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motikmotik
3 years ago
6

(Sin5A/sina)-(cos5A/cosA)=4cos2A

Mathematics
1 answer:
Sonja [21]3 years ago
8 0
Is there any way you could explain this to me?
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Simplify:(4x2 - 2x) - (-5x2 - 8x).<br> yall dont gotta simplify this im just bored
jeka57 [31]

Answer:

wsp?

Step-by-step explanation:

9x^2 + 6x

4 0
3 years ago
At 8am,Ming Wei started travelling from Town A to Town B.At 8:40am, Ali started travelling from Town B to Town A.Mingwei's speed
Vesnalui [34]
Let's write some equations.

Mingwei's distance from Town A after x hours from 8:00 is 45x.

Ali's distance from Town B after x hours is 30x-20, since he doesn't start walking for 40 minutes.

When Mingwei's distance is twice Ali's, they've met up (since their distance from Town A is twice their distance from Town B).

So, this gives 45x=60x-40, so 15x=40, so x=\frac{40}{15} = \frac{8}{3}, so the time is 10:40.

After \frac83 hours, Mingwei has traveled 45 * 8 / 3 = 120 kilometers while Ali has traveled sixty, so the distance between the towns is 180 kilometers.
7 0
3 years ago
Help would be greatly appreciated!Which equation is true?
Serga [27]

Answer:

Step-by-step explanation:

(edit):

lol this post was an accident, mb

5 0
2 years ago
A boat traveled 27 miles in 2 hours. At this, how many miles will the boat travel in 1/2 hour?
Fantom [35]
You do distance over time to get the rate, so you'd do 27/2= 13.5mph then divide that in half since you're asking for the distance traveled in half that hour so you do 13.5/2 and you get 6.75 miles traveled in half and hour.
4 0
3 years ago
6x^3 +8x^2 – 4x<br> I need help now ‼️‼️‼️‼️‼️‼️
Vinvika [58]

Answer:

Are there any answers??

Step-by-step explanation:

5 0
3 years ago
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