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
Molodets [167]
4 years ago
11

Let u be an angle in the 4th quadrant with cos u=8/9 Then sin u=

Mathematics
1 answer:
lutik1710 [3]4 years ago
5 0
To solve for the last side of the triangle, use the Pythagorean Theorem:
(8)^2 + x^2 = (9)^2
x = sqrt of 17
However, this is a NEGATIVE sqrt 17 because the terminal side is in quadrant 4, meaning that this side is under the X-axis and therefore negative.
Now that you know the side opposite of u in the triangle, do opposite/hypotenuse.
sin u = -(sqrt 17)/9
You might be interested in
A beverage is made by mixing 2 parts of water with 3 parts of fruit juice. How many parts of water are mixed with 1 part of frui
photoshop1234 [79]
2/3 = x/1...2 parts water to 3 parts juice = x parts water to 1 part juice
cross multiply
(3)(x) = (2)(1)
3x = 2
x = 2/3 parts water are needed for 1 part juice
6 0
4 years ago
The electronics store would pay him $9 per hour towork 15hrs per week and 3.5% commission on his sales the average weekly sales
ryzh [129]
First, find out his wage
15 hours×$9= $135

Next find his commission
$7000×3.5%
=7000×0.035
=$245

Finally, add these together
$135+$245
=$380 He will make $380 selling electronics per week
6 0
3 years ago
Is this right? and if not pls tell why but if I'm right tell why anyway​
iVinArrow [24]

Answer:

Thats right

Step-by-step explanation:

Model 2 is just Model 1 divided into 3 parts.

Since only 1 of those three parts is shaded, its 1/3.

5 0
3 years ago
Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
mr_godi [17]

Answer:

To determine the inverse of the given function, change f(x) to y, switch x and y and solve for y and f^-1(x)= ln(x+4)/2

Step-by-step explanation:

f(x) = e^2x - 4

to find the inverse let

y = e^2x - 4

Replace x and y

x = e^2y - 4

and now, solve to find value of y

x + 4 = e^2y

taking ln on both sides:

ln(x+4) = ln(e^2y)

ln(x+4) = 2y

=> y = ln(x+4)/2

=> f^-1(x)= ln(x+4)/2

So, To determine the inverse of the given function, change f(x) to y, switch x and y and solve for y and f^-1(x)= ln(x+4)/2

4 0
4 years ago
Read 2 more answers
Please answer !!! Solve ! Thank you
antoniya [11.8K]

Answer:

X=g-3c

Step-by-step explanation:

it is bcz I know:):)

8 0
3 years ago
Other questions:
  • The height of a house is 26 feet. What is the hieght x of each story?
    5·1 answer
  • 19. Which point in the figure shown is the vertex of an angle?
    15·1 answer
  • At the beginning of the summer, Jenna had saved $141. To earn money over the summer, she is working part time at the local commu
    11·1 answer
  • Kayla is given a monthly allowance. She puts 40% of the money directly into her savings account. She spends $15 at the movies wi
    5·1 answer
  • Which box plot represents the data set 2, 4, 6, 8, 10, 12?
    7·2 answers
  • Please help :))<br> ty :))
    10·2 answers
  • Please help- will give brain list
    10·1 answer
  • I need help again....
    8·2 answers
  • Happy House Cleaning Services charges a fee represented by the equation y=10x+20 Interpret the slope, and y-intercept of the lin
    7·1 answer
  • Find two natural numbers that are multiples of both 12 and 15​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!