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
xeze [42]
2 years ago
12

Make cos C the subject of the formula C?= a? + b? - 2ab cos C

Mathematics
1 answer:
lara31 [8.8K]2 years ago
5 0
<h3>Answer:  Choice E</h3>

Work Shown:

c^2 = a^2 + b^2 - 2ab\cos(C)\\\\c^2 + 2ab\cos(C) = a^2 + b^2\\\\2ab\cos(C) = a^2 + b^2 - c^2\\\\\boldsymbol{\cos(C) = \frac{a^2 + b^2 - c^2}{2ab}}\\\\

You might be interested in
The number of marbles each sister gets when m marbles are shared equally among four sisters x = m/4
klasskru [66]

Answer:

m/4

Step-by-step explanation:

7 0
3 years ago
Need help please and thank you
PolarNik [594]

Answer: A. 70.50

Step-by-step explanation:

So 350*0.11 is 38.50. Add the $32.00 and you get $70.50

3 0
3 years ago
Read 2 more answers
Lois and Clark own a company that sells wagons. The amount they pay each of their sales employees (in dollars) is given by the e
liberstina [14]

Answer:

<h2><u>The amount paid to an employee was </u><u>162</u></h2>

Step-by-step explanation:

<h2><u>The expression 12h + 30w Identifies the amount paid to an employee.</u></h2><h2><u>Let h represent hours and let w represent the total amount of g-wagons sold. </u></h2><h2><u>Since the question explains that an employee works 6 hours and sells 3 wagons, put h as h = 6 and w as w = 3. We would end up getting this equation. 12h + 30w = 12(6) + 30(3).</u></h2><h2><u>Now all you need to do is solve it.</u></h2><h2><u>left side = 72</u></h2><h2><u>right side = 90</u></h2><h2><u>72 + 90 =</u><u> 162</u></h2>
6 0
4 years ago
Jackie loves to cook fried foods. She recorded the total amount of oil that she used each month in the table below.
Liula [17]
Answer

She used 6/15 litres of oil in January

Explanation

We are given that, in January, she used 3/5 of the amount of oil she used in February.

We are also given that, she used 2/3 litres of oil in February.

Therefore, amount of oil used in January is:

3/5 • 2/3 = 6/15

She used 6/15 litres of oil in January
8 0
4 years ago
Read 2 more answers
Shayla is baking muffins that require one-half cup vegetable oil. She only has one-third cup of vegetable oil left. How much mor
REY [17]
Well to make 1/3 and 1/2 equivalent fractions you need to find a common denominator. So it would be 6. 1/3 now becomes 2/6 and 1/2 becomes 3/6. So she would need 1/6 more cup of vegetable oil.
5 0
4 years ago
Other questions:
  • Anyone know how to do this?
    13·1 answer
  • An architect used this diagram to design a curved balcony. She drew a circle with a radius of 40 feet and a central angle of 70°
    9·1 answer
  • What is the measure in radians?
    10·2 answers
  • Adriana gather data and different schools winning percentages and the year average year salary of their head coaches is in milli
    6·2 answers
  • Naomi invested $4000 into a fund that is expected to grow by 5.53% per year. How long will it take the fund to be worth $8000?
    11·1 answer
  • You and your cousin are walking through the lunchroom when you both trip. Your trays hit the ground and both lunches fly through
    13·1 answer
  • What is the sum of the greatest number and least number formed by the digits 4,7,0and 9​
    13·1 answer
  • Tony drives 2 times the hours that Monique does. Tony and Monique drive for a total of 12 hours.
    7·1 answer
  • Find The Surface Area Of The Prism!
    12·2 answers
  • Find the equivalent measurement.
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!