Answer: \((f-g)(x)=6x^2-2x-6\)
Step-by-step explanation:
\(f(x)=6x^2-4\\g(x)=2x+2\\(f-g)(x)=\)
Take each function and subtract them.
\((f-g)(x)=(6x^2-4)-(2x+2)\)
The trick here is that the negative sign changes all of the signs inside the parentheses.
\((f-g)(x)=6x^2-4-2x-2\)
Combine like terms;
\((f-g)(x)=6x^2-2x-6\)
the average number of shoppers at a particular grocery store in one day is 505, and the standard deviation is 115. the number of shoppers is normally distributed. for a random day, what is the probability that there are between 200 and 400 shoppers at the grocery store? the answer should be typed as a decimal with 4 decimal places.
This means that on a random day, there is a 16.78% chance that the number of shoppers at the grocery store will fall between 200 and 400.
Using the normal distribution formula, we can calculate the z-scores for 200 and 400 shoppers:
z(200) = (200 - 505) / 115 = -2.65
z(400) = (400 - 505) / 115 = -0.91
Next, we can use a standard normal distribution table or calculator to find the area between these two z-scores. The probability is:
P(-2.65 < z < -0.91) = 0.1678
Therefore, the probability that there are between 200 and 400 shoppers at the grocery store is 0.1678.
To calculate the probability that there are between 200 and 400 shoppers at the grocery store, we first need to determine the z-scores for those values. We can then use a standard normal distribution table or calculator to find the area between those two z-scores. The result is the probability of interest. In this case, the probability that there are between 200 and 400 shoppers at the grocery store is 0.1678.
The probability that there are between 200 and 400 shoppers at the grocery store is 0.1678. This means that on a random day, there is a 16.78% chance that the number of shoppers at the grocery store will fall between 200 and 400.
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Jane is making lunch for 12 people. she is serving hotdogs and plans on each person get eating two hotdogs. hotdog buns are sold in packages of eight. which expression can be used to find the number of packages she needs to buy?
He must purchase 3 packages of hot dogs and 2 packages of hot dog buns for a total of 24 hot dogs with buns if he doesn't want to have any leftover hot dogs or buns. You should be aware that students might respond with 24, which is the least common multiple of 8 and 12.
What are hot dog buns known as?The hot dog buns most frequently used in the American region of New England and its cuisine are New England-style hot dog buns, also referred to as New England hot dog buns or top-loading hot dog buns.
What does the slang term "hot dogs" mean?As you can see, "hot dog" is a versatile word that can be used as a noun, verb, adjective, or even as an exclamation.
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What is the relationship between the linear correlation coefficient r and the slope b, of a regression line? A. The value of r will always be larger than the value of b B. The value of r will always have the same sign as the value of b C. The value of r ill always have the opposite sign of the value of b. D. The value of r will always be smaller than the value of bq
The relationship between the linear correlation coefficient r and the slope b of a regression line is that the value of r will always have the same sign as the value of b. So, the correct option is B.
This means that if the slope is positive, indicating a positive relationship between the variables, the correlation coefficient will also be positive. Similarly, if the slope is negative, indicating a negative relationship between the variables, the correlation coefficient will also be negative. It is important to note that the magnitude of r and the magnitude of b may not necessarily be the same. Therefore, option B is the correct answer.
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Whats the condition make this equation is True : (∂U/∂V)T =(∂U/∂P)T =(∂H/∂V)T=0
The condition for the equation (∂U/∂V)T = (∂U/∂P)T = (∂H/∂V)T = 0 to be true is that the system described must be in a state of mechanical, thermal, and chemical equilibrium.
Let's break down the conditions for each partial derivative:
1. (∂U/∂V)T = 0: This condition implies that the internal energy of the system does not change with respect to volume at constant temperature.
It indicates mechanical equilibrium, where the system is in balance and no work is being done on or by the system due to volume changes.
2. (∂U/∂P)T = 0: This condition suggests that the internal energy of the system does not change with respect to pressure at constant temperature.
It indicates thermal equilibrium, where the system is in balance and there is no transfer of energy as heat due to pressure changes.
3. (∂H/∂V)T = 0: This condition implies that the enthalpy of the system does not change with respect to volume at constant temperature.
It also indicates mechanical equilibrium, where the system is in balance and there is no work being done on or by the system due to volume changes.
In summary, the condition (∂U/∂V)T = (∂U/∂P)T = (∂H/∂V)T = 0 is true when the system is in a state of mechanical, thermal, and chemical equilibrium, where there are no changes in internal energy, pressure, and enthalpy with respect to volume at constant temperature.
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4s4 17s2 14s 2 = (2s3 3s2-4s 1)(x)
The required difference of the polynomial functions is -9s^2 + 4s - 2
Given the following difference of polynomial expressed as:
(–6s2 + 12s – 8) – (3s2 + 8s – 6)
We are to find the difference
(–6s2 + 12s – 8) – (3s2 + 8s – 6)
Expand
–6s^2 + 12s – 8 - 3s^2 - 8s + 6
Collect the like terms
–6s^2- 3s^2 + 12s - 8s - 8 + 6
-9s^2 + 4s - 2
Hence the required difference of the polynomial functions is -9s^2 + 4s - 2
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complete question
Find each difference.
(–6s2 + 12s – 8) – (3s2 + 8s – 6) =
–9s2 + 4s – 14
–9s2 + 4s – 2
–9s2 + 20s – 14
–9s2 + 20s – 2
the lengths of songs on the radio are normally distributed with a mean length of 210 seconds. if 38.2% of all songs have lengths between 194 and 226 seconds, then the standard deviation of this distribution is
Answer:
Step-by-step explanation:
A die is rolled three times and a curious pattern emerges. On the first roll, the number is greater than 3. On the second roll, the under is greater than 4, and on the third roll, the number is greater than 5. If all three rolls are independent, what is the probability that this occurs?
Therefore, the probability of the curious pattern occurring is 1/36.
What is probability?Probability theory is an important branch of mathematics that is used to model and analyze random phenomena, such as the outcomes of games of chance, the behavior of particles in physics, or the performance of complex systems in engineering. It has many practical applications in fields such as statistics, finance, economics, and computer science.
Here,
The probability of rolling a number greater than 3 on a fair die is 3/6 = 1/2, since there are three numbers (4, 5, 6) that satisfy this condition out of the six possible outcomes.
Similarly, the probability of rolling a number greater than 4 on a fair die is 2/6 = 1/3, and the probability of rolling a number greater than 5 is 1/6.
Since each roll is independent, we can multiply these probabilities together to get the probability that all three conditions are satisfied:
P = (1/2) × (1/3) × (1/6)
= 1/36
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A triangular prism is 18 meters long and has a triangular face with a base of 12 meters and a height of 8 meters. The other two sides of the triangle are each 10 meters. What is the surface area of the triangular prism?
Answer:
Step-by-step explanation:
To find the surface area of a triangular prism, we need to add up the area of all of its faces.
First, let's calculate the area of the triangular face. The area of a triangle is given by the formula:
A = 1/2 * base * height
Plugging in the values given in the problem, we get:
A = 1/2 * 12 * 8
A = 48
So the area of the triangular face is 48 square meters.
The triangular prism has two of these faces, so the total area of the triangular faces is:
2 * 48 = 96
Next, we need to calculate the area of the rectangular faces. The rectangular faces have the same width as the base of the triangular face (12 meters), and the same height as the length of the prism (18 meters). So the area of each rectangular face is:
A = length * width
A = 18 * 12
A = 216
The triangular prism has two rectangular faces, so the total area of the rectangular faces is:
2 * 216 = 432
Finally, we add up the areas of all the faces to get the total surface area of the triangular prism:
96 + 432 = 528
Therefore, the surface area of the triangular prism is 528 square meters.
Could someone help me on this
Answer:
13.) 314.2 in²
15.) 181.5 ft²
Step-by-step explanation:
The area of a circle is found using the equation:
A = πr²
In this equation, "π" represents the number pi (3.14....) and "r" represents the radius (half the diameter).
For 13.), you have been given the radius. Thus, you can substitute it into the equation and solve for "A".
A = πr²
A = π(10)²
A = π x (100)
A = 314.2 in²
For 15.), you have been given the diameter. To find the radius, you need to divide this value by 2. Once you find the radius, you can plug it into the equation and simplify like above.
diameter = 15.2 ft
radius = 7.6 ft
A = πr²
A = π(7.6)²
A = π x (57.76)
A = 181.5 ft²
Pls help me with this answer
Is 1.875 a terminating decimal
Answer:
Because they are fractions, any rational number can also be expressed in decimal form. Any rational number can be represented as either: a terminating decimal: 158=1.875 15 8 = 1.875 , or. a repeating decimal: 411=0.36363636⋯=0.
Step-by-step explanation:
Terminating decimals are those numbers which come to an end after few repetitions after decimal point. Example: 0.5, 2.456, 123.456, etc. are all examples of terminating decimals.
I tried my best on explaining, sorry if it didn't help.
pls solve this question!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
The value of the given sine function is √3/2, so the correct option is 2nd.
Given that an function Sin (-5π/3) we need to evaluate the expression,
To evaluate the trigonometric function sine of the angle (-5π/3), we can use the periodicity of the sine function.
Since the sine function has a period of 2, the sine of any given angle is equal to the sine of that angle plus or minus any multiple of 2.
To find an equal angle inside the main range (between -π and π), we can add 2 to the angle (-5/3).
Once adding 2:
(-5π/3) + 2π = (-5π/3) + (6π/3) = π/3
Now we can evaluate the sine of π/3, which is a commonly known angle. The sine of π/3 is √3/2.
Therefore, sin(-5π/3) = sin(π/3) = √3/2.
Hence the correct option is √3/2
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3. the chattanooga choo choo provides services for 4,500 tourists in a 30-day (month) period. the next month they provide services for 6355 tourists in a 31-day (month) period. what is the daily percent of increase in tourists from one month to the next? round to the nearest tenth of a percent.
The daily percent of increase in tourists from one month to the next is approximately 5.4% which is obtained through mathematical operations.
To calculate the daily percent of increase, we need to determine the difference in the number of tourists between the two months and divide it by the number of days in the second month. Then, we express this difference as a percentage.
In the given scenario, the increase in tourists from the first month to the second month is 6355 - 4500 = 1855. The number of days in the second month is 31. Dividing the increase by the number of days gives us
1855 / 31 = 59.8387.
To express this increase as a percentage, we multiply the result by 100, yielding 5983.87%. Rounding this to the nearest tenth of a percent gives us approximately 5983.9%.
Finally, to find the daily percent of increase, we divide the percentage by the number of days in the second month: 5983.9% / 31 = 5.4%.
Therefore, the daily percent of increase in tourists from one month to the next is approximately 5.4%.
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Drag the tiles to the boxes to form correct pairs.Match the palrs of equivalent expressions.(-14 +30)–(1+36)46+13(5+26)+(26+)86-15(56–3)–(8+66)16–11(-10+6)+(76–5)– 15 - 26
Kindly check below.
1) Examining the expressions inside the tiles, we can tell that:
\(\begin{gathered} (-14+\frac{3}{2}b)-(1+\frac{8}{2}b)=-\frac{5}{2}b-15 \\ 4b+\frac{13}{2} \\ (5+2b)+(2b+\frac{3}{2})=4b+\frac{13}{2} \\ 8b-15 \\ (\frac{7}{2}b-3)-(8+6b)=\frac{7}{2}b-3-8-6b\rightarrow-11-\frac{5}{2}b \\ -\frac{5}{2}b-11 \\ (-10+b)+(7b-5)=8b-15 \\ -15-\frac{5}{2}b \end{gathered}\)2) Based on this we can tell the following relationship of equivalence:
A soccer player stands in the south east corner of a 72 yard x 65 yard field and kick the soccer ball All the way to a player in the opposite corner that player kicks the ball down the length of the field to a player in the southwest corner finally the player in the south west corner returns the ball back to the original player how far has the ball traveled
Answer:
Using the Pythagorean Theorem:
distance^2 = 72^2 + 65^2
distance^2 = 5,184 + 4,225
distance^2 = 9,409
distance = 97 yards
"round-trip" distance = 97 * 2 = 194 yards
Step-by-step explanation:
Which expression has a value of 13?
(20 ÷ 4) − 4 + 3 x 2
(18 ÷ 2) + 6 ÷ 6 + 3
(16 ÷ 4) + 3 x 4 − 1
(10 ÷ 2) − 3 + 4 x 2
The expression that has a value of 13 is (18 ÷ 2) + 6 ÷ 6 + 3
The PEMDAS rule
In order to calculate the expression, we need to use the PEMDAS rule which states:
P is parenthesisE is exponentM is multiplicationD is DivisionA AdditionS is subtractionFrom the question, we are to get the expression equal to 13.
From the given expression,(18 ÷ 2) + 6 ÷ 6 + 3 is equivalent to 13;
(18 ÷ 2) + 6 ÷ 6 + 3
9 + 6 ÷ 6 + 3
9 + 1 + 3
13
Hence the expression that has a value of 13 is (18 ÷ 2) + 6 ÷ 6 + 3
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The Martinez family picked 3-4 lb of apples. Ana picked 1 of those apples.
How many pounds of apples did Ana pick
help i’m literally taking the test rn on here looking for the answer
Question
Simplify for a = 3, b = -4 and c = -1.
5abcb that’s a fraction btw the last b is on the bottom
Answer:
-15
Step-by-step explanation:
(5*a*b*c) / (b) => (5*3*-4*-1) / (-4)
=> (60) / (-4)
=> -15
what is the correlation
Answer: moderate, C, B
Step-by-step explanation:
A) A shows a moderate negative correlation. It is moderate because the scattered points are sort of close to the line so it has moderate/medium correlation. It is also negative because it has a negative slope
B) C shows the strongest correlation because the points around the line are tight and close.
C) B should not have been drawn. The correlation is very weak. You do know where the line should be because the points are all over the place.
If x represents a number, does 2/5 times x always represent 40% of that number?
Answer:
Yes, it always represent 40% of that number.
Step-by-step explanation:
PLEASE HELP!!
Let f(x) = 8(3)^x The graph is stretched vertically by a factor of 3 to form the graph g(x). Choose the equation of g(x)
Answers:
a: g(x)=8(9)^x
b: g(x)=3(3)^x
c: g(x)=24(3)^x
d: g(x)=11(3)^x
The equation of g(x) is 24 (3)ˣ when the graph is stretched vertically by a factor of 3 to form the graph g(x).
What is function?
A formula, rule, or legislation that specifies how one variable (the independent variable) and another variable are related (the dependent variable).In contrast to the function f (x), the function g (x) is referred to as an inner function. The function g is the inner function of the outer function f, thus we can also interpret f [g (x)] in this way.For the parent function f(x) and a constant k >0,
then, the function given by
g(x) = kf(x) can be sketched by vertically stretching f(x) by a factor of k if k>1 (or)
if 0 < k < 1 , then it is vertically shrinking f(x) by a factor of k
As per the given statement that the graph of f(x) is stretched vertically by a factor of 3 i.e
k = 3 >1
so, by definition
g(x) = 3 f(x) = 3 . 8(3)ˣ
= 8(3)ˣ⁺¹
= 24 (3)ˣ
Hence, the equation of g(x) is 24 (3)ˣ when the graph is stretched vertically by a factor of 3 to form the graph g(x).
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answers r
268
201
151
67
67in³
Answer:
we have
volume of sphere =4/3 πr³=1/3×π×4³=67.02=67in³ is your answer.
the jar contains 22 marbles 12 purple 8 red and 2 green one marbles drawn and put back then a 2nd marble is drawn, what is the probability that both marbles were red?
Explanation:
There are 8 red marbles out of 22 total
8/22 = 4/11 is the probablity of randomly selecting red.
If the first marble is put back, then that probability will not change.
The probability of two red marbles in a row is (4/11)*(4/11) = 16/121
Side note: 16/121 = 0.1322 = 13.22% approximately
If 40% of the students in the class are boys, and if there are 15 girls in the class, then how many students are in the class? * 1 point
Answer:
25
Step-by-step explanation:
15/6.0=2.5
2.5x4=10
2.5x6=15
10+15=25
10 boys and 15 girls
Answer:
25
Step-by-step explanation:
Let's set up "x" as the total number of students. So now we can set up an equation:
40%x+15=x rewritten as:
.4x+15=x Subtract .4x from both sides will give us:
15=.6x Now divide each side by .6 to be:
25=x Therefore we know there are 25 students in the class.
Make sense?
find the mean median mode and range. 8, 10, 15, 17, 17, 22
Answer:
mean: 14.833 or 14.8
median: 16
mode: 17
range: 14
professor salton's research is about the relationship between work and study among college students. in his survey, he asked respondents to report how many hours they work for a non-academic job. professor salton's measure for work is:
Professor Salton's measure for work is the number of hours worked for a non-academic job, as reported by respondents in his survey.
This measure is a simple but effective way to gain an understanding of how work can impact a student's academic studies. It provides a direct measure of the amount of time that students spend working outside their academic pursuits, and can be used to quantify the potential effects of working on their educational success.
By taking this measure, Professor Salton has provided an effective way of analyzing the relationship between work and study. It allows researchers to determine whether working has an impact on student performance and academic outcomes. It also allows researchers to investigate whether certain types of work, such as part-time or full-time employment, have more of an impact than others.
Ultimately, this measure is an invaluable tool for researchers to gain a better understanding of the effects of work on student success.
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The jug can hold 1500ml. The bucket can hold 2 litres. The barrel can hold 15 litres. Anisa wants to fill the barrel with water. Find 2 ways that Anisa can fill the barrel using the jug and bucket
Answer:
1. Using the jug 6 times and the bucket 3 times
2. Using the bucket 6 times, then using the jug two times
Step-by-step explanation:
Firstly, let’s remember that 1000 ml = 1l
Thus 2L = 2000 ml
And 15L = 15,000 ml
So the situation we are having now is that we want to fill a barrel of 15,000 ml using a jug of 1500 ml and a bucket with a capacity of 2000 ml
Firstly, the first way is using the bucket 6 times and the jug 2 times
What i mean by this is using the bucket 6 times bringing the total volume from the bucket as (6* 2000) = 12,000 ml
Then we are left with 15,000-12,000 = 3,000 ml
Now, she can fill the barrel with 2 times the full volume of the jug making 3,000
Secondly, she can also use the combination of both.
She can use the bucket 6 times and the jug 2 times
The total volume in each case here would be;
For the bucket; (2,000 * 6) = 12,000 ml
while for the jug, we have (1500 * 2) = 3,000 ml
And thus we shall be having a total of 12,000 + 3,000 = 15,000 ml this way
a right rectangular prism 3 in by 4.25 in by 18.25 in what is the total surface area of the prism
The total surface area of the prism will be 290.125 Square units.
What is a surface area of a rectangular prism?The surface area of a rectangular prism is the measure of how much-exposed area a prism has. Surface area is expressed in square units.
The surface area of a rectangular prism is given by:
SA = 2 (lh +wh + lw )
where
l = 3
w = 4.25
h = 18.25
SA = 2 (3x18.25 + 4.25x18.25 + 3x4.25)
SA = 2 (54.75 + 77.5625 + 12.75)
SA = 2 (146.0625)
SA = 290.125 square units
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Find an equation of the sphere that passes through the point (4 3 -1) and has center (3 8 1)
The equation of the sphere that passes through the point (4, 3, -1) and has a center at (3, 8, 1) is: (x - 3)^2 + (y - 8)^2 + (z - 1)^2 = 30.
To find the equation of the sphere passing through the point (4, 3, -1) with a center at (3, 8, 1), we can use the general equation of a sphere:
(x - h)^2 + (y - k)^2 + (z - l)^2 = r^2
where (h, k, l) represents the center of the sphere and r represents the radius.
First, we need to find the radius. The distance between the center and the given point can be calculated using the distance formula:
√[(x2 - x1)^2 + (y2 - y1)^2 + (z2 - z1)^2]
Substituting the coordinates of the center (3, 8, 1) and the given point (4, 3, -1), we have:
√[(4 - 3)^2 + (3 - 8)^2 + (-1 - 1)^2]
Simplifying, we get:
√[1 + 25 + 4] = √30
Therefore, the radius of the sphere is √30.
Now we can substitute the center (3, 8, 1) and the radius √30 into the general equation:
(x - 3)^2 + (y - 8)^2 + (z - 1)^2 = 30
So, the equation of the sphere that passes through the point (4, 3, -1) and has a center at (3, 8, 1) is:
(x - 3)^2 + (y - 8)^2 + (z - 1)^2 = 30.
This equation represents all the points on the sphere's surface.
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can i have help with this
Answer:
6^a+v
Step-by-step explanation:
a^m * a^n = a^(m+n)
so, 6^a * 6^v = 6^a+v
Answer:
\( {6}^{a+v} \)
Step-by-step explanation:
We want to find the value of
\({6}^{a} \times 6 ^{v} \)
We can do so by using basic exponent laws.
Multiplying exponents with the same base law:
(note that the base is the number under the exponent, in this case both bases have a value of 6 so we use this law)
\(a ^{m} \times {a}^{n} = {a}^{m+n} \)
Explanation of law : We simply keep the bases the same and add the exponents.
Applying this law to 6^a * 6^v
We acquire
6^a * 6^v
==> keep the bases the same and add the exponents
6^a+v