Answer: 7238.23 ft
Step-by-step explanation:
Formula for volume of a sphere V = (4/3)*(π)*(r^3)
π = 3.141
r = 12
V = (4/3)*(3.141)*(12^3)
V = (4/3)*(3.141)*(1728)
V = 7238.23 ft
Or if you want you answer in terms of π:
V = (4/3)*(1728)*(π)
V = 2304π ft
a 0.350 inch diameter rod of an aluminum alloy is pulled to failure in a tensile test. if the final diameter of the rod at the fractured surface is 0.250 inches, what is the percentage reduction in area of the sample due to the test?
By Simplifying the expression, [tex](π(0.175)^2 - π(0.125)^2)/π(0.175)^2 * 100.[/tex] we find the percentage reduction in the area of the sample due to the test.
To find the percentage reduction in area of the sample, we need to calculate the difference in cross-sectional areas before and after the tensile test.
The cross-sectional area of a rod can be calculated using the formula: [tex]A = πr^2[/tex], where r is the radius of the rod.
Given that the initial diameter of the rod is 0.350 inches, the initial radius (r1) is 0.350/2 = 0.175 inches. Therefore, the initial cross-sectional area (A1) is[tex]π(0.175)^2.[/tex]
Similarly, the final diameter of the rod is 0.250 inches, and the final radius (r2) is 0.250/2 = 0.125 inches. The final cross-sectional area (A2) is [tex]π(0.125)^2[/tex].
Now, we can calculate the percentage reduction in area using the formula: (A1 - A2)/A1 * 100.
Substituting the values, we have: [tex](π(0.175)^2 - π(0.125)^2)/π(0.175)^2 * 100.[/tex]
Therefore, by Simplifying the expression, we find the percentage reduction in the area of the sample due to the test.
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the equation of line t is y=7/4x+2. Perpendicular to line t is line u, which passes through the point (2, – 2). What is the equation of line u?
keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above
[tex]y=\stackrel{\stackrel{m}{\downarrow }}{\cfrac{7}{4}}x+2\qquad \impliedby \qquad \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{ \cfrac{7}{4}} ~\hfill \stackrel{reciprocal}{\cfrac{4}{7}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{4}{7} }}[/tex]
so we're really looking for the equation of a line whose slope is -4/7 and it passes through (2 , -2)
[tex](\stackrel{x_1}{2}~,~\stackrel{y_1}{-2})\hspace{10em} \stackrel{slope}{m} ~=~ - \cfrac{4}{7} \\\\\\ \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}{(-2)}=\stackrel{m}{- \cfrac{4}{7}}(x-\stackrel{x_1}{2}) \implies y +2 = - \cfrac{4}{7} ( x -2) \\\\\\ y+2=- \cfrac{4}{7}x+\cfrac{8}{7}\implies y=- \cfrac{4}{7}x+\cfrac{8}{7}-2\implies {\Large \begin{array}{llll} y=- \cfrac{4}{7}x-\cfrac{6}{7} \end{array}}[/tex]
the scatterplot and regression line below show the average income, in dollars, in several major american cities plotted against the rent for a 2 22-bedroom apartment in those cities. the fitted line has a slope of 0.031 0.0310, point, 031. what is the best interpretation of this slope?
Main Answer:The best interpretation of the slope of 0.031.
Supporting Question and Answer:
What does the slope of 0.031 represent in the context of the scatterplot and regression line?
The slope of 0.031 represents the average increase in income, in dollars, for every unit increase in the rent for a 222 -bedroom apartment in the major American cities.
Body of the Solution:The best interpretation of the slope of 0.031 in this context would be as follows:
For every increase of 1 unit in the rent for a 222- bedroom apartment in the major American cities, the average income in dollars increases by approximately $0.031.
In other words, there is a positive correlation between the rent for a 222-bedroom apartment and the average income in these cities. As the rent increases, the average income tends to increase as well, although the relationship is not necessarily causative. The slope of 0.031 indicates the magnitude and direction of this relationship.
Final Answer:Therefore,the best interpretation of the slope of the fitted line, which is 0.031.
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The best interpretation of the slope of 0.031.
What does the slope of 0.031 represent in the context of the scatterplot and regression line?The slope of 0.031 represents the average increase in income, in dollars, for every unit increase in the rent for a 222 -bedroom apartment in the major American cities.
The best interpretation of the slope of 0.031 in this context would be as follows:
For every increase of 1 unit in the rent for a 222- bedroom apartment in the major American cities, the average income in dollars increases by approximately $0.031.
In other words, there is a positive correlation between the rent for a 222-bedroom apartment and the average income in these cities. As the rent increases, the average income tends to increase as well, although the relationship is not necessarily causative. The slope of 0.031 indicates the magnitude and direction of this relationship.
Therefore, the best interpretation of the slope of the fitted line, which is 0.031.
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Question III Loser Portfolio: Compute the return of a portfolio of "loser industries", the 15 industries with the worst past returns. • What is the average monthly return on this loser portfolio in excess of the risk free return? • What is the standard deviation of its monthly excess returns? • What is its monthly Sharpe ratio? • What is its annualized Sharpe ratio? • What is the annualized Sharpe ratio of the overall market index?
The average monthly return on the loser portfolio in excess of the risk-free return is 1.26 percent, the standard deviation of its monthly excess returns is 8.7 percent, the monthly Sharpe ratio is 0.145, the annualized Sharpe ratio is 0.5, and the annualized Sharpe ratio of the overall market index is 0.54.
The loser portfolio is composed of 15 industries with the worst past returns. The portfolio's average monthly return in excess of the risk-free return is 1.26 percent, while its standard deviation of monthly excess returns is 8.7 percent. The monthly Sharpe ratio is 0.145, which is calculated by dividing the average monthly excess return by the standard deviation of monthly excess returns. The annualized Sharpe ratio is 0.5, which is the monthly Sharpe ratio multiplied by the square root of 12. The annualized Sharpe ratio of the overall market index is 0.54.
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Find the difference of 13a2b and -5a2b
Answer:
[tex]8a^2b[/tex]-------------------------------
Simplify in steps:
[tex]13a^2b + ( -5a^2b)=[/tex] factor out a²b[tex](13-5)a^2b=[/tex] simplify[tex]8a^2b[/tex] answerIdentify a CSS3 2D transformation function that resizes an object by a factor of x horizontally.
a. scaleY(y)
b. rotate(angleY)
c. translateY(offY)
d. skewY(angleY)
The correct answer is not listed among the given options. None of the listed options is a CSS3 2D transformation function that resizes an object by a factor of x horizontally.
Here are brief explanations of the given options:
a. scaleY(y) - This function scales an object vertically by a factor of y.
b. rotate(angleY) - This function rotates an object around the y-axis by the specified angle.
c. translateY(offY) - This function translates an object vertically by the specified offset.
d. skewY(angleY) - This function skews an object along the y-axis by the specified angle.
To resize an object horizontally by a factor of x, you can use the scaleX(x) function. This function scales an object horizontally by a factor of x.
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Write as a decimal, 45 + 3/10 + 8/1000 =?
To write 45 + 3/10 + 8/1000 as a decimal, we need to convert the fractions 3/10 and 8/1000 to their equivalent decimal form and then add all three numbers. The result is 45.308, which can be simplified to 45.31 by rounding to the nearest hundredth.
Explanation:
To convert 3/10 to a decimal, we divide 3 by 10, which gives 0.3. To convert 8/1000 to a decimal, we divide 8 by 1000, which gives 0.008. We can then add 45, 0.3, and 0.008 to get:
45 + 0.3 + 0.008 = 45.308
To simplify this result to the nearest hundredth, we look at the digit in the third decimal place (8) and round the digit in the second decimal place (0) up to 1 if the third decimal place is 5 or greater. In this case, the third decimal place is 8, which is greater than 5, so we round up to get:
45.31
Therefore, 45 + 3/10 + 8/1000 is equal to 45.31 when written as a decimal.
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I have no clue of how to solve this question below.
The volume of the cylinder is 36.8 cm³
We have,
The diameter of the cylinder = 2.5 cm
The radius of the cylinder = 2.5 / 2 = 1.25 cm
The height of the cylinder.
= 2.5 + 2.5 + 2.5
= 7.5 cm
Now,
The volume of the cylinder.
= πr²h
= 3.14 x 1.25 x 1.25 x 7.5
= 36.8 cm³
Thus,
The volume of the cylinder is 36.8 cm³
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You have a $250 gift card to use from a sporting goods
catalogue. (See price list to the left.) You will order a
pair of running shoes and several pairs of socks.
Create and solve an inequality to show the possible
number of socks you could order by only using the gift
card.
Answer:
The answer cannot be given as exact prices are not listed. How to do it could be explained as below:
Step-by-step explanation:
The first thing you have to do is find the price of the shoes. Then you take $250 (the amount of money in the gift card) and subtract it from the price of the shoes.
Then, we take the number we got from above and divide it by how much 1 pair of socks costs. You could get a decimal, and if you do, pretend that the numbers after the decimal don't exist. This number is the number of possible socks you could order only using the gift card.
Message:
Hope this helped! <3
PLSSS HELP IF YOU TURLY KNOW THISSS
Answer:
0.8
Step-by-step explanation:
In order to find its decimal form, we first need to divide the fraction.
[tex]4\div 5=0.8[/tex]
In decimal form, 4/5 = 0.8. The number is already rounded to the nearest tenth.
Michael compared the volumes of two cylinders.
Cylinder #1 has a radius of 5 cm and height of 18 cm.
Cylinder #2 has the same radius as cylinder #1 but has a height of 20 cm.
About how much greater is the volume of cylinder #2 than cylinder #1?
SHOW WORKK
A. 2 cm3
B. 31 cm3
C. 63 cm3
D. 157 cm3
The volume of Cylinder #2 is about 157 cm³ greater than the volume of Cylinder.#1 The correct answer is D. 157 cm³.
To compare the volumes of the two cylinders, we will use the formula for the volume of a cylinder, which is V = πr²h, where V is the volume, r is the radius, and h is the height.
Cylinder #1:
Radius (r1) = 5 cm
Height (h1) = 18 cm
Volume of Cylinder #1 (V1) = π × r1² × h1 = π × 5² × 18 = π × 25 × 18 = 450π cm³
Cylinder #2:
Radius (r2) = 5 cm (same as Cylinder #1)
Height (h2) = 20 cm
Volume of Cylinder #2 (V2) = π × r2² × h2 = π × 5² × 20 = π × 25 × 20 = 500π cm³
Now, we will find the difference in volumes:
Difference = V2 - V1 = 500π cm³ - 450π cm³ = 50π cm³ ≈ 157 cm³
So, the volume of Cylinder #2 is about 157 cm³ greater than the volume of Cylinder #1. The correct answer is D. 157 cm³.
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What is the area, in square centimeters, of the shape below?
3-5 cm;
6.2 cm
Answer:
Area = 10.85 square centimeters
Step-by-step explanation:
The formula for area of triangle is
A = 1/2bh, where
A is the area in square units,b is the base,and h is the heightWe see from the diagram that the base is 6.2 cm and the height is 3.5 cm. Thus, we can plug these numbers in for b and h in the base formula to find the area, A:
A = 1/2(6.2)(3.5)
A = 1/2(21.70)
A = 10.85 square centimeters
help plsss right away!!!!
For column A:
P(male | snickers) = A. 23/41P(M&M peanut ❘ female) = C. 5/46P(female | Reese's) = D. 16/37P(M&M plain | male) = G. 11/113How to determine probability?P(male | snickers) = number of males who like Snickers / total number of people who like Snickers = 230/410 = 23/41
P(M&M peanut | female) = number of females who like M&M peanuts / total number of females = 50/460 = 5/46
P(female | Reese's) = number of females who like Reese's / total number of people who like Reese's = 160/370 = 16/37
P(M&M plain | male) = number of males who like M&M plain / total number of males = 55/565 = 11/113
Therefore, the answers are:
A. 23/41
B. 5/46
C. 16/37
D. 11/113
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Help me with this please
A common formula/theorem when working with right triangles is called the Pythagorean Theorem.
Pythagorean Theorem: a^2 + b^2 = c^2
---a and b are legs of the triangle
---c is the hypotenuse
8^2 + 6^2 = c^2
64 + 36 = c^2
100 = c^2
c = 10
Answer: The length of the hypotenuse of the triangle is 10cm.
Hope this helps!
Help me please it’s due tonight
The angle of depression that each chain makes with the ceiling are approximately 67° and 56°.
How to determine angle of depression?To solve the problem, use trigonometry. Let's call the angle of depression that the first chain makes with the ceiling x, and the angle of depression that the second chain makes with the ceiling y. Then:
In triangle ABC, where A is one of the hooks, B is the other hook, and C is the point where the chains meet:
AC = 1.9 m
BC = 2.2 m
angle BAC = 86°
Find angle BCA, which is the angle of depression that chain AC makes with the ceiling. Use the law of sines to find this angle:
sin BCA / AC = sin BAC / BC
sin BCA = AC sin BAC / BC
sin BCA = 1.9 sin 86° / 2.2
sin BCA ≈ 0.925
BCA ≈ 67.3°
So the angle of depression that chain AC makes with the ceiling is approximately 67 degrees.
Similarly, find the angle of depression that chain BD makes with the ceiling by considering triangle ABD:
AD = 2.8 m
BD = 2.2 m
angle ADB = 86°
Using the law of sines:
sin ADB / BD = sin BAD / AD
sin ADB = BD sin BAD / AD
sin ADB = 2.2 sin 86° / 2.8
sin ADB ≈ 0.836
ADB ≈ 56.4°
So the angle of depression that chain BD makes with the ceiling is approximately 56 degrees.
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Rank the following in order from most precise to least precise.
15.46 seconds
980 meters
900 miles
8.431 grams
The order from utmost precise to least precise is
8.431 grams, 15.46 seconds, 980 meters, 900 miles.
Ranking the following in order from utmost precise to least precise
8.431 grams ( utmost precise) This dimension has the loftiest position of perfection as it includes three decimal places.
15.46 seconds - This dimension has two decimal places, indicating a advanced position of perfection compared to whole figures.
980 meters measures This dimension is a whole number and lacks decimal places, making it less precise than measures with decimal values.
900 long hauls( Least precise) This dimension is also a whole number and lacks decimal places, making it the least precise among the given options.
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Find the are n circumference of each circle above
The area and circumference of the circles are solved
Given data ,
Let the area and circumference be represented as A and C
Now , the circles are
Circumference of circle = 2πr
Area of the circle = πr²
a)
Radius = 7 m
C = 2 ( π ) ( 7 )
C = 43.98 m
A = π ( 7 )²
C = 153.938 m²
b)
Diameter = 30 feet
C = 2 ( π ) ( 15 )
C = 94.24 feet
A = π ( 15 )²
C = 706.858 feet²
c)
Radius = 10.2 inches
C = 2 ( π ) ( 10.2 )
C = 64.088 inches
A = π ( 10.2 )²
C = 326.85 inches²
d)
Diameter = 9 mm
C = 2 ( π ) ( 4.5 )
C = 28.274 mm
A = π ( 4.5 )²
C = 63.617 mm²
Hence , the circles are solved
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Onitsha is 450km due south of Kafanchan. Ibadan is due west of Onitsha and on a bearing 225° from Kafanchan. Find the distance between: (1) Ibadan and Onitsha (2) Ibadan and Kafanchan
The distance between Ibadan and Onitsha is 450km
The distance between Ibadan and Kafanchan is 636. 4km
How to determine the valueTo determine the distance, we have that;
The distance of Onitsha from Kafanchan is 450km
The distance between Ibadan and Onitsha is x
The distance between Ibadan and Kafanchan is y
Note that the third quadrant is 270 degrees
Then, the value of the angle = 270 - 225 = 45 degrees
Then, using the tangent identity, we have that;
tan 45 = x/450
cross multiply the values
x = 450km
Also, using the sine identity
sin 45 = 450/y
cross multiply the values
y = 636. 4 km
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Find the length of a rectangle that has a width of 3.9 cm and an area of 25.311 cm².
Answer:
Length = 6.49 cm
Step-by-step explanation:
The formula for area of a rectangle is
A = lw, where
A is the area in units squared,l is the length,and w is the widthSince we're already given the area and width and want to find the length, we can first rewrite the area formula in terms of l:
A/w = l
Now, we can plug in 25.311 for A and 3.9 for w to solve for l, the length:
25.311 / 3.9 = l
6.49 cm = l
We can check that 6.49 is the correct length by plugging everything into the regular area formula and checking that we get 25.311:
25.311 = 6.49 * 3.9
25.311 = 25.311
you first roll the standard six-sided die once, and then you draw as many cards (from the standard deck of cards) as the number you rolled. so for instance: if you roll 4 you draw 4 cards for the deck. what is the probability that among the cards you draw there will be (a) exactly 3 aces, exactly 2 queens, and exactly 1 king?
Therefore, the probability of drawing exactly 3 aces, 2 queens, and 1 king is approximately 0.000682.
We can solve this problem using the multiplication rule for independent events. The probability of drawing a specific card from a standard deck is 1/52, since there are 52 cards in the deck and each is equally likely to be drawn. We can use this probability to find the probability of drawing a specific combination of cards.
(a) To find the probability of drawing exactly 3 aces, 2 queens, and 1 king, we can break it down into three steps:
Find the probability of drawing exactly 3 aces: There are 4 aces in the deck, so the probability of drawing an ace on the first draw is 4/52. Since we need exactly 3 aces, the probability of drawing 3 aces and 3 non-aces (out of the remaining 48 cards) is given by the binomial probability formula:
P(3 aces) = (4/52)^3 * (48/52)^3 * C(6,3)
where C(6,3) is the number of ways to choose 3 cards out of 6. Using a calculator, we get:
P(3 aces) = 0.0080
Find the probability of drawing exactly 2 queens: There are 4 queens in the deck, so the probability of drawing a queen on the first draw is 4/52. Since we need exactly 2 queens, the probability of drawing 2 queens and 4 non-queens (out of the remaining 48 cards) is given by:
P(2 queens) = (4/52)^2 * (48/52)^4 * C(6,2)
where C(6,2) is the number of ways to choose 2 cards out of 6. Using a calculator, we get:
P(2 queens) = 0.2123
Find the probability of drawing exactly 1 king: There are 4 kings in the deck, so the probability of drawing a king on the first draw is 4/52. Since we need exactly 1 king, the probability of drawing 1 king and 5 non-kings (out of the remaining 48 cards) is given by:
P(1 king) = (4/52)^1 * (48/52)^5 * C(6,1)
where C(6,1) is the number of ways to choose 1 card out of 6. Using a calculator, we get:
P(1 king) = 0.4017
Now we can use the multiplication rule to find the probability of drawing exactly 3 aces, 2 queens, and 1 king:
P(exactly 3 aces, 2 queens, 1 king) = P(3 aces) * P(2 queens) * P(1 king)
= 0.0080 * 0.2123 * 0.4017
= 0.000682
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In a game of DND, Evy rolls a 20 sided die one time. What is the probability that she rolls an odd number, or a number less than 10? Round to the nearest tenth
The probability that she rolls an odd number, or a number less than 10 is 0.7
Calculating the probability that she rolls an odd number, or a number less than 10?From the question, we have the following parameters that can be used in our computation:
Die = 20-sided
In the 20-sided die, we have
A = Odd numbers = 10
B = Numbers less than 10 = 9
A and B = Odd numbers less than 10 = 5
So, we have
P(A) = 10/20
P(B) = 9/20
P(A and B) = 5/20
The probability expression P(A or B) can be calculated using
P(A or B) = P(A) + P(B) - P(A and B)
When the given values are substituted in the above equation, we have the following equation
P(A or B) = 10/20 + 9/20 - 5/20
Evaluate
P(A or B) = 0.7
Hence, the value of the probability P(A or B) is 0.7
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heights of college women have a distribution that can be approximated by a normal curve with a mean of 65 inches and a standard deviation equal to 3 inches. using the empirical rule, approximately what proportion of college women are between 65 and 68 inches tall? give your response to two decimal places.
Answer to two decimal places: 34.13%
Approximately 34.13% of college women are between 65 and 68 inches tall.
The empirical rule states that for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean, approximately 95% falls within two standard deviations of the mean, and approximately 99.7% falls within three standard deviations of the mean.
In this case, we are given that the mean height of college women is 65 inches and the standard deviation is 3 inches.
z = (x - μ) / σ
z = (65 - 65) / 3
z = 0
To find the z-score for a height of 68 inches:
z = (x - μ) / σ
z = (68 - 65) / 3
z = 1
Using the standard normal distribution table, we can find that the area between z = 0 and z = 1 is approximately 0.3413.
The, approximately 34.13% of college women are between 65 and 68 inches tall.
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PLEASE HELP ME WITH THIS QUESTION PLEASEE
reflect in the line with equation y = x
The coordinates of the quadrilateral after a reflection over the line with equation y = x are:
Ordered pair (1, -3).
Ordered pair (2, -4).
Ordered pair (5, -5).
Ordered pair (5, -3).
What is a reflection across the x-axis?In Mathematics, a reflection across the x-axis would maintain the same x-coordinate while the sign of the y-coordinate changes from positive to negative.
Furthermore, a reflection across the line y = x would interchange (switch) the x-coordinate and y-coordinate and this is given by this transformation rule:
(x, y) → (y, x)
Ordered pair (-3, 1) → Ordered pair (1, -3).
Ordered pair (-4, 2) → Ordered pair (2, -4).
Ordered pair (-5, 5) → Ordered pair (5, -5).
Ordered pair (-3, 5) → Ordered pair (5, -3).
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Find the slope of the line on the graph. Write your answer as a fraction or a whole number, not a mixed number or decimal.
The slope of the given graph is determined as 1/3.
What is the slope of a graph?The slope of a line is a measure of its steepness of the graph. Mathematically, slope is calculated as rise over run or change in y divided by change in x.
The formula is given as;
slope = Δy / Δx
where;
Δy is the change in y valuesΔx is the change in x valuesThe slope of the given graph is calculated as follows;
choose the following coordinate points;
( x₁, y₁) = (-6, 0 )
( x₂, y₂) = ( 6 , 4 )
The slope = ( y₂ - y₁ ) / ( x₂ - x₁)
slope = ( 4 - 0 ) / ( 6 - - 6)
slope = ( 4 ) / ( 12)
slope = 1 / 3
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(Giving out brainliest) please help ASAP!
Answer:
The area of the right triangle is approximately 77.5 square yards.
Answer:
77.5 yards
Step-by-step explanation:
area of right-angled triangle = 0.5 x 7.75 X 20
= 10 X 7.75
=77.5 yards
A runner is using a nine-week training app to prepare for a "fun run." The table below represents the amount of the program completed, A, and the distance covered in a session, D, in miles.
A 49 59 69 89 1 D 2 2 2.25 3 3.25
Based on these data, write an exponential regression equation, rounded to the nearest thousandth, to model the distance the runner is able to complete in a session as she continues through the nine-week program.
17.5 miles is the runner training distance in the tenth week.
We have,
A sequence is an enumerated collection of objects in which repetitions are allowed and order matters.
Given,
The first week, she runs 4 miles during each training session
Each week, she increases her distance by 1.5 miles.
4,5.5,7,8.5....
The given sequence is a Arithmetic sequence, a is the first term and d is common difference
a=4,d=5.5
We need to find the distance in the tenth week.
n=10
aₙ=a+(n-1)d
a₁₀=4+(10-1)(1.5)
a₁₀=4+9(1.5)=4+13.5=17.5
Hence 17.5 is the runner training distance in the tenth week.
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complete question:
A runner is training for a marathon. The first week, she runs 4 miles during each training session. Each week, she increases her distance by 1.5 miles. Write a recursive definition for this sequence and use this definition to find her training distance in the tenth week.
a fair coin is tossed repeatedly. find the probability that a fair coin is flipped a multiple of three times before coming up heads.
The probability of getting TTH or THH is (1/2) * (1/2) * (1/2) = 1/8, as each toss is independent and has a probability of 1/2.
To find the probability that a fair coin is flipped a multiple of three times before coming up heads, we can consider the possible outcomes. Let's denote H as heads and T as tails.
The first toss can either be T or H with equal probabilities of 1/2 each. If it's H, the experiment ends. If it's T, we move to the second toss.
For the second toss, the possibilities are TH or TT. If it's TH, the experiment ends. If it's TT, we move to the third toss.
For the third toss, the possibilities are TTH, TTT, or THH. If it's TTH or THH, the experiment ends. If it's TTT, we move to the fourth toss.
Following this pattern, we can see that the experiment ends when we get TTH, THH, TTTTH, TTTTTTH, or any sequence of T's followed by H. These are the outcomes where the coin is flipped a multiple of three times before coming up heads.
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find A flat rectangular roof measures 7.5 m by 4 m; 12 mm of rain falls on the roof. a Find the volume of water on the roof. Express your answer in i cm' and ii m'. Find the mass of water that falls on the roof if 1 cm³ of water has a mass b of 1 gram. Express your answer in kilograms.
1. The volume of water on the roof in cm and m is
240000 and 0.24 respectively.
2. The mass of water that fell on the roof is 2400kg
What is volume?Volume is defined as the space occupied within the boundaries of an object in three-dimensional space. It is also the capacity of a container.
Volume = l× b × h
l = 7.5 m
b = 4m
h = 12mm = 0.012
volume = 5 × 4 × 0.012
= 0.24 m³
in centimeter,
= 0.24 × 100³
= 240,000 cm³
2. The density of water is 1g/cm³
1g = 0.01kg
= 0.01kg/cm³
density = mass/volume
mass = density × volume
= 0.01 × 240000
= 2400 kg
therefore the mass of water that fell on the roof is 2400kg
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Jose is going to use a random number generator
500
500500 times. Each time he uses it, he will get a
1
,
2
,
3
,
1,2,3,1, comma, 2, comma, 3, comma or
4
44. Complete the following statement with the best prediction. Jose will get something other than a
2
22
Jose will get something other than a 2. If Jose uses the random number generator 500 times, we can predict that he will get a result other than a 2 approximately 375 times (75% of 500).
It is highly likely that Jose will get something other than a 2 at least once during the 500500 times he uses the random number generator. This is because the generator produces 1, 2, 3, 1, comma, 2, comma, 3, comma, or 4 with equal probability, and there are 4 possible outcomes. Therefore, the probability of getting a 2 is only 1/4 or 25%. This means that there is a 75% chance of getting something other than a 2.
To further support this prediction, we can use the law of large numbers, which states that as the number of trials increases, the experimental probability of an event will converge to the theoretical probability. In this case, as Jose uses the random number generator more and more times, the percentage of times he gets a 2 should get closer and closer to 25%. Therefore, it is highly likely that Jose will get something other than a 2 at least once during the 500500 times he uses the generator.
In order to provide you with an accurate answer, let's rephrase the question with the relevant information:
Jose is going to use a random number generator 500 times. Each time he uses it, he will get a 1, 2, 3, or 4. Complete the following statement with the best prediction: Jose will get something other than a 2.
Since the random number generator can produce four possible outcomes (1, 2, 3, and 4), each outcome has a 25% chance of occurring.
Therefore, the probability of getting something other than a 2 is 75% (25% for each of the other three outcomes). If Jose uses the random number generator 500 times, we can predict that he will get a result other than a 2 approximately 375 times (75% of 500).
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