Answer:
D
Step-by-step explanation:
Slope
All answers agree that the slope = - 3
y intercept
So far what you know is that the line is
y = -3x + b
The point shows that
5 = -3*2 + b Combine right
5 = -6 + b Add 6 to both sides
5 + 6 = -6+6 + b Combine
11 = b
So the y intercept = 11
Answer: y = -3x + 11 D
Tree Diagrams
'daT vo
1. A family has four children. How many outcomes are in the sample space that indicates the sex of the children?
Assume that the probability of male (M) and the probability of female (F) are each 1/2. Use a tree diagram to model this situation:
Child 1
Child 2
Child 3
Child 4
Possible Outcomes
2. What is the probability that all children are males?
3. What is the probability that they will have all one gender of children (all males or all females)?
4. What is the probability that there will be at least 2 female children?
5. You are bored and decide to flip a coin, then roll a 6 sided die, then flip a coin, then roll a 3-sided die. Create a tree diagram to model all possible outcomes
6. How many possible outcomes are there?
7. What is the probability of getting only heads on both coin tosses?
The total possible outcomes is 16, the probability that all children are males is 1/16, the probability of having all one gender is 1/8
What is the possible outcomes1. The tree diagram for the sex of the children is as follows:
Child 1: M / F
Child 2: M / F
Child 3: M / F
Child 4: M / F
Possible Outcomes: MMMM, MMMF, MMFM, MFMF, FMFM, FMMF, FMFF, FFFF
There are 2 options for each child, so the total number of possible outcomes is 2 x 2 x 2 x 2 = 16.
2. The probability that all children are males is 1/2 x 1/2 x 1/2 x 1/2 = 1/16.
3. The probability of having all one gender of children is the sum of the probability of having all boys and the probability of having all girls. Each of these outcomes has a probability of 1/16, so the total probability is 1/16 + 1/16 = 1/8.
4. The easiest way to solve this problem is to find the probability of having no female children, and then subtract that from 1. The probability of having no female children is (1/2)^4 = 1/16, so the probability of having at least 2 female children is 1 - 1/16 - 1/16 = 7/8.
5. The tree diagram for flipping a coin, rolling a 6-sided die, flipping a coin, and rolling a 3-sided die is as follows:
C / H
/
1-6 1-3
\ /
H / T
The first branch represents the coin flip, the second branch represents the roll of the 6-sided die, the third branch represents the second coin flip, and the fourth branch represents the roll of the 3-sided die.
6. There are 2 options for the first coin flip, 6 options for the second branch, 2 options for the second coin flip, and 3 options for the fourth branch, so the total number of possible outcomes is 2 x 6 x 2 x 3 = 72.
7. The probability of getting only heads on both coin tosses is 1/2 x 1/2 = 1/4. Therefore, the probability of getting only heads on both coin tosses and any result on the dice is 1/4 x 1 = 1/4.
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Based on the median of the samples, what is a reasonable estimate of the number of students that bike to school? Round to the nearest whole number.
PLEASE ANSWER!!!
The number of students that bike to school is 18
How to determine the valueThe median is described as the middle number of a set of data when the values are arranged in an ascending order from the least to the greatest.
We should also know that the median is one of the measures of central tendency.
From the information given, we have that the data set representing the number of students is;
10, 11, 12 , 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25
Then, we have that the median number is;
Median = 17 + 18/2
add the values
Median = 35/2
Divide the values
Median = 18 students
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What is the slope of the line shown below?
(1,6) (-5,-7)
A. 13/6
B. -13/6
C. -6/13
D. 6/13
\((\stackrel{x_1}{1}~,~\stackrel{y_1}{6})\qquad (\stackrel{x_2}{-5}~,~\stackrel{y_2}{-7}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{-7}-\stackrel{y1}{6}}}{\underset{\textit{\large run}} {\underset{x_2}{-5}-\underset{x_1}{1}}} \implies \cfrac{ -13 }{ -6 } \implies \cfrac{13 }{ 6 }\)
A roller coaster’s height is given by the equation h = –.025t2 + 4t + 50, where t represents the time in seconds. How long will it take riders to pass over the hill and reach ground level? Hint: Set h = 0.
11.65 seconds
50.00 seconds
171.65 seconds
210.00 seconds
The time it will take the roller coaster to reach the ground is 171.65 seconds
Function and valuesGiven the roller coaster’s height given by the following parameters
h = –0.025t² + 4t + 50
On the ground level, the height will be zero. Substitute h = 0 and determine the value of t
–0.025t² + 4t + 50 = 0
0.025t² - 4t - 50 = 0
Factorize
On factorizing the time it will take the roller coaster to reach the ground is 171.65 seconds
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awnser the qusetion 9iu523hb5hn33
The order of the matrices of each product is given as follows:
AB is nonexistent, BA is nonexistent.
How to apply multiplication of matrices?Multiplication of matrices is applied multiplying the rows of the first matrix by the columns of the second matrix, and hence the number of columns of the first matrix must be equal to the number of rows of the second matrix.
For the product AB, we have that:
A has four columns.B has two rows.Hence the product is nonexistent.
For the product BA, we have that:
B has four columns.A has two rows.Hence the product is nonexistent.
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Please answer and explain both in laymens terms
After considering the given data we come to the conclusion that the area to the left of z is 0.982, which is Option D. And the standard deviation of the given data is 87.6, which is Option C.
In order to calculate the area to the left of z=2.09 we have to apply the z-table:
1. Search for the row that starts with "2.0" in the leftmost column of the z-table.
2. Then for the column that starts with "0.09" in the top row of the z-table.
3. Here the value at the intersection of this row and column is 0.9821.
4. Finally round this value to three decimal places to get 0.982.
Hence , the area to the left of z=2.09 is 0.982.
Now for the second part of the question
Applying the given data set {10, 26, 84, 48, 250, 56}, we can evaluate the standard deviation as follows:
1. Evaluate the mean:
mean = (10 + 26 + 84 + 48 + 250 + 56) / 6 = 74
2. Applying subtraction of the mean from each data point:
{10 - 74, 26 - 74, 84 - 74, 48 - 74, 250 - 74, 56 - 74}
= {-64, -48, 10, -26, 176, -18}
3. Applying square of the result of step 2:
{(-64)², (-48)², (10)², (-26)², (176)², (-18)²}
= {4096, 2304, 100, 676, 30976, 324}
4. Exercising summation of the result of step 3:
4096 + 2304 + 100 + 676 + 30976 + 324
= 38176
5. Applying division of the result of step 4 by the number of data points (n):
standard deviation = √(38176 / (6 -1))
= √7625.2)
≈ 87.6.
Therefore, the answer is 87.6
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models for two mixed numbers are shown below which equation shows the sum?
we will simply add the whole number part
This will give 3
Since, the denominators are the same, we will just pick one, then add the numerator
\(=3\frac{15}{12}\)But, 15/12 = 1 3/12
\(=4\frac{3}{12}\)But 3/12 can be reduced to give 1/4
\(=4\frac{1}{4}\)Hence, the correct answer is D
Write an equation for the translation of "left 7 units
Y=|x|
i need the answer to this lol
Solve for y: y + 17 = 35 -52 52 -18 18
Answer:
18
Step-by-step explanation:
y+17=35
y=18
Foofy asks a sample of students their choice in the election for class president. She concludes that Poindexter will win. It turns out that Dorcas wins. What is the statistical explanation for Foofy's erroneous prediction?
The statistical explanation for Foofy's erroneous prediction is that there was an error in the way that the data that was used to conduct the survey was conducted
What would lead to erroneous prediction in survey?here are several factors that can lead to erroneous predictions in surveys, including:
Biased Sampling: If the sample of respondents is not representative of the population being studied, the results of the survey can be biased. For example, if a survey about voting intentions only polls people who live in a specific geographic area, the results may not accurately reflect the views of the entire population.
Question Wording: The way survey questions are worded can influence respondents' answers. Poorly worded questions, ambiguous language, or leading questions can skew results. For instance, asking a question like "Don't you agree that the government should reduce taxes?" can prompt respondents to agree, even if they don't hold that opinion.
Social Desirability Bias: Respondents may answer survey questions in a way that they believe is socially acceptable, rather than providing their true opinions.
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The radius of a circle is 4 miles. What is the length of a 45° arc?
45°
r=4 mi
The length of a 45° arc with a radius of 4 miles is approximately 3.14 miles, calculated using the formula for arc length.
To determine the length of a 45° arc given a radius of 4 miles, we can use the formula: Arc length = (angle measure / 360°) x 2πr, where r is the radius of the circle and π is a constant equal to approximately 3.14.
Substituting the given values into the formula, we get: Arc length = (45° / 360°) x 2π(4 mi)Arc length = (1/8) x 2π(4 mi)Arc length = (1/8) x 8π Arc length = π
The length of the 45° arc is approximately 3.14 miles.
Summary: To find the length of a 45° arc of a circle, we use the formula: Arc length = (angle measure / 360°) x 2πr. Given a radius of 4 miles, we can substitute the values into the formula to get the length of the 45° arc, which is approximately 3.14 miles.
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16. Is the following sequence arithmetic? If so, identify the common difference. -9, -6, -3, 0,..
Answer:
yes its arithmetic, and the common difference is 3
Step-by-step explanation:
-9, -6, -3, 0
-6 - (-9) = 3
-3 - (-6) = 3
0 - (-3) =3
If you use 2 cups of sugar for every 3 cups of lemon juice how many cups of sugar do you need for 9 cups of juice
Answer:
6 cups of lemon juice
Step-by-step explanation:
Noah assigns a number to each of the 150 athletes at his school and puts the numbers in a box. He randomly chooses 30 numbers and finds that 18 of the
athletes watched television last night. Use this sample to make an inference about how many athletes watched television last night.
Answer:
90
Step-by-step explanation:
18 out of 30 watched tv
150/30 = 5
18/30 = (18 * 5)/(30 * 5) = 90/150
Answer: 90
A company determines an employee's starting salary according to the number of years of experience, as detailed in the table.
Years of experience Salary
0 $52,000
1 $53,150
2 $54,260
3 $55,285
4 $56,921
5 $57,126
Use the equation for the line of best fit to predict the salary for an employee with 6 years of experience? (Round your answer to the nearest dollar.)
$61,150
$59,672
$58,587
$57,990
Answer:
Answer down bellow
Step-by-step explanation:
Q's Asked: A company determines an employee's starting salary according to the number of years of experience, as detailed in the table.
Years of experience Salary
0 $52,000
1 $53,150
2 $54,260
3 $55,285
4 $56,921
5 $57,126
---------------------------------------------------------------------------------------------------------
So based on the chart:
0 $52,000
1 $53,150
2 $54,260
3 $55,285
4 $56,921
5 $57,126
We can see for each year of experience the "Salary" goes up one thousands constantly. And that makes sense bc as you get used to the work u gradually get better meaning u work better and u also get paid better. ehmm... my bad
----------------------------------------------------------------------------------------------------------
So work side of things based on the chart we see the amount the amount change. so from
0 to 1 yr
you will be paid $1,150 more.
and from 1 to 2 yrs you will be paid 1110.
and so on.
So the answer is $58,587And btw i got it right on my test !
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A modified roulette wheel has 32 slots. One slot is 0, another is 00, and the others are numbered 1 through 30, respectively. You are placing a bet that the outcome is an odd number. (In roulette, 0 and 00 are neither odd nor even.) a. What is your probability of winning? The probability of winning is StartFraction 15 Over 32 EndFraction . (Type an integer or a simplified fraction.) b. What are the actual odds against winning? The actual odds against winning are
Answer:
(a)\(\dfrac{15}{32}\)
(b) 17:15
Step-by-step explanation:
(a)
The roulette wheel has 32 slots (inclusive of 0 and 00)
Number of Odd Numbers between 1 to 30 =15
Since you are placing a bet that the outcome is an odd number.
\(P(\text{Winning})=\dfrac{\text{Number of Odd Numbers}}{\text{Total Number of Slots}} \\=\dfrac{15}{32}\)
(b) The actual odds against winning
\(\text{Actual Odds against Winning})=\dfrac{32-15}{15}\\=\dfrac{17}{15}\)
Therefore, the actual odds against winning are 17:15
2.8(g − 6) + 1.06 = 6.66
G= ?
Answer:
g = 8
Step-by-step explanation:
Hello!
We can solve for g by isolating the variable.
Solve for g2.8(g - 6) + 1.06 = 6.662.8g -16.8 + 1.06 = 6.66 => Distribute2.8g - 15.74 = 6.66 => Simply LHS2.8g = 22.4 => Add 15.74g = 8 => Divide by 2.8The value of g is 8.
Answer:
\( \sf \: g = 8\)
Step-by-step explanation:
Now we have to,
→ find the required value of g.
The equation is,
→ 2.8(g - 6) + 1.06 = 6.66
Then the value of g will be,
→ 2.8(g - 6) + 1.06 = 6.66
→ 2.8g - 16.8 = 6.66 - 1.06
→ 2.8g - 16.8 = 5.6
→ 2.8g = 5.6 + 16.8
→ g = (22.4)/(2.8)
→ [ g = 8 ]
Hence, the value of g is 8.
PLEASE HELP!!!
In ΔJKL, m∠J = 78° and m∠L = 90°. Determine the measure of the exterior angle to ∠K.
168°
102°
57°
12°
The sum of all interior angles of a triangle is 180° thus the measure of the exterior angle to ∠K is 168° so option (A) is correct.
What is a triangle?A triangle is a 3-sided shape that is occasionally referred to as a triangle. There are 3 sides and three angles in every triangle, some of which may be the same.
It is known that the sum of all three angles inside a triangle will be 180°.
So, m∠J + m∠L + m∠K = 180°
m∠K = 180° - 78° - 90°
m∠K = 12°.
The exterior angle of k = 180- 12 = 168°.
Hence "The sum of all interior angles of a triangle is 180° thus the measure of the exterior angle to ∠K is 168°".
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what is the partial fraction decomposition in terms of x?
In the middle equation on the left side, if you let x = 3/2, then the term containing A vanishes and you can solve for B :
12*(3/2) - 25 = A (2*(3/2) - 3) + B
18 - 25 = A * (3 - 3) + B
B = -7
which makes the last option the correct answer.
Answer:
D
Step-by-step explanation:
edge 2021
You flip a coin 100 times and record that 48 are heads and 52 are tails. What is the relative frequency or experimental probability of landing on heads?
whats the percentage
As a result, the experimental probability of landing on heads is 48%, probability which means that we should expect heads approximately 48 times out of 100 coin flips.
What is probability?Probability is a measure of the likelihood of an event occurring. It is expressed as a number between 0 and 1, with 0 indicating an unlikely event and 1 indicating an unavoidable event. Because there are two equally likely outcomes, switching a fair coin and coin flips has a probability of 0.5 or 50%. (Either heads or tails). Probability theory, a branch of mathematics, is concerned with the investigation of random events rather than their properties. It is used in a variety of fields, including statistics, finance, science, and engineering.
The following formula can be used to calculate the relative frequency or experimental probability of landing on heads:
Number of Heads / Total Number of Flips = Experimental Probability of Heads
The number of heads in this case is 48, and the total number of flips is 100. Therefore,
Heads Experimental Probability = 48 / 100 = 0.48
We can multiply this by 100 to get a percentage:
Heads Experimental Probability = 0.48 * 100 = 48%
As a result, the experimental probability of landing on heads is 48%, which means that we should expect heads approximately 48 times out of 100 coin flips.
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Which of the following statements best describes the effect of replacing the graph of y = f(x) with the graph of y = f(x) − 11?
The graph of y = f(x) will shift up 11 units.
The graph of y = f(x) will shift right 11 units.
The graph of y = f(x) will shift left 11 units.
The graph of y = f(x) will shift down 11 units.
9514 1404 393
Answer:
The graph of y = f(x) will shift down 11 units.
Step-by-step explanation:
The y-coordinate of a point on the graph is the distance above the x-axis. When 11 is subtracted from the y-coordinate, the distance above the x-axis is decreased by 11. That is, the point will shift down 11 units.
just number 3, i dont rly need an explanation
Answer:
L=(-2,4)
Step-by-step explanation:
I just had this homework over the weekend. And there are the rest of the answers too
In one year, a school uses 13,270 pieces of white paper, 6,570 fewer pieces of blue paper than white paper, and 2,600 fewer pieces of yellow paper than blue paper. How many pieces of paper does the school use in all?
Answer:
24,070 the school uses in all
Step-by-step explanation:
You subtract 13,270 by 6,570 and you get 6,700 pieces of blue paper. Then, you subtract 6,700 by 2,600 and you get 4,100 pieces of yellow paper. Finally, you add the total of pieces of white, blue, and yellow paper and you get 24,070 for the total.
Plz I need help with only the perimeter one
Answer:
I believe the answer is 25.3
Answer:
25.4
Step-by-step explanation:
add em up then put the .3 after you add it up
(calculus !) The equation of the motion of a particle is s = 6t^2 + 5t + 2 where s is in meters and t is in seconds find the velocity as a function of t
The equation of motion is:
\(s=6t^2+5t+2\)Recall that the velocity function v is given by:
\(v=\frac{ds}{dt}\)Therefore,
\(v=12t+5\)Therefore, the correct answer is choice B:
12t + 5
Find the value of the power. Please do all four questions for 15 pts #1 6³ #2 9² #3 3⁴ #4 18²
Answer:
6³ = 216
9² = 81
3⁴ = 81
18² = 324
Step-by-step explanation:
6³ = 6 · 6 · 6 = 36 · 6 = 216
9² = 9 · 9 = 81
3⁴ = 3 · 3 · 3 · 3 = 9 · 3 · 3 = 27 · 3 = 81
18² = 18 · 18 = 324
Find the surface area of this shape (here is the grid too)
Answer:
12
Step-by-step explanation:
The second diagram is most helpful for finding the surface area.
Find the area of the middle square: 2 * 2 = 4Find the area of the triangle using A = 1/2*B*H, so A = 1/2 * 2 * 2 = 2Since there are 4 triangles, the surface area of all the triangles is 2 * 4 = 8Add the surface area of the triangles with the surface area of the square to get the total surface area: 8 + 4 = 12If you want further tutoring help in geometry or other subjects for FREE, check out growthinyouth.org.
A consumer research organization states that the mean caffeine content per 12-ounce bottle of a population of caffeinated soft drinks has a mean caffeine content of 38milligrams. You want to test this claim. During your tests, you find that a random sample of forty12-ounce bottles of caffeinated soft drinks has a mean caffeine content of 36.1 milligrams. Assume the populationstandard deviation is 10.8 milligrams. Use a significance level of α = 0.10.
Required:
a. Using proper notation, state the null and alternative hypothesis and identify the claim.
b. State the standardized test statistic rounded to two decimal places.
c. State the critical value(s) rounded to two decimal places.
d. State the P-value rounded to three decimal places.
Answer:
H0 : μ = 38
H 1 : μ < 38
Test statistic = - 1.11
Pvalue = 0.13
We conclude that there is no significant evidence to support the claim that mean caffeine content is less than 38 milligram.
Step-by-step explanation:
H0 : μ = 38
H 1 : μ < 38
The test statistic :
(xbar - μ) ÷ (s / sqrt (n))
(36.1 - 38) ÷ (10.8 / sqrt(40))
-1.9 ÷ 1.7076299
= - 1.113
= - 1.11 ( 2 decimal places)
α = 0.10
Using the value calculator :
P(Z < - 1.113) = 0.13285
Pvalue = 0.13285
Pvalue = 0.13 ( 2 decimal places)
Reject the Null if Pvalue < α
Since; 0.13285 > 0.01 ; We fail to reject the Null
We conclude that there is no significant evidence to support the claim that mean caffeine content is less than 38 milligram.
Write is 8.517 in expanded form
Answer: (8 x 1) + (5/10) + (1/100) + (7/1000)
Step-by-step explanation: Have a blessed day hopefully this helped!
Answer:
8 tens, 5 tenths, 1 hundredth, 7 thousandths
Step-by-step explanation:
Hope I helped give brainliest if right :D
160 students went on a field trip. Five buses were filled and 15 students traveled in cars. How many students were in each bus?
Each bus had ____ students.