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jarptica [38.1K]
2 years ago
6

Which expression is equivalent to sin(2x) cosx

Mathematics
1 answer:
Vsevolod [243]2 years ago
7 0

Answer:

2sin(x)cos^2(x)

Step-by-step explanation:

To solve the problem, you must expand the trigonometric expression using the information given.

sin(2x)cosx\\sin(2x)\\=2sin(x)\\=2sin(x)cos^2(x)

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Which is true about the volume or surface area of these prisms?
GrogVix [38]
The correct answer is B- The surface area of B is greater than the surface area of A. I got this answer because...

Figure A's Volume= 60

Figure B's Volume= 60 

Figure A's Surface Area= 104

Figure B's Surface Area= 248

So because the volumes are the same I knew it was not C or D, and then I solved the Surface Area for figures a and b and knew the correct answer is B.

Hope that helps. :)

3 0
3 years ago
The old man looked out, then beckoned frantically for Greg to follow him. For a moment Greg couldn’t move. Then he found himself
Effectus [21]

Answer:

i think its A?

Step-by-step explanation:

because he is warning greg?

4 0
3 years ago
Read 2 more answers
The table below describes the smoking habits of a group of asthma sufferers. If one of the 1156 people is randomly selected, fin
Rashid [163]

Answer:

0.554

Step-by-step explanation:

In the figure attached, the table is shown

Total people: 1156

Nonsmoker men + occasional smoker men + regular smoker men + heavy smoker men + heavy smoker women = men + heavy smoker women = 601 + 39 = 640

Probability that the person is a  man or a heavy smoker = 640/1156 = 0.554

(Notice that if you directly add heavy smoker and total men you will count twice heavy smoker men)

8 0
3 years ago
Someone pls show me
vlada-n [284]

Answer:

  x = 4

Step-by-step explanation:

An exterior angle of a triangle is equal to the sum of the remote interior angles.

  18x +5 = (46) +(-1 +8x)

  10x = 40 . . . . . . . . . . . . . subtract (5+8x) from both sides, simplify

  x = 4 . . . . . . divide by 10

__

<em>Additional comment</em>

The exterior angle is (18)(4) +5 = 77°. The marked unknown interior angle is -1+(8)(4) = 31°. The sum of the two remote interior angles is 46°+31° = 77°. The unmarked interior angle is 180°-77° = 103°.

7 0
3 years ago
!!!!!!!!!!!!!!!!!I could use some help please uwu!!!!!!!!!!!
PtichkaEL [24]

Answer:

Step-by-step explanation:

Just substitute in 7 for the n.

30-4(7)

30-28

2

The 7th term in the sequence is 2.

(please give brainliest?)

7 0
3 years ago
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