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
Anettt [7]
3 years ago
8

Solve the right triangle ABC with right angle C if B = 30° and c = 10.

Mathematics
1 answer:
mart [117]3 years ago
6 0

Step-by-step explanation:

Answer:


Last choice is correct.


Step-by-step explanation:


Given that ∠C=90°, ∠B=30°, c=10


We know that sum of all angles in a triangle is 180 degree.


∠A+∠B+∠C=180°


∠A+∠30°+∠90°=180°


∠A+∠120°=180°


∠A=60°


Now we can use sin or cos whichever applicable to find missing sides


2b=10


b=5


Similarly


a=8.6602


Hence last choice is correct.

You might be interested in
A TV set contains five circuit boards of type A, five of type B, and four of type C. The probability of failing in its first 500
nekit [7.7K]

Answer:

0.903264

Step-by-step explanation:

Given that a TV set contains five circuit boards of type A, five of type B, and four of type C. The probability of failing in its first 5000 hours of use is 0.03 for a type A circuit board, 0.04 for a type B circuit board, and 0.03 for a type C circuit board.

Let A' = the event that A fails, B' =  B fails and C'= C fails.

Probability that no circuit board fails = Prob (A'B'C')

= P(A')P(B')P(C')  (since A,B, C are independent, their complements are independent

= (1-0.03)(1-0.04)(1-0.03)

= 0.903264

8 0
3 years ago
Rewrite the equation by completing the square.<br>x^2-2x+1=0​
kaheart [24]

Answer:

(x - 1)² = 0

Step-by-step explanation:

Given

x² - 2x + 1 = 0 ( subtract 1 from both sides )

x² - 2x = - 1

To complete the square

add ( half the coefficient of the x- term )² to both sides

x² + 2(- 1)x + 1 = - 1 + 1

(x - 1)² = 0

5 0
3 years ago
Each square is one square unit. Sienna uses the same square units to draw a 6 x 2 rectangle and says that it has the same area a
Grace [21]

Answer:

Yes, Sienna is correct because 6 times 2 is 12 and 3 times 4 is 12.

3 0
3 years ago
Martina's fish tank has 15 liters of water in it. She plans to add 5 liters per minute until the tank has at least 55 liters. Wh
Black_prince [1.1K]

Answer:

every 5 minutes ....

Step-by-step explanation:

3 0
2 years ago
The last rest area you spent $3.25 on water bottles, $11.00 on snacks, and $4.00 on a magazine, and gave the cashier $20.00 How
photoshop1234 [79]

Answer:

You spent 18.25, and got 1.75 in change

Step-by-step explanation:

3.25 + 11 + 4 = 18.25

20.00 - 18.25 = 1.75

6 0
2 years ago
Read 2 more answers
Other questions:
  • Help me please if you can
    12·1 answer
  • A kennel has eight adult dogs and 14 puppies what is the ratio of adult dogs two puppies use a multiplication to have comparison
    15·1 answer
  • What is 9 1/2 in simplest form?
    6·2 answers
  • 20,24,28,32,... you can help me the way you do.​
    13·1 answer
  • Triangle ABC is a right triangle what is the realationship between angles A and B
    9·1 answer
  • P=$222 r=12% Y=10 A=?
    5·1 answer
  • An employer pays $22 for 2 hours.use the ratio table to determine how much she charges for 5 hours.
    13·1 answer
  • Question 2 (2 points)<br> Subtract.<br> A) -18 - (-12) =<br> on &amp;<br> 5
    9·2 answers
  • Which is not true?<br> A) -8&lt;0<br> B) -8&gt;0<br> C) 7&gt;-9<br> D) -9&lt;7
    15·1 answer
  • The Lunchroom Murder
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!