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
kkurt [141]
3 years ago
8

Find MN to the nearest tenth? A. 11.34 B. 16.1 C. 39.6 D. 23.8

Mathematics
1 answer:
Nana76 [90]3 years ago
5 0

As the question say this problem is a practice of the law of cosines!

The law of cosine: c^2=a^2+b^2-2ab*cos*c for any side a, b and c

The law can also be written as c=sqrt(a^2+b^2-2abcosc)

Now use this formula!(note cos 100 degrees is about 0.8623)

c=sqrt(15^2+16^2-2*15*16*cos100)

solving this we can MN is about 23.75

Round this to the nearest tenths now!

We get 23.8!

Thus the answer is D

You might be interested in
Find the vertical component given that R = 42 lb. and = 80.<br><br> 41.36<br> 7.29<br> 59.45
valentina_108 [34]

Answer:

a

Step-by-step explanation:

3 0
3 years ago
An unknown fraction is between 0 and 1. Which is true about the equivalent percent and decimal?
pashok25 [27]

Answer:

The answer is C.

Step-by-step explanation:

The number between 0 and 1. Think of decimals as cents, 100 cents makes a whole. So the number will be greater than 0 but less than 100.

7 0
3 years ago
Will the solution of an equation such as x-3=9 be a variable on a number? Explain
KengaRu [80]

X= 12
Add three on both sides to get rid of it
9+3 and -3 + 3 the three is negative because you drop the minus sign down
This cancels out the three and 9+3 is 12 so X=12
8 0
3 years ago
H=k/j, for k hellllllllllllllppppppppppp
ss7ja [257]
I'm only answering because the app told me i need to help someone before I can ask another question, but I can't help because I don't know what to help you with so
8 0
4 years ago
Read 2 more answers
( 5.6 - 1.2 ) times 1/3 =
vladimir1956 [14]

Answer:

4.4* 1/3

4.4= 4 and 4/10 so 44/10*1/3= 44/30= 22/15

22/15

Step-by-step explanation:

6 0
3 years ago
Other questions:
  • 3x + 2 = 14 Which number makes the equation true?<br> A) 1 <br> B) 2 <br> C) 4 <br> D) 6
    14·2 answers
  • Mattie uses the discriminant to determine the number of zeros the quadratic equation 0 = 3x2 – 7x + 4 has. Which bestdescribes t
    15·1 answer
  • PLEASE WILL SOMEONE HELP ME? i WILL GIVE BRAINLIEST!!!
    12·1 answer
  • A chemist needs a 70% solution of tannic acid. How much distilled water must he add to 5 gallons of a 90% solution of acid to ob
    10·1 answer
  • -3.5 + x7= -5.2<br><br><br> pls answer
    8·1 answer
  • Given the following numbers: a = 12500000 b = 0.00125 c = 1120000​
    14·1 answer
  • Please help me in need of answer asap
    13·1 answer
  • Please help with picture below.
    6·1 answer
  • Find the product of 3x and x^2-4x+10 subtract x^3+7x^2-2x
    8·1 answer
  • 100 points + brainiest
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!