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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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Find the diagonal of a rectangular frame which measures 77 in. by 36 in.
quester [9]

Answer:

Diagonal of a rectangular frame = 85 inch

Step-by-step explanation:

Given:

Length of rectangle = 77 inch

Width of rectangle = 36 inch

Find:

Diagonal of a rectangular frame

Computation:

Diagonal of a rectangle = √l² + b²

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7 0
3 years ago
Arthur hs 20/8 cups of dish wahing detergent, he uses 1/4 cup for each load, how many loads can he do​
scoray [572]

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Step-by-step explanation:

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2 years ago
Quadratic functions heeeeeellllppp
anzhelika [568]

Answer:

See below

Step-by-step explanation:

Remember that quadratic functions are parabolas when graphed.  The solutions are where the parabola crosses the x-axis.

1.   The vertex of the parabola in f(x) is (0, 9) which is above the x-axis and the parabola opens up.  So the parabola does not cross the x-axis.  Therefore the solutions are imaginary.

2.  The vertex of the parabola in g(x) is (9, 0) which is on the x-axis and parabola opens up.  Therefore, there is a double solution.

3.  The vertex of the parabola in h(x) is (-1, -9) which is below the x-axis and the parabola opens up.  Therefore, there are two real solutions.

I know this is a long explanation, but that is a way of looking at the problem.

6 0
3 years ago
Someone please help for brainiest and thanks.. No fake answers or you get reported
bagirrra123 [75]

Hello from MrBillDoesMath!

Answer:

12/5


Discussion:

Note that 10 is a common denominator of both denominators:

9/5 = (9*2)/(5*2) = 18/10

- ( -6/10) = + (6/10)

So the original problem is equivalent to

18/10 + 6/10 =

(18 +6)/10 =

24/10 =

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12/5 =

2 and 2 fifths =

22/5            (though this looks like (22)/5!)


Thank you,

MrB

6 0
3 years ago
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