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
Nana76 [90]
3 years ago
5

Law of cosine find m<B a=11 b=12 c=17

Mathematics
1 answer:
Andrei [34K]3 years ago
3 0
Cos (B) = (a^2 + c^2 -b^2) / (2 * a * c)
cos (B) = (11^2 +17^2 -12^2) / (2 * 11 * 17)
cos (B) = (121 + 289 -144) / (374)
cos (B) = 266 / 374
cos (B) = <span> <span> <span> 0.7112299465
Angle B =  </span></span></span>44.665 degrees








You might be interested in
Using the following equation, find the center and radius:
il63 [147K]
The correct option is

The center is located at (1, 3), and the radius is 6. By making the given equation as in the general equation of the circle as following x^2 -2x +1+ y^2-6y+9=26+1+9 (x-1)^2+(y-3)^2=36=6^2 So, the coordinates of the center (1,3) And the radius=6
6 0
3 years ago
Read 2 more answers
What is the answer because my son is strugilling
ale4655 [162]

Try talking to him cause idk if I am wrong

7 0
2 years ago
Solve for x x3=8 = x=2 ,x=4,x=24,x=52
Hatshy [7]

x^3=8\to x=\sqrt[3]8\\\\x=2\ because\ 2^3=8

3 0
3 years ago
How do I find the midpoint
Hunter-Best [27]

To find the midpoint of a line use the midpoint formula which is M = (x1+x2/2 , y1 +y2/2) After plugging in the coordinates for your variables you should get (-1+5/2, -1+2/2) This simplifies to (2, 1/2) which is the coordinates for the middle point of the base XY.

5 0
2 years ago
ASAP PLZZZ The axis of symmetry for the graph of the function f start bracket x end bracket equals one-quarter x square plus b x
Lilit [14]

Answer:

b=-3

Step-by-step explanation:

The  given function is f(x)=\frac{1}{4}x^2+bx+10.

When we compare to ax^2+bx+=0, we have

a=\frac{1}{4} and c=10

The equation of the axis of symmetry of a vertical parabola is:

x=-\frac{b}{2a}

Also from the question the axis of symmetry is x=6

We substitute the values to get:

6=-\frac{b}{2*\frac{1}{4}}

6=-\frac{b}{\frac{1}{2}}

b=-\frac{1}{2}*6

b=-3

7 0
3 years ago
Read 2 more answers
Other questions:
  • Of five letters (a, b, c, d, and e), two letters are to be selected at random. how many possible selections are there
    8·1 answer
  • Find the sum of 67.008 and 3.8
    14·1 answer
  • Im stuck and i donnt want to get it wrong :( can someone help me please. What is the answer?
    5·1 answer
  • On a certain game show, a contestant must quess the price of a car within 1%
    5·1 answer
  • 7. A travel website wants to gauge the perceived quality of a major airport. The maximum possible rating is 10, and the results
    9·1 answer
  • 5) What does it mean if a system of equations has infinite solutions? *
    13·1 answer
  • Pls help!!!!!!!!!!!!!!!!!!!!!!!!!
    9·1 answer
  • Jeremie bought 5 pounds of bananas for $4.45. How much is 1 pound of bananas? Show or explain your reasoning
    9·2 answers
  • What is m angle A? Enter your answer in the box.​
    14·2 answers
  • The healthcare provider prescribes an IV solution of ampicillin 1 gram in 50 mL of DşW at 25 drops/minute. The nurse uses an inf
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!