Option B is the correct answer
you are ordering shirts for a club at your school. the function f(x)=8x+12 represents the cost of ordered x shirts how much would it cost to buy 32 shirts
The cost of ordering shirts for a club is 268 units.
Define Function.
A function, according to a technical definition, is a relationship between a set of inputs and a set of possible outputs, where each input is connected to precisely one output.
This means that a function f will map an object x exactly to one object f(x) in the set of possible outputs if the object x is in the set of inputs (called the codomain).
The statement that f is a function from X to Y using the function notation f: X→Y
The function that represents the cost of the shirts(x) is f(x) = 8x+12
Now, for x = 32
f(x) = 8x+12
f(32) = 8(32) + 12
= 256 +12
f(32) = 268 units
.
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The equation P=6s represents the perimeter P of a regular hexagon with side length s. What is the
perimeter of a regular hexagon with side length 2 mm?
The perimeter is
mm.
Answer:
The perimeter is 12mm
Step-by-step explanation:
Plug 2 for s in P=6s so 6*2=12
Please help me somebody I need help if you do thank you so much
Answer:
Step-by-step explanation:
The inequality is x > 45.
This is so because the dot is not shaded which tells us that the value of x is not equal to 45.
Also, the direction of the arrow is going to the right on the positive side of the number line which means it's greater than 45.
Lisa's situation could be represented by just reversing the arrow on the above graph.
Hope this helps! :)
a primary difference between how b cells recognize antigen and how t cells recognize antigen is that
A primary difference between how B cells recognize antigens and how T cells recognize antigens is that B cells directly bind to the antigen, whereas T cells recognize antigens only when they are presented on the surface of antigen-presenting cells (APCs) in the context of major histocompatibility complex (MHC) molecules.
Here's a step-by-step explanation of this difference:
1. B cells have B cell receptors (BCRs) on their surface that can directly bind to the specific antigen. This binding leads to B cell activation, proliferation, and differentiation into plasma cells that produce antibodies specific to that antigen.
2. T cells, on the other hand, have T cell receptors (TCRs) on their surface that do not directly recognize free antigens. Instead, they recognize small fragments of antigens (peptides) that are presented on the surface of APCs, such as dendritic cells, macrophages, and B cells.
3. The antigens are processed inside the APCs into smaller peptides, which then bind to MHC molecules. There are two types of MHC molecules:
MHC class I and MHC class II. MHC class I molecules present antigens to CD8+ T cells (also called cytotoxic T cells), while MHC class II molecules present antigens to CD4+ T cells (also called helper T cells).
4. The TCR of a T cell recognizes the specific peptide-MHC complex on the surface of an APC, leading to T cell activation, proliferation, and differentiation into effector T cells that help in eliminating the pathogen or infected cells.
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Three friends decide to share the cost to rent an apartment equally. The apartments that they are considering cost at least 1 200 per month. Write and solve an inequality to represent each person's share of the rental cost
Three friends decide to share the cost to rent an apartment equally. The apartments that they are considering cost at least 1 200 per month. Write and solve an inequality to represent each person's share of the rental cost
Lets highlight some key words.
There are three friends and they equally have to share an unknown amount of number to earn up to the 1200 per month,
X=Amount needed to pay the rent fee.
Since there are 3 friends and they have to split we have to multiply,
3x, "At least" is less than or equal to so .
3x \(\leq\)
Additionally theres 1200 per month so the friends need to share there rent and 1200 is the total it should be put as
3x \(\leq\) $1200
To add up to the rent, and to solve the inequality
we have to do the opposite of multiplication, and divide.
1200/3 = 400, x \(\leq\) 400
(Trig word problems)
From a hot-air balloon, Enola measures a 22° angle of depression to a landmark that’s 310 feet away, measuring horizontally. What’s the balloon’s vertical distance above the ground? Round your answer to the nearest hundredth of a foot if necessary.
Step-by-step explanation:
See image
which expression is equivalent to 4/6 of 36 ?
Answer:
First, find the answer for 36 ÷ 4. Which is 9.
Now calculate each expression until you get the answer of 9.
4 ÷ 36 = 4 * 1/36 = 4/36 = 1/9
36 ÷ 1/4 = 36 * 4 = 144
1/36 * 1/4 = 1/144
36 * 1/4 = 36/4 = 9
So, the last option is the answer. D. 36 * 1/4.
Answer:
35 1/3 I believe
Step-by-step explanation:
36 divided by 4/6 and you 35 1/3
Rosanne is training for the Austin marathon, so she plans to run 10 miles in her neighborhood this weekend. It usually takes her an hour to run 6 miles. If she generally drinks 0.5 cups of water every 1 3 of an hour, how many cups of water will she drink on her run?
Answer:2.5 cups
Step-by-step explanation:
Given
Rosanne runs 6 miles in an hour
If she drinks 0.5 cups of water every \(\frac{1}{3}\) of an hour
So in 1 hour Rosanne drinks 1.5 cups
So, for 6 miles Rosanne drinks 1.5 cups
i.e. For \(1\ mile \quad \equiv \quad \frac{1}{4}\ \text{cup}\)
for \(10\ mile\quad \equiv \quad \frac{10}{4}\ \text{cup}\)
\(=2.5\ \text{cup}\)
Answer:
2.5
Step-by-step explanation:
My mother purchase my candy bars at Food lion for $13.50 what is the price per candy bar?
1.5 dollars per candy bar because 13.50 divided by 9 is 1.5 :)
5) A social media research group conducting a study. They wanted to study the sampling distribution of the mean number of hours spent per day on sociai media for college students. They took a sample of 81 students from a larger university and found that the average number of hours was 4:3 hours, and the standard deviation was 1.8 hours per student. Answer the following questions about the sampling distribution of mean. 1) What is the shape of this sampling distribution of mean of number hours spent on social media? 2) What is the mean of the sampling distribution of mean? That is the mean of all means of all samples of size 81. 3) What is the standard deviation of the sampling distribution? 4) Let's suppose one sample of 81 students gave the mean of 5.0 hours per day on social media. Was this an unusual sample - yes or no? 5) If the sample size were 36, what would the standard deviation of the sampling distribution be?
1) Shape of sample mean is bell shaped, it is approximately normal distributed. is the shape of this sampling distribution of mean of number hours spent on social media.
2) 4.3 is the mean of the sampling distribution of mean. That is the mean of all means of all samples of size 81.
3) 0.2 is the standard deviation of the sampling distribution.
4) Let's suppose one sample of 81 students gave the mean of 5.0 hours per day on social media. Since, z score is greater than 2 ,so it is unusual.
5) If the sample size were 36, 0.3 would the standard deviation of the sampling distribution be.
Here, we have,
given
Mean= 4.3
Standard deviation = 1.8
we have,
1)
According to central limit theorem
Shape of sample mean is bell shaped, it is approximately normal distributed.
2)
Mean of sample mean = population mean = 4.3
3)
Standard deviation of sample mean is:
s/√n
=1.8/9
=0.2
According to central limit theorem
Sample mean ~N(u,s/√n )
4)
Mean = 5
Sample mean ~ N(4.3,0.2)
Now ,
Z score for given sample mean = 3.5
Since, z score is greater than 2 ,so it is unusual.
5)
n=36
Standard deviation is:
s/√n
=1.8/6
=0.3
6)
Left tailed test, t test , df =30-1 =29
use excel or t table
Option b is correct.
Excel output is given
p value is 0.020014
Formula used is:
T.DIST(-2.15,30-1,TRUE)
we get,
unusual if z score is |z|>2
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whats the polynomial of (7x+7)(x+2)
Answer:
okkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
will you be my friend
Step-by-step explanation:
.......... okkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkkk
PLS HELP ME ON THIS QUESTION I WILL MARK YOU AS BRAINLIEST IF YOU KNOW THE ANSWER!!
The _____________ may be the average of 2 values in a data set.
A. range
B. interquartile range
C. mode
D. median
Answer:
as per my nowledge ans wud be b
as A means difference of highest and lowest
C means value appearing frequently
D means middle number or ascending or descending sequence
beainliest plz
Answer:
b
i dont want brainlist
Step-by-step explanation:
In circle C what is angle 2
Answer:
33 degrees.
Step-by-step explanation: Half of a circle is 180 degrees. If we view the half of circle with angle C on it we can see the other part of the half of circle is 147 degrees. Since we know half a circle is 180 degrees, we subtract our known variable from 180 to get our unknown angle C, 33 degrees.
Acellus
If this trapezoid is moved through the
translation (x+1, y-3), what will the
coordinates of D' be?
5
B
С
4
j
AP
2
D
1
-7
-6
-5 -4
- -2
-1 0
1
2
3
4
D' = ([?],
Answer:
D' (2 , -1)Here,
D(1,2)
Now,
(X+1 , y-3)
D' (1+1 , 2-3)
D'( 2, -1)
Hope this helps...
Good luck on your assignment..
I'll answer the other three just in case :)
original : A = ( -6 , 2 )
formula : ( x+1 , y-3 )
( -6 + 1 ) , ( 2 - 3 )
A = ( -5 , -1 )
_________________
original : B = ( -5 , 4 )
formula : ( x+1 , y-3 )
( -5 + 1 ) , ( 4 - 3 )
B = ( -4 , 1 )
_________________
original : C = ( -2 , 4 )
formula : ( x+1 , y-3 )
( -2 + 1 ) , ( 4 - 3 )
C = ( -1 , 1 )
in a large population, 54 % of the people have been vaccinated. if 4 people are randomly selected, what is the probability that at least one of them has been vaccinated?
The probability that at least one of them has been vaccinated is 0.9552
Probability:
Probability defines the possible occurrence of any particular required event.
Given,
Here we need to find in a large population, 54 % of the people have been vaccinated. if 4 people are randomly selected, what is the probability that at least one of them has been vaccinated.
Here we have to know that,
The situation where at least one out of 4 are vaccinated includes all but one possibility, that which none of the 4 are vaccinated.
The sum of all probabilities must equal 1.
Let Q be probability none of the 4 are vaccinated.
Let P be probability that at least 1 is vaccinated.
Then the probability is calculated as,
P = 1 - Q
Now if 54% are vaccinated, then 46% are not vaccinated.
Thus any given person has a probability of 0.46 of not being vaccinated.
=> Q = (0.46)⁴
=> Q = 0.0448
Then apply the value to the formula,
=> P = 1 - 0.0448
=> P = 0.9552
Therefore, the probability that at least one of them has been vaccinated 0.9552.
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Kim was walking down a rocky path. For 4 minutes, the elevation dropped at the same rate. Altogether it dropped 8 feet. What was the change in elevation each minute?
Answer:
-2 ft/min
Step-by-step explanation:
If Kim dropped for a total of 8 feet over the course of 4 minutes, then 8 feet/4 min equals 2 ft/min, but because they are dropping it should be negative.
When comparing three or more populations means within a set of quantitative data that is categorized according to one factor/treatment, a one-way ANOVA is appropriate.a. It is also appropriate in this situation, however, to compare two means at a time using multiple independent two sample t-tests. True or False?b. True. It is appropriate to compare two means at a time with independent two sample t-tests but it might be time-consuming.c. False. It is not appropriate to compare two means at a time in the way described. This would inflate the overall Type I Error and is a 'Multiple Testing' problem. The one-way ANOVA controls for the Type I Error and should be used instead.
c. False. It is not appropriate to compare two means at a same time with the way described above. This would remove the overall Type I Error is a 'Multiple Testing' problem.
Why it is not appropriate to compare two means at a time in the way described?The one-way ANOVA controls for the Type I Error and should be used instead. When comparing multiple means, conducting multiple independent two-sample t-tests is not recommended because the probability of committing a Type I error increases with each additional test, leading to an inflated overall Type I error rate.
ANOVA is a better method for comparing means when there are more than two groups as it compares all means simultaneously and controls for Type I error.
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3) In recent years, a growing array of entertainment options competes for consumer time. By 2004 , cable television and radio surpassed broadcast television, recorded music, and the daily newspaper to become the two entertainment media with the greatest usage (The Wall Street Journal, January 26, 2004). Researchers used a sample of 10 individuals and collected data on the hours per week spent watching cable television and hours per week spent listening to the radio. Use a .05 level of significance and test for a difference between the population mean usage for cable television and radio.
A study conducted in 2004 examined the usage of cable television and radio among 10 individuals to determine if there was a significant difference in the average hours spent on each medium. Using a significance level of 0.05, statistical analysis was performed to test for a disparity between the population mean usage of cable television and radio.
The researchers collected data on the number of hours per week spent watching cable television and listening to the radio from a sample of 10 individuals. The objective was to determine if there was a significant difference in the average usage between cable television and radio, considering the increasing competition among various entertainment options.
To test for a difference between the population mean usage for cable television and radio, a statistical hypothesis test was conducted. The significance level (α) of 0.05 was chosen, which means that the results would be considered statistically significant if the probability of obtaining such extreme results by chance alone was less than 5%.
The test compared the means of the two samples, namely the average hours spent watching cable television and listening to the radio. By analyzing the data using appropriate statistical techniques, such as a two-sample t-test, the researchers determined whether the observed difference in means was statistically significant or could be attributed to random variation.
After conducting the hypothesis test, if the p-value associated with the test statistic was less than 0.05, it would indicate that there was a significant difference between the population mean usage of cable television and radio. Conversely, if the p-value was greater than 0.05, there would be insufficient evidence to conclude a significant disparity.
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the chart gives prices and output information for the country of new zealand. use this information to calculate real and nominal gdp for both years. use 2017 as the base year.
The nominal GDP for the year 2017 is $87,000, and the real GDP for the year 2017 is $87,000.
How to calculate real and nominal GDP?Using a base year,the formula to calculate the Real GDP is given below:
Real GDP = Nominal GDP ÷ Deflator (in decimal)
Where, Deflator = (Price of base year goods and services ÷ Price of current year goods and services) × 100
Nominal GDP for the year 2017= 1,650 × 10 + 2,820 × 25= 16,500 + 70,500= 87,000
Nominal GDP for the year 2019= 1,900 × 12 + 3,250 × 27= 22,800 + 87,750= 110,550 Using the above formula,
Deflator for the year 2017 can be calculated as:
Deflator for 2017= (P2017 / P2017) × 100= (1 × 10 + 2 × 25) / (1 × 10 + 2 × 25) × 100= 100
Similarly, Deflator for the year 2019 can be calculated as:
Deflator for 2019= (P2019 / P2017) × 100= (1.10 × 12 + 2.75 × 27) / (1 × 10 + 2 × 25) × 100= 120.25
Now, Real GDP for the year 2017= 87,000 / 100= $87,000 Real GDP for the year 2019= 110,550 / 120.25= $917.54 million.
Thus, the nominal GDP for the year 2017 is $87,000, and the real GDP for the year 2017 is $87,000. The nominal GDP for the year 2019 is $110,550, and the real GDP for the year 2019 is $917.54 million.
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Ryan and Sarah collect baseball cards. Ryan has 150 baseball cards and collects 10 cards per week. Sarah has
200 baseball cards and collects 5 cards per week. After how many weeks will Ryan and Sarah have the same
number of baseball cards? Write and solve an equation to model the problem. Explain the meaning of the
solution.
Answer:
10 weeks
In 10 weeks, they will have the same amount of cards.
Step-by-step explanation:
150+10x=200+5x
5x=50
x=10
What is the measure of circumscribed
O 45°
O 50°
O 90°
O 95°
The measure of the inscribed angle is equal to 90 degrees
What is an inscribed angleThe inscribed angle theorem mentions that the angle inscribed inside a circle is always half the measure of the central angle or the intercepted arc that shares the endpoints of the inscribed angle's sides. In a circle, the angle formed by two chords with the common endpoints of a circle is called an inscribed angle and the common endpoint is considered as the vertex of the angle.
In this problem, the side length of the square is 5 which forms 90 degrees to all the other sides.
The measure of the circumscribed angle is 90 degree
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What is the decimal multiplier to increase by 1.7%?
In a certain investigation: 460 persons were involved in the study: and based on an enquiry on their age. it was known that 75% of them were 22 or more years. The following frequency distribution shows the age composition of the persons under study. Find the mean and modal life of condensers_ Mid; age in years No. of persons 18 f; 23 28 33 90 122 ; 38 56 48 24 20 33'
Therefore , the solution of the given problem of percentage comes out to be 38 years old is the median age.
What does a percentage actually mean?In statistics, a "a%" is a figure or statistic that is expressed as a percentage of 100. The words "pct," "pct," but instead "pc" are also not frequently used. However, the sign "%" is frequently used to represent it. The percentage sum is flat; there are no dimensions. Percentages are truly integers because their numerator almost always equals 100. Either the % symbol (%) or the additional term "fraction" must come before a number to denote that it is a percentage.
Here,
The following algorithm must be used to determine the mean age:
=> mean = (all years added together) / (total number of persons)
The representative age for each age group is the age that falls in the middle of the range. With this approach, we can determine the total age as follows:
=>18(9) + 23(28) + 28(33) + 33(90) + 38(122) + 56(48) + 48(24) + 76(20) + 1089(0.25)
=> 162 + 644 + 924 + 2970 + 4636 + 2688 + 1152 + 1520 + 272.25
=>18(9) + 23(28) + 28(33) + 33(90) + 38(122) + 56(48) + 48(24) + 76(20) + 1089(0.25)
According to the information provided, there are 460 people in total.
=> mean = 17745.25 / 460
=> mean = 17745.25 / 460
As a result, the average lifespan is roughly 38.552 years.
The age category in this instance with the highest frequency has a midpoint of 38 and a frequency of 122. As a result, 38 years old is the median age.
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What is the sum of a rational number but a product of an irrational one.
I'm going to only focus on part B
If 'a' and 'b' are rational numbers, then
a = p/qb = r/swhere p,q,r,s are integers. Also, q and s are nonzero. In fact, this context would make sense to also have p and r to be nonzero as well.
The perimeter of this rectangle is
P = 2*(length+width)
P = 2*(a+b)
P = 2*(p/q + r/s)
P = 2*(ps/qs + qr/qs)
P = 2*( (ps+qr)/qs )
P = (2ps+2qr)/qs
P = integer/integer = some rational number
We see that the perimeter P is rational if and only if 'a' and 'b' are rational.
From this, notice that the area is
area = length*width = a*b = (p/q)*(r/s) = (pr)/(qs)
Showing that the area is also rational.
If we wanted the area to be irrational, then we'd have to have either 'a' and/or 'b' irrational; this would then make the perimeter irrational as well. This contradiction is sufficient to show that case B is not possible.
There is no way to have a rational perimeter but an irrational area.
A ball is thrown straight up into the air, 8 ft to a right of a house, which is represented by the origin on the coordinate plane. For which values of A, B, and C will Ax + By = C represent the line that includes the path of the ball, where x is the horizontal distance and y is the vertical distance, in feet, from the house?
The required values are A = 1, B = 0, and C = 8 because the equation for the thrown ball's path will be x = 8.
Let the vertical line be the y-axis and the horizontal line be the x-axis, the ball is thrown from a place that is parallel to the y-axis (8,0).
Because the house is the starting point and the ball is thrown from a position 8 feet to the right of the house,
As a result, the equation for the thrown ball's path will be x = 8.
Therefore, A = 1, B = 0 and C = 8.
Hence, the required values are A = 1, B = 0, and C = 8 because the equation for the thrown ball's path will be x = 8.
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he Bishop family celebrated a birthday by dining out at a local restaurant. Their bill was $97.45. Mr. Bishop would like to leave a 18 percent tip at the table for the server. What is the total amount that the family will pay for the dinner? Round to the nearest cent if necessary
Answer: it is 114.99
Step-by-step explanation:
Answer:114.99
Step-by-step explanation:
Let x be an integer. Prove that if x is not divisible by 3, then
(x + 1)(x + 2) is divisible by 3
Answer:
(x + 1)(x + 2) is divisible by 3.
Step-by-step explanation:
Assume that x is not divisible by 3. This means that x can be expressed as x = 3k + r, where k is an integer and r is the remainder when x is divided by 3. Since x is not divisible by 3, the remainder r must be either 1 or 2.
Case 1: r = 1
If r = 1, then x = 3k + 1. Now let's consider (x + 1)(x + 2):
(x + 1)(x + 2) = (3k + 1 + 1)(3k + 1 + 2)
= (3k + 2)(3k + 3)
= 3(3k^2 + 5k + 2)
We can see that (x + 1)(x + 2) is divisible by 3.
Case 2: r = 2
If r = 2, then x = 3k + 2. Now let's consider (x + 1)(x + 2):
(x + 1)(x + 2) = (3k + 2 + 1)(3k + 2 + 2)
= (3k + 3)(3k + 4)
= 3(3k^2 + 7k + 4)
We can see that (x + 1)(x + 2) is divisible by 3.
Hence, the statement is proven.
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select the correct answer. juniors and seniors were surveyed about whether they plan to attend a school dance. 94 out of 130 juniors plan to attend. 12 out of 140 seniors do not plan to attend. the following table shows the results. grade attending yes no total juniors 94 36 130 seniors 12 128 140 total 106 164 270 what mistake was made in the table? a. the responses for the seniors are reversed. b. the number of juniors not attending is incorrect. c. the total for the number of seniors is incorrect. d. the responses for the juniors are reversed.
The mistake in the table is that the responses for the seniors are reversed.
To identify the mistake in the table, we can compare the given data with the table entries. The table represents the number of juniors and seniors who plan to attend or not attend the school dance.
According to the given information, 94 out of 130 juniors plan to attend. This means that the number of juniors attending is correctly stated as 94. However, the table incorrectly shows 36 juniors not attending.
The correct number of juniors not attending can be calculated by subtracting the number of juniors attending from the total number of juniors: 130 - 94 = 36. Therefore, option (b) is not the correct answer.
Similarly, the number of seniors not planning to attend is given as 12 out of 140. However, the table shows 128 seniors not attending. This indicates that the responses for the seniors are reversed. The correct number of seniors not attending can be calculated by subtracting the number of seniors attending from the total number of seniors: 140 - 12 = 128. Therefore, option (a) is the correct answer.
In conclusion, the mistake in the table is that the responses for the seniors are reversed. The number of juniors not attending and the total for the number of seniors are correct as per the given information.
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In AWXY, mW
Find mZX
(2x – 12), m_X = (2x + 17), and m_Y = (9x-7)
Find m
Answer:
45
Step-by-step explanation:
The sum of interior angles in a triangle is equal to 180
2x - 12 + 2x + 17 + 9x - 7 = 180 add like terms
13x - 2 = 180 add 2 to both sides
13x = 182 divide both side by 13
x = 14
m<X = 2x + 17 replace x with 14
2*14 + 17 = 45
what is the true size of a block with nominal size of 6x4x16?
The true size of a block with a nominal size of 6x4x16 may vary. The nominal size refers to the intended dimensions, but the actual size can differ due to manufacturing tolerances and other factors.
The nominal size of 6x4x16 indicates the intended dimensions of the block, with a length of 16 units, width of 6 units, and height of 4 units. However, the true size of the block can vary from the nominal size due to manufacturing tolerances and other factors.
Manufacturing processes may introduce slight variations in the actual dimensions of the block. These variations are commonly referred to as tolerances. Tolerances account for potential deviations from the intended dimensions and are necessary to accommodate practical considerations during manufacturing.
Therefore, without specific information on the tolerances or manufacturing specifications, it is not possible to determine the true size of a block with a nominal size of 6x4x16. The true size can vary within an acceptable range based on manufacturing tolerances and other factors.
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