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Hatshy [7]
3 years ago
7

Why is the - sin of x the same as the sin of -x?

Mathematics
1 answer:
Neko [114]3 years ago
3 0

Answer:

Sine is an odd function and presents positive values in the 1st and 2nd quadrants and negative values in the 3rd and 4th quadrants.

Step-by-step explanation:

-sin(x) = sin(-x)

This property is valid because the sine trigonometric function presents positive values in the first two quadrants and negative values in the third and fourth quadrants. The sine function is an odd function with symmetry with respect to the origin, which means that sin(x) and sin(-x) will always present opposite signs.

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15 points! Thanks so much!!
Georgia [21]
For this question it is the difference of two perfect squares. This means your final answer will be (2x - 5)(2x + 5). This answer is not listed so it would be none of the above.

After review, B technically works because it is the difference of two perfect squares. This allows you to take the square root of each term while ignoring the sign and then place that back in with the original sign.
5 0
3 years ago
Read 2 more answers
A package of 4 pairs of insulated gloves cost 35.96
tino4ka555 [31]

Answer:

You need to add more to this question but I am assuming you want to know how much each pair of gloves is?

Step-by-step explanation:

Divide 35.96 by 4

35.96÷4= $8.99 per pair of insulated gloves

6 0
3 years ago
If Amir is running at a faster pace; 6.7 mph, to the nearest hundredth of an hour , after how much time will Amir catch up to sa
pickupchik [31]

Answer:

7

Step-by-step explanation:

6.7 rounds up to 7

6 0
3 years ago
a family went out to dinner and the bill was $113. If they want to leave a 19% tip, how much tip should they leave?
expeople1 [14]
In this problem there are several vital information's that have been given. Based on them it is possible to find the required answer.It is already mentioned that the amount of bill for the family is $113. Percentage of tips to be given is 19%
Then
The amount of tips given by the family = 113 * (19/100)
                                                               = 113 * 0.19
                                                              = 21.47
So the family should leave a tips of $21.47. Sometimes it could additionally be required to find the total amount that the family has to pay. In that case it is required to add the amount of tips with the billed amount.
7 0
3 years ago
5x+15=45 Solve for x..
just olya [345]

Answer: x=6

Step-by-step explanation:

5x+15=45

subtract 15 on both sides

5x=30

divide 5 on both sides

\frac{30}{5} =6

x=6

8 0
3 years ago
Read 2 more answers
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