Answer:
1. b
2. d
3. c
4. a
5. f
6. e
Step-by-step explanation:
5. Find the value of n. Then find the area of
the figure shown.
Perimeter = 32 cm
9 cm
n
An= 7 cm; A = 63 square cm
B n=7 cm; A = 56 square cm
n = 8 cm; A = 72 square cm
Dn=8 cm; A = 64 square cm
A ping-pong ball rolls forward 6 meters, and bounces backward 3 meters. It traveled a total distance of:.
The distance traveled by the ping-pong ball as it rolls forward 6 meters and bounces backward 3 meters is 3 meters.
Distance is a concept that is important to understand in physics and mathematics. It refers to the amount of space between two points. In this scenario, we will be discussing the distance traveled by a ping-pong ball as it rolls forward and bounces backward.
When the ping-pong ball rolls forward, it covers a distance of 6 meters. This can be represented mathematically as d1 = 6 meters.
When the ball bounces backward, it covers a distance of 3 meters. This can be represented as d2 = -3 meters which means the negative sign indicates that it is moving in the opposite direction.
The total distance traveled by the ball can be found by adding the distance traveled in each direction. This can be represented as
=> d = d1 + d2 = 6 + (-3) = 3 meters.
In other words, the total distance traveled by the ball is 3 meters, which is the net distance covered after taking into account both the forward and backward movements.
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you are taking a quiz that has 11 multiple-choice questions. if each question has 3 possible answers, how many different ways are there to answer the test?
the braille system of representing characters was developed early in the nineteenth century by louis braille. the charac- ters, used by the blind, consist of raised dots. the positions for the dots are selected from two vertical columns of three dots each. at least one raised dot must be present. how many distinct braille characters are possible?
The Braille system uses two vertical columns of three dots each to represent characters. There are 8 possible combinations for each column, giving a total of 64 distinct Braille characters.
The Braille system of representing characters was developed by Louis Braille in the early nineteenth century. This system is used by blind people and consists of raised dots that represent characters. The positions for the dots are selected from two vertical columns of three dots each. At least one raised dot must be present to represent a character.
To determine the number of distinct Braille characters possible, we need to consider the number of ways we can arrange the dots in the two vertical columns. Each column has three dots, and we need to choose which of these three dots to raise to represent a character. This gives us a total of 2^3 = 8 possible combinations for each column.
Since we have two columns, we can multiply the number of possible combinations for each column to get the total number of distinct Braille characters. This gives us 8 x 8 = 64 possible characters.
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will mark brainlyist if right please helpp!!
Answer:
Step-by-step explanation:
linear equations have expoments other than one on variables
A linear equation has the form:
\(\begin{gathered} f(x_1,x_2,\ldots,x_n)=a_0+a_1x_1+a_2x_2+\cdots+a_nx_n \\ \text{where }a_0,a_1,a_2,\ldots,a_n\in\mathfrak{\Re } \end{gathered}\)So, the answer is false. The variables in linear equations could have only exponent 1, and could not multiply between them like x_1*x_2.
The scatter plot shows the time spent watching TV, x, and the time spent doing homework, y, by each of 25 students last week.
SOLUTION
The equation of line of best fit is
\(y=-0.76x+26.04\)a. substitute x=12 into the equation
\(y=-0.76(12)+26.04\)Calculate the value of y
\(\begin{gathered} y=-9.12+26.04 \\ y=16.92 \end{gathered}\)The predicted time spent is 16.92 hours
b. For those who spent no time is 26.04
c. The right answer is
\(-0.76\)What point is located at (-3, 3)?
point C
point A
point D
point B
when using percentiles with normally distributed scores, differences between raw scores may be .
The percentile rank / score in the setting of statistics denotes the percentage of the population that falls below it when the data is organized in ascending order.
What is meant by normally distributed?The mean and standard deviation of a normal distribution are 0 and 1, correspondingly. It has a kurtosis of 3 and zero skew.Not every symmetrical distributions are normal, but all normal distributions are symmetrical.68.2% of observations would fall within +/- 1 standard deviation of a mean including all normal distributions, 95.4% will fall in +/- two standard deviations, and 99.7% will fall within +/- 3 different deviations.For the given question.
The difference in the percentiles and raw scores is-
When presented in ascending order in statistics, a percentile rank / score signifies the percentage of the population that drops below it. By translating the raw score into an analogous z-score through using empirical z-distribution table, the percentile for such a raw score may be established.To know more about the normally distributed, here
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Find the cost per roll if a bag of five lunch rolls is $2.50
\(\rule{300}{3}\)
\(\text{Hi!}\)
To find the cost per item (or in your case "rolls"), you will first have to divide the cost of the lunch rolls \((2.50)\) by the amount of lunch rolls there are \((5)\).
So in this case, it would look like
\( \textbf{$2.50/5} \)\(\text{$2.50 ÷ 5}\)\(\text{$2.50 / 5}\)\(\text{2.50}\) ÷ \(\text{5}\)
\(\text{=$0.50}\)= \(\text{\ 0.50}\)
\(\boxed{\$0.50{}}\)
\(\rule{300}{3}\)
PLEASE HELP!!! I NEED TO TURN THIS IN IN 5 MINS!!!
What belongs in the blank spaces in the equations? What should be dotted on the graphs?. ( Show Your Work!)
Answer:
Cool Down 2:
y = -2x+4
y=1x+1
Part 2:
y = -5/1x +3
y = -6/1x +4
Step-by-step explanation:
Triangle rst is congruent to triangle wxy. If the area of triangle wxy is 20 square inches, then the area of triangle rst is _____. 10 in 2 40 in 2 80 in 2 20 in 2.
Triangle rst is congruent to triangle wxy. If the area of triangle wxy is 20 square inches, then the area of triangle rst is 20 square inches.
When two triangles are congruent, it means that they are exactly the same in every aspect, including their size and shape. This means that their corresponding sides and angles are equal in length and measure, respectively.
In terms of area, if two triangles have the same shape and size, then they will have the same area. This is because the area of a triangle is determined by the length of its sides and the angles between them, and if two triangles are congruent, then their sides and angles are equal.
Therefore, if the area of triangle WXY is 20 square inches, then the area of triangle RST must also be 20 square inches. This is because triangle RST has the same size and shape as triangle WXY, and therefore must have the same area.
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What is the 100th digit of pi?what is the hundredth digit of pi? this would include the 3 in the beginning.
100th digit of the pi is 7
Pi (represented by the Greek letter π) is a mathematical constant that represents the ratio of the circumference of a circle to its diameter. It is approximately equal to 3.14159,
The decimal representation of pi (π) is an infinite non-repeating sequence of digits, so there is no simple formula or algorithm to determine the value of its digits. However, you can use a computer program or online tool to calculate the digits of pi to a certain number of decimal places.
Assuming you are looking for the 100th decimal digit of pi, it is 7. This means that if you write out the first 100 digits of pi, the 100th digit is 7.
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Which equation would you use to solve this problem: Laura bought 4 1/3 bushels of apples for $16. How much did each bushel cost? *
Answer: $3.69
Step-by-step explanation:
Laura bought 4 1/3 bushels of apples.
Firs convert this to an improper fraction for easier calculation:
= 13/3 bushels of apples.
If cost $16 altogether, individually they must cost:
= Cost / Quantity purchased
= 16 ÷ 13/3
= 16 * 3/13
= $3.69
Note: You can divide by a fraction by multiplying the inverse of that fraction.
Analyzing Graphs of Functions
Which graph shows a function where f(2) = 4?
Answer:
the first one
Step-by-step explanation:
check which graph passes through the point (2,4)
Answer:
First graph
Step-by-step explanation:
Edge
according to government data, 22% of american children under the age of six live in households with incomes less than the official poverty level. a study of learning in early childhood chooses an srs of 300 children. find the probability that more than 20% of the sample are from poverty households. be sure to check that you can use the normal approximation.
The probability that more than 20% of the sample are from poverty households is approximately 0.8365.
What is the probability?
Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are. The analysis of events governed by probability is called statistics.
We can use the normal approximation to the binomial distribution to solve this problem, given that the sample size is relatively large (n=300) and the probability of success (p=0.22) is not too close to 0 or 1.
Let X be the number of children in the sample who live in poverty households. Then X follows a binomial distribution with parameters n=300 and p=0.22.
The mean of X is given by μ = np = 300 x 0.22 = 66, and the standard deviation is σ = sqrt(np(1-p)) = sqrt(300 x 0.22 x 0.78) ≈ 6.23.
We want to find the probability that more than 20% of the sample are from poverty households, which is equivalent to finding P(X > 0.2n) = P(X > 60).
To use the normal approximation, we can standardize X as follows:
Z = (X - μ) / σ
Then, we have:
P(X > 60) = P(Z > (60 - 66) / 6.23) ≈ P(Z > -0.96)
Using a standard normal table or calculator, we can find that the probability of Z being greater than -0.96 is approximately 0.8365.
Therefore, the probability that more than 20% of the sample are from poverty households is approximately 0.8365.
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помогите, нужно решить систему уравнения
Answer:
x = 5, y = 6
Step-by-step explanation:
x + 5y = 35, поэтому 3x + 15y = 105 (уравнение 1)
Кроме того, 3x + 2y = 27 (уравнение 2)
Мы должны найти y, вычитая второе уравнение из первого
Получаем, 13 y = 78, значит y = 6
А теперь подставьте y в любое уравнение, чтобы найти x = 5
Jenny sleeps for 8 hours every day. How many days does she spend over the course
Answer:
56 Hours A Week... how long is the course though?
Step-by-step explanation:
Which equation matches the function described by the table?
A)y = 5x
B)y=x+2
C)y = 5x + 2
D)y 6x-1
8.) Bailey and Miranda sell ads for the school yearbook. Their first month's
sales totals are represented by the system shown, where x is the price of a
small ad and is the price of a full-page ad. What are the prices of small
ads and of full-page ads?
Answer:
$38.59
Step-by-step explanation:
Just plug it into the formula and then divide.
Given the following parallelogram and AC = 24, what is the value of x
we have, the diagonal bisect each other, therefore
\(x=\frac{AC}{2}=\frac{24}{2}=12\)answer: x = 12
According to SEC rules, fingerprinting is required for all of the following broker-dealer employees EXCEPT A) A sales representative that sells only government bonds B) An officer of a national securities exchange C) A manager of a transfer agent that oversees custody of customer funds D) A receptionist at a broker-dealer that regularly answers calls from customers
According to "SEC-rules", fingerprinting is required for all of "broker-dealer" employees EXCEPT (d) A receptionist at "broker-dealer" which regularly answers calls from customers.
The Fingerprinting is a regulatory requirement imposed by the Securities and Exchange Commission (SEC) for certain broker-dealer employees to undergo background checks. It helps ensure the integrity and security of the financial industry.
The fingerprinting is not required for a receptionist at a broker-dealer who primarily handles customer calls. Receptionists do not have access to sensitive customer funds or engage in activities that would warrant fingerprinting under SEC rules.
The correct option is (d).
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The given question is incomplete, the complete question is
According to SEC rules, fingerprinting is required for all of the following broker-dealer employees EXCEPT
(a) A sales representative that sells only government bonds,
(b) An officer of a national securities exchange,
(c) A manager of a transfer agent that oversees custody of customer funds,
(d) A receptionist at a broker-dealer that regularly answers calls from customers.
When the area in square units of an expanding circle is increasing twice as fast as its radius in linear units, the radius is Select one: A. 1/(4Pi) B. 1/Pi C. 1/4 D. 1 E. Pi
When the area in square units of an expanding circle is increasing twice as fast as its radius in linear units, the radius is E. Pi.
The area of a circle is given by the formula A = π\(r^2\), where A is the area and r is the radius. If the area of the circle is increasing twice as fast as its radius, we can express this relationship as:
dA/dt = 2(dr/dt)
Here, dA/dt represents the rate of change of the area with respect to time, and dr/dt represents the rate of change of the radius with respect to time.
Since we are considering an expanding circle, both dA/dt and dr/dt are positive.
Now, let's solve for the relationship between dA/dt and dr/dt:
dA/dt = 2(dr/dt)
π\(r^2\) = 2(dr/dt)
Dividing both sides by \(r^2\):
π = 2(dr/dt) / \(r^2\)
Simplifying further:
π = 2(dr/dt) / \(r^2\)
π = 2/r
Therefore, the relationship between the rate of change of the area and the rate of change of the radius is π = 2/r.
To find the value of r, we rearrange the equation:
r = 2/π
Thus, the radius is 2/π, which is approximately 0.6366.
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Find the distance between the two points in simplest radical form.
(7,-1) and (9,-9)
Answer:
\(\sqrt{68}\)
Step-by-step explanation:
(7 , -1) = (x1 , y1)
(9 , -9) = (x2 , y2)
distance formula = \(\sqrt{(x2 - x1)^2 + (y2 - y1)^2}\)
=\(\sqrt{(9 - 7)^2 + (-9 - (-1))^2}\)
=\(\sqrt{2^2 + (-9 + 1)^2}\)
=\(\sqrt{4 + (-8)^2}\)
=\(\sqrt{4 + 64}\)
=\(\sqrt{68}\)
Answer:
\(Distance = \sqrt{ 68 } \\\\or \\\\Distance =2 \sqrt{17}\)
Step-by-step explanation:
\(Let \ (x_1 , y_1) = ( 7 , - 1 ) \ and \ (x_2, y _ 2 ) = ( 9 , - 9 )\\\\\\Distance = \sqrt{(x_2 - x_ 1)^2 + (y_ 2 - y_ 1)^2}\\\\\)
\(= \sqrt{(9 - 7)^2 + ( -9 --1)^2} \\\\=\sqrt{2^2 + ( -9 + 1)^2 }\\\\=\sqrt {4 + (-8)^2 }\\\\=\sqrt{ 4 + 64 }\\\\=\sqrt{68}\\\\= \sqrt { 4 \times 17}\\\\=\sqrt{2^2 \times 17}\\\\=2 \sqrt{17}\)
A 95% confidence interval for the mean body mass index (BMI) of young American women is 26.8 +0.6. One of your classmates interprets this interval in the following way: "The mean BMI of young American women cannot be 28." Is your classmate's interpretation correct? If not, what is the correct interpretation of the confidence interval? Incorrect. We are 95% confident that future samples of young women will have mean BMI between 26.2 and 27.4.
Incorrect. We are 95% confident that the interval from 26.2 and 27.4 captures the BMI of all young American women.
Correct. The interval states that the mean BMI of young American women is between 26.2 and 274, so the mean cannot be 28. Incorrect. We are 95%confident that the interval from 26.2 and 274 captures the true mean BMI of all young American women. Incorrect. If we take many samples, the population mean BMI will be between 26.2 and 27.4 in about 95% of those samples.
Incorrect. We are 95% confident that the interval from 26.2 and 27.4 captures the BMI of all young American women is the correct interpretation of the confidence interval.
A 95% confidence interval is a range of values that we can be 95% sure contains the true mean of the population. The 95% confidence interval for the mean body mass index (BMI) of young American women is 26.8 ± 0.6.
This means that we are 95% confident that the true mean BMI of young American women is between 26.2 and 27.4.
Consequently, the statement, "The mean BMI of young American women cannot be 28" is incorrect as the confidence interval does not include the value 28.
However, this does not imply that the true mean BMI of young American women cannot be 28.
A confidence interval is a statistical range that provides an estimate of the possible values for an unknown population parameter, such as a mean or proportion, based on a sample from that population. It provides a range of values within which the true population parameter is likely to fall, along with a specified level of confidence.
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At sunrise donuts you can buy 6 donuts and 2 kolaches for $8.84. On koalches and 4 donuts would cost $5.36. What is the price of one donut at Sunrise Donuts?
Let x be the price of one donut and y be the price of one kolache. Then we have:
6x + 2y = 8.84 4x + y = 5.36
We can solve for y by multiplying the second equation by -2 and adding it to the first equation:
6x + 2y = 8.84 -8x - 2y = -10.72
-2x = -1.88
Dividing both sides by -2, we get:
x = 0.94
This means that one donut costs $0.94
find the inequalities represented by the graph?
Answer:
,
Step-by-step explanation:
,...
6x-8y-x+3y please this is hard
6x-8y-x+3y
= (6x-x)+(-8y+3y)
= 5x+(-5y)
=5x-5y
Answer:
5x-5y
Step-by-step explanation:
Equation;
6x-8y-x+3y(Group like terms)
Which is going to be;
6x-x-8y+3y
Then you proceed to simplify;
5x-5y
This is the final answer
8. José drives 65 miles per hour when he travels. Sherry drives 450 miles in 9 hours. Which driver has a faster rate of change?
HELP!!
GIVING BRAINLIEST!!