1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Korolek [52]
3 years ago
12

Use the Law of Sines to find the measure of angle J to the nearest degree.

Mathematics
1 answer:
rjkz [21]3 years ago
8 0
\bf \textit{Law of sines}
\\ \quad \\
\cfrac{sin(\measuredangle A)}{a}=\cfrac{sin(\measuredangle B)}{b}=\cfrac{sin(\measuredangle C)}{c}\\\\
-----------------------------\\\\
\cfrac{sin(J)}{9.1}=\cfrac{sin(97^o)}{11}\implies sin(J)=\cfrac{9.1\cdot sin(97^o)}{11}
\\\\\\
\textit{now taking }sin^{-1}\textit{ to both sides}
\\\\\\
sin^{-1}\left[ sin(J) \right]=sin^{-1}\left( \cfrac{9.1\cdot sin(97^o)}{11} \right)
\\\\\\
\measuredangle J=sin^{-1}\left( \cfrac{9.1\cdot sin(97^o)}{11} \right)
You might be interested in
A country is considering raising the speed limit on a road because they claim that the mean speed of vehicles is greater than 30
kondaur [170]

Answer:

We conclude that speed is greater than 30 miles per hour.

Step-by-step explanation:

We are given the following in the question:  

Population mean, μ =  30 miles per hour

Sample mean, \bar{x} = 35 miles per hour

Sample size, n = 15

Alpha, α = 0.01

Sample standard deviation, s = 4.7 miles per hour

First, we design the null and the alternate hypothesis

H_{0}: \mu = 30\text{ miles per hour}\\H_A: \mu > 30\text{ miles per hour}

We use one-tailed(right) t test to perform this hypothesis.

Formula:

t_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{s}{\sqrt{n}} }

Putting all the values, we have

t_{stat} = \displaystyle\frac{35 - 30}{\frac{4.7}{\sqrt{15}} } = 4.120

Now, t_{critical} \text{ at 0.01 level of significance, 14 degree of freedom } = 2.624

Since,                  

t_{stat} > t_{critical}

We fail to accept the null hypothesis and reject it. We accept the alternate hypothesis and conclude that speed is greater than 30 miles per hour.

We calculate the p-value.

P-value = 0.00052

Since p value is lower than the significance level, we reject the null hypothesis and accept the alternate hypothesis. We conclude that speed is greater than 30 miles per hour.

6 0
3 years ago
Determine the measure of the interior angle at vertex C
vladimir1956 [14]

The measure of the interior angle at vertex C is D. 144.

<h3>How to calculate the angle?</h3>

Based on the information given, the angle will be calculated thus:

8x + 8x + 8x + 3x + 3x = (5 - 2) × 180

30x = 540

Divide both side by 30

30x/30 = 540/30

x = 18

Therefore, at vertex C, we have 8x. This will be:

= 8x

= 8 × 18

= 144

Learn more about angles on:

brainly.com/question/13007711

#SPJ1

5 0
2 years ago
Which quadrant of the coordinate plane has ordered pairs in the form of a positive number
Setler [38]

Answer:

Quadrant IV

Step-by-step explanation:

On the graph, the x-axis numbers are positive and the y-axis numbers are negative

8 0
2 years ago
Can you please help me with this I been stuck for a long time
yarga [219]

Answer:

Step-by-step explanation:

2.671 = (2.67 × 100)(1 × 100) = 267100. As the numerator is greater than the denominator, we have an IMPROPER fraction, so we can also express it as a MIXED NUMBER, thus 267100 is also equal to 267100 when expressed as a mixed number.

3 0
3 years ago
15. Robin ordered pizza and opted for delivery.
Ivenika [448]

Answer: No she'll need atlease 9 dollars

Step-by-step explanation:

48.95 x 18% is 8.811 which is greater than

4 0
2 years ago
Other questions:
  • Jane has a 5 × 7-inch photograph that she wants enlarged to a 10 × 14-inch photograph.
    10·2 answers
  • What is 29,678,900,522 in scientific notation?
    8·2 answers
  • I need help with these problems hdndjnfmsmf
    13·1 answer
  • The amount of bacteria in a Petri dish increases at a rate proportional to the amount present. At time t=0, the amount of bacter
    11·1 answer
  • HELP I NEED HELP WITH 1,2 and 8
    15·1 answer
  • Someone help me with this question please!!!!
    7·1 answer
  • 7. Carolina surveyed students about their
    14·1 answer
  • Oops I messed up on this one
    15·2 answers
  • GEOMETRY<br><br> *image is attached above*
    14·1 answer
  • Plz help asap brainiest if right
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!