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
DENIUS [597]
2 years ago
14

Hey all!

Mathematics
1 answer:
Rainbow [258]2 years ago
8 0

Answer:

  • 65°

Step-by-step explanation:

<u>Use the law of cosines:</u>

  • cos C = (25² + 27² - 28²)/(2*25*27)
  • cos C = 0.4222
  • m∠C = arccos 0.4222
  • m∠C = 65°
You might be interested in
Two friends Ana and Juan are buying books by joining the History Book
Travka [436]

Answer:

Ana  spent $17  per book on average.

Juan  spent $14.78  per book on average.

y = $15 + 17x--------- equation 1

y= $10 + 14.78 x------------- equation 2

Step-by-step explanation:

Ana has to pay a yearly fee of $15 to join.

She spends a total of $525 for 30 books.

The amount spent on books = Total amount - yearly fee

                                                 = $525- $15= $510

Price per book on the average = $510/30= $ 17

Ana  spent $17  per book on average.

Juan has to pay a yearly fee of $10 to join.

He spends a total of $350 for 23 books.

The amount spent on books = Total amount - yearly fee

                                                 = $350- $10= $340

Price per book on the average = $340/23= $ 14.78≅ $15

Juan  spent $14.78  per book on average.

The function can be established if y gives the total cost and x gives the number of books

y = $15 + 17x--------- equation 1

y= $10 + 14.78 x------------- equation 2

Juan has a better deal because the yearly fee is less also the price per book is less.

8 0
3 years ago
7 thousands 4 tens divided by 10
Bezzdna [24]

Answer:

704

Step-by-step explanation:

7000 + 40  (7 thousands + 4 Tens) Divide that by 10.

7040/10 = 704

6 0
3 years ago
Read 2 more answers
What is the area of a circle whose radius is 4 ft?
Dmitriy789 [7]
Use this equation: A=3.14159r^2
6 0
3 years ago
Read 2 more answers
If 3x-8=-2 fins the value of x-6
adell [148]

Steps to solve:

3x - 8 = -2; x - 6

~Substitute

3(x - 6) = -2

~Distribute left side

3x - 18 = -2

~Add 18 to both sides

3x = 16

~Divide 3 to both sides

x = 16/3

Best of Luck!

7 0
3 years ago
Which measure of center best represents the data?<br><br> 8,8,7,8,8,8,1,8,8
ehidna [41]

Answer:

8

Step-by-step explanation:

The median is 8 since 8 is the most common number

4 0
2 years ago
Read 2 more answers
Other questions:
  • The cost CC (in dollars) for the care and maintenance of a horse and carriage is C=15x+2000C=15x+2000, where xx is the number of
    15·1 answer
  • Write an equation in slope intercept form for the line that passes through (2,-2) and is parallel to y=-5/2x+5
    6·1 answer
  • The amount of money paid out of earnings that is divided among shareholders.
    6·1 answer
  • Mr. Yoshi has 75 papers. He graded 60 papers and he had a student teacher grade the rest. What percent of the papers did each gr
    14·1 answer
  • What is the independent variable of an equation?
    14·1 answer
  • Can u please answer this question now I will mark ur answer and get u 20 pts (click me)
    11·1 answer
  • What is 20 times 3/5 in simplest form?
    10·2 answers
  • 1 The ages of three cats are a, a + 4 and 2a - 3.<br> Their total age is 21. Determine a.<br> ?
    13·1 answer
  • A BUSHEL OF APPLES WEIGHS ABOUT 42 POUNDS. THERE ARE 4 PECKS OF BUSHELS. IT TAKES 2 POUNDS OF APPLES TO MAKE ONE PIE. HOW MANY P
    9·1 answer
  • Have an amazing day :) <br><br> Will give brainlst
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!