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
Makovka662 [10]
4 years ago
10

Can someone pls help? ab to fail geometry. any help is nice.

Mathematics
1 answer:
Mamont248 [21]4 years ago
7 0
By the law of cosines, the angle C satisfies

8.77^2=2^2+9^2-2\times2\times9\times\cos C

which reduces to

\cos C=0.2246\implies C=\arccos(0.2246)\approx1.34422\text{ rad}

which converts to approximately 77 degrees (this can be done my multiplying by 180 and dividing by pi).
You might be interested in
You received $112 in all selling paintings. You sold one painting for $27
Contact [7]

Answer:

5

Step-by-step explanation:

17x = 85

17x/17 = 85/17

x = 5

3 0
3 years ago
What is the answer to 2.50 divide into 21.50
Svetllana [295]

Answer:

0.11627907

Step-by-step explanation:

5 0
4 years ago
X^2 + 2x +3 find the indicated output for this function
slavikrds [6]
X^+5x would be the answer
4 0
3 years ago
Read 2 more answers
1.Parallelogram ACFD is split in two parts so that ABED and FEBC are congruent isosceles trapezoids. What are the measures of al
DiKsa [7]
Refer to the diagram shown below.

Because ACFD is a parallelogram, its opposite angles are equal. Therefore
x = m∠ACF = m∠BCF = 48°  
Similarly,
y = m∠CAD = m∠CFD 

The sum of the angles inside a parallelogram is 360°. Therefore
48° + x + y + y = 360°
Because x = 48°,
48° + 48° + 2y = 360°
2y = 360° - 96° = 264°
y = 132°

Because ABED and FEBC are congruent, therefore
y = m∠DAB = m∠CFE = 132°
x = m∠ADE = m∠FCB = 48°

Because FEBC is a parallelogram, the opposite angles are equal. Therefore
m∠CBE = m∠CFE = y = 132°
m∠BCF = m∠BEF = x = 48°

Answer:
The measures of all angles of trapezoid FEBC are
m∠BCF = 48°
m∠BEF = 48°
m∠CBE = 132°
m∠CFE = 132°

7 0
4 years ago
Please help me on this. It's due Monday...​
ipn [44]
He starts at -184 ft (since he is below the surface) and then goes up + 53 ft putting him at -131 ft.
-184+53=-131
Then he goes down another -168 feet to -299 ft.
-131-168=-299

So, he is currently at -299ft, or 299 feet below the surface.
7 0
3 years ago
Read 2 more answers
Other questions:
  • How to find the interior angles of a polygon
    10·1 answer
  • You have 6 reindeer, Rudy, Jebediab, Ezekiel, Lancer, Gloopin, and Balthazar, and you want to have 5 fly your sleigh. You always
    8·1 answer
  • 750% of it is 450 HELP
    5·1 answer
  • What do I do I need help
    12·1 answer
  • What the answer the answer it is due tomorrow plz help me
    11·1 answer
  • What is the asnwer for 1-1
    7·2 answers
  • Question Help
    13·1 answer
  • PLEASE HELP AND FAST
    10·1 answer
  • What is the value of the expression -8×3.4 ?
    8·1 answer
  • The data set shown below has an outlier. Determine the outlier and then answer the questions as to what happens to the median, m
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!