Answer:
b) 2.00
Step-by-step explanation:
For each name, there are only two possible outcomes. Either it is authentic, or it is not. The probability of a name being authentic is independent of any other name. This means that we use the binomial probability distribution to solve this question.
Binomial probability distribution
Probability of exactly x sucesses on n repeated trials, with p probability.
The expected value of the binomial distribution is:
[tex]E(X) = np[/tex]
She randomly selects five names from the list for validation.
This means that [tex]n = 5[/tex]
40% of the names on the list are non-authentic
This means that [tex]p = 0.4[/tex]
The expected (average) value of x is
[tex]E(X) = np = 5*0.4 = 2[/tex]
The correct answer is given by option B.
Enter the product as a product of a hole number and unit fraction. 2 x 5/4.
An arm wrestler is the champion for a period of 75 hours. (Here, by an hour, we mean a period starting from an exact hour, such as 1 P.M., until the next hour.) The arm wrestler had at least one match an hour, but no more than 125 total matches. Show that there is a period of consecutive hours during which the arm wrestler had exactly 24 matches.
Answer:
The answer is "In the i-th to J-th hour, the Wrestler played only 24 match-ups".
Step-by-step explanation:
Let [tex]x_i[/tex] label the number of teams played by the wrestler for [tex]1 \leq i \leq 75[/tex], after i-th hour, where [tex]1 \leq x_i \leq 125[/tex]. This also means [tex]25 \leq x_i + 24 \leq 149[/tex]. The Pigeonhole Principle means that [tex]\ni i \neq j \ni x i+ 24 = x ,j[/tex] is played exactly 24 matches between the i-th and j-th-hours end. Thus, 150 integrals [tex]x_1,x_2,......x_{75}, x_1+24,x_2+24.[/tex] In the i-th to J-th hour, the Wrestler played only 24 match-ups.
please help it due today?
Answer:
B. It has four right angles.
E. opposites side are parallel.
F. Diagonal are congruent.
answer
y=-0.0241x^2+x+5.5
What is the area of the kite? 10 yd 4 yd 6 yd 4 yd
What is the area, in square meters, of the shape below?
Answer:
20.9 i think
Step-by-step explanation:
Answer:
10.45
Step-by-step explanation:
h=3.8
b-5.5
5.5 multiply 3.8 =20.9
this is a triangle so divide 20.9 by 2
=10.45
Two rules for creating a pattern are given below. Each rule begins with a number called the input and creates a number called the output.
Rule 1: Subtract 8 from the input to get the output.
Rule 2: Divide the input by 3 to get the output.
Which input and output table works for both rules?
Choose 1 answer:
(Choice A)
Input Output
18 6
(Choice B)
Input Output
12 4
(Choice C)
Input Output
16 8
Answer:
None of the above
Step-by-step explanation:
Because when you subtract 8 and divide by 3 any on these inputs, none of them result in the output.
A pyramid has a regular hexagonal base with side lengths of 4 and a slant height of 6. Find the total area of the pyramid.
9514 1404 393
Answer:
113.57 square units
Step-by-step explanation:
The area of each of the 6 triangular faces is ...
A = 1/2bh
A = (1/2)(4)(6) = 12 . . . . square units
The area of the base is ...
A = (3√3)/2·s² . . . . . . for side length s
A = (3√3)/2×4² = 24√3 . . . . square units
Then the total area is ...
total area = base area + face area
= 24√3 + 6(12) = 24(3 +√3) ≈ 113.57 . . . square units
Enter an algebraic expression that represents fifteen less than the sum of y cubed and seven.
Answer:
y^3 + 7 - 15
Step-by-step explanation:
Solve for x.
15x + 6 = 10x + 21
O x=5
O x= 5 2/5
Ox= 3
Ox=-5 3/5
Will give you brainly
Answer:
3
Step-by-step explanation:
15x+6=10x+21
5x=15
x=3
Answer: x=3
Step-by-step explanation:
[tex]15x+6=10x+21\\5x+6=21\\5x=15\\x=3[/tex]
5 1/3 divided by 1 1/6
Answer:
4 4/7
Step-by-step explanation:
16/3 ÷ 7/6 is the same as 16/3 × 6/7
this comes out to be 32/7 or 4 4/7
Answer:
10/7
Step-by-step explanation:
use the desmos calculator its pretty helpful
Click to select the correct answers. Click again to unselect answers. Leave the incorrect answers unselected.
Supplier B has four outliers
Supplier A has two outliers
Supplier A has a gap at 598.5
Supplier B has a gap below 597.0
Supplier B has one outlier
Supplier A has no outlier
Answer c e f
Step-by-step explanation:
Given the graph of f(x) above, what is f(-4) *
Answer:
2
Step-by-step explanation:
go to -4 on the x axis, then see which point the line is on, on the y axis.
Help please I need it DONT scam
Which coordinate grid shows points and plotted at (4.3)
Answer:
B
Step-by-step explanation:
(x-coordinate, y-coordinate) and the horizontal axis refers to the x-axis and the vertical axis refers to the y-axis.
help me please 29 points
i need chars lol
Answer:
3rd answer
Step-by-step explanation:
Answer:
whats chars?
Step-by-step explanation:
Find the area base = x+8 height x+7
9514 1404 393
Answer:
x² +15x +56
Step-by-step explanation:
We presume these are dimensions of a rectangle, so the area is their product.
A = (x +8)(x +7) = x(x +7) +8(x +7) = x² +7x +8x +56
A = x² +15x +56
On the unit circle, the m∠θ = π radians. Which is the coordinate?
2 5/6 x 3 7/8 plss help
Answer:
Exact form: 925/48
Decimal form: 19.27083
Mixed number form: ↓↓↓↓
[tex]19 \times \frac{13}{48} [/tex]
Step-by-step explanation:
hope that helps :) have a good day!
What is the remainder when 7x^2- x^3is divided by x - 8?
Answer:
The remainder is -64
Step-by-step explanation:
Given
[tex]7x^2 - x^3[/tex]
Divided by [tex]x - 8[/tex]
Required
Determine the remainder
Equate [tex]x - 8[/tex] to 0
[tex]x - 8 = 0[/tex]
Solve for x
[tex]x = 8[/tex]
Using remainder theorem, substitute 8 for x in [tex]7x^2 - x^3[/tex]
So, we have:
[tex]7 * 8^2 - 8^3[/tex]
Evaluate all exponents
[tex]7 * 64 - 512[/tex]
[tex]448 - 512[/tex]
[tex]-64[/tex]
A rectangular carport has area of one 50 ft.The width of the carport is 5 feet less than twice its length. Find the length and width of the carport
Width= ? feet,
Length= ? feet
Answer:
[tex]Length = 10ft[/tex]
[tex]Width = 15ft[/tex]
Step-by-step explanation:
Given
[tex]W= Width\\ L = Length[/tex]
[tex]Area = 150[/tex]
[tex]W=2*L- 5[/tex]
Required
Determine the dimension
Area is calculated as:
[tex]Area = L * W[/tex]
So, we have:
[tex]L * W = 150[/tex]
Substitute: [tex]W=2*L- 5[/tex]
[tex]L * (2*L-5) = 150[/tex]
[tex]L * (2L-5) = 150[/tex]
Open bracket
[tex]2L^2 - 5L = 150[/tex]
Rewrite as:
[tex]2L^2 - 5L - 150=0[/tex]
Expand
[tex]2L^2 -20L + 15L - 150 = 0[/tex]
Factorize:
[tex]2L(L -10) + 15(L - 10) = 0[/tex]
[tex](2L + 15) (L - 10) = 0[/tex]
Split
[tex]2L + 15=0[/tex] or [tex]L -10 = 0[/tex]
Solve for L
[tex]2L =-15[/tex] or [tex]L = 10[/tex]
L cannot be negative
So:
[tex]L = 10[/tex]
Substitute [tex]L = 10[/tex] in [tex]W=2*L- 5[/tex]
[tex]W = 2 * 10 - 5[/tex]
[tex]W = 20 - 5[/tex]
[tex]W = 15[/tex]
Hence:
[tex]Length = 10ft[/tex]
[tex]Width = 15ft[/tex]
According to Wine-Searcher, wine critics generally use a wine-scoring scale to communicate their opinions on the relative quality of wines. Wine scores range from to , with a score of indicating a great wine, indicating an outstanding wine, indicating a very good wine, indicating a good wine, indicating a mediocre wine, and below indicating that the wine is not recommended. Random ratings of a pinot noir recently produced by a newly established vineyard in follow: Excel File: data07-11.xlsx 87 91 86 82 72 91 60 77 80 79 83 96 a. Develop a point estimate of mean wine score for this pinot noir (to decimals).
Answer:
[tex]\=x=82[/tex]
Step-by-step explanation:
From the question we are told that:
Data
[tex]\begin{center}\begin{tabular}{ |c|c|c|c|c|c| } 87& 91& 86& 82& 72&91 \\ 60& 77& 80& 79& 83&96 \end{tabular}\end{center}[/tex]
Generally the equation for Point estimate [tex]\=x[/tex] is mathematically given by
[tex]\=x=\frac{\sum_x}{n}[/tex]
[tex]\=x=\frac{87 +91+ 86+ 82 +72 +91+ 60+ 77 +80+ 79+ 83 +96}{12}[/tex]
[tex]\=x=\frac{984}{12}[/tex]
[tex]\=x=82[/tex]
PLEASE HELP! WILL GIVE BRAINLIEST!
Create a factorable polynomial with a GCF of 6. Rewrite that polynomial in two other equivalent forms. Explain how each form was created.
Answer:
Answer: the equivalent form of 6(2x+3x+10) are 12x+18x + 60 and 30x+60.
Hope this helps
Answer:
The equivalent form of 6(2x+3x+10) is 12x+18x + 60 and 30x+60.
Explanation:
12x+18x + 60 is one of the equivalent form of 6(2x+3x+10) To get another equivalent form we combine like terms.
30x + 60 is the equivalent form of 6(2x+3x+10)
Solve by completing the square:
x^2 + 3x - 9 = 0
Answer:
Step-by-step explanation:
x^2 + 3x - 9 =0
By comparing with the equation ax^2+bx+c = 0,
we get,
a = 1, b=3, c = -9
we know the formula for x is,
x = (-b±√(b^2 - 4ac))/2a
x = (-3±√45)/2
x = (-3±3√5)/2
x = (-3+3√5)/2, (-3-3√5)/2
Answer:
2 solutions. x = -3/2 + 3/2 * sqrt(5) and x = -3/2 + -3/2 * sqrt(5)
Step-by-step explanation:
Let's solve your equation step by step.x^2 + 3x −9 = 0
For this equation: a=1, b=3, c=-9
1x^2 + 3x+ −9 = 0
Step 1: Use quadratic formula with a=1, b=3, c=-9.
x = (-b ± [tex]\sqrt{b^2 - 4ac}[/tex])/2a
x = (-3 ± [tex]\sqrt{3^2 - 4(1)(-9)}[/tex])/2a
x = (-3 ± [tex]\sqrt{45}[/tex])/2
x = -3/2 + 3/2 * sqrt(5) or x = -3/2 + -3/2 * sqrt(5)
A circle has a diameter of 46 cm. What is its radius?
Answer:
Step-by-step explanation:
radius = diameter/2 = 46cm/2 = 23 cm
Which of the following functions shows the cube root parent function,
F(x) =3sqrt xhorizontally compressed
The function which shows the cube root of parent function is; Choice A; G(x) = ³√(1/4)x.
What is the function that shows the cube root of the parent function?It follows from task content that upon observation and test of values that;
At point x = 4, G(x) = 1.
This of course stands through for the graph and hence Choice A; is correct.
Read more on graph of functions;
https://brainly.com/question/3939432
#SPJ2
Answer:
Correct answer is C.
Step-by-step explanation:
Did the test
a Clark $200 per week. she also receive a commission a 20% of her weekly salary every time she cells an Appliance. how many appliances must the clark sell in order to gtow $800 per week?
A.15
B. 40
C. 10
D. 50
E. 20
Answer:
20......................................................................................
4x + 3/2x +9 solve for x
Graph 3x – 4y = 12 use slope intercept
Write an algebraic expression: The area, A, or a rectangle with a length of 4 units and a width of w units
Answer:
If the length is 4 units greater than W then it is equal to w*4..
Step-by-step explanation:
A=L*W
A=4*w
A=w*4 or A=4w
In Devon's school, the morning session runs for a total of 182 minutes. The morning session
includes 4 class periods of equal length and a homeroom period that lasts for 10 minutes.
Using the variable m to represent minutes, write an equation that can be used to find the
length of each class period. Then solve for m.
Answer:
Every class period is 43 minutes long.
Equation:
(m - 10) ÷ 4