Answer:
pq
Step-by-step explanation:
STT 1.3 Sarah starts at a positive position along the x-axis. She then undergoes a negative displacement. Her final position
A is postive
B Is negative
C Could be either positive or negative
Sarah's final position would be negative. Therefore, option B is the correct answer.
Given that, Sarah starts at a positive position along the x-axis. She then undergoes a negative displacement.
A negative displacement means that Sarah has moved backward along the x-axis, so her final position would be negative.
Therefore, option B is the correct answer.
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Which of the following numbers is rational?
OA) 7.885
OB) IT
OC) 0.144
OD 91
Write an equation for the line described in standard form. through (0,3) slope = 3
Answer:
y = 3x + 3
Step-by-step explanation:
y = 3x + b
3 = 3(0) + b
3 = 0 + b
3 = b
W dose x equal. Plz help fast
Answer:
You need to solve X first, then answer __x - 10 so example x=7 so 74 - 10 is 64. SO that would be 64 degrees.
PLEASE I NEED THIS QUICK!!!!!
Susan wants to make pumpkin bread and zucchini bread for the school bake sale. She has 15 eggs and 16 cups of flour in her pantry. Her recipe for one loaf of pumpkin bread uses 2 eggs and 3 cups of flour. Her recipe for one loaf of zucchini bread uses 3 eggs and 4 cups of flour. She plans to sell pumpkin bread loaves for $5 each and zucchini bread loaves for $4 each. Susan wants to maximize the money raised at the bake sale. Let x represent the number of loaves of pumpkin bread and y represent the number of loaves of zucchini bread Susan bakes.
What is the objective function for the problem?
P = 15x + 16y
P = 5x + 7y
P = 5x + 4y
P = 4x + 5y
The endpoints of LF¯¯¯¯¯¯¯ are L(-2, 3) and F(3, 1). The endpoints of JR¯¯¯¯¯¯¯ are J(1, -1) and R(2, -3). What is the approximate difference in the lengths of the two segments?
The approximate difference in the lengths of the two segments is given as follows:
3.2 units.
How to obtain the distance between two points?The coordinates of the points have the following format:
\((x_1, y_1)\) and \((x_2,y_2)\)
Hence the distance is given as follows:
\(D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)
The length of a segment is given by the distance between it's two endpoints.
Hence the length of segment LF is given as follows:
\(D_{LF} = \sqrt{(3 - (-2))^2+(1 - 3)^2}\)
\(D_{LF} = \sqrt{29}\)
\(D_{LF} = 5.4\)
The length of segment JR is given as follows:
\(D_{JR} = \sqrt{(-3 - (-1))^2+(2 - 1)^2}\)
\(D_{JR} = \sqrt{5}\)
\(D_{JR} = 2.2\)
Hence the distance is of:
5.4 - 2.2 = 3.2 units.
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If there are 460 pounds for every 4 pellets how many pounds are for 16 pellets.
Answer:
1840
Step-by-step explanation:
4 pellets x 4 = 16 pellets
460 pounds x 4 = 1840 pounds
Answer:
1840 pounds for 16 pellets
Step-by-step explanation:
-1 + -3 is _ units form -1 in the _ direction
The complete statement is -1 + -3 is 3 units from -1 in the negative direction
How to complete the statement in the equation?The equation is given as:
-1 + -3
When the above equation is the sum of two negative numbers.
This can be rewritten as:
-1 - 3
This means that the result is -3 units from -1
This in other words mean that the result is 3 units from -3 in the negative direction
Hence, the complete statement is -1 + -3 is 3 units from -1 in the negative direction
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(b) Give the equation of a line which is parallel to line y=2x and
passes through (0,3).
All lines parallel to y=2x-3 will have the same slope as y=2x-3. So how do you find the slope of y=2x-3? Very simple! When written in slope-intercept form you simply look at the coefficient of the ‘x’ term. In this instance the coefficient is 2. Therefore any equation that has a slope of 2 will be parallel to y=2x-3. In general we can say that the family of equations parallel to y=2x-3 is y=2x+b where b is the y-intercept.
what is 1000/2000? I really need help please.
1000/2000 will be 0.5 :)
\(\\ \sf\longmapsto \dfrac{1000}{2000}\)
\(\\ \sf\longmapsto \dfrac{100}{200}\)
\(\\ \sf\longmapsto \dfrac{10}{20}\)
\(\\ \sf\longmapsto \dfrac{1}{2}\)
\(\\ \sf\longmapsto 0.5\)
if you bought 845.67 mL of dish soap and have already used 242.36 mL, how much do u have left
Answer:
I believe you just subtract 845.67ml - 243.36 which is equal to 602.31
Step-by-step explanation:
d. the plant management believes that an increase in ambient temperature of 1 degree fahrenheit is associated with an increase in average monthly steam consumption of 10 thousand pounds. do the data support this statement? explain. (hint: perform a hypothesis test.)
Answer:
Step-by-step explanation:
d. the plant management believes that an increase in ambient temperature of 1 degree fahrenheit is associated with an increase in average monthly steam consumption of 10 thousand pounds. do the data support this statement? explain. (hint: perform a hypothesis test.)
I need help with this problem
Answer:
Sorry i really need points you can report me but i just want you to knw that I REALLY need points
In ΔVWX, w = 4.7 inches, v = 2.4 inches and ∠V=8°. Find all possible values of ∠W, to the nearest 10th of a degree.
The value of W to the nearest tenth of degree is 15.8°
What is sine rule?The sine rule states that if a, b and c are the lengths of the sides of a triangle, and A, B and C are the angles in the triangle; with A opposite a, etc., then a/sinA=b/sinB=c/sinC.
Sine rule can be used to find unknown side or angle In a triangle.
w/sinW = v/sinV
4.7/sinW = 2.4 / sin8
2.4sinW = 4.7 sin8
2.4sinW = 0.654
sinW = 0.654/2.4
sinW = 0.273
W = sin^-1( 0.273)
W = 15.8° ( nearest tenth)
therefore the value of W is 15.8°
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Consider a population with a known standard deviation of 27.5. In order to compute an interval estimate for the population mean, a sample of 69 observations is drawn. [You may find it useful to reference the z table.]
a. Is the condition that X−X− is normally distributed satisfied?
Yes
No
b. Compute the margin of error at a 99% confidence level. (Round intermediate calculations to at least 4 decimal places. Round "z" value to 3 decimal places and final answer to 2 decimal places.)
c. Compute the margin of error at a 99% confidence level based on a larger sample of 275 observations. (Round intermediate calculations to at least 4 decimal places. Round "z" value to 3 decimal places and final answer to 2 decimal places.)
d. Which of the two margins of error will lead to a wider confidence interval?
99% confidence with n = 69.
99% confidence with n = 275.
The margin of error at a 99% confidence level is 8.36.
The margin of error at a 99% confidence level based on a larger sample of 275 observations is 4.14.
a. Yes, the condition that X−X− is normally distributed is satisfied for a sample size of 69 by the central limit theorem.
b. The margin of error at a 99% confidence level can be computed using the formula:
Margin of error = z* (sigma / sqrt(n))
where z* is the z-score corresponding to a 99% confidence level, sigma is the known standard deviation, and n is the sample size.
The z-score for a 99% confidence level is 2.576 (from the z table).
Substituting the given values, we get:
Margin of error = 2.576 * (27.5 / sqrt(69)) = 8.36
c. The margin of error at a 99% confidence level based on a larger sample of 275 observations can be computed using the same formula:
Margin of error = z* (sigma / sqrt(n))
where z* is the z-score corresponding to a 99% confidence level, sigma is the known standard deviation, and n is the sample size.
The z-score for a 99% confidence level is still 2.576 (from the z table).
Substituting the given values, we get:
Margin of error = 2.576 * (27.5 / sqrt(275)) = 4.14
d. The margin of error is inversely proportional to the square root of the sample size. As the sample size increases, the margin of error decreases. Therefore, the margin of error with n = 275 will be smaller than the margin of error with n = 69, leading to a narrower confidence interval.
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What is 4 ( x − 1 ) ≥ 2 x + 6 as an improper fraction?
Answer:
18/5
Step-by-step explanation:
you have to times then divide
if the population standard deviation were 10 instead of 5, what effect would this new standard deviation have on margin of error?
If the population standard deviation were 10 instead of 5,Margin of error would rise as a result. A broader width of the confidence interval and a larger margin of error would be the outcomes of a higher standard deviation.
Define margin of error.The margin of error (MOE) for a survey indicates how closely the survey results should be compared to the actual population value. For instance, a poll with a 3% margin of error shows that 72% of respondents prefer Brand A over Brand B.
Given,
If the population standard deviation were 10 instead of 5,
Margin of error would rise as a result. A broader width of the confidence interval and a larger margin of error would be the outcomes of a higher standard deviation. The margin of error diminishes as sample size grows, to be precise. The margin of error rises as population variability does as well. The margin of error grows as the confidence level does.
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Evaluate the following polynomial if x = -3
\large x^2-5x+12
Answer: 36
Step-by-step explanation: If you're asking what the expression equals after plugging X's value in, this should leave you with an expression of -3^2 - 5(-3) + 12. By following the order of operations, you should receive an answer of 36.
can someone give me an example on how to do these and how to set it up?
The numeric values for the combinations of function are given as follows:
(f + g)(3) = 9.(f x g)(-1) = -8.(f ∘ g)(2) = 8.(g ∘ f)(0) = 2.(g ∘ g)(3) = -1.How to obtain the numeric values of the function?The numeric values for the function are obtained applying the operations from the table.
For the addition, we just add the numeric values, hence:
(f + g)(3) = f(3) + g(3) = 8 + 1 = 9.
For the multiplication, we just multiply the values, hence:
(f x g)(-1) = f(-1) x g(-1) = -2 x 4 = -8.
For the composition, the output of the inner function is the input to the outer function, hence:
(f ∘ g)(2) = f(g(2)) = f(3) = 8.(g ∘ f)(0) = g(f(0)) = g(0) = 2.(g ∘ g)(3) = g(g(3)) = g(1) = -1.Learn more about the numeric values of a function at brainly.com/question/28367050
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Please help me solve for X
I'll give brainlyest
Answer:
1. x = 8
2. x = 12
3. x = 11
4. x = 6
Step-by-step explanation:
1.
102 + 102 = 204
360 - 204 = 156
156 / 2 = 78
78 = 10x - 2
78 + 2 = 10x
80 = 10x
80 / 10 = x
x = 8
2.
81 = 7x - 3
81 + 3 = 7x
84 = 7x
84 / 7 = x
x = 12
3.
77 = 6x + 11
77 - 11 = 6x
66 = 6x
66 / 6 = x
x = 11
4.
115 + 115 = 230
360 - 230 = 130
130 / 2 = 65
65 = 8x + 17
65 - 17 = 8x
48 = 8x
48 / 8 = x
x = 6
Help with this question please
The range of function for the given domain is found as: (∞ , -∞).
Explain the term domain and range?The range of values that we are permitted to enter into our function is known as the domain of a function. The x values for a function like f make up this set (x). A function's range is the collection of values it can take as input. After we enter an x value, the function outputs this sequence of values.For the stated question-
Given function: y = -x³
When x → -∞, f(x) → ∞
And, when x → ∞, f(x) → -∞
Thus, the range of function for the given domain is found as: (∞ , -∞).
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If f(x) = e^3x/3x, then f ' (x) =
the derivative f'(x) of the function f(x) = e^(3x)/(3x) is given by:
f'(x) = (9xe^(3x) - 3e^(3x)) / (9x^2)
To find the derivative f'(x) of the function f(x) = e^(3x)/(3x), we will use the quotient rule.
The quotient rule states that if we have a function in the form of g(x)/h(x), then its derivative is given by:
(g'(x)h(x) - g(x)h'(x))/(h(x))^2
Here, g(x) = e^(3x) and h(x) = 3x.
Step 1: Find the derivatives of g(x) and h(x).
g'(x) = d(e^(3x))/dx = 3e^(3x)
h'(x) = d(3x)/dx = 3
Step 2: Apply the quotient rule.
f'(x) = (g'(x)h(x) - g(x)h'(x))/(h(x))^2
f'(x) = (3e^(3x) * 3x - e^(3x) * 3) / (3x)^2
Step 3: Simplify the expression.
f'(x) = (9xe^(3x) - 3e^(3x)) / (9x^2)
So, the derivative f'(x) of the function f(x) = e^(3x)/(3x) is given by:
f'(x) = (9xe^(3x) - 3e^(3x)) / (9x^2)
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The row of Pascal's triangle that corresponds to n=9 is as follows:
1 9 36 84 126 126 84 36 9 1
What is the row that corresponds to n=10?
To find the row that corresponds to n=10 in Pascal's triangle, we will need to use the formula for calculating the value of each entry in the row. The formula is given by:
C(n, k) = n! / (k! * (n - k)!)
where C(n, k) represents the value of the entry at row n and column k.
Using this formula, we can find the entries for row n=10 as follows:
C(10, 0) = 10! / (0! * 10!) = 1
C(10, 1) = 10! / (1! * 9!) = 10
C(10, 2) = 10! / (2! * 8!) = 45
C(10, 3) = 10! / (3! * 7!) = 120
C(10, 4) = 10! / (4! * 6!) = 210
C(10, 5) = 10! / (5! * 5!) = 252
C(10, 6) = 10! / (6! * 4!) = 210
C(10, 7) = 10! / (7! * 3!) = 120
C(10, 8) = 10! / (8! * 2!) = 45
C(10, 9) = 10! / (9! * 1!) = 10
C(10, 10) = 10! / (10! * 0!) = 1
Therefore, the row that corresponds to n=10 is:
1 10 45 120 210 252 210 120 45 10 1
This row has a similar shape to the previous row, but with larger values in each entry. Pascal's triangle is a fascinating mathematical object with many interesting properties, and it has been studied by mathematicians for centuries.
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Working together, Sam and Charlie can change all the light bulbs in the office building in 3 hours. It would have taken Charlie 8 hours to do the job alone.
A table showing Rate in part per hour, Time in hours, and Part of Light Bulbs Changed. The first row shows,Sam, and has r, 3, and r times 3. The second row shows Charlie, and has StartFraction 1 Over 8 EndFraction, 3 and StartFraction 1 Over 8 EndFraction times 3.
Which equation can be used to solve for the rate, r, for Sam to change all the light bulbs in the office building by himself?
3r = 3 r equals StartFraction 3 Over 8 EndFraction.
3r + 3 r plus StartFraction 3 Over 8 EndFraction equals 1. = 1
r + StartFraction 1 Over 3 EndFraction r plus StartFraction 3 Over 8 EndFraction r equals 1.r = 1
r + StartFraction 1 Over 3 EndFraction r plus StartFraction 1 Over 8 EndFraction r equals 1.r = 1
Answer:
B
3r + 3/8=1
Step-by-step explanation:
EDGE
Answer:
b
Step-by-step explanation:
It's a beautiful day for a soccer game on the Oberlin College campus. A soccer ball is sitting midfield and is being heated by the sun. Suppose that we set up coordinate axes so that the center of the ball is at the origin and suppose that the surface of the ball is approximated by a sphere with equation x2 + y2 + z2 = 126 in some system of units. Suppose that the temperature in the space in and around the ball is given by the function T(x,y.z) = x + 2y + 3z. (b) (3 points) Explain why there must be both coldest and hottest point on the surface of the soccer ball. (c) (14 points) Find all the coldest and hottest point on the surface of the soccer ball.
(a) There must be both coldest and hottest points on the surface of the soccer ball because the of the temperature function (b). The coldest point on the surface of the soccer ball is (3, 6, 9) and the hottest point is (-3, -6, -9).
(b) There must be both coldest and hottest points on the surface of the soccer ball because the temperature function T(x, y, z) = x + 2y + 3z is a linear function in the variables x, y, and z.
Considering the equation of the sphere x² + y² + z²= 126, which represents the surface of the soccer ball, the temperature function T(x, y, z) is a linear combination of x, y, and z.
Since the coefficients of x, y, and z are all positive (1, 2, and 3 respectively), as we move along the surface of the ball, the temperature will increase or decrease depending on the direction we move in. This means that there will be points on the surface where the temperature is at its maximum (hottest points) and points where the temperature is at its minimum (coldest points).
(c) To find the coldest and hottest points on the surface of the soccer ball, we need to optimize the temperature function T(x, y, z) = x + 2y + 3z subject to the constraint x²+ y²+ z² = 126.
To find the coldest point, we need to minimize T(x, y, z) under the given constraint. This can be done using Lagrange multipliers. Setting up the Lagrangian function:
L(x, y, z, λ) = T(x, y, z) - λ(x² + y² + z²- 126)
Taking partial derivatives and setting them equal to zero:
∂L/∂x = 1 - 2λx = 0
∂L/∂y = 2 - 2λy = 0
∂L/∂z = 3 - 2λz = 0
∂L/∂λ = -(x² + y²+ z² - 126) = 0
Solving these equations, we find:
x = 1/(2λ)
y = 2/(2λ)
z = 3/(2λ)
Substituting these values back into the constraint equation x² + y² + z² = 126, we get:
(1/(2λ))² + (2/(2λ))² + (3/(2λ))² = 126
14/(4λ²) = 126
λ^2 = 1/9
λ = ±1/3
Using λ = 1/3, we find:
x = 3
y = 6
z = 9
Therefore, the coldest point on the surface of the soccer ball is (3, 6, 9).
To find the hottest point, we can use the same process with the opposite sign of λ. Using λ = -1/3, we find:
x = -3
y = -6
z = -9
Therefore, the hottest point on the surface of the soccer ball is (-3, -6, -9).
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Factor completely 3x^2 + 5x + 1. (3x + 1)(x + 1) (3x + 5)(x + 1) (3x − 5)(x + 1) Prime
Answer:
prime
Step-by-step explanation:
3x^2 + 5x + 1
3x^2 factors in to 3x and x
1 factors into 1 and 1
( 3x + 1) ( x+1)
We need to verify the middle is 5
3x+1x = 4x
so this is not true
We cannot factor this so it is prime
Answer:
\(\large \boxed{\sf Prime}\)
Step-by-step explanation:
\(3x^2 + 5x + 1\)
We need to find two numbers that add to 5 and multiply to get 1.
There are no real numbers.
The expression cannot be factored. The expression is prime.
Craig collects stamps. He collected a total of 225 stamps. If 68% of the stamps he collected were foreign, how many other stamps did he collect
8. A person rode their bike 10 miles south going 15 mi/hr. How long did it take them?
9. An 8-kilogr
It takes the person 40 minutes to travel 10 miles at a rate of 15 miles per hour
How long did it take them?We can use the formula:
time = distance / speed
where "distance" is the distance traveled and "speed" is the speed at which the person is traveling.
In this case, the person rode their bike 10 miles south at a speed of 15 miles per hour.
Plugging these values into the formula, we get:
time = 10 miles / 15 miles per hour
Simplifying, we get:
time = 40 minutes
Therefore, it takes them 40 minutes
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Can someone help me with this math homework please!
Answer:
Post them individually
Step-by-step explanation:
1. B
2. 4th option ,----> Megan's at 2.5 per week
Megan's plant:
slope = 7-4.5/2-1 = 2.5= growth rate
Suzanne's plant:
slope = 7-5/2-1= 2 = growth rage
3.D
4 2nd option , $2 for each song
Rate of change = 6-4/3-2 = 2
Evaluate the expression when a=-6.
a^2 + 5a - 5
Answer:
61
Step-by-step explanation:
(6)^2+5(6)-5
=36+30-5
=61
Answer:
1
Step-by-step explanation:
\(( - 6) {}^{2} + 5 \times - 6 - 5 \\ 36 - 30 - 5 \\ 36 - 35 \\ = 1\)