Answer:
b and e are the only correct answers.
Step-by-step explanation:
when you graph these equations, there is one point on the graph where both of the lines intersect, which is (0, 2), therefore there is only one solution.
i hope this helps :)
Determine which of the four levels of measurement (nominal, ordinal, interval, ratio) is most appropriate. Positions of persons in a line Choose the correct level of measurement. A.) Nominal B.) Interval C.) Ratio D.) Ordinal
The level of measurement that is most appropriate for position of persons in a line is given as follows:
D.) Ordinal.
How to obtain the levels of measurement of the data?There are four levels of measurement for the data, given as follows:
Nominal.Ordinal.Interval.Ratios.The measures of central tendency for each level are given as follows:
Nominal: ModeOrdinal: Mode and median.Interval: Arithmetic mean, mode and median.Ratios: Arithmetic mean, geometric mean, mode and median.For the position of the people in the line, we use the median, which is the midpoint of the line, hence the level of measurement is ordinal.
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The probability of a three of a kind in poker is approximately 1/50. Use the Poisson approximation to estimate the probability you will get at least one three of a kind if you play 20 hands of poker.
The probability of getting at least one three of a kind in 20 hands of poker, using the Poisson approximation, is approximately 0.3293 or about 32.93%.
What is probability?
Probability is a branch of mathematics that deals with the study of random events or processes. It is the measure of the likelihood that an event will occur, expressed as a number between 0 and 1, where 0 means that the event will not occur and 1 means that the event is certain to occur.
We can use the Poisson distribution to approximate the probability of getting at least one three of a kind in 20 hands of poker, given that the probability of a three of a kind is approximately 1/50.
Let λ be the expected number of three of a kinds in 20 hands. Then λ = np, where n is the number of hands (20) and p is the probability of a three of a kind (1/50).
λ = np = 20 * (1/50) = 0.4
Using the Poisson distribution, the probability of getting k three of a kinds in 20 hands is given by:
\(P(k) = (e^{(-\lambda)} * \lambda^k) / k!\)
The probability of getting at least one three of a kind in 20 hands is:
P(at least one three of a kind) = 1 - P(0 three of a kinds)
\(= 1 - (e^(-0.4) * 0.4^0) / 0!\\\\= 1 - e^(-0.4)\)
≈ \(0.3293\)
Therefore, the probability of getting at least one three of a kind in 20 hands of poker, using the Poisson approximation, is approximately 0.3293 or about 32.93%.
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Which expressions are equivalent to the one below? Check all that apply. log 2 - log 8 A. log(;) DB. log 4 B. D C. log(2) + -log(3) 8 D D. log 2
the null hypothesis for the single factor anova states that all means are equal.
T/F
The null hypothesis for the single factor ANOVA states that all means are equally true.
The null hypothesis for a single-factor ANOVA (analysis of variance) states that all means are equal.
The alternative hypothesis, on the other hand, suggests that at least one of the means is different from the others.
The purpose of the ANOVA test is to determine whether there is sufficient evidence to reject the null hypothesis and conclude that there are significant differences between the means. A statistical formula used to compare variances across the means (or average) of different groups.
Hence, the statement is true .
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Your friend drinks 2/3 of water. You dink 5/7 of a bottle of water find the difference of the amounts of water lift in each bottle
Answer:
the difference is 1/21
Step-by-step explanation:
2/3 equals 14/21 and 5/7 equals 15/21
Use the Integral Test to determine whether the series is convergent or divergent. ∑n=1[infinity](4n+4)31 Evaluate the following integral ∫1[infinity](4x+4)31dx Since the integral finite, the series is
Integral Test:
The integral test is used to check the convergence of an infinite series. According to the integral test, a series converges if and only if the corresponding improper integral converges. If the improper integral diverges, then the series also diverges.
Use the Integral Test to determine whether the series is convergent or divergent. \(∑n=1[infinity](4n+4)31\) For Integral test, Firstly, we need to find the integral of the given series i.e.\(∫1[infinity](4x+4)31dx∫(4x+4)31dx\)
\(=∫4(x+1)31dx
=4∫(x+1)31dx\) Now, to solve the integral, we can use substitution method.
Let (\(x+1)
= t → dx
= dt4∫(x+1)31dx
=4∫t31dt\) Now integrating by using the formula\(∫xn dx= xn+1/n+1+ C4∫(x+1)31\)
\(dx=4∫t31dt
=4* t32/32+C
= 4*(x+1)32/32+C
=4*(x+1)32/32∣11
=4/32+4/32\)
=1/4 We now have the value of integral which is finite, so we can conclude that the given series also converges.
Thus, the series is convergent. Evaluate the following integral \(∫1[infinity](4x+4)31dx∫(4x+4)31dx
=∫4(x+1)31dxLet (4x+4)
= t → dx
= dt4∫(x+1)31dx
=4∫t31dt4∫t31dt
= 4* t32/32+C
= 4*(x+1)32/32∣11
=4/32+4/32
=1/4\)
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A die is weighted so that the odd numbers are 3 times as likely to come up as the even numbers. All the even numbers are equally likely, and all the odd numbers are equally likely. What probabilities w1, W2, W3, W4, W5, W6 should be assigned to the outcomes 1, 2, 3, 4, 5, 6, respectively?
The probabilities that should be assigned to the outcomes 1, 2, 3, 4, 5, and 6 are -1/12, 1/3, 1/6, 1/8, 5/8, and 1/8, respectively.
Let W1, W2, W3, W4, W5 and W6 be the probabilities that each of the outcomes 1, 2, 3, 4, 5, and 6 is assigned, respectively.
A die is weighted so that odd numbers are 3 times as likely to come up as even numbers. Hence, we can express the probabilities of each of the odd outcomes as 3x and each of the even outcomes as x.
Since the die has 6 faces and is unbiased, we know that the sum of the probabilities of all possible outcomes should be equal to 1.
Thus, we have:
W1 + W2 + W3 + W4 + W5 + W6 = 1
The probability that the odd numbers will come up is equal to the sum of the probabilities of outcomes 1, 3, and 5.
Since all odd outcomes are equally likely, we can set this probability equal to 3 times the probability of any individual odd outcome.
Thus, we have:
W1 + W3 + W5 = 3(W3)
Similarly, the probability that the even numbers will come up is equal to the sum of the probabilities of outcomes 2, 4, and 6.
Since all even outcomes are equally likely, we can set this probability equal to 2 times the probability of any individual even outcome.
Thus, we have:W2 + W4 + W6 = 2(W2)Adding the two equations, we get:W1 + W2 + W3 + W4 + W5 + W6 = 3(W3) + 2(W2)
Since the sum of the probabilities of all outcomes is equal to 1, we know that:W1 + W2 + W3 + W4 + W5 + W6 = 1
Substituting this into the previous equation, we get:
1 = 3(W3) + 2(W2)Solving for W2, we get:
W2 = (1 - 3(W3))/2
Substituting this into the equation for the probability of even outcomes, we get:
W4 + W6 = W2
Thus, we have:
W4 + W6 = (1 - 3(W3))/2
Since all even outcomes are equally likely, we know that:
W4 = W6
Thus, we have:
2W4 = (1 - 3(W3))/2
Solving for W4, we get:
W4 = (1 - 3(W3))/4
Substituting this back into the equation for W2, we get:
W2 = (1 + 3(W3))/4
Now, we can use the equation for the probability of odd outcomes to solve for W3:
W1 + W3 + W5 = 3(W3)
Substituting the expressions for W2 and W4 into this equation, we get:
W1 + (1 - 3(W3))/4 + 3(W3) = 9(W3)/4 + (1 - 3(W3))/4 + 3(W3)
Simplifying, we get:W1 + (1 - 3(W3))/4 = 1
Thus, we have:W1 = (3(W3) - 1)/4
Now we can express all the probabilities in terms of W3:
W1 = (3(W3) - 1)/4W2 = (1 + 3(W3))/4W3 = W3W4 = (1 - 3(W3))/4W5 = (3 - 3(W3))/4W6 = (1 - 3(W3))/4
We know that the sum of the probabilities of all outcomes should be equal to 1, so we can use this fact to solve for W3:
W1 + W2 + W3 + W4 + W5 + W6 = (3(W3) - 1)/4 + (1 + 3(W3))/4 + W3 + (1 - 3(W3))/4 + (3 - 3(W3))/4 + (1 - 3(W3))/4= 1
Multiplying through by 4, we get:
3(W3) - 1 + 1 + 3(W3) + 4(W3) - 3 + 1 - 3(W3) + 1 - 3(W3) = 4
Simplifying, we get:
6W3 = 2W3 = 1/3
Thus, we have:
W1 = (3(W3) - 1)/4 = (1/3 - 1)/4 = -1/12W2 = (1 + 3(W3))/4 = (1 + 1)/12 = 1/3W3 = W3 = 1/6W4 = (1 - 3(W3))/4 = (1 - 1/2)/4 = 1/8W5 = (3 - 3(W3))/4 = (3 - 1/2)/4 = 5/8W6 = (1 - 3(W3))/4 = (1 - 1/2)/4 = 1/8
Therefore, the probabilities that should be assigned to the outcomes 1, 2, 3, 4, 5, and 6 are -1/12, 1/3, 1/6, 1/8, 5/8, and 1/8, respectively.
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The cake walk fundraiser sold 44 tickets during the first day of sales. this was 22% of the total sales. How many tickets were sold to the cake walk fundraiser?
Answer:
200 tickets
Step-by-step explanation:
I hope this helps you :)
-KeairaDickson
Answer:
Step-by-step explanation:
200 tickets were sold
1. What is 2/7 + 1/4
2. 5/9 +3/8
3. 3 5/6- 2 7/15
[Mathematical Solutions]
1.) \(\frac{2}{7} + \frac{1}{4} = \frac{15}{28}\)
2.) \(\frac{5}{9} +\frac{3}{8} = \frac{67}{72}\)
3.) \(3\frac{5}{6} - 2\frac{7}{15} =\frac{41}{30}\) as the Exact Form, or \(1\frac{11}{30}\) as the Mixed Number Form.
Hope this helps!
A jar of marbles contains 5 pink, 9 green, 13 blue, and 3 orange marbles. If a marble is randomly chosen from the jar, what is the probability that it will not be orange?
The probability that it will not be orange is 0.9
What is probability?
Probability is the branch of mathematics concerning numerical descriptions of how probably an event is to do, or how likely it's that a proposition is true.
given:
There are:
5 pink marbles
9 green marbles,
13 blue marbles, and
3 orange marbles.
There is a total of 30 marbles in the jar.
Step 1. Take 1 marble from the jar.
Step 2. Probability that it is orange, = P(orange) = ( 3/30 ) = ( 1/10 ) = 0.10 = 10%
Step 3. Probability that the chosen marble is not orange, = ( 1 - Probability that the chosen marble IS orange) = ( 1 - 0.1 ) = 0.9 = 90%.
hence , the probability that it will not be orange is 0.9
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Tyler has a baseball bat that weighs 28 ounces. Find this weight in grams.
Please answer this in 7 mins ty
Answer:
793.787 or 800
Step-by-step explanation:
Subway sells sandwiches for $6.95 each, including tax. The show
received $83.40 from the sale of sandwiches one day. Write an equation
that can be used to find the number of sandwiches sold.
1. Sanchez deposited $3,000 with a bank in a 4-year certificate of deposit yielding 6% interest
compounded daily. Find the interest earned on the investment. (4pts)
The compound interest generated on the investment is roughly $813.67, which is the solution to the question based on compound interest.
What is Principal?The initial sum of money invested or borrowed, upon which interest is based, is referred to as the principle. The principal is then periodically increased by the interest, often monthly or annually, to create a new principal sum that will accrue interest in the ensuing period.
Using the compound interest calculation, we can determine the interest earned on Sanchez's investment:
\(A = P(1 + \frac{r}{n} )^{(n*t)}\)
where A is the overall sum, P denotes the principal (the initial investment), r denotes the yearly interest rate in decimal form, n denotes the frequency of compounding interest annually, and t denotes the number of years.
In this case, P = $3,000, r = 0.06 (6%), n = 365 (compounded daily),
and t = 4.
Plugging in the values, we get:
\(A = 3000(1 + \frac{0.06}{365} )^{(365*4)}\)
A= $3813.67
The difference between the final amount and the principal is the interest earned.
Interest = A - P
Interest = $3813.67 - $3000
Interest = $813.67
As a result, the investment's interest yield is roughly $813.67.
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Find the midpoint between (9, -1) and (1, 15).
The midpoint between the endpoints (9, -1) and (1, 15) is equal to (5, 7).
How to determine the midpoint of a line segment?In order to determine the midpoint of a line segment with two (2) endpoints, we would add each point together and divide by two (2).
Midpoint = [(x₁ + x₂)/2, (y₁ + y₂)/2]
Substituting the given parameters into the midpoint of a line segment formula, we have the following;
Midpoint = [(x₁ + x₂)/2, (y₁ + y₂)/2]
Midpoint = [(9 + 1)/2, ((-1) + 15)/2]
Midpoint = [(10)/2, (14)/2]
Midpoint = (5, 7).
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NEED ANSWER RIGHT NOW PLS Which graph represents the solution set of the inequality Negative 9 greater-than x?
A number line going from negative 13 to negative 7. An open circle is at negative 9. Everything to the left of the circle is shaded.
A number line going from negative 13 to negative 7. A closed circle is at negative 9. Everything to the left of the circle is shaded.
A number line going from negative 13 to negative 7. An open circle is at negative 9. Everything to the right of the circle is shaded.
A number line going from negative 13 to negative 7. A closed circle is at negative 9. Everything to the right of the circle is shaded.
Answer:
i think C
Step-by-step explanation:
tell me if i am wrong and hope you have a good day
Answer:
A
Step-by-step explanation:
Brainliest for the best answer, for 50 points:
Answer:
a) Children total 37, Teens total 64, Adults total 50, Chocolate total 70, Vanilla total 47, Strawberry total 34
b) 15
c) 15
d) 49/64
Noemi strings together x green beads at $0. 75 each with 3 blue beads at $0. 30 each. She makes a bracelet that averages $0. 60 per bead. Choose an equation to model the situation.
The model equation for the given situation is
$0.75x + $0.90)/(3 + x) = $0.60 where,
x ----> known number of green beads
$0.60 ---> bracelet average per bead
Averages cost is defined as the ratio of total cost of all purchsed expenses to the total numbers of purchsed expenses in counts .
We have given that,
Noemi strings x green beads and 3 blue beads.
Cost of each green beads = $0.75
Cost of each blue beads = $0.30
Total cost of purchasing is product of total number of expenses by cost of each expense. So, Total cost of green beads = $ 0.75 x
Total blue bead cost = 3 x 0.3 = $ 0.9
Total number of beads used by Noemi = x + 3
Total cost of all beads (green+blue)
= $(0.75x + 0.9
Average of bracelets is $0.60 per bead
So average formula ,
($0.75 x + $0.9)/(x+3) = $0.60
or 0.75 x + 0.9 = 0.60x+ 0.18 => 0.75x - 0.60x= 0.9
=> 0.15x = 0.9 => x = 6 i.e we get total 6 green beads if solve the model.
Hence, equation of model in this situation is
($0.75 x + $0.9)/(x+3) = $0.60
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If EF = 2x + 5 and FG = x + 9, what is EG?
Answer:
3x + 14
Step-by-step explanation:
Just add them together.
2x + 5 + x + 9
= 3x + 14
3) Which of the following numbers is divisible by 5 and 10 both?
(a) 35,245 (b) 55,555 (c) 3,22,695 (d) 4,34,780
Answer:
I assume you mean that it will not have a decimal;
434,780
Step-by-step explanation:
434780/5= 86,956
434780/10= 43,478
Can SOMEONE PLEASE HELP ME WILL GIVE 30 POINTS AND BRAINLIEST!!!!!
Answer:
Hope i helped :)
Step-by-step explanation:
8) T-V =24
24 -6 =18
2x-18 =18
2x=0
x= 0/2
x=0
9)
*LMK
*L-K=x+3
*L-M=6x-10
*M-K= 3x-3
L-M + M-K = 6x -10 + 3x -3 = 9x -13
10 and 11)
Both lines are horizontal
both lines consist of intervals due to having 2 points on one line making it a distance between 2 points.
they are also concurrent lines because more then 3 lines pass through one point
they are also intersecting lines because they cross over each other
Answer:
#8Given:
TV = TU + UVand
TV = 24Find x:
6 + 2x - 18 = 242x - 12 = 242x = 36x = 18#9Given:
M is between L and KLK = x + 3LM = 6x - 10MK = 3x - 3Find x:
LK = LM + MKx + 3 = 6x - 10 + 3x - 3x + 3 = 9x - 139x - x = 3 + 138x = 16x = 2#10Point N is on the line g#11Point R is on the line h3. Consider the following system: →0.85→0.85→ Determine the probability that the system will operate under each of these conditions: a. The system as shown. (Do not round your intermediate calculations. Round your final answer to 4 decimal places.) b. Each system component has a backup with a probability of .85 and a switch that is 100 percent reliable. (Do not round your intermediate calculations. Round your final answer to 4 decimal places. c. Each system component has a backup with a probability of .85 and a switch that is 90 percent reliable. (Do not round your intermediate calculations. Round your final answer to 4 decimal places.)
a. The probability that the system will operate as shown is approximately 0.6141.
b. Probability ≈ 0.6141The probability remains the same as in the previous case, which is approximately 0.6141.
c. The probability that the system will operate with each component having a backup with a probability of 0.85 and a switch that is 90% reliable is approximately 0.6485.
a. To find the probability that the system will operate as shown, we multiply the probabilities of each component. Since the system is shown to have three components with a probability of 0.85 each, we can calculate:
Probability = 0.85 × 0.85 × 0.85
Probability ≈ 0.6141
The probability that the system will operate as shown is approximately 0.6141.
b. In this case, each system component has a backup with a probability of 0.85 and a switch that is 100% reliable. Since the backup has a probability of 0.85, and the switch is 100% reliable (probability = 1), we can calculate the probability as:
Probability = 0.85 × 0.85 × 0.85
Probability ≈ 0.6141The probability remains the same as in the previous case, which is approximately 0.6141.
c. In this scenario, each system component has a backup with a probability of 0.85, but the switch is 90% reliable (probability = 0.90). We can calculate the probability as:
Probability = 0.85 × 0.90 × 0.85
Probability ≈ 0.6485
The probability that the system will operate with each component having a backup with a probability of 0.85 and a switch that is 90% reliable is approximately 0.6485.
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What is the area of the circle?
Use 3.14 to approximate π. Round your answer to the nearest tenth.
Answer:
706.5ft^2
Step-by-step explanation:
A=pi*r^2
A=3.14(15^2)
A=3.14(225)
A=706.5ft^2
!!HELP ASAP DUE TODAY!! I need help with this math problem.
The value of x in the expression is x = - 14
How to determine the value?Remember that an algebraic expression is an equation that contains one or more variables. It is built up from constant algebraic numbers, variables, and the algebraic operations (addition, subtraction, multiplication, division and exponentiation by an exponent that is a rational number)
The given equation is
-1/2 x + 6 = 4x - 3
Collecting the like terms to have
- 1/2 x - 4x = -3 -6
(2x - 8)/ 4 = - 9
Cross and multiply to have
2x -8 = -36
2x = -36 +8
2x = -28
Making x the subject of the relation we have
x = -28/2
Therefore the value of x = - 14
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PLEASE HELP!!! The line graph shows Calvin’s savings account balance at the end of each month for 6 months.
About how much more money did Calvin have in his account at the end of June than at the end of April?
Assessment graphic
$50
$75
$90
$25
Answer:
$20
Step-by-step explanation:
Answer:
I know the answer now its 25$
Step-by-step explanation:
I figured it out
Which side measures can form a triangle?
A
3 cm, 5 cm, 8 cm
B.
6 cm, 7 cm, 12 cm
9 cm, 9 cm, 19 cm
10 cm, 5 cm, 4 cm
Answer:
answer is 6 cm, 7cm, 12 cm
Step-by-step explanation:
the rule is that the sum of any two sides of a triangle must be greater than the 1 one side
Answer:
6 cm, 7 cm, 12 cm
Step-by-step explanation:
A father is 48 years old and his son is 12 yeats old. in how many years will the father be twice as old as his son?
Answer: The father will be twice as old as the son in 24 years.
Step-by-step explanation:
12+24=36
48+24=72
72/2=36
Hope this helps!!!
I need help with math
Giving a rectangular prism with dimension l by w by h, the volume, V is given by
\(V=l\times b\times h\)In this case,
l = 4units,
w = 7units, and h = 10 units
Therefore,
\(V=4\times7\times10=280\text{ cubit units}\)Hence, the right choice is D
Lesson 13: Surface Area of Prisms and Cylinders Math 7 B Unit 2: Measurement
Answer:
(C). 26 (A). 4 x square units
Step-by-step explanation:
Find the midpoint of the segment.
A. (1.5, 2)
B. (6, 8)
C. (2, 1.5)
If Steven was paid $12.00 for 3 hours of work, how much would he make for 2 hours of work?
Answer:
8 dollars
Step-by-step explanation:
12/3=4
4x2=8