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
kumpel [21]
3 years ago
12

Once again co sines . Please help me and include explanation with a clear answer

Mathematics
1 answer:
vladimir1956 [14]3 years ago
8 0

Using the law os cosines formula b^2 = a^2 + c^2 - 2*a*c*cos(B)

a = 17, b = 8, c = 16

8^2 = 17^2 + 16^2 - 2*17*16* cos(B)

64 = 289 + 256 - 544 * cos(B)

544*cos(B) = 289 + 256 - 64

544 * cos(B) = 481

cos (B) = 481/544

B = arccos(481/544)

B = 27.8 degrees

You might be interested in
BBC News had 6,632,512 viewers for its evening bulletin. <br><br> What is the place value of the 3?
VashaNatasha [74]
<span> 6,632,512

</span><span>the place value of the 3 is 30,000

hope it helps</span>
6 0
3 years ago
6.1 x -1 = ? <br> please help meeeeeeeee
timurjin [86]

Answer:

-6.1

Step-by-step explanation:

Hope this helps!

3 0
2 years ago
Ricardo took the following steps to simplify the expression below but was surprised to hear that his answer was incorrect. Which
Xelga [282]

You have not given us any of the steps that Ricardo took to simplify the
expression, and you also haven't given us the list of choices that includes
the description of his mistake, so you're batting O for two so far. 
Other than those minor details, the question is intriguing, and it certainly
draws me in.

If Ricardo made a mistake in simplifying that expression, I'm going to say that
it was most likely in the process of removing the parentheses in the middle. 

Now you understand that this is all guess-work, because of all the stuff that you
left out when you copied the question, but I think he probably forgot that the  3x 
operates on everything inside the parentheses.

He probably wrote that  3x (x-3)  is

either    3x² - 3
     or       x - 9x .

In reality, when properly simplified,

       3x (x - 3)  =  3x² - 9x .


3 0
2 years ago
What is the probability that the sun will not rise Tomorrow plz explain?
Luba_88 [7]

Answer:

the sun may rise or will not rise , so there are 2 chances

Step-by-step explanation:

so the probability is 1/2=0.5

6 0
2 years ago
Need help on this question too hard :((​
andrew-mc [135]

Answer:

2/3

Step-by-step explanation:

Convert the fractions to decimals.

2/3 = 0.666

4/5 = 0.8

14/18 = 0.777

34/50 = 0.68

From the decimals, 0.666 is the only option which falls between 0.5 and 0.75.

5 0
3 years ago
Other questions:
  • Solve for n. <br> n<br> ------------ = -2<br> n-12.168
    9·1 answer
  • HELP! What does X equal? WILL GIVE BRAINLIEST!
    6·1 answer
  • An object was measured to have a mass of 22.50 g and a volume of 9.45 mL. Divide the mass by the volume to determine its density
    11·1 answer
  • 3 groups of students went to the burger barn for a study break and snack. the first group ordered 4 burgers, 5 fries, and 7 drin
    7·1 answer
  • What is the unit rate of change of 8 units in d with respect to 3 units in t
    14·2 answers
  • Find the measure of angle ABC.<br><br> A. 124<br><br> B. 97<br><br> C. 56<br><br> D. 51
    7·2 answers
  • A tank can hold a maximum of 400 gallons of water. The volume of water when pumping water into the tank can be determined by the
    13·2 answers
  • x^2=6x+1 rewrite the equation by completing the square your equation should look like (x+a)^2=b or (x-c)^2=d
    8·1 answer
  • Write an example that represents the line.<br>Use exact numbers
    8·1 answer
  • A line goes through the points (4,5) and (2,-6). Write the equation of the line in point slope form
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!