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german
3 years ago
12

24^2= 20^2+34^2-2(20)(34)cos(Q)

Mathematics
1 answer:
Vanyuwa [196]3 years ago
3 0

Answer: 50 degrees.

Step-by-step explanation:

To find the measure of the angle Q, you need to follow these steps:

- Knowing that:

-980= -(1,360)cos(Q)

You can divide both sides of the equation by -1,360:

\frac{-980}{-1,360}=\frac{-1,360cos(Q)}{-1,360}\\\\\frac{49}{68}=cos(Q)

- Finally, using  the inverse function of the cosine, Arccosine, we get:

Q=Arcos(\frac{49}{68})\\\\Q=49.89\°

To the nearest whole degree, this is:

Q=50\°

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Answer:

148.5

Step-by-step explanation:

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3 years ago
What is the value of "h"?
kotegsom [21]

Answer:

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Step-by-step explanation:

2 + h - 48 = 30

h + 2 - 48 = 30

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4 0
3 years ago
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Sin x= 1.5<br> value of x
alina1380 [7]

Answer:

x = π - sin^(-1)(3/2) + 2 π n_1 for n_1 element Z

or x = 2 π n_2 + sin^(-1)(3/2) for n_2 element Z

Step-by-step explanation:

Solve for x:

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3 0
4 years ago
500 tickets were sold for a game for a total of $862.50. If adult tickets sold for $2.00 and children's tickets sold for $1.50,
Alexxandr [17]
You can work these in your head if you consider the revenue generated by the least contributor (children's tickets) and the difference in revenue between that and the larger contributor ($2.00 -1.50 = 0.50).

If all were children's tickets, the revenue would be 500*$1.50 = $750.00. The actual revenue exceeded that amount by $862.50 -750.00 = 112.50. This difference in revenue is made up by the sale of $112.50/$0.50 = 225 adult tickets. Then the number of children's tickets is 500 -225 = 275.

225 adult tickets were sold
275 children's tickets were sold.

_____
If you need an equation, you can write an equation using a variable for the number of adult tickets sold (the largest contributor).
.. (500 -a)*1.50 +a*2.00 = 862.50
.. 0.50a = (862.50 -750.00) . . . . . does this look familiar, yet?
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3 years ago
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julsineya [31]

Answer:

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2x-8=4(x+1)

Distribute

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Subtract 2x

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Divide by 2

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3 years ago
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