Step-by-step explanation:
75%
selected=8
=8-5=3
=75/100×3
=3/4×3
=9/4
=2 1/4
The probability that 5 people will not go to the restaurant is; 2.31%
This is a binomial probability distribution question which follows the formula;
P(X = x) = ⁿCx • p^(x) • (1 - p)^(n - x)
We are given;
Probability of each person going to the chess Tahoe restaurant; 75% = 0.75
But in this case, we want probability of not going to the restaurant.
Thus;
p = 1 - 0.75
p = 0.25
Sample size; n = 7
Selection; x = 5
Thus,probability that 5 people will not go to the restaurant is;
P(X = 5) = 8C5 × 0.25^(5) × (1 - 0.25)^(8 - 5)
P(X = 5) = 56 × 0.0009765625 × 0.421875
P(X = 5) = 0.0231
P(X = 5) = 2.31%
Read more about binomial probability distribution at; https://brainly.com/question/15246027
What is true about the slope of the line graphed?
EO
A. The slope is positive.
B. The slope is negative
C. The slope is zero.
D. The slope cannot be determined.
Answer:
B, slope is negative
Step-by-step explanation:
if the line, starting from left, goes down then the slope is negative
Help, can anyone help? I’ve been stuck on this question :( I’ll make sure to give Brainly.
Answer:
1,524
Step-by-step explanation:
2,000 x 2%= 40
6,999 x 5%=349.95
20,999 x 5.4% = 1,133.95
40+349.95+1133.95=1,523.90
I need help ss is below
Answer:
9± √3
Step-by-step explanation:
Answer:
Step-by-step explanation:
Hope this helps u!!
Find x if (2.5)^x-3 = (0.4)^6+x
Answer:
2.5x=x+3.004096
Sorry, I don't know how to solve this equation.
Step-by-step explanation:
1. True or false:
The ordered pair (3, 4) is a solution for the equation:
5x + 2y = 23
2. True or false:
The ordered pair (0, 4) is a solution for the equation:
5x + 2y = 23
1) true
2)false
Step-by-step explanation:
1) 5(3)+2(4) = 23
= 15+8=23
23=23
thus, (3,4) is solution for 5x + 2y = 23
2) 5(0)+2(4) =23
= 0+8 is not 23
thus, (0,4) is not solution for 5x + 2y = 23
Question 2 (2 points)
Find the indicated limit, if it exists. (2 points)
1) 0
2) 8
3) 3
4) The limit does not exist.
Answer:
4) The limit does not exist.
General Formulas and Concepts:
Calculus
Limits
Right-Side Limit: [tex]\displaystyle \lim_{x \to c^+} f(x)[/tex]Left-Side Limit: [tex]\displaystyle \lim_{x \to c^-} f(x)[/tex]Limit Rule [Variable Direct Substitution]: [tex]\displaystyle \lim_{x \to c} x = c[/tex]
Step-by-step explanation:
*Note:
For a limit to exist, the right-side and left-side limits must be equal to each other.
Step 1: Define
Identify
[tex]\displaystyle f(x) = \left\{\begin{array}{ccc}5 - x ,\ x < 5\\8 ,\ x = 5\\x + 3 ,\ x > 5\end{array}[/tex]
Step 2: Find Left-Side Limit
Substitute in function [Left-Side Limit]: [tex]\displaystyle \lim_{x \to 5^-} 5 - x[/tex]Evaluate limit [Limit Rule - Variable Direct Substitution]: [tex]\displaystyle \lim_{x \to 5^-} 5 - x = 5- 5 = 0[/tex]Step 2: Find Left-Side Limit
Substitute in function [Right-Side Limit]: [tex]\displaystyle \lim_{x \to 5^+} x + 3[/tex]Evaluate limit [Limit Rule - Variable Direct Substitution]: [tex]\displaystyle \lim_{x \to 5^+} x + 3 = 5 + 3 = 8[/tex]∴ since [tex]\displaystyle \lim_{x \to c^+} f(x) \neq \lim_{x \to c^-} f(x)[/tex] , [tex]\displaystyle \lim_{x \to 5} f(x) = \text{DNE}[/tex]
Topic: AP Calculus AB/BC (Calculus I/I + II)
Unit: Limits
wallet #1 has 5 $100 bills and 10 $20 bills.
Answer:
Wallet #1 = $500 and Wallet #2 = $200
Step-by-step explanation:
I dont know if that was the answer you were looking for?
sorry if its not... :(
Which angles are adjacent to DFE?
Select all that apply.
9514 1404 393
Answer:
(c) ∠BFD
Step-by-step explanation:
Angle DFE is created from rays FD and FE. An adjacent angle will have one of those rays as one of its sides. Of the offered choices, only ∠BFD includes one of those two rays as one of its sides.
A cube has a base of 9 in2 and height of 12 inches.
What is the surface area, in square inches, of the cube?
(The photo is for you to understand it more! Thank you!)
Solving steps for 2x + 14 = 34 ? I know the answer but it's asking me to label the steps
Answer:
2x+14=34
Step-by-step explanation:
Subtract 14 from both sides
2x=20
Divide by 2 on both sides
Hope this helps :)
njdcjkdckjcbnjbjkx bj. cbj.bjkcbjvkbjdvbjkdddc
Answer:
lol
Step-by-step explanation:
can i have brainlyest pls?
Carmen cut a 12 meter piece of cloth into three pieces. The first two pieces were each
3 meters long. What was the length of the other piece?
Answer:
6 Meters long
Step-by-step explanation:
3+3=6
12-6=6
A reproductive clinic had a success rate of 25% of patients with live births in 2008. They want to update their success rate (the proportion of live births) for 2020. If they want their estimate to be within 2.5%, how many patient's results should they sample if they plan to use a 99% confidence interval? Round your answer up to the nearest integer.
Answer:
They should sample the results of 1990 patient results.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the z-score that has a p-value of [tex]1 - \frac{\alpha}{2}[/tex].
The margin of error is of:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
A reproductive clinic had a success rate of 25% of patients with live births in 2008.
This means that [tex]\pi = 0.25[/tex]
99% confidence level
So [tex]\alpha = 0.01[/tex], z is the value of Z that has a p-value of [tex]1 - \frac{0.01}{2} = 0.995[/tex], so [tex]Z = 2.575[/tex].
If they want their estimate to be within 2.5%, how many patient's results should they sample if they plan to use a 99% confidence interval?
They should sample n patients.
n is found for [tex]M = 0.025[/tex]. So
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.025 = 2.575\sqrt{\frac{0.25*0.75}{n}}[/tex]
[tex]0.025\sqrt{n} = 2.575\sqrt{0.25*0.75}[/tex]
[tex]\sqrt{n} = \frac{2.575\sqrt{0.25*0.75}}{0.025}[/tex]
[tex](\sqrt{n})^2 = (\frac{2.575\sqrt{0.25*0.75}}{0.025})^2[/tex]
[tex]n = 1989.2[/tex]
Rounding up:
They should sample the results of 1990 patient results.
What is the equation of the line that passes through the point (-6, -2) and has a
slope of -1/6?
Answer:
y=-1/6x-3
Step-by-step explanation:
y-y1=m(x-x1)
y-(-2)=-1/6(x-(-6))
y+2=-1/6(x+6)
y=-1/6x-6/6-2
y=-1/6x-1-2
y=-1/6x-3
please help me :(
Picture is below:)
These are the answer choices:
A. 12/13
B. 12/5
C. 13/5
D. 5/13
Answer: A) 12/13
Step-by-step explanation: Tangent is simply just opposite/adjacent. The opposite side of angle x is 12, and the hypotenuse is 13, so your answer is 12/13 :)
Carmel is watching a play at the theatre.
The play started at 16 30
The play is 115 minutes long.
When the play ends, Carmel takes 30 minutes to get to the bus stop.
A bus leaves the bus stop at 18 45
Does Carmel get to the bus stop in time to get this bus?
You must show all your working.
Need help
Step-by-step explanation:
play started 16:30
its 115 min long = 1:55 hours
16:30+ 1:55=18:25 hours
now he takes 30 min to reach bus stop
18:25 + 30 mins = 18:55
therefore, he reaches the bus stop 10 mins late
For which values of x is the function continuous?
Check all that apply.
1
2
3
Answer: Sorry, I'm not the best at this and I don't have a full answer but I can offer a tip!
X does not repeat if it is a function.
So, if you are finding the function it is one where x is different every time
Step-by-step explanation:
Based on the given graph, we can infer and logically conclude that the values of x for which this function is continuous is equal to zero (0).
What is a continuous function?A continuous function can be defined as a type of function in which there is no discontinuities or breaks between the intervals for the points plotted on a graph.
By critically observing the graph, we can infer and logically conclude that the values of x for which the function is continuous is zero (0) because it marks the point of continuity.
Read more on continuous function here: https://brainly.com/question/18102431
#SPJ2
Michelle throws a ball vertically upward from the top of a cliff. The height of the ball above the base of
the cliff is approximated by the model H=65+10t – 5t, where H is the height in metres and t is the
time in seconds. How long does it take the ball to reach a height of 50 m above the base of the cliff?
Answer:
1/2 seconds
Step-by-step explanation:
h(t) = 65 + 10t - 5t^2
h(t) = -5t^2 + 10t + 65
the max height is reached at the vertex.
the value of t at the vertex is:
t = -b/(2a)
t = -10/(2(-10))
t = -10/(-20)
t = 10/(20)
t = 1/2 seconds
27. When $2400 is shared among three boys
in the ratio 3: 4: 5, what is the smallest
share?
a. $1800
b. $1000
c. $600
d. $500
smallest share is $600
3) If the chocolate inside the package is 335954.96 mm, how much empty volume/space is inside the
container? Show all work and give answers to 2 decimal places
Answer:
A
Step-by-step explanation:
Consider a multiple-choice question exam consisting of 20 questions. Assume that each question has four possible choices, and only one of them is correct. If a student is going to guess solutions at the exam, what is the probability that he answers at most three of them are correct
Answer:
0.22514
Step-by-step explanation:
Given :
1 answer from 4 options
p = 1/4 = 0.25 ; q = 1 - 0.25 = 0.75
n = 20
P(x ≤ 3) = p(x =0) +p(x=1) + p(x=2) +p(x=3)
P(x = x) = nCr * p^x * q^(n-r)
p(x =0) = 20C0 * 0.25^0 * 0.75^20 = 0.00317
p(x =1) = 20C1 * 0.25^1 * 0.75^19 = 0.02114
p(x =2) = 20C2 * 0.25^2 * 0.75^18 = 0.06694
p(x =3) = 20C3 * 0.25^3 * 0.75^17 = 0.13389
P(x ≤ 3) = 0.00317+0.02114+0.06694+0.13389 = 0.22514
What is the distance from -2 to 0?
O A. 2, because |-2| = 2
ОВ.
1
2
because 1-2) =
2
O c. 2, because 1-21 = -2
D. -2, because |-2| = -2
Answer:
A. 2, because -2=2 2+-2=0 if that makes sense
wild touring the city Bernie buys lunch for his family from a food truck he purchase more Taco for 2.75 and four cheeseburgers if he spent a total of 23.75 how much was each cheeseburger
Answer:
Each cheeseburger was $5.25.
Step-by-step explanation:
He purchased:
A taco for $2.75.
Four cheeseburgers, each for x.
In total, he spent $23.75.
How much was each cheeseburger?
This is the value of x. We have that:
[tex]2.75 + 4x = 23.75[/tex]
[tex]4x = 21[/tex]
[tex]x = \frac{21}{4}[/tex]
[tex]x = 5.25[/tex]
Each cheeseburger was $5.25.
The probability of winning a game is 20% how many times should you expect to win if you play 36 times
Review the graph of function f(x), which is defined for –4 < x ≤ 2.
On a coordinate plane, a curve starts at open circle (negative 4, 5), curves down to (negative 2, negative 4), and then curves up through (0, negative 1) to closed circle (2, 2).
Which table identifies the left-hand and right-hand limits at the endpoints?
Limit of f (x) as x approaches negative 4 minus DNE
Limit of f (x) as x approaches negative 4 + DNE
Limit of f (x) as x approaches 2 minus 2
Limit of f (x) as x approaches 2 plus 2
Limit of f (x) as x approaches negative 4 minus 5
Limit of f (x) as x approaches negative 4 + 5
Limit of f (x) as x approaches 2 minus 2
Limit of f (x) as x approaches 2 plus 2
Limit of f (x) as x approaches negative 4 minus DNE
Limit of f (x) as x approaches negative 4 + 5
Limit of f (x) as x approaches 2 minus 2
Limit of f (x) as x approaches 2 plus DNE
Limit of f (x) as x approaches negative 4 minus 5
Limit of f (x) as x approaches negative 4 + DNE
Limit of f (x) as x approaches 2 minus DNE
Limit of f (x) as x approaches 2 plus 2
Answer:
C
Step-by-step explanation:
Edge 2020
Answer:Dne, 5,2,dne
Step-by-step explanation:
Evaluate the expression when b= 3 and x= -3
B-5x
Answer:
3-5(-3)
3 minus -15
-12
Step-by-step explanation:
what is the answer please? show step by step
Answer:
D
Step-by-step explanation:
f(x-3) = (x-3)^2 - 8
f(x-3) = (x-3)(x-3) - 8
f(x-3) = x^2 - 6x + 9 - 8
f(x-3) = x^2 - 6x + 1
2.
Find the area of the region bounded by the graphs of y = -x2 + 3x + 4 and y = 4. (5 points)
Answer:
4.5 sq. units
Step-by-step explanation:
area = -⅓x³+3/2 x² ] 0 to 3
= -⅓(3)³+ 3/2 (3)² -0
= -9 + 27/2
= -9 + 13.5
= 4.5 sq. units
I have a mixing bowl that holds 4 liters of liquid. It's not quite big enough for all my cooking needs, so I find the exact same mixing bowl on Amazon that is just twice the size of the bowl I have. How many liters of liquid can the bigger mixing bowl hold?
Answer:
8 liters
4x2=8
Step-by-step explanation:
which shapes have 2 obtuse angles? choose
Answer:
a trapizoid has 2 obtuse angles
Step-by-step explanation: