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
matrenka [14]
3 years ago
14

A triangular field has sides of lengths 21, 39, and 41 yd. Find the largest angle. (Round your answer to the nearest degree.)

Mathematics
1 answer:
Ksenya-84 [330]3 years ago
5 0

Answer:

80 degrees

Step-by-step explanation:

To start, use the fact that the largest angle is the opposite of the longest side. Now, use the Law of Cosines (a^2 = b^2 + c^2 - 2bc cos A), where a is the longest side and A is its opposite, and b and c are the other sides. Plug the values in to get 1681 = 1962 - 1638 cos A, or cos A = 281 / 1638. Now, use a calculator to get that A is approximately 80.12 degrees, or 80 degrees.

You might be interested in
PLEASE I AM MARKING BRAINLEST!
Artemon [7]

Answer:

5, 9,13,17

Step-by-step explanation:

5 +4 +4+4

8 0
2 years ago
Read 2 more answers
Choose the correct description of the graph of the compound inequality x − 1 less than or equal to 9 or 2x greater than or equal
DerKrebs [107]
X - 1 < = 9         or         2x > = 24
x < = 9 + 1                    x > = 24/2
x < = 10                        x > = 12

closed circle on 10, shaded to the left
closed circle on 12, shaded to the right

________10_______12__________
       <====X                 X======>
the X represents closed circles
8 0
3 years ago
HELPPP MEHHHHHHHHH!!!:(
Lady bird [3.3K]

Answer:

1

Step-by-step explanation:

Rounding 5 to the nearest tenth would give you 1 and adding 1 to 9 would give you 10 which would 10 tenths which is 1

6 0
3 years ago
Read 2 more answers
Hallie bikes 1 5/8 km before lunch and 6 1/4 km after lunch. How much farther does Hallie bike after lunch than before lunch? Ex
EleoNora [17]

Answer:

4 \frac{5}{8} km

Step-by-step explanation:

To find how much farther Hallie biked after lunch compared to the amount she biked before lunch, we can subtract the amounts:

6 \frac{1}{4}-1\frac{5}{8}

However, we can only subtract fractions that have the same denominator, so we need to convert \frac{1}{4} to a fraction with a denominator of 8:

\frac{1}{4}=\frac{2}{8}

Now, we can't subtract 2 from 8, so we need to 'borrow' from the 6 to make the fraction larger:

6\frac{2}{8}=5\frac{10}{8}

Now subtract: 5\frac{10}{8}-1\frac{5}{8}=4\frac{5}{8}

4 0
3 years ago
Alan sells electronics, earning a base wage of $320 for one week, and a commission equal to 5% of his sales. he needs to earn at
aksik [14]

Answer:

  • 320 +0.05s ≥ 600
  • sales ≥ $5600

Step-by-step explanation:

For sales of 's', Alan's earnings will be ...

  320 +0.05s

He wants that to be at least 600, so the inequality is ...

  320 +0.05s ≥ 600

__

Its solution is found by subtracting 320 and dividing by 0.05.

  0.05s ≥ 280

  s ≥ 5600

Alan's weekly sales must be at least $5600 for his earnings to cover his expenses.

5 0
3 years ago
Other questions:
  • Which statement is true? The initial height of the ball is 96 feet. The ball will hit the ground between 2 and 3 seconds after i
    15·2 answers
  • the spring musical sold student tickets for $8 and adult tickets for $10. there were 130 tickets sold for a total of $1198. how
    12·2 answers
  • What might a model for 3 x 3/5 look like? How many fifths would be shaded in all?
    13·1 answer
  • Solve the proportion do not include the variable<br><img src="https://tex.z-dn.net/?f=%20%7B3%7D%7Bx%20%2B%204%20%5C%7B4%7D%7B2x
    15·2 answers
  • The Triangle Shirtwaist fire: a. resulted in laws that banned all manufacturing in New York. b. occurred during the Uprising of
    11·1 answer
  • Calculate the slope of the graph below. Write your answer into the blank, m=​
    6·2 answers
  • What is the sum of the first 30 terms of the sequence an=6n+5
    5·1 answer
  • -Which expression represents the phrase "twenty-three less than a number"? (Think about this one!)
    10·2 answers
  • What is the answer to this?
    14·1 answer
  • I need help on this and I don't know how to do this.<br><br> Please Help
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!