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
Katen [24]
4 years ago
6

hi:) for 5(b) , I got 157.7 & 22.3 but in the answer key, the only correct answer is 157.7. I thought there should be 2 poss

ible values?

Mathematics
2 answers:
n200080 [17]4 years ago
8 0

Answer:

Θ = 157.7°

Step-by-step explanation:

Given

cosΘ = - 0.925

Since cosΘ < 0 then Θ is in the second or third quadrant.

Since 0° ≤ Θ ≤ 180° then Θ is in the second quadrant. thus

Θ = cos^{-1}(- 0.925) = 157.7° ← angle in second quadrant

inna [77]4 years ago
7 0

Answer:

There should be only 1 value (157.7°) since we reject the second value as θ lies in quadrant 1 and 2. Note that the 2nd value should have been 202.3°, which is greater than 180°.

Cosine of an angle negative in the 2nd and 3rd quadrant.

Step-by-step explanation:

Please see attached picture.

You might be interested in
The price of a community pool membership has a one-time sign-up fee and a monthly fee. The price can be modeled by the function
never [62]
The slope in this equation is 20. This represents the monthly fee. Every month u go, u pay 20 bucks
8 0
3 years ago
Read 2 more answers
What is 40/17 rounded to the nearrst hundreth as a decimal ​
Sauron [17]
40 divide by 17 is 2.35
5 0
3 years ago
(HELP FAST )What is the solution to this system of equations? *
Phantasy [73]

Answer:

(1,3) should be the answer due to the fact that both lines intersect at that point.

Step-by-step explanation:

8 0
3 years ago
The Hamptons family has a fish tank holding 10,450 ml of water. The water is leaking at a rate of 270 ml per minute. Define the
Serggg [28]

The input is any variable which goes into the system. In this case there is no input.

 

<span>While the output is any variable going out of the system. In this case the output is the amount of water which leaked out.</span>

3 0
3 years ago
Read 2 more answers
the ratio of the sides of two squares is 6:16 the area of the smaller square is 45cm2 what’s the area of the larger square
Rama09 [41]
Ans=120cm^2
45/6*16
………….
6 0
3 years ago
Other questions:
  • Choose the slope _intercept form of 3x+2y=5
    12·2 answers
  • What is y x 6 for y = 2/3?
    10·2 answers
  • Vince read 1 /4 of his book on Monday. He read 2/ 4 more of his book on Tuesday. How much of his book did Vince read on the two
    12·1 answer
  • The trapezium is drawn on a centimetre grid. find the area of the trapezium
    13·2 answers
  • What is the diameter of a CD with a circumference of 36 centimeters?
    9·1 answer
  • Find the surface area of the cylinder. ROUND YOUR ANSWER TO THE NEAREST TENTH. PLEASE I NEED HELP also if anyone can I need the
    9·2 answers
  • Find the measure of angle k
    5·1 answer
  • 12. Without using any calculator, work out the
    11·1 answer
  • A school had 180 boys and 240 girls attending
    15·1 answer
  • Find the value of x that makes m || n
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!