Answer:
31.25%
Step-by-step explanation:
one card is drawn from a pack of 52cards each of the 52 cards being equally likely to be drawn. what is the probability that the card drawn is a king?
The probability of drawing a king from a standard deck of 52 cards is 1/13.
In a standard deck of 52 playing cards, there are four kings: the king of hearts, the king of diamonds, the king of clubs, and the king of spades.
To find the probability of drawing a king, we need to determine the ratio of favorable outcomes (drawing a king) to the total number of possible outcomes (drawing any card from the deck).
The total number of possible outcomes is 52 because there are 52 cards in the deck.
The favorable outcomes, in this case, are the four kings.
Therefore, the probability of drawing a king is given by:
Probability = (Number of favorable outcomes) / (Number of possible outcomes)
= 4 / 52
= 1 / 13
Thus, the probability of drawing a king from a standard deck of 52 cards is 1/13.
This means that out of every 13 cards drawn, on average, one of them will be a king.
It is important to note that the probability of drawing a king remains the same regardless of any previous cards that have been drawn or any other factors.
Each draw is independent, and the probability of drawing a king is constant.
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PLEASE ANSWER QUICKLY AS POSSIBLE WILL GIVE BRAINLYEST TO FIRST CORRECT
Find the exact value of x.
x=
Question 2
Do the side lengths form a Pythagorean triple?
Answer:
Soln:
Step-by-step explanation:
Here,
Base(b) =9
Opposite/Perpendicular (p)= x
Hypotenus (h) = 24
We know,
(p)^2 = (h)^2 - (b)^2
(x)^2 = (24)^2 - (9)^2
x^2 = 576 - 81
x^2 = 495
x = root under 495
Answer:
1- 22.2486 2- No
Step-by-step explanation:
1:
\(b = \sqrt{ c^{2}- a^{2}\)
C is the hypotenuse, or longest side of the triangle (24).
A is the one length we have besides the hypotenuse(9).
\(b = \sqrt{ 24^{2}- 9^{2}\)
b = 22.2486
2:
No, because if it was a Pythagorean triple, it would follow the equation \(a^{2} +b^{2} =c^{2}\).
\(9^{2} + 22.2485^{2} \neq 24^{2}\).
Find all solutions to 4x^2 + 2x -2 = 1?
Answer:
=−1±1 3√4
Step-by-step explanation:
Answer:
The answer is B
Step-by-step explanation:
Move the constant to the left, 4x^2+2x-2-1=0
Calculate the difference, 4x^2+2x-3=0
then solve using quadratic equation (must too difficult to type out)
11/48 as a percentage
Answer:
22.9166%
Step-by-step explanation:
That is the answer, take note that the six is infinite.
Triangle ABC has vertices A(0,7),B(5,-5),and C(10,7). Find the area of triangle ABC?.
Answer:
60 units²
Step-by-step explanation:
A = ½bh
Let the horizontal line AC be the base which has a length of 10 along the line y = 7
The vertical distance between this line and point B is 7 - (-5) = 12
A = ½(10)(12)
Find an ordered pair (x, y) that is a solution to the equation.
-x+2y=3
Answer:
answer attached
Step-by-step explanation:
use Excel to easily find MANY ordered pairs for the solution to the equation
Make p the subject of the relation 3t-pq= 2(p+l
Find the relative rate of change at the given value of . Assume is in years and give your answer as a percent
Answer:
84.37 %.
Step-by-step explanation:
The question is shown in the attached figure.
We have,
\(f(t)=2t^3+10,\ t=3\)
We can find the value of f(t) at t = 3,
\(f(3)=2(3)^3+10\\\\f(3)=64\)
Finding f'(t).
\(f'(t)=6t^2\)
Finding f'(t) at t = 3
\(f'(3)=6(3)^2\\\\=54\)
The relative change is calculated as :
\(\dfrac{f'(t)}{f(t)}=\dfrac{54}{64}\\\\=0.8437\)
In percentage rate of change,
\(\dfrac{f'(t)}{f(t)}=0.8437\times 100\\\\=84.37\%\)
Hence, the required percent change is 84.37 %.
6. Determine the system of equations based on the following relationships and then solve
for the two integers.
a. Fourteen more than twice the first integer gives the second integer
b. The second integer increased by one is the square of the first integer
Answer: (-3,8) and (5,24)
The two pairs of integers that satisfy the given conditions are (-3, 8) and (5, 24).
To solve the system of equations, let's assign variables to the two integers. Let the first integer be represented by 'x' and the second integer by 'y'.
According to the given information:
a. Fourteen more than twice the first integer gives the second integer:
This can be expressed as: 2x + 14 = y
b. The second integer increased by one is the square of the first integer:
This can be expressed as: y + 1 = x^2
Now, we have a system of equations:
1) 2x + 14 = y
2) y + 1 = x^2
To solve this system, we can substitute the value of 'y' from equation 1) into equation 2):
2x + 14 + 1 = x^2
2x + 15 = x^2
Rearranging the equation, we have:
\(x^2 - 2x - 15 = 0\)
Factoring the quadratic equation, we get:
(x - 5)(x + 3) = 0
Setting each factor equal to zero:
x - 5 = 0 --> x = 5
x + 3 = 0 --> x = -3
Substituting the values of 'x' back into equation 1), we can find the corresponding values of 'y':
For x = 5:
2(5) + 14 = y
10 + 14 = y
y = 24
For x = -3:
2(-3) + 14 = y
-6 + 14 = y
y = 8
Therefore, the two pairs of integers that satisfy the given conditions are (-3, 8) and (5, 24).
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For a standard normal distribution, the probability of obtaining a z value of less than 1.68 is _____.
Probabilities are used to determine the chances of an event.
The probability of obtaining a z value of less than 1.68 is 0.95352
The probability is represented as:
\(\mathbf{P(z < 1.68)}\)
To do this, we make use of the z-score of probabilities table and/or calculator.
Using the calculator, we enter 1.68 as the z-score.
The result is:
\(\mathbf{P(z < 1.68) = 0.95352}\)
This means that:
The probability of obtaining a z value of less than 1.68 is 0.95352
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Determine whether each function is even, odd, or neither.
F(x)=√x^2 -9
g(x) = |x-3|
F(x)=x/x^2 -1
g(x) = x + x²
Answer: even, neither, odd, neither
Step-by-step explanation:
You sailed 0.055 units to the left and found treasure at 0.085 units find where the ship started
Find the commission on a $1250 sale with a commission rate of 5%
Answer:
He will have in total $1312.50
He earns a total of $62.50
Step-by-step explanation:
1250 x 1.05 = 1312.50
1250 x 0.05 = 62.50
please help me solve this
The area of the triangle STU is 11.5 square units
How to find the area of a triangle using vertices?The area of a triangle with vertices (x₁, y₁), (x₂, y₂) and (x₃, y₃) is given by:
A = (1/2) [x₁(y₂ – y₃) + x₂(y₃ – y₁ ) + x₃(y₁ – y₂)]
Where:
S: (x₁, y₁) = (-6, -9)
T: (x₂, y₂) = (-3,-4)
U: (x₃, y₃) = (-7, -3)
A = (1/2) [x₁ (y₂ – y₃) + x₂(y₃ – y₁ ) + x₃(y₁ – y₂)]
A = (1/2) [-6 (-4 – (-3)) + (-3)(-3 – (-9)) + (-7)(-9 – (-4))]
A = (1/2) [-6 (-4 + 3) + (-3)(-3 + 9) + (-7)(-9 + 4)]
A = (1/2) [6 -18 + 35]
A = 11.5 square units
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What is the area of the square that measures 3.1 m on each side
The area of the square with a side length of 3.1 meters is 9.61 square meters.
To find the area of a square, we need to multiply the length of one side by itself. In this case, the square has a side length of 3.1 m.
Area of a square = side length × side length
Substituting the given side length into the formula:
Area = 3.1 m × 3.1 m
To perform the calculation:
Area = 9.61 m²
It's worth noting that when calculating the area, we are working with squared units. In this case, the side length is in meters, so the area is expressed in square meters (m²). The area represents the amount of space enclosed within the square.
Remember, to find the area of any square, you simply need to multiply the length of one side by itself.
The area of the square with a side length of 3.1 meters is 9.61 square meters.
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NO LINKS OR ASSESSMENT!!
Part 3: Domain and Range of Graphs
Domain:
- 1 ≤ x < 3 or x∈ [-1, 3)Range:
-4 < y < 4 or y ∈ (-4, 4)Function:
N0- doesn't pass the vertical line test#8Domain:
- 4 < x < 3 or x∈ (-4, 3)Range:
-2 ≤ y < 4 or y ∈ [-2, 4)Function:
YES - passes the vertical line testSolve for x....................................
Answer:
x = 4.5 is the answer to the question
The basic rate pay is K8.20. If the overtime is paid at time-and-a-quarter, what is the overtime rate of pay?
The overtime rate of pay is K10.25.
The overtime rate of pay can be calculated by multiplying the basic rate pay by the time-and-a-quarter factor. In this case, the basic rate pay is K8.20.
To determine the overtime rate of pay, we need to calculate one-quarter (1/4) of the basic rate pay, and then add that amount to the basic rate pay. One-quarter of K8.20 is calculated as (1/4) * K8.20 = K2.05.
By adding the calculated overtime amount to the basic rate pay, we get the overtime rate of pay: K8.20 + K2.05 = K10.25.
Therefore, the overtime rate of pay is K10.25.
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How many grams are in 7.4 x10 19 atoms of Copper? round the the thousandths place
There are 0.09779 grams in 7.4 x 10^19 Atoms of copper.
The number of grams in a given number of atoms of an element, we need to use the concept of molar mass and Avogadro's number.
The molar mass of an element represents the mass of one mole of that element. For copper (Cu), the molar mass is approximately 63.546 grams per mole.
Avogadro's number, denoted as N<sub>A</sub>, is the number of atoms or molecules in one mole of a substance. It is approximately 6.022 x 10^23 atoms/molecules per mole.
To calculate the mass of a given number of atoms, we can use the following steps:
Step 1: Determine the number of moles of copper atoms.
Given: 7.4 x 10^19 atoms of copper
Number of moles = (Number of atoms) / (Avogadro's number)
Number of moles = (7.4 x 10^19) / (6.022 x 10^23)
Step 2: Calculate the mass using the molar mass of copper.
Mass = (Number of moles) x (Molar mass)
Mass = (7.4 x 10^19) / (6.022 x 10^23) x 63.546
Now, we can perform the calculations:
Mass ≈ 0.09779 grams
Therefore, there are approximately 0.09779 grams in 7.4 x 10^19 atoms of copper.
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A boy walks 5km due north and then 4km due east. Find the bearing of his current position from the starting point, how far is the boy now from the starting point
56 x 48 =
29x31=
73 x 25 =
95 x 43 =
67 x 83 =
29 x 56 =
40 x81=
74 x 69 =
Someone needs to solve this !!
1
Select the correct answer from each drop-down menu.
A certain distribution has a mean value of 100 and a standard distribution of 15.
Assuming the values are distributed normally, 95% of values will fall between
and
V
Reset
Next
Answer: 70, 130
Step-by-step explanation:
In the given normal distribution with a mean of 100 and standard distribution of 15, 95% of values will fall between 70 and 130 using the Empirical rule of 95%.
Step-by-step explanation:
A normal distribution with a mean of 100 and a standard distribution of 15 is given.
We will find where 95% of data fall in the given normal distribution.
What is the Empirical rule of 95%?It states that in a normal distribution approximately 95% of observations fall within two standard deviations from the mean on both sides of the normal curve.
The mean in a normal distribution is the center of the normal curve.
The standard deviation in a normal distribution is the distance from the mean to the required point on either side.
We have,
Mean = 100
Standard deviation = 15
Applying the 95% rule we get,
On the right side of the normal curve
Mean + 2 x standard deviation = 100 + 2x 15 = 100 + 30 = 130.
On the left side of the normal curve,
Mean - 2 x standard deviation = 100 - 2x15 = 100 - 30 = 70.
Thus, we see that by using the Empirical rule of 95%, 95% values will fall between 70 and 130.
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Complete the point-slope equation of the line through -8,1 and -6,5
Answer:
y+1=3(x+8)
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(5-(-1))/(-6-(-8))
m=(5+1)/(-6+8)
m=6/2
m=3
y-y1=m(x-x1)
y-(-1)=3(x-(-8))
y+1=3(x+8)
45. Find the sum of three consecutive odd integers if the
sum of the first two integers is equal to twenty-four les
than four times the third integer.
An odd integer can be expressed as x = 2n+1 where n is an integer. (Therefore making 2n an even number and 2n+1 an odd number).
Three consecutive odd integers can then be expressed as (2n+1), (2n+3), and (2n+5).
The sum of the first two integers is (2n+1) + (2n+3) = 4n+4 = 4(n+1). It is supposed to be 24 less than 4 times the third integer, or
4(2n+5)-24.
Setting both equal and solving for n:
4(n+1) = 4(2n+5)-24
24 = 4·6, so you can factor out 4 in the right-hand expression.
4(n+1) = 4(2n+5-6) or 4(n+1) = 4(2n-1)
Cancel out factor 4 and solve for n.
n+1 = 2n-1 this yields n=2
Now plug in into your three consecutive odd integer expressions: (2n+1) = 5, (2n+3) = 7, (2n+5) = 9. The sum is therefore 5+7+9 = 21.
Double check your answer:
Sum of first two integers: 5+7 = 12
24 less than 4 times third integer: 4·9 - 24 = 36-24 = 12.
Marissa decides to save AND invest for retirement. She makes an initial deposit of $2000 in her savings account which earns 1.5% annually. Her contributions are $150 a month. Then, she makes an initial deposit of $1,000 in the US stock market through an index fund contributing $300 a month with a 6.8% return annually. What is the balance of Marissa’s retirement account after 30 years?
Using compound interest formula, her balance after retirement is $430797.77
What is Marissa's BalanceTo calculate the balance of Marissa's retirement account after 30 years, we need to determine how much her savings account and index fund will be worth after 30 years, taking into account the interest earned and her monthly contributions.
First, we'll calculate the balance of her savings account:
Initial deposit: $2000
Interest rate: 1.5%
Monthly contribution: $150
Number of months: 30 years * 12 months/year = 360 months
Using the compound interest formula, the balance of her savings account after 30 years will be:
2000*(1+0.015/12)^360 + 150*(((1+0.015/12)^360-1)/(0.015/12))
A = $71280.33
Next, we'll calculate the balance of her index fund:
Initial deposit: $1000
Interest rate: 6.8%
Monthly contribution: $300
Number of months: 30 years * 12 months/year = 360 months
Using the compound interest formula, the balance of her index fund after 30 years will be:
A = 1000*(1+0.068/12)^360 + 300*(((1+0.068/12)^360-1)/(0.068/12))
A = $359517.44
Then we can add the balance of both the savings account and the stock market to get the total balance of Marissa's retirement account.
Her balance = $71280.33 + $359517.44 = $430797.77
Please note that the above answer is an estimation, in reality there are other factors such as taxes, inflation, fees, and market conditions that should be considered in a real-world scenario.
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A business has a budget of $720 to spend on their marketing campaign. Each month, x, the business spends $40 on different advertisements. The amount of money remaining in the budget
for marketing can be modeled by the function Mx)=-40x+720. Based on the graph of the linear function M(x) and the context of the problem, what is the domain?
O [10, 18]
O [10, 720]
0 [10, 8]
O [R]
A reasonable domain for this function is [0, 18)
Domain of a functionThe domain of a function is a value of the independent variable of the function for which it exists.
Given the equation below:
M(x)= -40x+720
Since the function represents the The amount of money remaining in the budget for marketing then the function f(x) must be greater than zero;
−40x + 720 > 0
-40x> -720
x < 720/40
x < 18
This shows that a reasonable domain for this function is [0, 18)
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Name the slope and one point that is on the line
represented by the equation: x = -2
A) m = undefined and point (-2,5)
B) m = 0 and point (-2,4)
C) m = undefined and point (5,-2)
D) = zero and point (5,0)
Answer: Choice A
m = undefined
point (-2,5)
==================================================
Explanation:
The equation x = -2 describes a vertical line in which every point on this line has x coordinate -2. Two points on this line are (-2,0) and (-2,1)
Another point on this line is (-2,5) since this also has x coordinate -2.
------------------
All vertical lines have undefined slope.
Let's pick two points such as (-2,0) and (-2,1) and find the slope through them
m = (y2-y1)/(x2-x1)
m = (1-0)/(-2-(-2))
m = (1-0)/(-2+2)
m = 1/0
m = undefined, since we cannot divide by zero.
Which is the best estimate of (Negative three-fifths) (17 and StartFraction 5 over 6 EndFraction)?
A:–18
B:–9
C:9
D:18
Answer:
B is the correct answer
Step-by-step explanation:
help please and thank you
Answer: the answer would be y=6x-2
Step-by-step explanation: i dont know the xplanation i did the answer befor i remeberd the answer
takes 9 persons 8 hours to bake 150 cakes. How many hours does it take 12 persons to bake 375 cakes?
Answer:
15 hrs
Step-by-step explanation:
9 persons = 150/8 = 18.75 cakes/hr
12 persons = x
x = 12×18.75/9 = 25 cakes/hr
25 cakes = 1 hr
375 cakes = y
y = 375/25 = 15 hrs
Therefore it takes 15 hrs to bake 375 cakes.
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