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Advocard [28]
3 years ago
7

Evaluate: sin (225degree)

Mathematics
1 answer:
PtichkaEL [24]3 years ago
7 0
Sin(225)

225 degrees is in the 3rd quadrant.  And in the third quadrant only tangent is positive,  sin is negative.

For third quadrant, basic angle = 225 - 180 = 45

sin225 = - sin45

sin225 = - sin45 = -0.7071

sin 225° ≈ -0.7071 
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Answer asap please!!
skad [1K]
Answer is B. 11. The square root is roughly 10.5, so you round up and get 11
5 0
3 years ago
Need help on this question Plzzz​
stepladder [879]

Answer:

  • B. -9, -5, -1

Step-by-step explanation:

<u>Solve the inequality:</u>

  • - a + 1/3 > 1/4
  • a < 1/3 - 1/4
  • a < 4/12 - 3/12
  • a < 1/12

Correct choice is B

4 0
2 years ago
(c) One lorry travels from your town to another town. The lorry reaches a top speed
Katen [24]

Answer:

The average speed is 24 km/h less than the top speed of the lorry.

Step-by-step explanation:

The top speed of the lorry is the highest speed reached during transit, while its average speed is the mean speed attained

Given:.

Top speed of the lorry = 90 km/h

Average speed of the lorry = 66 km/h

Then,

The difference between the speed reached = top speed - average speed

                                            = 90 - 66

                                            = 24 km/h

Therefore, the average speed is 24 km/h less than the top speed of the lorry.

8 0
3 years ago
URGENT Two numbers have a sum of 2 and a difference of -16. What are the numbers?
Firlakuza [10]

Answer:

-7 and 9!

Step-by-step explanation:

To get to the sum of 2 you add -7 and 9.

To get to the diffrence of -16 you minus -7 and 9.

6 0
3 years ago
Read 2 more answers
Compare the two functions in the table. Will the value of function y = 2x eventually exceed the value of function y = x10?
Andrew [12]
First we rewrite the functions:
 y = 2x
 y = x ^ 10
We note that the second function always has values of y greater than the first function. However, there is a value of x for which the first function is greater.
 For x = 1 we have:
 y = 2 (1) = 2
 y = (1) ^ 10 = 1
 We note that:
 2> 1
 Answer: 
 Yes, the value of function y = 2x eventually exceed the value of function y = x ^ 10.
5 0
3 years ago
Read 2 more answers
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