Complete Question
The complete question is shown on the first uploaded image
Answer:
The number of color are possible \(\left n} \atop }} \right. C _r = 1215450\)
Step-by-step explanation:
From the question we are told that
The number of colors is r = 4
The sample size n = 75
The number of color that are possible can be mathematically evaluated as
\(\left n} \atop }} \right. C _r = \frac{n !}{ (n-r)! r!}\)
substituting values
\(\left n} \atop }} \right. C _r = \frac{75 !}{ (75-4)! 4!}\)
\(\left n} \atop }} \right. C _r = \frac{75 !}{ (71)! 4 !}\)
\(\left n} \atop }} \right. C _r = \frac{75 *74 * 73* 72 * 71!}{ (71)! (4*3*2 *1)}\)
\(\left n} \atop }} \right. C _r = 1215450\)
consider randomly selecting a student who is among the 14,000 registered for the current semester in a college. let be the number of courses the selected student is taking, and suppose that has the following probability distribution: X 1 2 3 4 5 6 7 F(x) 0.02 0.01 0.20 0.17 0.39 0.20 0.01 find the 30th percentile of this distribution.
So,the value of the 30th percentile of the given data will be =P30=4
The cumulative distribution function of a real-valued random variable X, or simply the distribution function of X, assessed at x, is the likelihood that X will have a value less than or equal to x in probability theory and statistics.
Using the Cumulative Distribution Function to Calculate Probabilities
F(x) is a cumulative distribution function that calculates the likelihood that the random variable X is smaller than or equal to x:
To get the cumulative probability that X is less than or equal to 1, multiply P(X=0) by P(X = 0) by (P=1):
First, we will determine the value of the cumulative probability P(X<=x):
x f(x) P(X<=x)
1 0.02 0.02
2 0.01 0.03
3 0.2 0.23
4 0.17 0.4
5 0.39 0.79
6 0.2 0.99
7 0.01 1
30th percentile will be the x value,
below which less than or equal to 30% of the data falls.
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Compler the following statements. 300 is ten times as much as
Answer: 30
Step-by-step explanation: just divide 300 by 10
Find a and b using the factor theorem.
\(f(x)=x^3+ax^2+bx-12\) has factor \((x-1), (x+1)\)
The values of a and b using the factor theorem for the polynomial f(x), we set f(1) and f(-1) equal to zero. Solving the resulting system of equations, we find that a = 12 and b = -1.
To find the values of a and b using the factor theorem, we need to use the given factors (x - 1) and (x + 1) and the fact that they are roots of the polynomial f(x).
The factor theorem states that if (x - c) is a factor of a polynomial, then f(c) = 0. Therefore, we can set x = 1 and x = -1 in the polynomial f(x) to get two equations.
First, let's substitute x = 1 into f(x):
f(1) = (1)^3 + a(1)^2 + b(1) - 12
f(1) = 1 + a + b - 12
Next, let's substitute x = -1 into f(x):
f(-1) = (-1)^3 + a(-1)^2 + b(-1) - 12
f(-1) = -1 + a - b - 12
Since (x - 1) and (x + 1) are factors, f(1) and f(-1) must equal zero. Therefore, we can set the two equations equal to zero and solve for a and b:
1 + a + b - 12 = 0
-1 + a - b - 12 = 0
Rearraning the equations, we have:
a + b = 11
a - b = 13
Now, we can solve this system of equations. Adding the two equations, we get:
2a = 24
a = 12
Substituting the value of a into one of the equations, we find:
12 - b = 13
b = -1
Therefore, the values of a and b are 12 and -1 respectively.
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The number 2/5 is both an blank and an blank
The number 2/5 is both a ratio and a fraction.
How to describe the numberThe number 2/5 is both a ratio and a fraction. Fractions are meant to signify the numerator and denominator in an expression. in the above expression, we have the denominator as 5 and the numerator as 2.
The expression is also a ratio because it indicates the quantitative relationship between the figures.
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The function g(x) is graphed on the coordinate grid. What is the domain of g(x)? x≥5 x>5 x≥0 x>0
The domain of the function g(x) is x >= 5
How to determine the domain?The complete question is added as an attachment
From the graph, we have the smallest value of x to be 5.
And the value of x increases to the right
This means that:
x >= 5
Hence, the domain of the function g(x) is x >= 5
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3 Ms. Thompson bought pound of pasta salad at the deli. She bought a pound more of macaroni salad than she bought of pasta salad. She spent $5.04 on the macaroni salad. What is the cost per pound of the macaroni salad?
A $2.88
B. $3.29
C. $3.76
D. $6.75
How many 1/2's are in 7? chooses 14, 10, 3.5, 7
Answer:
14
Step-by-step explanation:
What is the vertex of the graph of the function f(x) = x2+8x-2?
Answer:
the answer is (-4,-18)
Answer:
The vertex is at (-4, -18).
Step-by-step explanation:
f(x) = x^2 + 8x - 2
Covert to vertex form:
f(x) = (x + 4)^2 - 16 - 2
f(x) = (x + 4)^2 - 18.
So the
vertex is (-4,18
The radius of a circle is 5 ft. Find its area to the nearest tenth.
Asap
Answer:
A≈78.54
Step-by-step explanation:
Answer:
78.5
Step-by-step explanation:
because i said so
If the point A (5,4) is rotated 90 degrees clockwise about the point (0,1),what are the coordinates of the point A'?
Answer:
To rotate a point 90 degrees clockwise about another point, you can follow these steps:
1. Subtract the coordinates of the center of rotation from the coordinates of the point you want to rotate to translate the center of rotation to the origin.
A translated point A would be: (5 - 0, 4 - 1) = (5, 3)
2. Perform the rotation by swapping the x and y coordinates and negating the new x-coordinate.
The rotated point A' would be: (3, -5)
3. Add the coordinates of the original center of rotation to the rotated coordinates to translate the origin back to the center of rotation.
The final coordinates of point A' would be: (3 + 0, -5 + 1) = (3, -4)
Therefore, the coordinates of point A' after rotating 90 degrees clockwise about the point (0,1) are (3, -4).DUE IN 5 MINUTES PLEASE HELP
Answer:
it's a
Step-by-step explanation:
He lost 50 lbs over a 5 moth period
A pet store has 15 dogs and 6 cats, which is a ratio of _____?
Answer:
5:2
Step-by-step explanation:
If you like my answer than please mark me brainliest thanks
Answer:
15:6 or 5:2
Step-by-step explanation:
The number of dogs and cats can be simplified by dividing the two values by 3.
●
Jamie went out to her grandfather's farm.
Her grandfather has pigs and chickens on his farm.
She noticed that there were a total of 26 heads and
68 feet among them. How many chickens and how
many pigs did her grandfather have?
Answer:
8 pigs
Step-by-step explanation:
Since every animal has only 1 head, a total of 26 heads suggests that there are 26 animals in total.
Suppose all animals are chickens.
Total no. of feet = 26 chickens × 2 feet
= 52 feet
Difference in total no. of feet = 68 feet - 52 feet
= 16 feet
Difference in no. of feet each animal has
= 4 feet (a pig) - 2 feet (a chicken)
= 2 feet
∴ No. of pigs = 16 feet ÷ 2 feet
= 8 pigs
5. Find the length of KL shown in red below. Show all work.
M
162°
Mi
5 ft.
K
L
PREVI
Answer:
1.57ft
Step-by-step explanation:
The circumference is twice the radius times pi.
C=2πr
C=2·π·5
C=10π
C=31.4159265359
We know that KL is 18° of that (180-162).
So we get the formula
31.4159265359÷360x18=1.57
What is the answer to -4 x ( -6 )
Answer:
24x
Step-by-step explanation:
Multiply − 6 by − 4 .
Answer:
24
Step-by-step explanation:
you multiply negative 4 by negative 6
a 8. The plans of a house are drawn to a scale of 1:50. (a) Find the actual length, in metres, represented by 14 cm on the plan. (b) What length, in centimetres, on the plan represents an actual length of 11 metres? [N/85/P1]
Answer:
a) 7 m
b) 22 cm
Step-by-step explanation:
Given plans at a scale of 1 : 50, you want (a) the actual length corresponding to a plan length of 14 cm, and (b) the plan length corresponding to an actual length of 11 m.
ProportionThe actual lengths are wanted in meters, so we can rewrite the scale to translate between plan cm and actual m.
plan : actual = 1 cm : 50 cm
= 1 cm : 0.5 m
= 2 cm : 1 m
a) 14 cmMultiplying the scale by 7, we have ...
2 cm : 1 m = 14 cm : 7 m
The actual length is 7 meters.
b) 11 mMultiplying the scale by 11, we have ...
2 cm : 1 m = 22 cm : 11 m
The plan length is 22 cm.
Scarlett has a coin collection. She keeps 7 of the coins in her box, which is 20% of the collection. How many total coins are in her collection?
The total number of coins is 35
How to determine the total number of coins?From the question, we have the following parameters that can be used in our computation:
Number of coins in the box = 7
Proportion of coins in the box = 20%
These parameters mean that
Number of coins in the box = Proportion of coins in the box * Total number of coins
Substitute the known values in the above equation, so, we have the following representation
7 = 20% * Total number of coins
Divide both sides by 18%
Total number of coins = 35
Hence, the total number of coins is 35
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Steph makes 90\%90%90, percent of the free throws she attempts. She is going to shoot 333 free throws. Assume that the results of free throws are independent from each other. Let XXX represent the number of free throws she makes.
Find the probability that Steph makes exactly 111 of the 333 free throws.
Using the concept of binomial probability, the probability of making exactly 11 throws is \(6.073 \times 10^{-15} \)
Recall :
P(x = x) = nCx * p^x * q^(n-x)p = probability of success = 0.9n = number of trials = 33q = 1 - p = 0.1The probability of making exactly 11 throws can be defined thus :
P(X = 11) = 33C11 * 0.9^11 * 0.1^22Using a binomial probability calculator :
P(X = 11) = \(6.073 \times 10^{-15} \)
Therefore, the probability is \(6.073 \times 10^{-15} \)
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Can y’all figure out the answer for me please
Answer:
Step-by-step explanation:
true
if angle BCA is 90° and angle EFD is 90°
and if C to A is 14, half of that is 7 which is what F to D is
Y intercept (3,1) and (-4,-6)?
Answer:
y-intercept: (0, -2)
Step-by-step explanation:
Determine by how much x (the run) and y (the rise) change as you go from (-4, -6) to (3, 1): The change in x is 7 and that in y is also 7. Thus, the slope is
m = 7/7, or m = 1.
Using the point-slope form and the point (3, 1), we get:
y - 1 = 1(x - 3), or y = 1 + x - 3, or y = x - 2
Comparing this to y = mx + b, we see that the y-intercept is -2.
Find the area of the triangle. 13 m 16 m
Answer:
Area = 104
Step-by-step explanation:
The equation to find the area of a triangle is A = 1/2 BH
so if we plug in to numbers into the equation we get
A = 1/2 13*16 no we can multi plier 13*16 and we get 208
and last we can multiply 1/2 to 208 and our final answer is 104
High Hopes^^
Barry-
The equation x + y = z relates the whole numbers x, y, and z. How does z compare to x?
If it helps, consider an example where you substitute 3 for x, 5 for y, and 8 for z.
y is z less than x.
y is z more than x.
x is y less than z.
x is y more than z.
Answer:
C. x is y less than z
Step-by-step explanation:
x+y=z
by using transposition
x = z-y
whatever x is, it is equal to the value of y taken from z
In a poll of 489 adults, 132 of then said they have a tattoo. Find critical value and margin of error, and then construct a 95% confidence interval for the proportion of all adults that have a tattoo.
Using the probability of adults of having tattoo, critical value is 1.76 and margin of error is 0.0353 and a 95% confidence interval for the proportion of all adults that have a tattoo is (0.2347, 0.3053)
In the given question,
In a poll of 489 adults, 132 of then said they have a tattoo.
We have to find critical value and margin of error, and then construct a 95% confidence interval for the proportion of all adults that have a tattoo.
From the question
Total number of adults = 489
The adults that have tattoo = 132
So the proportion in the sample is
p = 132/489
p = 0.269
p ≈ 0.27
Now finding the proportion of adults not having tattoo.
q = 1−p
q = 1−0.27
q = 0.73
Now finding the critical value(z).
The value of z from the standard table for 95% confidence interval.
We can write 95% as 0.95
Z = \(z_{\alpha /2}\)
Z = \(z_{0.95 /2}\)
Z = \(z_{0.475}\)
From the standard table of z
Z = 1.96.
Now finding the margin error.
Margin Error(E) = \(Z\times\sqrt{\frac{pq}{n}}\)
As we know that Z = 1.96, p = 0.27, q = 0.73, n = 489
Now putting the value
E = \(1.76\times\sqrt{\frac{0.27\times0.73}{489}}\)
Simplifying
E = \(1.76\times\sqrt{\frac{0.1971}{489}}\)
E = \(1.76\times\sqrt{0.000403}\)
E = 1.76×0.0201
E = 0.0353
Now finding a 95% confidence interval for the proportion of all adults that have a tattoo.
Confidence Interval = p−E< P < p+E
Confidence Interval = 0.27−0.0353< P < 0.27+0.0353
Confidence Interval = 0.2347< P < 0.3053
Hence, critical value is 1.76 and margin of error is 0.0353 and a 95% confidence interval for the proportion of all adults that have a tattoo is (0.2347, 0.3053)
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Find the probability of getting 2 or 4 or 6 when a dice is rolled
Answer:
The probability of getting a 2, 4, or 6 when a dice is rolled is 1/2, or 50%. This is because there are six possible outcomes when a dice is rolled, and three of them are favorable outcomes (2, 4, or 6). Therefore, the probability of getting a 2, 4, or 6 is 3/6, which simplifies to 1/2 or 50%.
If x
2 = 25 , where x ε z then x =
The value of the quadratic equation given as x^2 = 25 is 5
What are quadratic equations?Quadratic equations are second-order polynomial equations and they have the form y = ax^2 + bx + c or y = a(x - h)^2 + k
How to solve the quadratic equation?The quadratic equation is given as
x2 = 25
Rewrite the equation properly
So, we have
x^2 = 25
Take the square roots of both sides
x = 5
Hence, the solution of the equation is 5
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In a parallelogram ABCD, AB is parallel to CD. Which two sides are opposite sides?
Answer:
According to the picture you have AD AND BC
Step-by-step explanation:
Circle A has been transformed to Circle B.
What is the scale factor of Circle A to Circle B?
Scale Factor
=
Image Radius
Pre- Image Radius
Answer: 21
Step-by-step explanation: im not guessing im a certified expert at calculus and have a masters degree in mathmatics so yeah
Answer:
21
Step-by-step explanation:
I did the test
Hope this helps :)
Juan is learning about like terms in his math class. He must check all the combinations below that are like terms which ones should he check
Step-by-step explanation:
please attach a picture for us to see the choices
what is the answer??
Answer:
276 square inches
Step-by-step explanation:
The area can be decomposed as a square of side length 14 in, having a surface of area of \(14^2 = 196 in^2\), and a triangle of base 14 and height 12, giving an area of \(\frac12\times 12\times14 =84 in^2\). Added them together we get a grand total of \(196+84=280 in^2\)
Answer:
280 in²
Step-by-step explanation:
This is a composite figure composed of a triangle and a square. Let's find the area of each and add them up.
The area of the square is 196 square inches. The area of the triangle is 84 square inches. Add those two together, and you have 280 square inches.
What is the product of 7/9 and 6
Answer: 42/9
Step-by-step explanation: 7/9 x 6/1 = 42/9
Answer:
The answer is 4.66666666667
Step-by-step explanation: