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wel
2 years ago
9

Find the measure of angle J, the smallest angle in a triangle with sides measuring 11, 13, and 19. Round to the nearest whole de

gree

Mathematics
2 answers:
olya-2409 [2.1K]2 years ago
8 0

Answer:

<h2>34°</h2>

Step-by-step explanation:

We need to use the law of cosines to find angle J.

11^{2}=19^{2}  +13^{2} -2(19)(13)cos(J)\\121=361+169-494cos(J)\\121=530-494cos(J)\\121-530=-494cos(J)\\-409=-494cos(J)\\cos(J)=\frac{-409}{-494} \approx 0.8\\ J \approx cos^{-1}(\frac{409}{494} ) \approx  34\°

Therefore, the right answer is the second choice, 34°.

Remember, when you apply the law of cosines, the first square in the formula must be the opposite side to the angle we want to find.

8090 [49]2 years ago
5 0

Answer:

34 degrees

Step-by-step explanation:

hope this helps

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In the metric system, you give a name to the following multiples: 10, 100, 1000, 0.1, 0.01, 0.001, and then you skip three places. So, you have

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3 0
3 years ago
Please help me!<br> Find the value of x
Ira Lisetskai [31]

Answer:

x = 30

Step-by-step explanation:

So we're going to start by finding the other angles of the triangle which x is part of. So we know that a line adds up to 180 degrees. So we can find the angle that's close to N. If you know which one I'm talking about.

105 + 45 = 150. So then we can subtract 150 from 180

180 - 150 = 30

And for the angle at angle L, it's also 90 degrees.

So we know that the angles that add up so far are 120.

Now we'll make an equation:

2x + 120 = 180

Because all angles of a triangle add up to 180

So we subtract 120 from both sides

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7 0
2 years ago
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What is 75.2515 rounded to the nearest tenth ?????
Nataliya [291]

The answer would be 80.

6 0
3 years ago
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Please help me(20 points will give brainliest!!!)
goblinko [34]

Answer:

A. Vertex is ( -1, 16)

B. Do they mean y-intercept for vertical intercept? That is (0,14)

C. X-intercepts are

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Step-by-step explanation:

plug the equation into desmos. It will graph and give you the info.

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kobusy [5.1K]

The ticket price which will maximize the student's council is: C. $3.10.

<h3>What is price?</h3>

Price can be defined as an amount of money which is primarily set by the seller of a product, and it must be paid by a buyer to the seller, so as to enable the acquisition of this product.

Based on the information provided about Valley High School student council, we can logically deduce the following data:

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  • Lowest ticket price = $2.00.
  • Increase in ticket price = $0.20.
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<h3>How to determine the ticket price?</h3>

Mathematically, the equation which model the profit is given by:

Profit = price × number of tickets sold

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P(x) = 840 + 84x - 40x - 4x²

P(x) = -4x² + 44x + 840.

For any quadratic equation with a parabolic curve, the axis of symmetry is given by:

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Ticket price for maximum profit is given by:

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Ticket price = 2 + 0.2(5.5)

Ticket price = $3.10.

Read more on maximized profit here: brainly.com/question/13800671

#SPJ1

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