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
guapka [62]
3 years ago
11

Help I'm not sure if this is the answer? (This question is about trigonometric ratios)

Mathematics
1 answer:
dem82 [27]3 years ago
3 0

9514 1404 393

Answer:

  (b) 15.32

Step-by-step explanation:

You can use your triangle sense to answer this.

The side x will always be shorter than the hypotenuse, 20. This eliminates the last two choices.

If the angle is 45°, then the sides are equal at about 0.707 times the length of the hypotenuse. That would make them 0.707×20 = 14.14. Since the angle is greater than 45°, the opposite side will be greater than 14.14. Only one answer choice fits between 14 and 20: the second choice -- 15.32.

__

The mnemonic SOH CAH TOA reminds you of the relation ...

  Sin = Opposite/Hypotenuse

  sin(50°) = x/20

  x = 20×sin(50°) . . . . multiply by 20 to find x

  x ≈ 15.32 . . . . . . . . . use your calculator to evaluate

__

The attachment is intended to show how the triangle side lengths change with angle.

You might be interested in
- George wanted to buy a car for $20,000. He knew he wanted to trade it in when the car had depreciated to $12,500. He knows tha
777dan777 [17]

Answer:

yes your are correct socyeahhh

3 0
4 years ago
What is the expression in factored form?
fredd [130]
9x² - 12x + 4

write the equation with two middle terms that multiply to give 36
9x² - 6x - 6x + 4

by factorisation
3x(3x - 2) - 2(3x - 2)

(3x - 2)²

Thus OPTION A
4 0
3 years ago
-11x - 27 + 19x<br> combine like terms for each expression
weqwewe [10]

This simplifies to <u>8x-27</u> because -11x and +19x are like terms.

4 0
2 years ago
Read 2 more answers
Can you help please???????? ANYBODY this is important
olga_2 [115]
It’s D I hope I’m not late
7 0
3 years ago
PLEASE I REALLY NEED HELP ON THIS​
saul85 [17]
Answer:
a) a= (3/4)t
4a = 3t
b = (5/2)t
2b = 5t
b)See explanation below
c) It will take 30.075 hours for the whole business to make at least $500 profit
Step-by-step explanation:
a) First we would represent the information given in terms of amount of bracelet produced and time spent in production with variables in order to convert to linear equations
Let number of bracelet Darrelle makes = a
Number of bracelet Danica makes = b
Let the time spent in producing them in hours = t
Darrelle takes 4 hours to make 3 bracelets:
Rate of producing bracelet = (number of bracelet produced)/time
Rate = a/t = 3/4
4a = 3t
Linear equation form: y = mx + c
a= (3/4)t
The above equation is in the slope-intercept form indicating the intercept = 0 and slope = 3/4
4a - 3t = 0 (equation in standard form )
Danica makes 5 bracelets every 2 hours:
Rate of producing bracelet = (number of bracelet produced)/time
Rate = b/t = 5/2
2b = 5t
Linear equation form: y = mx + c
b = (5/2)t
The above equation is in the slope-intercept form indicating the intercept = 0 and slope = 5/2
2b - 5t = 0 (equation in standard form)
b) The equations are linear equations, hence they can be graphed.
But as regards graphing using special functions, this answer can only be answered by you as I'm not aware of the special functions discussed in the course.
c) Darrelle makes $10.50 in profit per bracelet.
Danica makes $3.50 in profit per bracelet
Since Darrelle and Danica work the same amount of time, we have to find the relationship between their profit, the number of bracelets produced and the time.
Profit for Darrelle for 'a' number of bracelet product = $10.50 × a = $10.50a
Profit for Danica per 'b' number of bracelet product = $3.50 × b = $3.50b
Let P = total profit made by both
P = $10.50a + $3.50b
Relationship of profit in terms of time spent in production when they work same amount of time:
P = $10.50(3/4 ×t)+ $3.50(5/2 × t)
P = 16.625t
When P = $500, t = ?
500 = 10.50(3/4 ×t)+ 3.50(5/2 × t)
500 = 7.875t + 8.75t
500 = 16.625t
t = 30.075 hours
It will take 30.075 hours for the whole business to make at least $500 profit
7 0
3 years ago
Other questions:
  • 5 times the difference between 19 and 13
    15·1 answer
  • What is 1,632 in word form?
    7·2 answers
  • Kareen bought 12 pencils for $2.16. At the same unit price, how many pencils could he buy with $4.50?
    11·1 answer
  • A train left Apex at 12 P.M. and traveled for 3 hours and 5 minutes. It stopped for fuel for 10 minutes, and then continued towa
    15·2 answers
  • 3 <br> = , which is 0.15 in decimal form.<br> 20 100
    7·1 answer
  • Ameekah is working with consecutive integers
    9·2 answers
  • You have a deck that has an area of 144 sq. ft. You and your family have decided to increase the area of your deck by 32 sq. ft.
    15·1 answer
  • Can you help meh answer for brianliest
    15·2 answers
  • Solve this inequality for n.<br> 14.&lt; n - 22
    9·2 answers
  • Multiply (2x + 2y)(2x + 2y)
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!