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
Crank
3 years ago
10

Find the measure of angle A

Mathematics
1 answer:
Mariana [72]3 years ago
5 0
Apply the law of cosines. and solve for A

14^{2} = 11^{2} + 11^{2} - 2(11)(11)cos(A) \\ 
196 = 121 + 121 - 242cos(A)  \\ 
-46 = -242cos(A) \\cos(A) = 0.1900826446

 A = 79.04239272, or 79

You might be interested in
What is the coefficient of q in the sum of (2/3q-3/4) and(-1/6q-r)?
Harlamova29_29 [7]

Answer:

The coefficient is \frac{1}{2}

Step-by-step explanation:

The given sum is

(\frac{2}{3}q -\frac{3}{4})+(-\frac{1}{6}q-r)

We can choose to add only the coeffients of q or simplify the whole sum.

=\frac{2}{3}q -\frac{1}{6}q-\frac{3}{4})-r)

We collect the LCM for the q terms;

=\frac{4-1}{6}q-\frac{3}{4})-r)

This will give us;

=\frac{3}{6}q-\frac{3}{4})-r)

Which is the same as

=\frac{1}{2}q-r-\frac{3}{4}

The coefficient is \frac{1}{2}

6 0
3 years ago
Read 2 more answers
Can someone please help me:)
cluponka [151]
Choice 2222222222222222222222222222222
4 0
3 years ago
What is the value of 7-3+(6-2•4)
defon

Answer:

2

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Factor the expression.
g100num [7]

Answer:

(x + 1) (3 x^2 + 1)

Step-by-step explanation:

Factor the following:

3 x^3 + 3 x^2 + x + 1

Factor terms by grouping. 3 x^3 + 3 x^2 + x + 1 = (3 x^3 + 3 x^2) + (x + 1) = 3 x^2 (x + 1) + (x + 1):

3 x^2 (x + 1) + (x + 1)

Factor x + 1 from 3 x^2 (x + 1) + (x + 1):

Answer:  (x + 1) (3 x^2 + 1)

6 0
3 years ago
David wants to install a fence fence around his garden. The garden is rectangular and has an area of 240 square feet. One side o
Ilya [14]
Find the length of each side 240÷12=20    20 is the other length. 
12•$18=$216   for the street side and 20+20+12=52  is the total length of the other sides 52•$15=$780  is the total cost of other 3 sides  780+216=996
the total cost is $996. Hope this helped
6 0
3 years ago
Read 2 more answers
Other questions:
  • What is 1.64 million rounded to the nearest million
    14·2 answers
  • How many planes can two distinct lines have in common
    13·1 answer
  • The volume of a 1968 ford mustang gt engine is 390 cubic inches"
    6·1 answer
  • Please help and show work!!
    7·1 answer
  • The endpoints of AB are A(9,4) and B(5,-4). The endpoints of its image after a dilation ar A(6,3) and B(3,-3). a. explain how to
    14·1 answer
  • The circle has a circumference of 453.26 what is the radius
    10·1 answer
  • Can somebody help plzzzz anyone
    7·2 answers
  • Which statement best defines perpendicular lines?
    8·1 answer
  • Please help asap thanks so much!
    8·1 answer
  • Find the solution set. 7x^2-5x-2=0
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!