The expected value of a dataset is the mean of the dataset.
The complete text is: Pamela can expect to see 1 red car and 1 green car on her way to office.
Expected value is calculated as:
[tex]\mathbf{E(x) =\sum x \times P(x)}[/tex]
For the red cars, we have:
[tex]\mathbf{Red = 0 \times 0.43 + 1 \times 0.31 + 2 \times 0.14 + 3 \times 0.10 + 4 \times 0.02}[/tex]
[tex]\mathbf{Red = 0.97}[/tex]
Approximate
[tex]\mathbf{Red = 1}[/tex]
For the green cars, we have:
[tex]\mathbf{Green= 0 \times 0.45 + 1 \times 0.17 + 2 \times 0.22 + 3 \times 0.07 + 4 \times 0.09}[/tex]
[tex]\mathbf{Green= 1.18}[/tex]
Approximate
[tex]\mathbf{Green= 1}[/tex]
Hence, the expected values of red and green is 1.
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Lucinda spent $95.40 on 4 video games. If each game was the same price, how much did he pay for each
Answer:
If they all cost the same price they should all cost $23.85
What is the slope of the line that passes through the points (−8,−1) and (−6,−2)? Write your answer in simplest form.
Answer:
m = -1/2
Step-by-step explanation:
Recall that slope = (change in y) / (change in x).
Going from (−8,−1) to (−6,−2), x increases by 2 (because -6 - (-8) = 2), and
y decreases by 1. Thus, the slope here is
m = (change in y) / (change in x) = (-1) / 2 = -1 / 2
m = -1/2
solve please ;3 ( will give brainliest ♡ )
(0.2a - 0.5b) ( 0.2a + 0.3b) multiply the following
plz sent with the equation right now plz plz
Answer:
The answer is 0.04a² - 0.04ab - 0.15b²
Step-by-step explanation:
(0.2a - 0.5b) ( 0.2a + 0.3b)
0.04a² + 0.06ab - 0.1ba - 0.15b²
0.04a² + 0.06ab - 0.1ab - 0.15b²
0.04a² - 0.04ab - 0.15b²
Thus, The answer is
0.04a² - 0.04ab - 0.15b²
-TheUnknownScientist 72
HELP MEE I HAVE TO TURN IT IN TOMORROW
Mrs. Larsen wants to get some markers for her class. She notices that they come in boxes of
8.
Write an equation that shows how the total number of markers Mrs. Larsen gets, y, depends
on the number of boxes she buys,X.
y =
(i’ll crown brainliest to whoever answers first, i don’t need the explanation just the answer and how i’m supposed to write it out)
Answer:
y=8x
Step-by-step explanation:
hubsdgvgcsvya
The equation that shows that the total number of markers Mrs. Larsen gets y depends on the number of boxes she buys x, will be;
⇒ y = 8x
What is an expression?
Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
Mrs. Larsen wants to get some markers for her class.
She notices that they come in boxes of 8.
Now,
Let total number of markers = y
And, Number of boxes = x
Here, She notices that they come in boxes of 8.
So, We can formulate;
⇒ y = 8x
Thus, The equation that shows that the total number of markers Mrs. Larsen gets y depends on the number of boxes she buys x, will be;
⇒ y = 8x
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Find the value of x. 50° 83° X
Answer: trap house
Step-by-step explanation:
-4 = 20 - 10x
i dont know what to do pls help
Answer:
x = 2.4
Step-by-step explanation:
10x = 24
x = 24 ÷ 10
x = 2.4
Step-by-step explanation:
→ -4 = 20 - 10x
→ -20 - 4 = 10x
→ -24 = 10x
→ x = -24/10
→ x = -2.4
therefore, value of x is -2.4
hope this answer helps you dear!
5/7 divided by 2/7. Divide
Answer:
2.5 am i right
please mark me as brainliest
Answer:
2.5 or 35/14
Step-by-step explanation:
Translate the following phrase into an algebraic expression. Use the variable b to represent the unknown quantity.
The number of soda bottles split 5 ways
Answer:
s/5=b
Step-by-step explanation:
The required expression is n/5 = b
What is an expression?One mathematical expression makes up a term. It might be a single variable (a letter), a single number (positive or negative), or a number of variables multiplied but never added or subtracted. Variables in certain words have a number in front of them. A coefficient is the number used before a phrase.
Given:
We have the variable b to represent the unknown quantity.
The expression,
the number of soda bottles split 5 ways.
That means,
Let n be the number of soda bottles.
So,
using division operation,
n / 5 = b
Therefore, the expression is n/5 = b.
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2/3 = 4/x+3 what is x?
Answer:
-12/7
Step-by-step explanation:
2/3=4/x+3
2/3-3=4/x Subtract 3 from both sides
2/3-9/3=4/x Make them have a common denominator
-7/3=4/x
-7/3x=4
x=(4)/(-7/3)
x=[tex]\frac{-12}{7}[/tex]
write the equation of a line that is parallel to y=12-5x and passes through the point (1,-7)
Answer:
y= -5x-2
Step-by-step explanation:
Parallel equations have the same slope, so we know our slope will be -5. To get our y-intercept, we need to plug in our slope. 1 times -5 is -5, so we need to figure out how to get from -5 to -7. We're going to subtract 2, so the y-intercept is -2.
The equation of the line parallel to y=12-5x and passes through the point (1,-7) will be y= -5x-2.
What is an equation of the line?An equation of the line is defined as a linear equation having a degree of one. The equation of the line contains two variables x and y. And the third parameter is the slope of the line which represents the elevation of the line.
The general form of the equation of the line:-
y = mx + c
m = slope
c = y-intercept
Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )
Given that the equation of a line that is parallel to y=12-5x and passes through the point (1,-7).
The slope of the parallel lines is always the same. The slope of the line will be -5.
The y-intercept of the line will be calculated as,
y = mx + c
-7 = -5(1) + c
c = -7 + 5
c = -2
The equation of the line will be written as,
y = mx + c
y = -5x - 2
Therefore, the equation of the line parallel to y=12-5x and passes through the point (1,-7) will be y= -5x-2.
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Find the unit rate for this situation. Please DO NOT use any extra spaces or
symbols. Simply type in the number amount.
Use the graph below to find the x-and y-intercepts.
x-intercept : 2 ; y -intercept : 6
x- intercept: - 3; y-intercept : 6
X -intercept : 2 ; y -intercept : -3
X -intercept : 6; y-intercept : 2
Answer:
x-intercept : -3 and y-intercept 6
Step-by-step explanation:
x-intercept is the point where the graph crosses the x-axis.
y-intercept is the point where the graph crosses the y-axis.
Multiply. Write the answer in the simplest form.
4/7 x 4 3/8 x 5/6
Answer:
2 1/12
The answer should be 2 1/12
(Two and one over twelve)
or
(Two and a one twelfth)
Answer:
2.1
Step-by-step explanation:
...........................
The graph shown below expresses a radical function that can be written in the for f(x)=a(x+6)
Answer:
Step-by-step explanation:
MY SISTER HAVE DIS EQUETION I TELL YOU
Which number is different from the others? 100, 300, 400, 900, 81, 25, 3600
15 POINTSSSSSS
Answer:
81 is the answer
Step-by-step explanation:
:>>>>>>>>
Solve the equation.
b^2 = 48
Answer:
b=6.92820323
Step-by-step explanation:
To find b, you would do the opposite from ^2 which is the square root. So the square root of 48. That is 6.92820323
Answer:
b ≈ 6.928 or 4√3
Step-by-step explanation:
b² = 48. To find b, we need to square root both sides (we are doing the opposite of squaring):
b = √48 = 4√3 or ≈ 6.928
Hope this helps!
Quis mode Easy
hasil dari
T²⁵⁴÷T²⁴³=
Answer:
T²⁵⁴÷T²⁴³=
T²⁵⁴-²⁴³=
=T¹¹
done and thank you
Solve the quadratic equation 2x^2-4x+1=0
Answer:
Step-by-step explanation:
= 2 ± 2 √ 2
The picture is where my question is please answer it, thanks.
9 children and 0 adults, 6 children and 2 adults, 3 children and 4 adults, or 6 adults and 0 children went to the park.
Given that a group wants to visit a water park over the summer, and tickets cost $ 10 for each child and $ 15 for each adult, and the group has a total of $ 90 to spend on tickets to the water park, to determine how many people from each group went to the park, the following calculation should be made:
10X + 15Y = 90
Thus, there are different correct options:
9 children and 0 adults, 6 children and 2 adults, 3 children and 4 adults, or 6 adults and 0 children went to the park.
credit to: francocanacari
if m<4= 86° what are the measures of the other seven angles in the figure
Answer:
below
Step-by-step explanation:
IF l₁ and l₂ are parallel, then:
Angles 2, 4, 5, 8 all equal 86 degrees
Then angles 1, 6, 3 , 8 all equal 180 - 86 which is 94 degrees
Someone help me I will make you brain
Answer:
its the 2nd one
Step-by-step explanation:
because im big brain
pls help don't send links
Answer:
there is not any correct answer among the options.
the answer is
[tex] \frac{ - 21}{45} [/tex]
Simplify the expression!
-7/15
During the summer, Hector does yard work, and Geri babysits.To show their earnings, Hector makes a graph, and Geri makes a table. Which statement is true?
Answer:
Step-by-step explanation:
$6.59
Answer:
Hector earns $6.50 more per hour than Geri.
Old solve
(x ÷ 5)(x÷5)(x÷5)
Answer:
1/125(x^3)
Step-by-step explanation:
Let's simplify this expression.
[tex]\frac{x}{5} * \frac{x}{5} * \frac{x}{5}[/tex] [tex]\frac{xxx}{5*5*5}[/tex] [tex]\frac{x^3}{5*5*5}[/tex] [tex]\frac{x^3}{125}[/tex] [tex]\frac{1}{125}x^3[/tex]Therefore, the simplified answer is [tex]\frac{1}{125}x^3[/tex].
Please help this needs to be done by the end of the day
Use the number line to help you decide which statement is true.
(A)
(B)
(C)
Answer:
I think it's (A). 5
I don't know
Answer:
5/8 > 1/2
Step-by-step explanation:
No need number line. Just use fraction walls
If a jar contains 3 blueberry, 4 ginger, 1 green, and 6 regular tea bags, what is the probability that a regular tea bag will be pulled from the jar? Answers must be in simplest form.
What is the constant of proportionality in the equation y 5/4 x ?
Answer:
Firest y5/ 4x = y5 - 4 /4X -4
x= y
