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
cluponka [151]
2 years ago
6

Pls help :Find the missing side or angle. Round to the nearest tenth.

Mathematics
2 answers:
Nitella [24]2 years ago
7 0

Answer:

C° = 71.6056

Step-by-step explanation:

Law of Cosines: c² = a² + b² - 2abcosC°

Step 1: Plug in known variables

29² = 30² + 15² - 2(30)(15)cosC°

Step 2: Evaluate

841 = 900 + 225 - 900cosC°

-59 = 225 - 900cosC°

-284 = -900cosC°

71/225 = cosC°

cos⁻¹(71/225) = C°

C° = 71.6056

And we have our answer!

ruslelena [56]2 years ago
3 0

Answer:

  79.0°

Step-by-step explanation:

The Law of Cosines is used for this purpose. It tells you ...

  a² = b² +c² -2bc·cos(A)

Solving for A gives ...

  cos(A) = (b² +c² -a²)/(2bc) = (15² +29²-30²)/(2(15)(29)) = 166/870

Using the inverse cosine function, we find the angle to be ...

  A = arccos(166/870) ≈ 79.00026°

  A ≈ 79.0°

You might be interested in
The slope of the tangent line to the curve x^3y+y^2-x^2=5 at the point (2,1) is
zheka24 [161]

Answer:

-4/5

Step-by-step explanation:

To find the slope of the tangent to the equation at any point we must differentiate the equation.

x^3y+y^2-x^2=5

3x^2y+x^3y'+2yy'-2x=0

Gather terms with y' on one side and terms without on opposing side.

x^3y'+2yy'=2x-3x^2y

Factor left side

y'(x^3+2y)=2x-3x^2y

Divide both sides by (x^3+2y)

y'=(2x-3x^2y)/(x^3+2y)

y' is the slope any tangent to the given equation at point (x,y).

Plug in (2,1):

y'=(2(2)-3(2)^2(1))/((2)^3+2(1))

Simplify:

y'=(4-12)/(8+2)

y'=-8/10

y'=-4/5

5 0
2 years ago
What is the sum of 56+64 writen as the product of its gcf and another sum
jenyasd209 [6]
<span>Look for the sum of 56 and 64, written as the product of its GCF and another sum.
First, let’s find the greatest common factor of both given numbers:
=> 56 = 1, 2, 4, 7, 8, 13, 28 and 56
=> 64 = 1, 2, 4, 8, 16, 32, and 64
Now, we need to find the greatest common factor between the two numbers. The GCF of the 2 numbers is 8.
=> 56 / 8 = 7
=> 64 / 8 = 8
=> 56 + 64 = 120
=> (8 x 7) + (8 x 8)
=> 56 + 64
=> 120.</span><span>

</span>



3 0
3 years ago
Ava wants to ride her bicycle more than 75 miles this week. She has already ridden her bicycle 16 miles. Which inequality could
Whitepunk [10]

Answer:

I think it may be  5m + 16 < 75

Step-by-step explanation:

I don't know if its wrong

6 0
3 years ago
The sum of two numbers is 25. their product is 154
kolbaska11 [484]
The two numbers are 14 and 11
7 0
3 years ago
Read 2 more answers
1. Tell whether each function is linear or not.
vovikov84 [41]
No no yes yes

please mark brainliest
7 0
3 years ago
Other questions:
  • Jordan lives seventeen miles away from school. This is one more mile than four times the distance Sally lives from school. How m
    13·2 answers
  • Owen is three years less than twice as old as his sister Sara if Owen is 13 how old is she
    9·1 answer
  • HELP PLEASE!!!!! OFFERING MANY POINTS!
    8·1 answer
  • How do you do x intercept
    9·2 answers
  • A puppy named Scout started out at 3 pounds and gained 1 pound every month. How heavy was Scout at 6 months old?
    5·1 answer
  • Point F(-17,8) is rotated 180° about the origin what are the coordinates of image f?
    5·1 answer
  • One year, a certain city experienced a
    7·1 answer
  • Please answer the following:
    11·1 answer
  • If you help me and explain to me how you got you’re answer you get Brainly
    12·1 answer
  • What is the length of segment bd
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!