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Anastaziya [24]
3 years ago
14

Omar wants to determine cos(- (2pi)/3) using the ratios of the 30 degrees - 60 degrees - 90 degrees right triangle . How shoulc

he use this information to determine cos(- (2pi)/7)
Mathematics
1 answer:
Zinaida [17]3 years ago
7 0

Answer:use the reference angle if a 30°and the fact that -2pi/3 is in the 3rd quadrant to determine coz

Step-by-step explanation:

i dont know if this is right just an educational guess, came here looking for the answer but couldn’t find it so

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Bc has endpoints b(5 ,9) and c(-4, -3). Find the coordinates of the midpoint of bc
Alex73 [517]
We can find the midpoint of any line segment using the midpoint formula: M=(x1+x2/2,y1+y2/2). Essentially, the midpoint formula finds the average of two points. If we use B and the first point and C as the second, when we plug in our values we would have M=(5-4/2,9-5/2). This can be simplified to M=(1/2,4/2) or M=(1/2,2) which is the final answer.

<span>I hope this helps.</span>
4 0
3 years ago
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Which of the following is equivalent to 5^-9
VLD [36.1K]
0.0000000005 9 zeros
4 0
3 years ago
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Please answer this correctly
Gnoma [55]

Answer:

3:30 pm

Step-by-step explanation:

Games : 1 hour

Cleaning : 1 hour

Homework: 30 minutes

Total time

1+1+ 30 minutes

She started at 1 pm

1 + 2 hour 30 minutes

1 +2 hours = 3 pm

3+30 minutes = 3:30

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3 years ago
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Five pounds is 2.268 times as heavy as one kilogram. How many times as heavy is two pounds than one kilogram?
Margarita [4]
5/2.268=2/x
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7 0
3 years ago
Given the function f(x) = 2x+4 and the domain: {-1,0,1},determine the range
Svetlanka [38]

Answer:

f(x) = 2x + 4 domains {-1, 0, 1}

range {2, 4, 6}

(please mark brain if this helps and is correct)

Step-by-step explanation:

to solve f(x) to find the range you would want to input all the domain numbers in the equation f(x) to get the range of all the numbers you need

step 1: take the first domain number and input it into your equation where x is

ex: 2x + 4   [2(-1) + 4] = -2 + 4 = 2

step 2: add the second domain number and input it into your equation where x is

ex: 2x + 4   [2(0) + 4] = 0 + 4 = 4

step 3: add the last domain number and input it into your equation where x is

ex: 2x + 4   [2(1) + 4] = 2 + 4 = 6

Now we have determined what the range is

6 0
3 years ago
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