The conditions for a binomial setting have been met for this scenario are;
The probability of success, denoted p, remains the same from trial to trial.The n trials are independent.How to interpret Binomial Experiment?
The conditions for a binomial experiment to be true are;
The experiment consists of n identical trials.Each trial results in one of the two outcomes, called success and failure.The probability of success, denoted p, remains the same from trial to trial.The n trials are independent.Now, in this case we keep shuffling the standard deck of 52 playing cards and picking the first in each case and replacing until we get a queen. This means that each trial is independent and does not depend on the success or failure of another event.
Secondly, the probability of success remains the same in each trial because we can't predict when we will get a queen.
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PLEASEEEE HELPPP ME this is due today!!!
What is the breakdown of this math problem? 8 2/5 - 6 7/10 =
let's first off, convert the mixed fractions to improper fractions.
\(\stackrel{mixed}{8\frac{2}{5}}\implies \cfrac{8\cdot 5+2}{5}\implies \stackrel{improper}{\cfrac{42}{5}}~\hfill \stackrel{mixed}{6\frac{7}{10}} \implies \cfrac{6\cdot 10+7}{10} \implies \stackrel{improper}{\cfrac{67}{10}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{42}{5}-\cfrac{67}{10}\implies \cfrac{(2)42~~ - ~~(1)67}{\underset{\textit{using this LCD}}{10}}\implies \cfrac{84-67}{10}\implies \cfrac{17}{10}\implies 1\frac{7}{10}\)
The drama club is selling tickets to their annual talent show. They sold adult tickets (a) for $12.50 each and student tickets (s) for $6. They sold a total of 30 tickets and made $264.50.
Which system of equations best represents the situation above?
Answer:
12.5a + 6s = 264.5 and a + s = 30
Step-by-step explanation:
They also intersect at (17, 13)
(17 student tickets, 13 adult tickets)
Good Luck!
2 ( r - 1 ) + 3 = 19
Answer:
r = 9
Step-by-step explanation:
2 ( r - 1 ) + 3 = 19
2r - 2 = 19 - 3
2r - 2 = 16
2r = 16 + 2
2r = 18
r = 9
Spencer needs 2 gallons of paint to create a mural.
He has gallon of yellow paint and į gallon of blue paint.
Drag amounts of paint Spencer can add to the paint he already has to make exactly 2
gallons of paint
Answer:
I don't exactly know how to answer this, maybe I need more information. But if not, then all he can do is add one gallon of yellow paint and one gallon of blue paint. If that's all the paint he has, that is all he can add. Is there a diagram that's supposed to go with this? If not, hope I answered your quesiton.
Each time Cali babysits, she gives 35% of
the money to her sister who comes and
helps out. Find the expression that
shows how much money Cali keeps each
time she babysits.
A. (0.35%
B. X-(0.35)
C. x/0.35
D. X-0.35
(a) A shark tank contains 200m of pure water. To distract the sharks, James Bond is pumping vodka (containing 90% alcohol by volume) into the tank at a rate of 0.1m3 per second as the sharks swim around and around, obviously enjoying the experience. The thor- oughly mixed fluid is being drained from the tank at the same rate as it is entering. Find and solve a differential equation that gives the total volume of alcohol in the tank as a function of time t. (b) Bond has calculated that a safe time to swim across the pool is when the alcohol concentration has reached 20% (and the sharks are utterly wasted). How long would this be after pumping has started?
It would take approximately 444.44 seconds (or 7 minutes and 24.44 seconds) after pumping has started for the alcohol concentration to reach 20% in the tank.
(a) Let V(t) represent the volume of alcohol in the tank at time t. Initially, the tank contains 0 volume of alcohol, so we have V(0) = 0. The rate at which alcohol is entering the tank is given as 0.1 m³/s, and the concentration of alcohol in the vodka is 90%. Therefore, the rate of change of the volume of alcohol in the tank over time can be expressed as: dV/dt = (0.1 m³/s) * (90%) = 0.09 m³/s
(b) To find the time it takes for the alcohol concentration to reach 20%, we need to solve the differential equation from part (a) and find the time t when V(t) = 0.2 * 200 m³. Integrating both sides of the equation from part (a), we have: ∫dV = ∫0.09 dt. Simplifying the integral, we get: V(t) = 0.09t + C. Using the initial condition V(0) = 0, we can solve for the constant C: 0 = 0.09(0) + C, C = 0. Thus, the equation for the volume of alcohol in the tank as a function of time t is: V(t) = 0.09t
To find the time when the alcohol concentration reaches 20%, we set V(t) = 0.2 * 200 m³: 0.09t = 0.2 * 200, 0.09t = 40, t = 40 / 0.09, t ≈ 444.44 seconds, Therefore, it would take approximately 444.44 seconds (or 7 minutes and 24.44 seconds) after pumping has started for the alcohol concentration to reach 20% in the tank.
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Write y=2/3x+7 in standard form
Step-by-step explanation:
y = 2/3x + 7
Multiply both sides by 3 to get rid of the fraction 2/3
3y = 2x +21
subtract 2x from both sides
3y - 2x = 21
Answer ofc is 3x - 2y = 21
Please rate if you get the answer right.
The Factoring is True or False
Answer:
true
Step-by-step explanation:
Answer:
True!
Step-by-step explanation:
Brainliest plz!
"A parabola has the equation = ^ + − . What are the coordinates of the vertex? (You must solve by factoring)!!!!!" I NEED THE ANSWER TO THIS FAST WITH STEPS I'm a grade 10 academic student by the way
Answer:
1
Step-by-step explanation:
1
HELPPP FOR BRAINELST!! LAST ONE
Answer:
2√41
Step-by-step explanation:
To find the diagonal, use Pythagorean theorem,
hypotenuse² = leg₁² + leg₂²
x² = 10² + 8²
= 100 + 64
= 164
x =√164
\(x = \sqrt{2*2*41}\\\\x=2\sqrt{41}\)
Find the value of x in the equation
Answer:
5
Step-by-step explanation:
2x+5-5=15-5
2x/2=10/2
x=5
10q-10q
what is the answer
Quick SOS
Answer:
The answer is 0.
Step-by-step explanation:
10q-10q can be subtracted due to the fact that they have the same variable, the answer would be zero as you are decreasing both by the same amount.
Answer:
\(0\)
Step-by-step explanation:
Let's simplify step-by-step.
\(10q -10q\)
\(=10q+-10q\)
\(= 0\)
What is the approximate angle between two position vectors if their terminal points are (5, -2) and (7, 3)?
Hi,
Answer:
\(Angle=\frac{pi}{4}\) = π/4 = 45°
Have a good day.
Use the Pigeonhole Principle to answer each of the following. (a) How many people must be selected at random to guarantee that at least 2 of them have a birthday on the same day of the week? (b) How many people must be selected at random to guarantee that at least 6 of them have a birthday on the same day of the week?
(a) To guarantee that at least 2 people have a birthday on the same day of the week, at least 8 people must be selected.
(b) To guarantee that at least 6 people have a birthday on the same day of the week, at least 43 people must be selected.
(a) To find the minimum number of people needed to guarantee that at least 2 of them have a birthday on the same day of the week, we can apply the Pigeonhole Principle.
There are 7 days of the week, so each person can have their birthday on one of these 7 days. If we select 8 people, then there are 8 pigeons (people) and 7 pigeonholes (days of the week). Since we have more pigeons than pigeonholes, by the Pigeonhole Principle, at least 2 people must have their birthday on the same day of the week.
(b) Similarly, to find the minimum number of people needed to guarantee that at least 6 of them have a birthday on the same day of the week, we apply the Pigeonhole Principle. Again, there are 7 days of the week, and each person can have their birthday on one of these 7 days.
If we select 43 people, then we have 43 pigeons (people) and 7 pigeonholes (days of the week). Since we have more pigeons than pigeonholes, by the Pigeonhole Principle, at least 6 people must have their birthday on the same day of the week.
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Sam is a forklift operator at a Los Angeles warehouse. A 500 kg crate arrived from Taiwan. His forklift can load 2,500 lb. He wants to know if it is safe to lift the crate. How many pounds does the crate weigh?
PLZZZ HELP
1 kg = 2.2 pounds ( rounded to the nearest tenth)
500 kg x 2.2 = 1,100 pounds
1100 pounds is less than 2,500 so the forklift can lift it.
Answer:
2,500= 1133.981
Step-by-step
The answer is 1133.981 bc you would have to use the conversion rate of lb to kg, so just 2500 lb × 0.45359237
= 1133.980925 kg
0.45359237 this is the conversion rate therefore 1134 is the answer (was rounded)
Ian D. was at bat 15 times and hit 4 of those times what is the batting average
Answer:
3.750
Step-by-step explanation:
If Ian was at bat 15 times this means out of those 15 he only hit it 4
If he only hit it 4 times you've got to find the average by dividing both the numbers together 15 divided by 4 is 3.750
i think if i get this wrong im extremely sorry ive not done batting distance yet but i know there has to be 3 decimal places after it
Complete the square and please show work
x^2+10x
Answer:
x = -10, 0
Step-by-step explanation:
Step 1: Write quadratic
x² + 10x = 0
Step 2: Complete the Square
x² + 10x + 25 = 25
(x + 5)² = 25
Step 3: Square root both sides
x + 5 = ±5
Step 4: Subtract 5 on both sides
x = -5 ± 5
x = -10, 0
An object is moving at a speed of 5 kilometers every 4.5 hours. Express this speed miles per minute. Round your answer to the nearest hundredth. Someone please help me I’m struggling with this one
Answer:
speed is 0.01 miles per minute
Step-by-step explanation:
We know speed = distance/time
since we need speed in miles per minute we need to convert KM into miles
and hours in minutes
--------------------------------------------------------
distance = 5 km
1 km = 0.621371 miles
5KM = 5*0.621371 miles = 3.10686 miles = 3.12 miles(rounded to nearest hundredth)
1 hour = 60 minutes
4.5 hours = 4.5*60 minutes = 270 minutes
speed = distance in KM/time in minutes = 3.12 miles/270 minutes
speed = 0.012 miles per minute
rounding the answer to the nearest hundredth
speed is 0.01 miles per minute
wich expression is equivelint-3/4 divided by -8/12
Answer:
-1 1/8
Step-by-step explanation:
-3/4 / -8/12
= -3/4 * -12/8
= -3*12 / -4*8
= -36/32
= -1 4/32
= -1 1/8
Determine the number of Mg2+ and PO3−4 ions required to form a neutral ionic compound.
To determine the number of Mg2+ and PO3−4 ions required to form a neutral ionic compound, we need to consider the charges of the ions and their ratio in the compound.
In an ionic compound, the total positive charge must equal the total negative charge to achieve electrical neutrality. The Mg2+ ion has a charge of +2, indicating a loss of two electrons, while the PO3−4 ion has a charge of -3, indicating a gain of three electrons.
To form a neutral compound, the positive and negative charges must balance out. Since the charge of the Mg2+ ion is +2 and the charge of the PO3−4 ion is -3, the ratio between them must be such that the charges cancel out. This can be achieved by having three Mg2+ ions for every two PO3−4 ions.
Therefore, the number of Mg2+ ions required is three times the number of PO3−4 ions in order to achieve electrical neutrality in the compound.
It is important to note that the specific ratio and number of ions required may vary depending on the specific compound and its formula.
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Help PLS!!! DONT MAKE ANY CAP PLEASE!! I don't understand this problem.
Recall that the absolute value |a| of a number is its distance from zero. For example, |-3| = 3 and |9-7| = |7-9| = 2.
Enter the letters of the points that are on the graph of |x| = |y|.
Answer:
l9-7l is the answer
Step-by-step explanation:
Answer:
I and j I believe
Step-by-step explanation:
If you are given the length of a hypotenuse and the length of an adjacent side, what
trigonometry ratio could you use.
tangent
cosine
trigonometry
sine
Answer:
cosine
Step-by-step explanation:
Consider the vectors: a=(1,1,2),b=(5,3,λ),c=(4,4,0),d=(2,4), and e=(4k,3k)
Part(a) [3 points] Find k such that the area of the parallelogram determined by d and e equals 10 Part(b) [4 points] Find the volume of the parallelepiped determined by vectors a,b and c. Part(c) [5 points] Find the vector component of a+c orthogonal to c.
The value of k is 1, the volume of the parallelepiped is 12 + 4λ, and the vector component of a + c orthogonal to c is (1,1,1.5).
a) Here the area of the parallelogram determined by d and e is given as 10. The area of the parallelogram is given as `|d×e|`.
We have,
d=(2,4)
and e=(4k,3k)
Then,
d×e= (2 * 3k) - (4 * 4k) = -10k
Area of parallelogram = |d×e|
= |-10k|
= 10
As we know, area of parallelogram can also be given as,
|d×e| = |d||e| sin θ
where, θ is the angle between the two vectors.
Then,10 = √(2^2 + 4^2) * √((4k)^2 + (3k)^2) sin θ
⇒ 10 = √20 √25k^2 sin θ
⇒ 10 = 10k sin θ
∴ k sin θ = 1
Therefore, sin θ = 1/k
Hence, the value of k is 1.
Part(b) The volume of the parallelepiped determined by vectors a, b and c is given as,
| a . (b × c)|
Here, a=(1,1,2),
b=(5,3,λ), and
c=(4,4,0)
Therefore,
b × c = [(3 × 0) - (λ × 4)]i + [(λ × 4) - (5 × 0)]j + [(5 × 4) - (3 × 4)]k
= -4i + 4λj + 8k
Now,| a . (b × c)|=| (1,1,2) .
(-4,4λ,8) |=| (-4 + 4λ + 16) |
=| 12 + 4λ |
Therefore, the volume of the parallelepiped is 12 + 4λ.
Part(c) The vector component of a + c orthogonal to c is given by [(a+c) - projc(a+c)].
Here, a=(1,1,2) and
c=(4,4,0).
Then, a + c = (1+4, 1+4, 2+0)
= (5, 5, 2)
Now, projecting (a+c) onto c, we get,
projc(a+c) = [(a+c).c / |c|^2] c
= [(5×4 + 5×4) / (4^2 + 4^2)] (4,4,0)
= (4,4,0.5)
Therefore, [(a+c) - projc(a+c)] = (5,5,2) - (4,4,0.5)
= (1,1,1.5)
Therefore, the vector component of a + c orthogonal to c is (1,1,1.5).
Conclusion: The value of k is 1, the volume of the parallelepiped is 12 + 4λ, and the vector component of a + c orthogonal to c is (1,1,1.5).
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Use the measure of the angles of the trapezoid to find to measure of the base angles JEF and JFE. Add these measurements to your drawing.
Add the measurements to the drawing. Angle JEF and angle JFE both measure x degrees, while angle JED measures 180 - x degrees.
To find the measure of the base angles JEF and JFE in a trapezoid, we need to consider the fact that the opposite angles of a trapezoid are supplementary, meaning they add up to 180 degrees.
Since the trapezoid has two pairs of opposite angles, we can apply this property to solve for the base angles. Let's assume angle JEF measures x degrees. Since angle JEF is opposite to angle JFE, the measure of angle JFE is also x degrees.
Now, let's consider the other pair of opposite angles. Since the sum of the measures of the opposite angles is 180 degrees, the measure of angle JEF plus the measure of angle JED equals 180 degrees. Since angle JEF measures x degrees, we can set up the equation: x + JED = 180.
The given question is half of part , the full answer for the question is below.
To find the measure of JED, we subtract x from both sides: JED = 180 - x. Finally, we can add the measurements to the drawing. Angle JEF and angle JFE both measure x degrees, while angle JED measures 180 - x degrees.
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Devise an algorithm that finds all terms of a finite sequence of integers that are greater than the sum of all
previous terms of the sequence.
This algorithm efficiently finds all terms in a finite sequence of integers that are greater than the sum of all previous terms in the sequence.
To devise an algorithm that finds all terms of a finite sequence of integers that are greater than the sum of all previous terms of the sequence, follow these steps:
Start by defining the input sequence as a list or an array of integers. Let's call it `sequence`.
Initialize an empty list or array called `results` to store the terms that meet the condition.
Initialize a variable called `sum_of_previous_terms` and set its value to 0. This variable will be used to store the sum of all previous terms in the sequence as we iterate through it.
Loop through the sequence using a for loop, comparing each term with the sum of all previous terms.
a. For each term in the sequence, compare it with the value of `sum_of_previous_terms`.
b. If the term is greater than `sum_of_previous_terms`, add it to the `results` list or array.
c. Update the value of `sum_of_previous_terms` by adding the current term to it.
Continue the loop until all terms in the sequence have been checked.
After the loop is completed, return the `results` list or array, which contains all the terms that meet the condition.
Here is the algorithm in a more concise form:
Input: `sequence` (a list or array of integers)
Initialize: `results` (an empty list or array), `sum_of_previous_terms` (0)
For each term in `sequence`:
a. Compare the term with `sum_of_previous_terms`
b. If term > sum_of_previous_terms, add term to `results`
c. Update `sum_of_previous_terms` with the current term
Return `results`
This algorithm efficiently finds all terms in a finite sequence of integers that are greater than the sum of all previous terms in the sequence.
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Maggie buys a dress and a pair of shoes at The Home Store. Before adding the sales tax, she pays $48 for a dress that normally sells for $62 and she pays $34 for a pair of shoes that normally sells for $46. a) Before the sales tax, how much does Maggie save on her purchases by buying at the sale price? Show all work. b) To the nearest percent, what percent discount did Maggie get on her total purchase? Show all work. c) Including a 15% sales tax, what total amount will Maggie pay?
Answer:
a) $26
b) 24.07%
c) $94.3
Step-by-step explanation:
Given that:
Before tax:
Normal price of dress = $62
Discounted price of dress = $48
Normal price of a pair of shoes = $46
Discounted price of a pair of shoes = $34
a) Before the sales tax, total savings = ($64 - $48) + ($46 - $34) = $26
b) Total percentage discount on total sales.
Total bill for original price = $62 + $46 = $108
Percentage discount can be found by the formula:
\(\dfrac{\text{Total discount}}{\text{Total bill for original price}}\times 100\\\Rightarrow \dfrac{26}{108} \times 100 = 24.07\%\)
c) Total amount paid if the sales tax is 15%.
Amount paid with tax = Amount after discount + 15% of amount after discount
Amount after discount = $48 + $34 = $82
15% of $82 = $18.29
Amount paid with sales tax = $82 + $12.3 = $94.3
find x and y
2x+4y=8
x=3y-
Answer:
If the "-" after "3y" is a typo, then y = 8/7, x = 24/7
Step-by-step explanation:
what function does this graph represent?
Answer:
D
Step-by-step explanation:
The vertex is at (-2,4), so substituting into vertex form, only C and D match.
Also, the graph opens down, so the coefficient of x² is negative.
This eliminates C, leaving us with D
if s.p.=rs210,profit percent =8%c.p.=rsx and find cp