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GalinKa [24]
3 years ago
12

At a local park there is a large compass painted on the sidewalk. Blaine starts at due north and walks 150° in a clockwise direc

tion. Using the unit circle, find the sine value of his current position.
A) negative square root of 3 over 2.
B) square root 2 over 2.
C) one half.
D) negative one half.

Mathematics
1 answer:
Reika [66]3 years ago
7 0

Yo sup??

the angle is in 3rd quadrant.

we can say that

sin(90+150)

=sin(180+60)

=-sin(60)

=-3^(1/2)/2

Hence the correct answer is option A

Hope this helps

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The diameter of Mercury is approximately 4.9×103 kilometers. The diameter of Earth is approximately 1.3×104 kilometers. About ho
-Dominant- [34]
Hi there!

To get the answer to this question, let's divide the diameter of the Earth by the diameter of Mercury.

\frac{1.3*10^4}{4.9*10^3}

We can change this to

\frac{1.3}{4.9}*\frac{10^4}{10^3}

Let's solve for each individual fraction

\frac{1.3}{4.9} ≈ 0.27

\frac{10^4}{10^3} = 10

Now, multiply.

0.27 * 10 = 2.7

That's your answer.

Have an awesome day/night! :)

~collinjun0827, Junior Moderator
5 0
2 years ago
A pair of congruent angles are described as follows: The degree measure of one angle is three more than twice a number, and the
Fiesta28 [93]

Answer:

The measure of the angles in degree is 57.5 degrees

Step-by-step explanation:

If two angles are congruent, they are equal in value

Let the number be x

2x + 3 = 3x-54.5

Thus;

3x-2x = 54.5 + 3

x = 57.5

6 0
2 years ago
HELP!! 100 POINTS!!
NNADVOKAT [17]

Answer:

x=9 x=-1

Step-by-step explanation:

x²-8x-9=0    a=1 b=-8 c=-9

you have to use the quadratic formula to get the values.

5 0
3 years ago
Read 2 more answers
The cost of 5 kg of potatoes is £3.20
Tom [10]

Answer:

12kg=7.68

1.5=87

Step-by-step explanation:

I found the cost per kg

4 0
2 years ago
jenns age is 3 years less than marks age the sum of their ages is 30 let m be marks age find Jenna age
melamori03 [73]

Answer:

you could do 27+x=30

Step-by-step explanation:

7 0
3 years ago
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