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
ollegr [7]
2 years ago
15

Find the mean, variance, and standard deviation. If necessary, round your answer to the nearest hundredth.

Mathematics
1 answer:
storchak [24]2 years ago
4 0

Your answer would be 4.

You might be interested in
Find an expression for a cubic function f if f(4) = 96 and f(-4) = f(0) = f(5) = 0. Part 1 of 4 A cubic function generally has t
Bezzdna [24]

Given a polynomial p(x) and a point x_0, we have that

p(x_0) = 0 \iff (x-x_0) \text{\ divides\ } p(x)

We know that our cubic function is zero at -4, 0 and 5, which means that our polynomial is a multiple of

(x+4)(x)(x-5) = x(x+4)(x-5)

Since this is already a cubic polynomial (it's the product of 3 polynomials with degree one), we can only adjust a multiplicative factor: our function must be

f(x) = ax(x+4)(x-5),\quad a \in \mathbb{R}

To fix the correct value for a, we impose f(4)=96:

f(4) = 4a(4+4)(4-5) = -32a = 96

And so we must impose

-32a=96 \iff a = -\dfrac{96}{32} = -3

So, the function we're looking for is

f(x) = -3x(x+4)(x-5)=-3x^3+3x^2+60x

4 0
3 years ago
Which equation represents the line shown in the graph below?
likoan [24]

The answer is y=2x+5


To get it use point slope by taking two points and solving .


Slope formula


M= y2-y1/x2-x1


With two points


(0,5)(-5,-5)


M= -5-5/-5-0

M= -10/-5

M=2


2 is slope


Now get one of the points

(0,5) And slope to create equation y=mx+b . Now find b


5=2(0)+b

5=b


So now you can put it all together


Y= 2x+5

3 0
3 years ago
Factor each completely.<br><br> 2x3 - 9x2 + 9x
EleoNora [17]

Answer:

x(2x−3)(x−3)

Step-by-step explanation:

2x^3−9x^2+9x

= x(2x−3)(x−3)

4 0
3 years ago
U - 4u + 4 = 7 what is U
valentina_108 [34]
Try to get the u’s on one side so for this to happen, you would subtract the four from both sides.
u - 4u = 7 - 4

combine like terms

-3u = 3

divide by -3

u = -1
8 0
3 years ago
Read 2 more answers
State if the two triangles are congruent. If they are state how you know.<br> Help me
deff fn [24]

Answer:

i think its the last option.

Step-by-step explanation:

its not the first one because they it can be proved using AAS (but that option isnt available)

You can't prove it with SSS or ASA without more info

AAA doesn't exist

theirfore it must be the last option.

3 0
2 years ago
Read 2 more answers
Other questions:
  • Which equation is represented by the bar model shown​
    9·1 answer
  • a boat is traveling at an average speed of 15 meters per second. how many kilometers per minute is the boat traveling?
    8·2 answers
  • Plz help<br> plz help me
    7·1 answer
  • Find the areas of at least two of the triangles below. Show your reasoning.<br> help plzz
    7·1 answer
  • Simplify expresion 5x³y(2x+3y-4) =
    7·2 answers
  • a fair coin is flipped. if the flip results in a head, then a fruit is selected from a basket containing 8 apples, 2 bananas, an
    13·1 answer
  • What is the value of x
    15·2 answers
  • Garrett can order stickers from two
    5·1 answer
  • The equation of a line is 4x−3y=−24.<br><br> What is the x-intercept of the line?
    9·1 answer
  • A. -2x + y = -2
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!