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
Viefleur [7K]
3 years ago
14

Given: ΔABC; a= 10; b = 4, and c = 11. Find the measurement of ∠B to the nearest tenth of a degree.

Mathematics
1 answer:
AleksAgata [21]3 years ago
8 0
Use the Cosine Rule to find this

cos <B  = [b^2 - a^2 - c^2] /  -2ac 

               =  [ 4^2 - 10^2 - 11^2] / -2*10*11

               =   0.93182

so m < B  =   21.3 degrees to nearest tenth.  Answer
You might be interested in
What is the value of a, b, and c in the quadratic equation -2x^2+4x-3=0
amm1812
A = -2
b = 4
c = -3

They are the coefficients to the terms in the equation<span />
6 0
3 years ago
Read 2 more answers
The volume of a right cylinder is V = πr2h. If we have an oblique cylinder, like in the figure, what is the volume of a cross-se
olchik [2.2K]
Since you did not attach any picture we cannot say for sure what is the correct answer, but we can discuss the options in order to find the most probable correct answer.

First of all, according to the Cavalieri's principle, an oblique cylinder has the same volume as a right cylinder with the same base surface area and same height.
A cross-section of an oblique cylinder will be a small right cylinder with the same base surface area and a height as small as possible.

I guess the oblique cylinder has height h and it is divided into many (probably 10) cross-sections.

Option A: <span>πr2h
This is exactly the volume of the right cylinder, therefore, unless you are given a cross-section of height h (which would be too easy), this won't be the correct answer.

Option B: </span><span>4πr2h
This is 4 times the right cylinder. Again, here the height of the cross-section should</span> be 4h, but it doesn't sound like a possible data (too easy again).

Option C: <span>1 10 πr2h
Here comes a n issue with the notation: I think the right number you meant to write is (1/10)</span>·πr2h and not 110·<span>πr2h.
If I am right, this means that your oblique cylinder of height h is divided into 10 cross-sections, and therefore the volume of each of these cross-sections will be a tenth of the volume of the oblique cylinder, which means </span>1/10·<span>πr2h.

Option D: </span><span>1 2 πr2h
Here, we have the same notation issue as before. I think you meant (1/2)</span>·<span>πr2h.
Here, your oblique cylinder height h should be divided into only 2 cross-sections. Now, we said the cross-section's height should be the smallest as possible, so an oblique cylinder divided only into two pieces doesn't sound good.

Therefore, the most probable correct answer will be C) </span>(1/10)·<span>πr2h</span>
8 0
3 years ago
Read 2 more answers
Identify the slope and y-intercept of the line for each equation: y = 1/4x + 5
Tasya [4]

Answer:

the given equation is

y= 1÷4x +5

now,

slope = 1÷4

and

y intercept= - 5÷ 1÷4

= -5÷ 4

6 0
2 years ago
Tim buys 4 hats at $7.99 each. How much does he spend?
Sindrei [870]
Your answer should be $31.96 because when you multiply 7.99 by 4 that’s what your going to end up with.
8 0
3 years ago
Match all of the description to the term (Match all of the letters with the numbers).
Gnom [1K]
1. archaic

2. evangelists


3. Norman’s


4. John Wycliffe


5. Vulgar
6 0
3 years ago
Other questions:
  • Please help me with these five problems dont understand them
    5·1 answer
  • Negative six and one third plus twenty over three
    8·1 answer
  • 74 is what percent of180
    13·2 answers
  • Susan is riding her bicycle. She rides 25.6 kilometers in 2 hours. What is her speed?
    13·1 answer
  • I NEED IMMEDIATE HELP!!!!
    15·1 answer
  • If log 55 = 1.74 , what is the value of log1000 55 ?
    11·2 answers
  • If point A is between B and C then BA + AC = BC. always sometimes never
    14·2 answers
  • Please Answer No need for explanation but it would be nice Will gave thanks 5 star and brainlyest
    10·2 answers
  • The Science Club went on a two-day field trip. The first day the members paid $30 for transportation plus $10 per ticket to the
    6·1 answer
  • GEOMETRY ASSIGNMENT! HELP!!!! BRAINIEST ANSWER + POINTS!!! EXPLANATION IS NECESSARY! TY
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!