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
Galina-37 [17]
2 years ago
11

A triangle has sides of length 3 cm, 5 cm, and 7 cm.

Mathematics
1 answer:
BlackZzzverrR [31]2 years ago
5 0

Answer:

C=120 degrees

Step-by-step explanation:

We can use the law of cosines to find an angle when we have all three sides

(7)^2 = (5)^2 + (3)^2 -(2)(5)(3)Cos(C)

49 = 25 +9 -30Cos(c)

49= 34 -30Cos(c)

15 = -30Cos(c)

Cos(c) = -1/2

C=120 degrees

You might be interested in
In the picture above, parallel lines p and q are cut by transversal line t. If the measure of angle 1 is 11x+7 and the measure o
Anton [14]

Answer:

-11

Step-by-step explanation:

6 0
2 years ago
Is 1.25 the same as 25%???????????????????????
Gelneren [198K]

Answer:

It depends on what your original amount is

Step-by-step explanation:

If the original value is 5, then yes 1.25 is 25% of five. If not, then they are not the same.

8 0
3 years ago
*Urgent*<br><br> Please help!!
satela [25.4K]

Answer:

5, 0

Step-by-step explanation:

3 0
2 years ago
Brainliest, 20 points
ohaa [14]

Answer:

B

Step-by-step explanation:

3 x -9 which is -27. Then you have to add the exponents, so it will be x^4+2 = x^6 , y^3+2 = y^5, z^1+2 = z^3. so your answer will be -27 x^6 y^5 z^3

5 0
2 years ago
Read 2 more answers
Surface area of cylinder = 2πrh
goldfiish [28.3K]
What is your question? I think you've got the correct answer.
8 0
3 years ago
Other questions:
  • Please help very easy, will brainly
    11·2 answers
  • If y=mx+b, the y-intercept is given by the value of m True or False
    9·2 answers
  • 5278 divided by 14 (25 points)
    8·1 answer
  • Missing numerator or denominator.<br> 1 / 2 = / 4
    8·2 answers
  • What is the x-intercept of the line with this equation, -2x +1/2y=18 (_,0) ,, and what are the x and y intercepts for y=1/4x-2
    7·1 answer
  • Convert to a decimal:<br> 5⁄10 = <br><br> (Do not round. Enter all decimal digits.)
    10·2 answers
  • A rectangle has length of 5.25 cm and area of 44.625 cm2. What does the length of the rectangle have to be?
    10·1 answer
  • Need help in math ASAP
    13·2 answers
  • Ella (E) is 4 years older than her friend Ava (A) who is 3 years younger than her sister
    12·1 answer
  • HELP MEE pleaseeeeeeee
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!