Answer:
Independent: Number of pounds
Dependent: Cost
Rate of change: $1.99 per pound
Explanation:
In this situation, there are 2 variables: The number of pounds and the cost.
The independent variable is the variable that you decide. Since you decide how many pounds of apples to buy, the independent variable is the number of pounds.
The dependent variable depends on the independent variable. Since the cost change depending on the number of pounds. The cost is the dependent variable.
Finally, the rate of change can be calculated as:
\(\frac{\text{ Change dependent variable}}{Change\text{ independent variabl}e}=\frac{11.94-3.98}{6-2}=\frac{7.96}{4}=1.99\)Therefore, the rate of change is $1.99 per pound.
jack is 1.36 meters tall. his friend ian is 5 cm taller than jack. what height is ian? give your answer in meters
According to the question,
Height of Jack = 1.36 mHeight of Ian = 5 cm + Height of JackWe are asked to calculate height of Ian in meters.
As in the question it is stated that the height of Ian is 5 cm more than the height of Jack. So, we need to add the height of Jack and 5 cm in order to calculate the height of Ian.
Note that, units must be same! We are asked to find the height of Ian in meters. So, we'll convert 5 cm into meters and then we'll perform addition.
Let's commence the steps!
\(\\ \twoheadrightarrow \quad \sf { Height_{(Ian) } = 5\; cm + Height_{(Jack) } }\\ \)
1 cm = (1/100) m\(\\ \twoheadrightarrow \quad \sf { Height_{(Ian) } = \dfrac{5}{100} \; m + 1.36 \; m} \\\)
\(\\ \twoheadrightarrow \quad \sf { Height_{(Ian) } = \dfrac{5}{100} \; m + \dfrac{136}{100} \; m} \\\)
\(\\ \twoheadrightarrow \quad \sf { Height_{(Ian) } = \Bigg( \dfrac{5 + 136}{100} \Bigg ) \; m}\\ \)
\(\\ \twoheadrightarrow \quad \sf { Height_{(Ian) } = \Bigg( \dfrac{141}{100} \Bigg ) \; m} \\\)
\(\\ \twoheadrightarrow \quad \bf \underline { Height_{(Ian) }= 1.41 \; m} \\ \)
Therefore, height of Ian is 1.41 meters.
Write the area of the rectangle as a product and as a sum
To convert a nominal value to a real value in dollar terms, the base year index must be set at 100.
False
True
To convert a nominal value to a real value in dollar terms, the base year index must be set at 100.The answer: True
1. Nominal value represents the face value or stated value of a currency, security, or financial instrument without considering the effects of inflation or changes in the purchasing power of money.
2. Real value is the value adjusted for inflation, reflecting the purchasing power of a currency in a given base year.
3. To convert a nominal value to a real value in dollar terms, we need to adjust the nominal value for inflation using a price index.
4. The base year index is typically set at 100, which allows for easy comparison and calculation of the real value.
5. To convert the nominal value to a real value, divide the nominal value by the price index in the current year and then multiply by the base year index (100). This will give you the real value in dollar terms.
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To convert a nominal value to a real value in dollar terms, the base year index must be set at 100.The answer: True
1. Nominal value represents the face value or stated value of a currency, security, or financial instrument without considering the effects of inflation or changes in the purchasing power of money.
2. Real value is the value adjusted for inflation, reflecting the purchasing power of a currency in a given base year.
3. To convert a nominal value to a real value in dollar terms, we need to adjust the nominal value for inflation using a price index.
4. The base year index is typically set at 100, which allows for easy comparison and calculation of the real value.
5. To convert the nominal value to a real value, divide the nominal value by the price index in the current year and then multiply by the base year index (100). This will give you the real value in dollar terms.
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For which function will both ordered pairs (2, 8) and (6, 12) be solutions? ANSWER FAST WILL MARK BRAINLIEST
y = 2 x
y = 4 x
y = 6 + x
y = 18 - x
Answer:
y=6+x
Step-by-step explanation:
1+pq; use p=6 and q=5
Answer:
31
Step-by-step explanation:
5×6=30+1=31.USE PLEASE EXCUSE MY DEAR AUNT SALLY
The statement, "A rational function is continuous for all real numbers." isA.true for all rational functions.B.true for some rational functions.C.never true for rational functions.
A rational function is a function that can be written in the form p(x)/q(x), where p(x) and q(x) are polynomials of x and q(x)≠0.
A rational function is not defined at values of x where the denominator of the function becomes zero. So, a rational function may or may not be defined at all real numbers.
A rational function will be continuous at points in the domain of the function.
Since a rational function need not be defined at all real numbers, the function need not be continuous at all real numbers.
Therefore, the statement "A rational function is continuous for all real numbers" is true for only some rational functions".
So, option B is correct.
Suppose the mean height in inches of all 9th grade students at one high school estimated. The population standard deviation is 3 inches. The heights of 8 randomly selected students are 66, 65, 74, 66, 63, 69, 63 and 68.
Ex: 12.34
Margin of error at 99% confidence level = Ex: 1.23
99% confidence interval = [ Ex: 12.34 Ex: 12.34 1
[smaller value, larger value]
A 99% confidence level, the margin of error is approximately 2.7363, and the 99% confidence interval for the mean height of 9th grade students is [62.7637, 68.2637].
To calculate the margin of error and the 99% confidence interval for the mean height of 9th grade students, we can use the formula:
Margin of Error = (Z × (σ / √n))
where Z represents the Z-score corresponding to the desired confidence level, σ is the population standard deviation, and n is the sample size.
Calculate the sample mean.
Sample mean (\(\bar X\)) = (66 + 65 + 74 + 66 + 63 + 69 + 63 + 68) / 8
Sample mean (\(\bar X\)) = 524 / 8
Sample mean (\(\bar X\)) = 65.5
Calculate the margin of error.
Z-score for 99% confidence level: Since we have a large enough sample size (n > 30), we can use the Z-score of 2.576 for a 99% confidence level.
Margin of Error = (2.576 × (3 / √8))
Margin of Error = 2.576 × (3 / 2.8284)
Margin of Error = 2.576 × 1.0617
Margin of Error = 2.7363 (rounded to four decimal places)
Calculate the 99% confidence interval.
Lower bound = Sample mean - Margin of Error
Lower bound = 65.5 - 2.7363
Lower bound = 62.7637 (rounded to four decimal places)
Upper bound = Sample mean + Margin of Error
Upper bound = 65.5 + 2.7363
Upper bound = 68.2637 (rounded to four decimal places)
Therefore, at a 99% confidence level, the margin of error is approximately 2.7363, and the 99% confidence interval for the mean height of 9th grade students is [62.7637, 68.2637].
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the list shows the weight in pounds of 6 puppies at birth. 3, 1.6, 2.8, 2.5, 1.7, 2.8 what is the mean absolute deviation of these numbers?
There are five members in a family and the average mass is 42.5 kg. What is the total mass? Please help me.
Answer:
the total mass is 212.5 kg
Step-by-step explanation:
The computation of the total mass is as follows;
Given that
Number of family members = 5
And, the average mass is 42.5 kg
Now based on the above information
The total mass is
= Number of family members × average mass
= 5 × 42.5 kg
= 212.5 kg
Hence, the total mass is 212.5 kg
Is the difference of a rational number and an irrational number always irrational? Explain.
Answer:
Yes, because a rational, for example, 1, minus tt (that is supposed to be Pi Lol)
is approximately -2.14.
What is the following product?
(~/14 - 3)(/12 +7)
O 2N/42+7N/2-6-/21
O 14-6+N7
• 26 + /21 -/15-/10
2,/42 - 21
Option A
From midnight to 7:00 am, the temperature dropped 0.8°C
temperature at 7:00 am was 4.4 deg * C what was the temperature at midnight?
Answer:
5.2
Step-by-step explanation:
add back 0.8 from 7 am temp which is 4.4 degrees.
Answer:
5.2 °C
Step-by-step explanation:
4.4°C + 0.8°C = 5.2°C
which of the following functions will return the value of x, rounded to the nearest whole number?question 5 options:a) abs(x)b) fmod(x)c) round(x)d) whole(x)e) sqrt(x
The function that will return the value of x, rounded to the nearest whole number is option (c) round(x)
This function rounds the value of x to the nearest integer. For example, if x = 3.4, round(x) will return 3, and if x = 3.6, round(x) will return 4.
Option (a) abs(x) returns the absolute value of x, which means it returns the positive value of x regardless of its sign. For example, if x = -3, abs(x) will return 3.
Option (b) fmod(x) returns the remainder of x divided by another number, so it does not round x to the nearest whole number.
Option (d) whole(x) is not a standard math function, so it is unclear what it would do.
Option (e) sqrt(x) returns the square root of x, so it does not round x to the nearest whole number.
Therefore, the correct answer to this question is option (c) round(x).
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If two lines meet at a 90 angle, they are perpendicular.
If two lines are perpendicular, they have opposite reciprocal slopes.
It is true that If two lines meet at a 90 angle, they are perpendicular. If two lines are perpendicular, they have opposite reciprocal slopes.
What is perpendicular?In geometry, perpendicular lines are two lines that intersect at a 90-degree angle. A right angle is formed where the lines cross each other, so that one line is at a 90-degree angle to the other. This means that the lines are orthogonal to each other, and their slopes are negative reciprocals of each other. For example, consider the Cartesian plane where the x-axis and y-axis are perpendicular lines. The slope of the x-axis is 0, and the slope of the y-axis is undefined, so their negative reciprocals are also undefined and 0, respectively. Perpendicular lines are used extensively in mathematics, physics, and engineering to describe relationships between objects and forces. In construction, perpendicular lines are important for building structures that are stable and level. In computer graphics, perpendicular lines are used to create images and animations with precise angles and proportions.
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Complete question:
If two lines meet at a 90 angle, they are perpendicular. If two lines are perpendicular, they have opposite reciprocal slopes. True or False.
The area A(x) of a square tile is a function of the length x of a side of the square. Write a function rule for the area of a square tile. Find and interpret A(8). A(x)=
The area A(x) of a square tile is given by the formula A(x) = x^2, where x represents the length of a side of the square.
This function rule tells us that the area of a square tile is equal to the square of its side length.
To find A(8), we simply substitute x = 8 into the function rule. A(8) = 8^2 = 64. This means that the area of a square tile with a side length of 8 units is 64 square units. In interpretation, A(8) means that if we have a square tile with a side length of 8 units, its area would be 64 square units.
This information could be useful, for example, if we need to calculate the number of tiles needed to cover a given area. We can simply divide the total area by the area of one tile (in this case, 64) to get the number of tiles needed.
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no links please Angle A measures 50 degrees. If angle A is rotated 45 degrees, what is the measure of angle A'?
Answer:
95? Sorry if I'm wrong.... :)
Step-by-step explanation:
Help please fast geometry surface area!
Answer:
SA=2πrh+2πr2=2·π·12·3+2·π·122≈282.7cm2
Gemma said, "−6 is closer to 0 than 4 because it is the smaller number."Is Gemma’s statement true or false? Give a math argument to support your answer.
Answer:
False.
Step-by-step explanation:
I believe this is a false statement, due to the fact '6' is larger than four. In this case, the six is negative. Therefore, negative numbers are always closer to zero than positive numbers.
Hope it helped :)
Solve the following systems using substitution or elimination
x^2+y^2=100
y-x=2
Answer:
Step-by-step explanation:
Solve 5c − c + 10 = 34.
Answer: 6
Step-by-step explanation: 1. 5c-c= 4c. The equation would then be 4c+10=34.
2. From there, you subtract 10 from both sides of the equation. By doing this, you have the variable and the nonvariable on separate sides of the equation.
3. After doing that, you should have 4c=24. To get the variable by itself, divide both sides by 4. 4c/4 is c and 24/4 is 6.
The final answer is 6. Hope this helped you:)
the figure below is reflected over x axis. what are the coordinates of the image of point v after this transformation
The point V(3, 5) is reflected over the x axis, the new point is V'(3, -5)
What is reflection?Reflection is a type of transformation. Transformation is the movement of a point either up, left, right or down in the coordinate plane.
Reflection is a rigid transformation because it conserves the size and shape of the figure.
If a point A(x, y) is reflected over the x axis, the new point is A'(x, -y)
The coordinate of point V is (3, 5). If the point is reflected over the x axis, the new point is V'(3, -5)
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find the following functions
The function operation values are,
a) (f\(\circ\)g)(x) = 6x+42
b) (g\(\circ\)f)(x) = 6x+7
c) (f\(\circ\)g)(4)= 66
d) (g\(\circ\)g)(4) = 31.
What is function?
A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable). In mathematics, functions exist everywhere, and they are crucial for constructing physical links in the sciences.
Here the given functions are f(x) = 6x and g(x) = x+7 then,
a) (f\(\circ\)g)(x) = f(g(x))
=> f(x+7)
=> 6(x+7)
=> 6x+42.
b) (g\(\circ\)f)(x)
=> g(f(x))
=> g(6x)
=> 6x+7
c) (f\(\circ\)g)(4)
=> 6(4)+42
=> 24+42= 66
d) (g\(\circ\)f)(4)
=> 6(4)+7
=> 24+7 = 31.
Hence the function operation values are,
a) (f\(\circ\)g)(x) = 6x+42
b) (g\(\circ\)f)(x) = 6x+7
c) (f\(\circ\)g)(4)= 66
d) (g\(\circ\)g)(4) = 31.
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Tara and Edith share a sum of money in the ratio 13 : 12
What percentage of the money does Tara receive?
Answer:
She receives 108.33% ( or $108.33)
Step-by-step explanation:
Tara receives $108.33 because 13/12 into a percentage =108 times 100
which = 108.33.That's all there is to it! Hope you have a great day.
Can someone pls help me
Answer:
? what do u want me todo
Step-by-step explanation:
what's the value of x 2x-7=13 3x+4=25
Answer:
2x-7=13 (x=10) 3x+4=25 (x=7)
Step-by-step explanation:
1. 2x-7=13
Add 7 to both sides, then simplify. Then, divide both sides by two. Simplify furthermore to get the answer.
2x-7+7=2x 13+7=20.....2x=20 2x/2=x 20/2=10.....x=10
You can use the same process for the other equation.
A cereal box says that now it contains 20% more originally it came with 18.5 ounces of cereal how much cereal does the box come with now
Answer:
Step-by-step explanation:
Step-by-step explanation: the original weight of a cereals is ounces. Now according to question, new weight of cereals is more of original weight of cereals. Therefore, New weight of cereals will be formulated as Hence, the new weight of cereals is ounces.
the extract of a plant native to taiwan has been tested as a possible treatment for leukemia. one of the chemical compounds produced from the plant was analyzed for a particular collagen. the collagen amount was found to be normally distributed with a mean of 61 and standard deviation of 9.8 grams per mililiter. a. what is the probability that the amount of collagen is greater than 60 grams per mililiter? b. what is the probability that the amount of collagen is less than 90 grams per mililiter? c. what percentage of compounds formed from the extract of this plant fall within 1 standard deviation of the mean?
a. The probability that the amount of collagen is greater than 60 grams per mililiter is 0.5398
b. The probability that the amount of collagen is less than 90 grams per mililiter is 0.9985.
c. Approximately 68% of the data falls within 1 standard deviation of the mean for a normally distributed dataset.
a. To find the probability that the amount of collagen is greater than 60 grams per milliliter, we'll use the z-score formula:
z = (X - μ) / σ
where X is the value we're interested in, μ is the mean, and σ is the standard deviation.
z = (60 - 61) / 9.8 ≈ -0.1
Now, we'll use a z-table or calculator to find the probability corresponding to this z-score.
A z-score of -0.1 corresponds to a probability of approximately 0.4602.
Since we're looking for the probability that the amount of collagen is greater than 60 grams per milliliter, we need to find the area to the right of this z-score:
P(X > 60) = 1 - P(X ≤ 60) = 1 - 0.4602 ≈ 0.5398
b. To find the probability that the amount of collagen is less than 90 grams per milliliter, we'll again use the z-score formula:
z = (90 - 61) / 9.8 ≈ 2.96
A z-score of 2.96 corresponds to a probability of approximately 0.9985.
Since we're looking for the probability that the amount of collagen is less than 90 grams per milliliter, we'll use this probability directly:
P(X < 90) ≈ 0.9985
c. To find the percentage of compounds formed from the extract of this plant that fall within 1 standard deviation of the mean, we'll use the empirical rule (68-95-99.7 rule), which states that approximately 68% of the data falls within 1 standard deviation of the mean for a normally distributed dataset.
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Interpret the divergence of F=xy2i+yj+xzk at a point (1,2,1)
At the point (1, 2, 1), the divergence of the vector field F is 6. This indicates that the vector field is spreading out or diverging at that point.
The divergence of the vector field F = xy^2i + yj + xzk at the point (1, 2, 1) represents the rate at which the vector field is spreading out or converging at that point. To determine the divergence, we calculate the partial derivatives of each component of F with respect to their respective variables and sum them up.
The divergence of a vector field F = P(x, y, z)i + Q(x, y, z)j + R(x, y, z)k is given by the expression div(F) = ∂P/∂x + ∂Q/∂y + ∂R/∂z, where ∂P/∂x, ∂Q/∂y, and ∂R/∂z are the partial derivatives of P, Q, and R with respect to x, y, and z, respectively.
In this case, we have F = xy^2i + yj + xzk. Let's calculate the divergence of F at the point (1, 2, 1):
∂P/∂x = ∂/∂x(xy^2) = y^2
∂Q/∂y = ∂/∂y(y) = 1
∂R/∂z = ∂/∂z(xz) = x
div(F) = ∂P/∂x + ∂Q/∂y + ∂R/∂z = y^2 + 1 + x
Substituting the values x = 1 and y = 2 into the expression for div(F), we have:
div(F) = (2)^2 + 1 + 1 = 4 + 1 + 1 = 6
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Show that for any x0∈R,lim x→x0 x=x0
To show that for any given positive value ε, we can find a positive value δ such that if the distance between x and x₀ is less than δ (0 < |x - x₀| < δ), then the difference between x and x₀ is less than ε (|x - x₀| < ε). This demonstrates that as x approaches x₀, the value of x approaches x₀. Therefore, the limit of x as x approaches x₀ is indeed x₀.
To show that for any x₀ ∈ R, limₓ→ₓ₀ x = x₀, we need to demonstrate that as x approaches x₀, the value of x becomes arbitrarily close to x₀. We want to prove that as x approaches x₀, the value of x approaches x₀.
By definition, for any given ε > 0, we need to find a δ > 0 such that if 0 < |x - x₀| < δ, then |x - x₀| < ε.
Let's proceed with the proof:
1. Start with the expression for the limit:
limₓ→ₓ₀ x = x₀
2. Let ε > 0 be given.
3. We need to find a δ > 0 such that if 0 < |x - x₀| < δ, then |x - x₀| < ε.
4. We can choose δ = ε as our value for δ. Since ε > 0, δ will also be greater than 0.
5. Assume that 0 < |x - x₀| < δ.
6. By the triangle inequality, we have:
|x - x₀| = |(x - x₀) - 0| ≤ |x - x₀| + 0
7. Since 0 < |x - x₀| < δ = ε, we can rewrite the inequality as:
|x - x₀| < ε + 0
8. Simplifying, we have:
|x - x₀| < ε
9. Therefore, we have shown that for any ε > 0, there exists a δ > 0 such that if 0 < |x - x₀| < δ, then |x - x₀| < ε. This confirms that:
limₓ→ₓ₀ x = x₀.
In simpler terms, as x approaches x₀, the value of x gets arbitrarily close to x₀.
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2. A computer technician charges
$75 for a consultation plus $35
per hour
Answer: y = 35x + 75
Step-by-step explanation:
Let x be the number of hours and y is the total cost
We will have the equation
y = 35x + 75