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
vladimir2022 [97]
2 years ago
11

What does x2 + y2 equal.

Mathematics
1 answer:
Yuri [45]2 years ago
5 0
That’s the equation for the radius of a circle, it would equal r2
You might be interested in
Please help me please will give brainly
JulijaS [17]

its b

Step-by-step explanation:

not really sure hope you get this right im sooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo sorrryyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy i9f you get this wrong

7 0
2 years ago
The diagram shows a regular dodecagon<br> work out the size of one interior angle
Aneli [31]

the diagram shows a regular dodecagon is the size of one interior angle

5 0
2 years ago
A police department reports that the probabilities that 0, 1, 2, and 3 burglaries will be reported in a given day are 0.53, 0.40
SpyIntel [72]
The mean of the probability distribution is given by the expected value given by

E(x)=\sum xp(x) \\  \\ =0(0.53)+1(0.40)+2(0.05)+3(0.02) \\  \\ =0.40+0.10+0.06=0.56

The variance of the probability distribution is given by

Var(x)=(x-\bar{x})^2p(x) \\  \\ =(0-0.56)^2(0.53)+(1-0.56)^2(0.40)+(2-0.56)^2(0.05)\\+(3-0.56)^2(0.02) \\  \\ =(-0.56)^2(0.53)+0.44^2(0.40)+1.44^2(0.05)+2.44^2(0.02) \\  \\ =0.3136(0.53)+0.1936(0.40)+2.0736(0.05)+5.9536(0.02) \\  \\ =0.166208+0.07744+0.10368+0.119072=0.4664

The standard deviation is given by

\sigma(x)=\sqrt{Var(x)} \\  \\ =\sqrt{0.4664}=0.683
5 0
2 years ago
If a= (4,-5) and b= (7,-9), what is the length of ab
faust18 [17]
<span>A (4,-5)
B (7,-9)

</span>AB= \sqrt{(x_A-x_B)^2+(y_A-y_B)^2} \\  x_A=4; \ \ x_B=7; \ \ y_A=-5; \ \ y_B=-9; \\  \\ AB= \sqrt{(4-7)^2+(-5-(-9))^2}= \sqrt{(-3)^2+4^2} =   \sqrt{25}=5<span>
</span>
5 0
3 years ago
Read 2 more answers
See the file below to see my question :)
RideAnS [48]

9514 1404 393

Answer:

  • a = 3
  • b = -18

Step-by-step explanation:

Using the least common denominator, we have ...

  2-\dfrac{x+1}{x-2}-\dfrac{x-4}{x+2}\\\\=\dfrac{2(x-2)(x+2)-(x+1)(x+2)-(x-4)(x-2)}{(x-2)(x+2)}\\\\=\dfrac{2(x^2-4)-(x^2+3x+2)-(x^2-6x+8)}{x^2-4}\\\\=\dfrac{(2-1-1)x^2+(-3+6)x+(-8-2-8)}{x^2-4}=\boxed{\dfrac{3x-18}{x^2-4}}

The values of a and b are ...

  a = 3

  b = -18

3 0
3 years ago
Other questions:
  • Sandra is putting up a fence around her garden, which is in the shape of a square. Each foot of fencing costs $9. If each side o
    15·1 answer
  • What to pieces of information do you need to notify the equation of a line
    7·1 answer
  • The graph of the function f(x)=3/x+5 is shown below.
    13·2 answers
  • Multiply and verify the result by taking x=1 y=2 z=3 (2x-2y) to the power 2
    8·1 answer
  • The current population of a town is 10,000 and its growth in years can be represented by P(t) = 10,000(0.2)^t, where t is the ti
    5·1 answer
  • A pharmaceutical sales representative gets paid $50,000 annually plus
    11·1 answer
  • 26. The side of a square measures 37 cm. What is the approximate
    12·1 answer
  • A motorboat takes 5 hours to travel 150 miles going upstream. The return trip takes 3 hours going downstream. What is the rate o
    5·1 answer
  • Tell whether the angles are complementary or supplementary. Then find the value of x.
    5·2 answers
  • At leslie's school the ratio of boys and girls is 11 to 12 at marks school the ratio of boys girls is 41 to 48 if both schools h
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!