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
andre [41]
3 years ago
8

If the point P(-4/5,y) lies on the unit circle and P is in the third quadrant, what does y equal? If necessary, use the slash ma

rk ( / ) for a fraction bar.
Mathematics
2 answers:
aleksandr82 [10.1K]3 years ago
8 0
We use the fact that x2+y2=1  This is the equation of the unit circle.
We know that x=-4/5, so plug this in and solve for y
x2+y2=1 <span>(−4/5)^2+y2=1</span> 16/25+y2=1 y2=1−16/25 y2=9/25 <span>y=−square root of 9/ 25</span>
y = -3/5
guapka [62]3 years ago
7 0

Answer:

-3/5

Step-by-step explanation:


You might be interested in
A large pizza cost $12. Each toooo g cost an additional $1.50. This situation can be repeated by the equation. Y= $2.59x +13, wh
Kay [80]
Do you have an answer? What do you think it is?
6 0
3 years ago
Write an expression that can be usedto find the nth termo of each sequence 9, 17, 25, 33
ra1l [238]

Answer:

The expression used to find the nth term of each sequence 9, 17, 25, 33 will be:

  • a_n=8n+1

Step-by-step explanation:

Given the sequence

9, 17, 25, 33

a₁ = 9

<em>Determining the common difference</em>

d = 17-9 = 8

d = 25-17 = 8

d = 33-25 = 8

As the common difference between the adjacent terms is same and equal to

d = 8

Therefore, the given sequence is an Arithmetic sequence.

An arithmetic sequence has a constant difference 'd' and is defined by  

a_n=a_1+\left(n-1\right)d

substituting a₁ = 9, d = 8 in the equation

\:a_n=9+8n-8

a_n=8n+1

Therefore, the expression used to find the nth term of each sequence 9, 17, 25, 33 will be:

  • a_n=8n+1
6 0
3 years ago
Why do we add the opposite when subtracting integers ?
katen-ka-za [31]
Neagtive means go backwards or oposite
it takes away that many units

7 0
3 years ago
Find the area of the shaded region .
Greeley [361]

Calculate area of the white region inside circle.

Area of the two white triangles in top left and bottom right:

2 \cdot \frac{1}{2}(6)(6) = 36 ft^2

Area of the two white quarter circles in the bottom left and top right:

2 \cdot \frac{1}{4}\pi (6)^2 = 18\pi ft^2

Total area of unshaded white region inside circle:

(36 + 18\pi)ft^2

Area of entire circle including the white and shaded regions

\pi(6)^2 = 36\pi ft^2

Area of shaded region is area of entire circle - area of unshaded white region

36\pi - (36 + 18\pi) = (18\pi - 36) ft^2

7 0
3 years ago
Several students decide to start a T-shirt company after initial expenses of $280 they purchase each T-shirt wholesale for $3.99
JulsSmile [24]
10.99x = 3.99x + 280
7x = 280
x = 40
They must sell 40 T-shirts to break even
4 0
3 years ago
Read 2 more answers
Other questions:
  • Find cos(ZA).<br> Choose 1 answer:
    12·1 answer
  • Find the minimum value of C=2x+y subject to the following constraints: <br> Please help me!!
    10·1 answer
  • What is the domain of the following relation?
    9·1 answer
  • OMG PLEASE HELP!!! And explain
    12·1 answer
  • Answer this for points and brainilest
    6·1 answer
  • Hewlpp!!!!!!!! please!!
    9·2 answers
  • A number line graph is shown:
    8·1 answer
  • I'm doing some map testing please help
    9·1 answer
  • Dave's favorite baseball team has won 10 fewer games than Kimiko's favorite baseball team. Write an algebraic expression for the
    5·1 answer
  • Determine the equation of the following polyromial that passes through point (0,6).
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!