Answer:
D. 204% increase
Question 4(Multiple Choice Worth 2 points)
(Comparing Data MC)
The data given represents the height of basketball players, in inches, on two different girls' teams.
Allstars
73 62 60
63 72 65
69 68 71
66 70 67
60 70 71
Super Stars
66 68 62
63 47 64
65 50 60
64 65 65
58 60 55
Compare the data and use the correct measure of center to determine which team typically has the tallest players. Explain your answer.
The Allstars, with a mean of about 67.1 inches
The Super Stars, with a mean of about 60.8 inches
The Allstars, with a median of 68 inches
The Super Stars, with a median of 63 inches
Answer:
The answer to your problem is, A. The Allstars, with a mean of about 67.1 inches
Step-by-step explanation:
Allstars mean height:
= (73 + 62 + 60 + 63 + 72 + 65 + 69 + 68 + 71 + 66 + 70 + 67 + 60 + 70 + 71) / 15
= 1007 / 15
= 67.6 inches
Super Stars mean height:
= (66 + 68 + 62 + 63 + 47 + 64 + 65 + 50 + 60 + 64 + 65 + 65 + 58 + 60 + 55) / 15
= 912 / 15
= 60.2 inches
We can see that the Allstars team has a higher mean height than the Super Stars team, with an average of 67.6 inches compared to 60.2 inches. Therefore, the Allstars team typically has the tallest players
Thus the answer to your problem is, A. The Allstars, with a mean of about 67.1 inches
Fletcher eats 2/8 of a tomato.patsy eat 1/8 of some tomato .what fraction of the tomato do they eat in all
Answer:
3/8
Step-by-step explanation:
2/8 + 1/8 = 3/8
Which statement accurately describes the vector shown?
Answer:
magnitude of √61 and a direction angle equal to approximately 40°
Step-by-step explanation:
I inserted the x,y axis into a vector calculator to get the magnitude and angle :D
The magnitude of the vector is √61 and the direction of the angle is 40 degrees option (C) magnitude of √61 and a direction angle equal to approximately 40° is correct.
What is a vector?It is defined as the quantity that has magnitude as well as direction also the vector always follows the sum triangle law.
We have a vector shown in the picture.
The coordinate of the vector are:
The tail coordinate = (0, 0)
The head coordinate = (6, 5)
We can find the magnitude of the vector using the distance formula:
The distance formula can be given as:
\(\rm M=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
\(\rm M=\sqrt{(6-0)^2+(5-0)^2}\)
M = √61
The direction of the angle:
tanA = 5/6
tanA = 0.8333
A =39.80 ≈ 40 degrees
Thus, the magnitude of the vector is √61 and the direction of the angle is 40 degrees option (C) magnitude of √61 and a direction angle equal to approximately 40° is correct.
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-6(x)² + y³ - 8.
For x = 3
For y = 2
Answer:
- 54
Step-by-step explanation:
substitute x = 3 , y = 2 into the expression
- 6x² + y³ - 8
= - 6(3)² + 2³ - 8
= - 6(9) + 8 - 8
= - 54 + 0
= - 54
Which of the following is an irrational number?
A. 3.8
B. The square root of 66
C. The square root of 9
D. 6/11
Answer:
option D. 6/11
Step-by-step explanation:
What are irrational numbers?Simply put, they are numbers that cannot be written as a simple fraction. Irrational means they are not Rational.
In other words, they cannot be expressed as a ratio of two numbers
6/11 is an irrational number
I need three examples on how math is used in psychology.
Answer: 1) Error response times
2) Memory Scanning, visual search
3) Stimulus identification
Step-by-step explanation:1) response times reflext the time it takes to interpret a stimulus,get info from memory, initiate a muscle response
2) The hippocampus retrieves info from the working memory and begins to change the brains physical neural wiring
3) A decisive role in our perception and cognition
In general, there are two areas of psychology where mathematics is heavily utilized: mathematical modeling of psychological theories and experimental phenomena, which gives rise to mathematical psychology, and statistical approaches to quantitative measurement practices in psychology, which give rise to psychometrics.
sarah is playing a game in which she rolls a number cube 20 times the results are recorded in the chart below. what is the experimental probability of rolling a 1 or a 2? answers 0.3, 0.45, 0.65, 1.25.
The experimental probability of rolling a 1 or a 2 is 0.2.
Hence, Option A is correct.
We know that,
The experimental probability of an event is defined as the number of times the event occurred divided by the total number of trials.
In this case,
The event is rolling a 1 or a 3,
Which occurred ⇒ 3 + 1
= 4 times.
Given that there are total number of trials = 20.
Therefore,
The experimental probability of rolling a 1 or a 3 = 4/20,
= 1/5
= 0.2
Hence, the required probability is 0.2.
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The complete question is:
Sarah is playing a game in which she rolls a number cube 20 times. The results are recorded in the chart below. What is the experimental probability of rolling a 1 or a 3?
Number on cube:1,2,3,4,5,6
Number of times event occurs:3,6,1,5,3,2
A.0.2
B.0.3
C.0.6
D.0.83
or A line passes through the points (1,1) and (2,7). Write its equation in slope-intercept form.
\((\stackrel{x_1}{1}~,~\stackrel{y_1}{1})\qquad (\stackrel{x_2}{2}~,~\stackrel{y_2}{7}) ~\hfill \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{7}-\stackrel{y1}{1}}}{\underset{\textit{\large run}} {\underset{x_2}{2}-\underset{x_1}{1}}} \implies \cfrac{ 6 }{ 1 } \implies 6\)
\(\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{1}=\stackrel{m}{ 6}(x-\stackrel{x_1}{1}) \\\\\\ y-1=6x-6\implies {\Large \begin{array}{llll} y=6x-5 \end{array}}\)
Which of the following is an example of a permutation?
OA. The number of ways to choose 3 students to represent a school at
a national competition
OB. The number of ways 7 books can be selected from 50
OC. Picking 5 sets of towels from 25 different sets
OD. Selecting a first-, second-, and third-place winner at a baking
competition
SUBMIT
Permutation helps us to know the number of ways an object can be arranged in a particular manner. The correct option is D.
What are Permutation and Combination?Permutation helps us to know the number of ways an object can be arranged in a particular manner. A permutation is denoted by 'P'.
The combination helps us to know the number of ways an object can be arranged without a particular manner. A combination is denoted by 'C'.
The example which is an example of permutation is Selecting a first-, second-, and third-place winner at baking.
Hence, the correct option is D.
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let |g| 5 15. if g has only one subgroup of order 3 and only one of order 5, prove that g is cyclic. generalize to |g| 5 pq, where p and q are prime.
To prove that the group g is cyclic, we analyze the possible values of the order |g|. We consider the cases for each possible value and demonstrate that in all cases, g is either cyclic or leads to a contradiction.
For |g| = 1, 2, 3, 5, or 7, the groups of these orders are always cyclic.
If |g| = 4, 6, 8, 9, 10, 12, or 15, we show that g cannot have the required subgroups. Assuming g is not cyclic, we find an element x of order 2 and additional elements y, z, w, etc., also of order 2. This contradicts the given conditions since g would be isomorphic to Z₂ × Z₂ or have more than one subgroup of order 3 or 5.
For composite orders |g| = pq, where p and q are prime, we generalize the analysis. By Cauchy's theorem, g has elements of order p and q, and since there is only one subgroup of each order, they are cyclic. We show that the intersection of these subgroups cannot have an order of pq, leading to a contradiction. Hence, g is cyclic.
Therefore, in all cases, g is proved to be cyclic. QED.
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Find the distance between each pair of points using distance formula. (-4, 6) and (3, -7)
Answer:
√218
Step-by-step explanation:
√(x2-x1)^2+(y2-y1)^2=√218
Looking for help pleaseeee
Answer:
an = a(n-1) -4
Step-by-step explanation:
From the table we see that
a1 = 15 , a2 = 11, a3 = 7 , a4= 3, a5 = -1...
Notice the numbers decrease by 4 so
a2 = a1 -4
a3 = a2 -4
a4 =a3 -4
a5= a4-4
generalized we will have
an = a n-1 -4
The scale factor of two similar polygons is given. Find the ratio of their perimeters and the ratios of their areas.
1) 3:1
2) 7/4
The ratios of their perimeters and the ratios of their areas are 1) 3:1 and 9:1 and 2) 7:4 and 49:16.
Given the scale factor of two similar polygons, we need to find the ratio of their perimeters and the ratios of their areas,
To find the ratio of the perimeters of two similar polygons, we can simply write the scale factor as it is because the ratio of the perimeter is equal to the ration of the corresponding lengths.
1) So, perimeter = 3:1
The ratio of areas between two similar polygons is equal to the square of the scale factor.
Since the scale factor is 3:1, the ratio of their areas is:
(Ratio of areas) = (Scale factor)² = 9/1 = 9:1
Similarly,
2) Perimeter = 7:4
Area = 49/16
Hence the ratios of their perimeters and the ratios of their areas are 1) 3:1 and 9:1 and 2) 7:4 and 49:16.
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Linear parent function f is graphed on the grid.
Which graph best represents h (x) = - f (x) + 3?
Find the x and y-intercept(s) of y= 2 (x +1)^2 +3.Please i answered this but i did it wrong I need a graph provided for the answer PLSSSS
Find the intervals on which the following functions are
increasing and the interval on which they are decreasing. Also find
the relative extremum. Please solve it in detail.
(x) = 3x5-5x3
The function f(x) = 3x⁵ - 5x³is increasing on the interval (-∞, -1] and [1, ∞), and it is decreasing on the interval [-1, 1]. The relative extremum occurs at x = -1 and x = 1.
To determine the intervals on which the function is increasing or decreasing, we need to analyze the first derivative of the function. The first derivative represents the rate of change of the function at different points. When the derivative is positive, the function is increasing, and when the derivative is negative, the function is decreasing.
To find the first derivative of f(x) = 3x⁵ - 5x³, we apply the power rule. The derivative of 3x⁵ is 15x⁴, and the derivative of -5x³ is -15x². Therefore, the first derivative is f'(x) = 15x⁴ - 15x².
Next, we need to determine the critical points where the derivative equals zero or is undefined. Setting f'(x) = 0, we find that x = -1 and x = 1 are the critical points.
Now, we examine the sign of the derivative in the intervals between and around the critical points. For x < -1, the derivative is positive, indicating that the function is increasing. For -1 < x < 1, the derivative is negative, indicating that the function is decreasing. And for x > 1, the derivative is positive again, indicating that the function is increasing.
Therefore, the function is increasing on the intervals (-∞, -1] and [1, ∞), and it is decreasing on the interval [-1, 1]. The relative extremum occurs at x = -1 and x = 1.
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Dan is buying turkey cutlets for $2.69 per pound. The package weighs 4 pounds, 8 ounces.
How much will the cutlets cost?
if I did it right then it's $32.38.
CC has the following beginning balances in its stockholders' equity accounts on January 1, 2012: Common Stock, $100,000; Additional Paid-in Capital, $4,100,000; and Retained Earnings, $3,000,000. Net income for the year ended December 31, 2012, is $800,000. Court Casuals has the following transactions affecting stockholders' equity in 2012:
May 18 Issues 25,000 additional shares of $1 par value common stock for $40 per share.
May 31 Repurchases 5,000 shares of treasury stock for $45 per share.
July 1 Declares a cash dividend of $1 per share to all stockholders of record on July 15. Hint: Dividends are not paid on treasury stock.
July 31 Pays the cash dividend declared on July 1.
August 10 Reissues 2,500 shares of treasury stock purchased on May 31 for $48 per share.
Taking into consideration all the entries described above, prepare the statement of stockholders' equity for the year ended December 31, 2012.
Total stockholders’ equity 7,800,000
Statement of stockholders’ equity for CC for the year ended December 31, 2012:Particulars Amount ($)
Common Stock 100,000
Additional Paid-in Capital 4,100,000
Retained Earnings (Opening Balance) 3,000,000
Add: Net Income for the year ended December 31, 2012 800,000
Total retained earnings 3,800,000
Less: Cash Dividend Declared on July 1 and paid on July 31 (200,000)
Retained earnings (Closing balance) 3,600,000
Total stockholders’ equity 7,800,000
Explanation:The given information is as follows:Common Stock on January 1, 2012 = $100,000Additional Paid-in Capital on January 1, 2012 = $4,100,000
Retained Earnings on January 1, 2012 = $3,000,000Net Income for the year ended December 31, 2012 = $800,000Cash Dividend Declared on July 1 and paid on July 31 = $200,000
To prepare the statement of stockholders’ equity for the year ended December 31, 2012, we will begin by preparing the opening balances of each of the equity accounts. We will then add the net income to the retained earnings account.
The closing balance for retained earnings is then computed by subtracting the cash dividend declared and paid from the total retained earnings. Finally, the total stockholders' equity is calculated by adding the balances of all the equity accounts.
Calculations:Opening balance of common stock = $100,000
Opening balance of additional paid-in capital = $4,100,000
Opening balance of retained earnings = $3,000,000
Net Income for the year ended December 31, 2012 = $800,000
Retained earnings (Opening Balance) = $3,000,000
Add: Net Income for the year ended December 31, 2012 = $800,000
Total retained earnings = $3,800,000Less: Cash Dividend Declared on July 1 and paid on July 31 = $200,000Retained earnings (Closing balance) = $3,600,000
Total stockholders’ equity = Common Stock + Additional Paid-in Capital + Retained Earnings (Closing balance) = $100,000 + $4,100,000 + $3,600,000 = $7,800,000
Therefore, the statement of stockholders’ equity for CC for the year ended December 31, 2012, is as follows:Particulars Amount ($)
Common Stock 100,000
Additional Paid-in Capital 4,100,000
Retained Earnings (Opening Balance) 3,000,000
Add: Net Income for the year ended December 31, 2012 800,000
Total retained earnings 3,800,000
Less: Cash Dividend Declared on July 1 and paid on July 31 (200,000)
Retained earnings (Closing balance) 3,600,000
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7. Here are the interest rates for two savings accounts:
• Savings account A-
.
• Savings account B
-
a compound interest rate of 2.5% per year.
an interest rate of 5% of the initial amount in the first year, then an
interest rate of 1% of the initial amount for each year thereafter.
litres
(2)
If you opened an account with an initial amount of £500 and then made no withdrawals, which
account would contain the larger amount after the first three years? You must show your working.
The account that would contain the larger amount after the first three years is savings account A.
Which account would have the larger balance?The formula that can be used to determine the future value of savings account A is:
FV = P (1 + r)^n
Where:
FV = Future value P = amount deposited R = interest rate N = number of years£500 x (1 + 0.025)^3
£500 x (1.025)^3 = £538.45
Interest earned in the first year with savings account B :
£500 x 0.05 = £25
Interest earned in the next two years:
£500 x 2 x 0.01 = £10
Total value savings account B after two years = £25 + £10 + £500 = £535
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12. Venu and Tanuj are running along a circular track. They take 48 seconds and 56 seconds to
complete a lap respectively. They begin from the starting point at the same time
6) How long does it take for them to meet at the starting point again?
How many laps will each boy have run by then?
Answer:
The meet at first time at starting point after 336 seconds,
Vanu have completed 7 laps while Tanuj has completed 6 laps.
Step-by-step explanation:
Given that Venu and Tanuj take 48 seconds and 56 seconds to
complete a lap respectively.
To meet them again at the startiong point, the time taken must be multiple of 56 and 48.
So, the minimum time required to meet them again at the startiong point is time taken for first time meet.
Time taken to first time meet is the smallest number which can be divided by 56 and 48, i.e the lowest common factor (LCM) of 56 and 48 which is 336 seconds or 5 minutes 36 seconds.
Number of laps by Venu
\(=\frac{336}{48}=7\)
Number of laps by Tanuj
\(=\frac{336}{56}=6\)
Which do you think will be larger, the average value of
f(x,y)=xy
over the square
0≤x≤4,
0≤y≤4,
or the average value of f over the quarter circle
x2+y2≤16
in the first quadrant? Calculate them to find out.
The average value of f(x, y) = xy over the square 0 ≤ x ≤ 4, 0 ≤ y ≤ 4 will be larger than the average value of f over the quarter circle x^2 + y^2 ≤ 16 in the first quadrant.
To calculate the average value over the square, we need to find the integral of f(x, y) = xy over the given region and divide it by the area of the region. The integral becomes:
∫∫(0 ≤ x ≤ 4, 0 ≤ y ≤ 4) xy dA
Integrating with respect to x first:
∫(0 ≤ y ≤ 4) [(1/2) x^2 y] |[0,4] dy
= ∫(0 ≤ y ≤ 4) 2y^2 dy
= (2/3) y^3 |[0,4]
= (2/3) * 64
= 128/3
To find the area of the square, we simply calculate the length of one side squared:
Area = (4-0)^2 = 16
Therefore, the average value over the square is:
(128/3) / 16 = 8/3 ≈ 2.6667
Now let's calculate the average value over the quarter circle. The equation of the circle is x^2 + y^2 = 16. In polar coordinates, it becomes r = 4. To calculate the average value, we integrate over the given region:
∫∫(0 ≤ r ≤ 4, 0 ≤ θ ≤ π/2) r^2 sin(θ) cos(θ) r dr dθ
Integrating with respect to r and θ:
∫(0 ≤ θ ≤ π/2) [∫(0 ≤ r ≤ 4) r^3 sin(θ) cos(θ) dr] dθ
= [∫(0 ≤ θ ≤ π/2) (1/4) r^4 sin(θ) cos(θ) |[0,4] dθ
= [∫(0 ≤ θ ≤ π/2) 64 sin(θ) cos(θ) dθ
= 32 [sin^2(θ)] |[0,π/2]
= 32
The area of the quarter circle is (1/4)π(4^2) = 4π.
Therefore, the average value over the quarter circle is:
32 / (4π) ≈ 2.546
The average value of f(x, y) = xy over the square 0 ≤ x ≤ 4, 0 ≤ y ≤ 4 is larger than the average value of f over the quarter circle x^2 + y^2 ≤ 16 in the first quadrant. The average value over the square is approximately 2.6667, while the average value over the quarter circle is approximately 2.546.
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16. Shane has a job offer in which he will receive $800 per month plus a commission of 2% of the
total price of the cars that he sells. At his current job, he receives $1,200 per month, plus a commission
of 1.5% of his total sales. How much must he sell per month to make the new job a better deal?
Answer: 80,000 sales per months
Step-by-step explanation:
im sorry i cant explain but i i know thats the answer
What is 31/87 as a percentage?
Give your answer rounded to one decimal place.
Answer:
35.6%
Step-by-step explanation:
31/87(100)
3100/87
35.6%
Answer:
35,6%
Step-by-step explanation:
31/87 = 0,35632184
As a percentage: 35,632184%
Rounded to one deciman place: 35,6%
Hi, can someone help ?
Answer:
i dont know the answer but the best way to find your answer is to read the question carefully and be careful for what u put as Ur answer it usually helps me out
Step-by-step explanation:
13 = d + 1 solve for d
12
13=d+1
13-1=d-1
12=d
I Will give brainliest to who can awnser and 10$ paypal if us speedy
Answer:
what question?
Step-by-step explanation:
Answer:
what's the question
Step-by-step explanation:
Given function f(x) = x - x ^-1/3, find value of x = c that satisfies Roll's Theorem on the interval [0, 1].
Solution
- The function given is:
\(f(x)=x-x^{-\frac{1}{3}}\)- Rolle's theorem states that:
"if a function f is continuous on the closed interval [a, b] and differentiable on the open interval (a, b) such that f(a) = f(b), then f′(x) = 0 for some x with a ≤ x ≤ b."
- The Rolle's theorem formula is:
\(\begin{gathered} f^{\prime}(c)=\frac{f(b)-f(a)}{b-a} \\ where, \\ c\text{ is the value of x that satisfies Rolle's theorem} \end{gathered}\)- The interval given to us is [0, 1], this implies that:
\(\begin{gathered} a=0 \\ b=1 \end{gathered}\)- We can confirm that:
\(\begin{gathered} f(a)=f(0)=0-0^{-\frac{1}{3}}=0-\frac{1}{0^{\frac{1}{3}}} \\ f(a)=undefined \\ f(b)=f(1)=1-1^{-\frac{1}{3}}=0 \\ \\ \therefore f(a)\ne f(b) \end{gathered}\)- Thus, since the values of f(a) and f(b) are not equal, no value of c would satisfy the Rolle's theorem
if 2x – 1 is a factor of 16x4
24x3 + 2x + f, find f.
Answer:
f = -5
Step-by-step explanation:
If 2x – 1 is a factor of 16x4 + 24x3 + 2x + f, find f.
If 2x - 1 = 16x⁴ + 24x³ + 2x + f, find f.
2x - 1 = 0
2x = 1
x = 1/2
Hence
f(1/2) = 16(1/2)⁴ + 24(1/2)³ + 2(1/2) + f
= 16(1/16) + 24(1/8) + 1 + f
= 1 + 3 + 1 + f
= 5+ f
f = -5
a circle is graphed on a coordinate grid and tgen reflected across the y-axis. if the center of the original circle was located at (x,y). which ordered pair represents the center of the new circle after the transformation
Answer:
The new center is the point (-x, y)
Step-by-step explanation:
When you reflect a point across the y-axis, the x-coordinate changes to its opposite (additive inverse).
See the attached image for an example.
The circle on the right has center (3, 1). When reflected across the y-axis, the reflected center is (-3, 1).
What is 4z(6x+7y)?
Please help!
Answer:
24xz + 28yz
Step-by-step explanation:
4z(6x + 7y) ← multiply each term in the parenthesis by 4z
= 24xz + 28yz
Answer:
24zx+28zy
Step-by-step explanation:
hope it helped u