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
hoa [83]
3 years ago
14

I dont know what I'm doing! could you help me​

Mathematics
1 answer:
photoshop1234 [79]3 years ago
8 0

Answer:

c = 24.34

Step-by-step explanation:

Here, we can use the cosine rule

Generally, we have this as:

a^2 = b^2 + c^2 - 2bcCos A

12^2 = 14^2 + c^2 - 2(14)Cos 19

144 = 196 + c^2 - 26.5c

c^2 - 26.5c + 196-144 = 0

c^2 - 26.5c + 52 = 0

We can use the quadratic formula here

and that is;

{-(-26.5) ± √(-26.5)^2 -4(1)(52)}/2

(26.5 + 22.23)/2 or (26.5 - 22.23)/2

24.37 or 2.135

By approximation c = 24.34 will be correct

You might be interested in
What is the social contract
hodyreva [135]
What do you mean by Social Contract?
5 0
2 years ago
3x+6y=24 turned into a graphing equation ​
Talja [164]

Answer:

Step-by-step explanation:

3x + 6y = 24

6y = -3x + 24

y = -3/6x + 24/6

y = -1/2x  + 4 <=====

5 0
3 years ago
Read 2 more answers
Determine the interquartile range for the data.<br> 16, 19, 25, 20,<br> 22, 21, 17, 20
Roman55 [17]

Answer:

the answer is 15 subtract the highest number from the lowest

5 0
2 years ago
I need help plsssssssss
Allushta [10]
I think the answer is maybe A?
8 0
3 years ago
A study of commuting times reports the travel times to work of a random sample of 1010 employed adults in Chicago. The mean is x
MrMuchimi

Answer:

standard error of the mean = 1.6960

Step-by-step explanation:

Given -

Mean (\overline{X}) = 53 minutes

Standard deviation ( s ) = 53.9 minutes

n = 1010

standard error of the mean  =  

\sigma _{\overline{X}}    =   \frac{s}{\sqrt{n}}

        = \frac{53.9}{\sqrt{1010}}

       =  1.6960

3 0
3 years ago
Other questions:
  • The equation a = 1/2(b1 + b2)h can be used to determine the area, a, of a trapezoid with height, h, and the base lengths, b1 and
    6·1 answer
  • 1 QUESTIONS BRAINLIESTTTTT ASAP!<br> EXPERTS!!
    12·1 answer
  • Hello can someone please help with this question.
    10·2 answers
  • Write the difference 20 - (-48) as a sum. Then simplify.
    9·1 answer
  • PLEASE HELP ASAP! PLEASE BE HONEST! ALGEBRA
    10·1 answer
  • A flower pot’s base has six sides that are all the same length. Each side measures x−6x-6 units. The base’s perimeter is 78 unit
    14·2 answers
  • What’s the mistake made in the steps to solve the equation below?
    7·1 answer
  • Write the phrase as an expression.<br> The product of 25 and 6
    15·1 answer
  • 25 POINT GIVEAWAY MONKE GANG​
    8·2 answers
  • Your grade.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!