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
Elenna [48]
4 years ago
9

What is the value of b?

Mathematics
1 answer:
tresset_1 [31]4 years ago
8 0

Answer:

17

Step-by-step explanation:

Using the law of cosines in ΔABC

b² = a² + c² - (2ac cosB) ← substitute in values

   = 25² + 28² - (2 × 25 × 28 × cos36.9°)

   = 625 + 784 - 1400 cos36.9°

   = 1409 - 1400 cos36.9° ( Take the square root of both sides )

b = \sqrt{1409-1400cos36.9} ≈ 17 ( nearest whole number )

   

You might be interested in
Can you find the measure of b plz
lozanna [386]

Answer:

b=53 degrees

Step-by-step explanation:

90 degrees - 37 degrees = 53 degrees

4 0
3 years ago
What’s four plus twenty eight
scZoUnD [109]
4+28= 32 
Think of it as you have 28 apples and someone gave you 4 how many would you have

6 0
3 years ago
Please help me, thanks if you do
Olenka [21]

Answer:

y= -28

Step-by-step explanation:

x -y = 11

if x= -17 then substitute x for -17

-17 -y = 11; add 17 to both sides

-17 + 17 -y = 11+ 17; combine like terms

-y = 28; multiply both sides by -1

y= -28

3 0
3 years ago
Read 2 more answers
What is an equivalent ratio for 2 gallons and 3 quarts
In-s [12.5K]
The equivalent is 2/3.
4 0
3 years ago
Read 2 more answers
Which shapes can the composite figure be divided into to find the area?
GrogVix [38]
A rectangle and two triangles
3 0
3 years ago
Other questions:
  • Please help with both questions AND SHOW ALL WORK please thank you. :)
    13·2 answers
  • She has 12
    5·1 answer
  • Help..................
    14·2 answers
  • If an airplane travels 110 mph for 5 hours, what is the total distance traveled?
    8·1 answer
  • 3. Danielle sorted her marbles into 8 groups. She put 3 red marbles, 3 blue marbles, and 2
    8·1 answer
  • Drake needs to drill holes in a wooden plank. The holes will have a diameter of 0.5 millimeters, with an error allowance of 0.05
    6·1 answer
  • A local fast-food restaurant can serve
    12·1 answer
  • Pleaseeeee helppppp I’ll mark you brainlist
    15·1 answer
  • Please find the m∠DEY
    7·1 answer
  • What is the reason for statement 7 in the given proof? A. definition of midpoint B. definition of slope C. Parallel lines have e
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!