 2).
4x is Wesley.

Now solve the equation.

7x = 21
x = 3

Jared = x
Max = 2x
Wesley = 4x

Jared = 3 days
Max = 2(3) = 6 days
Wesley = 4(3) = 12 days
4 0
3 years ago
Simplify a with the power of 0
nydimaria [60]
A ^ 0 = 1.

This is the final solution.
3 0
3 years ago
This is what I got,
USPshnik [31]
1/x + 1/y = 8
x + y = 8
6/x + 12/y = 72n
4 0
3 years ago
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