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svet-max [94.6K]
3 years ago
6

PLEASE HELP ME! 8 POINTS!

Mathematics
1 answer:
Mrac [35]3 years ago
6 0

Answer:

720/1681

Step-by-step explanation:

First quadrant so everything is positive for a trig function of just the angle.  I would suggest just drawing a right triangle using tan(x)=40/9 (opp/adj). Find the hypotenuse which is sqrt(40^2+9^2)=sqrt(1600+81)=sqrt(1681)=41.  So sin(x)=40/41 and cos(x)=9/41.

Therefore sin(2x)=2sin(x)cos(x)=2(40/41)(9/41)=720/1681

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Diane has 496 beads and Linda has 286 beads.
julia-pushkina [17]

Answer: 210 fewer beads.

Step-by-step explanation: All you have to do is subtract the amount Diane has by Linda. And the answer you get is how many less beads Linda has. She has 210 fewer beads than Diane from 7ds (7ds is an anime lol and Diane is a character just a joke).

6 0
3 years ago
I NEED HELP ASAP, THAK YOU IN ADVANCED
german

1. If Sheryl works 6.5 hours in a day, she makes approximately 85 currency.

2A. If Sherly had not worked for a single hour, she would get no money.

If she worked for 1 hour, here wage would approximately be equal to 13 currency.

If Sheryl works 9 hours she will make approximately 117 currency.

Step-by-step explanation:

Step 1:

To calculate how much Sheryl makes if she works 6.5 hours a day, we check the graph to see what the y value of the graph is when x =6.5.

When x =6.5, the line falls on y = 85.

So if Sheryl works 6.5 hours in a day, she makes approximately 85 currency.

Step 2:

The two points on the graph are at (0, 0) and (1, 13).

This means that if Sherly had not worked for a single hour, she would get no money.

If she worked for 1 hour, here wage would approximately be equal to 13 currency.

These two statements explain the two points on the graph.

Step 3:

To calculate how much Sheryl makes if she works 9 hours, we must create an equation that represents how much money she makes.

If she earns approximately 13 currency an hour, her wage is y = 13x, where x is the number of hours worked and y is the wage.

When x =9, y = 9(13) = 117.

So if Sheryl works 9 hours she will make approximately 117 currency.

5 0
4 years ago
If 4C + 3 = 15, what is the value of C?
Soloha48 [4]
4c+3=15
You need to get rid of the 3
So you minus it from each side so you
4c=12
12/4=3
So c =3
4 0
3 years ago
Read 2 more answers
A scale on a map shows that 2.5 centimeters represent 15 kilometers.
MrRissso [65]

Answer:

cm for centimeters, km for kilometers.

 

If 2.5cm → 15 km, then

 17.5 cm → x km

 

x= (15km*17.5cm)/(2.5cm)=105 km

Step-by-step explanation:

4 0
3 years ago
Please please please please help
Dahasolnce [82]

Answer:

y=1

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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