4.15 is smaller than 415 tenths.
We have,
The concept used to compare 4.15 and 415 tenths is the conversion between decimal and fraction forms.
By recognizing that 415 tenths can be expressed as the decimal 41.5, we can directly compare it to 4.15.
Comparing the two decimals, we can determine that 4.15 is smaller than 41.5.
To compare 4.15 and 415 tenths, we can convert 415 tenths to its decimal form.
415 tenths is equal to 415/10 = 41.5.
Now we can see that 4.15 is smaller than 41.5.
Therefore,
4.15 is smaller than 415 tenths.
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Tina pays $45.50 for 10 boxes of wheat crackers. What is the unit price? *
Unit price = total price / quantity
Unit price = 45.50 / 10
Unit price = $4.55
Answer:
$4.55 because I look it up
The square root of 125 is between
.
Answer:
Step-by-step explanation:
The square root of 125 is equal to 5√5 or 11.18 (approximately).
Below:- see both pictures
Answer:
The square root of 125 is between [D. 11 and 12] .
Step-by-step explanation:
find the gradient of f(x,y,z)=(x^2 y^2 z^2)^(-1/2) ln(xyz) at the point (1,2,2)
So, the gradient of f at the point (1,2,2) is: ∇f(1,2,2) = (1/2) i + (1/4) j + (1/2) k where i, j, and k are the unit vectors in the x, y, and z directions, respectively.
To find the gradient of the function f(x,y,z) at the point (1,2,2), we need to find the partial derivatives of f with respect to x, y, and z and evaluate them at the given point.
So, we have:
f(x,y,z) = (x^2 y^2 z^2)^(-1/2) ln(xyz)
∂f/∂x = (-1/2) (x^2 y^2 z^2)^(-3/2) (2xy^2 z^2) + (1/x) (x^2 y^2 z^2)^(-1/2)
= (-xy^2 z^2)/(x^2 y^2 z^2) + (1/x) (x^2 y^2 z^2)^(-1/2)
= -y^2 z^2/(x^2 y^2 z^2) + 1/xsqrt(x^2 y^2 z^2)
= -1/(xyz) + 1/x
∂f/∂y = (-1/2) (x^2 y^2 z^2)^(-3/2) (x^2 2yz^2) + (1/y) (x^2 y^2 z^2)^(-1/2)
= (-x^2 yz^2)/(x^2 y^2 z^2) + (1/y) (x^2 y^2 z^2)^(-1/2)
= -x^2/z^2 + 1/ysqrt(x^2 y^2 z^2)
= -x^2/(z^2 y) + 1/y
∂f/∂z = (-1/2) (x^2 y^2 z^2)^(-3/2) (x^2 y^2 2z) + (1/z) (x^2 y^2 z^2)^(-1/2)
= (-x^2 y^2 z)/(x^2 y^2 z^2) + (1/z) (x^2 y^2 z^2)^(-1/2)
= -x^2 y^2/(z^2 x^2 y^2) + 1/zsqrt(x^2 y^2 z^2)
= -x^2 y^2/(z^3) + 1/z
Now we can evaluate these partial derivatives at the point (1,2,2):
∂f/∂x (1,2,2) = -1/(122) + 1/1 = 1/2
∂f/∂y (1,2,2) = -1/(222) + 1/2 = 1/4
∂f/∂z (1,2,2) = -1/(122) + 1/2 = 1/2
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Is it a function or non function?
Answer:
non function because there are 2 arrows coming from the 4
A doctor was interested in the blood pressure of all 16-year-olds in the state of Colorado. She gathered data from a random sample of 10 pediatricians in the state and wanted to create an appropriate graphical representation for the data. Which graphical representation would be best for her data?
The graphical representation in the sample that would be best for her data is a bar graph.
How to illustrate the information?It should be noted that based on the information, the doctor gathered data from a random sample of 10 pediatricians in the state and wanted to create an appropriate graphical representation for the data.
It should be noted that the bar graph will be applicable. This is because it will display the categories of data with a bar to represent the blood pressure of the children.
This can then be used to analyze the needed information.
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In bungee jumping, a bungee jump is the amount the cord will stretch at the bottom of the fall. The stiffness of the cord is related to the amount of stretch by the equation given below. K = [(2W(S+L)]/(S^2) W= weight K = cord stiffness (pounds per foot) L = free length of cord (feet) S = stretch (feet) (a) A 190-pound person plans to jump off a ledge attached to a cord of length 52 feet. If the stiffness of the cord is no less than 28 pounds per foot, how much will the cord stretch?
Answer:
6.7ft
Step-by-step explanation:
190÷28=6.7 is correct
If the stiffness of the cord is no less than 28 pounds per foot, the cord stretch will be approximately 7 feet long
Given the equation that related the stiffness of the cord is expressed as:
\(K=\frac{(2W(S+L))}{S^2}\) where:
W is the weight
K = cord stiffness (pounds per foot)
L = free length of cord (feet)
S = stretch (feet)
Given the following parameters
W = 190 pounds
L = 52 feet
k = 28 pounds per foot
Required
Stretch S
Substitute the given expressions into the equation above to have:
\(28=\frac{(2(190)(S+52))}{S^2}\\28S^2=380(S+52)\\28S^2 = 380S+19,760\\28S^2 - 380S-19,760=0\\\)
On factorizing the result
The stretch is approximately 7 feet long
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help me quickly please!!! what is the area of the composite figure if line AB is congruent to line BC which is congruent to line CD which is congruent to line DA which is congruent to DN?
(2pi+28)mm^2
(2pi+32)mm^2
(2pi+40)mm^2
(2pi+48)mm^2
======================================================
Work Shown:
Segments AB, BC, CD, DA, and DN are all the same length (4 units)
The semicircle has area of
A = (1/2)*pi*(radius)^2
A = 0.5*pi*2^2
A = 2pi
The square has area of
B = (side length)^2
B = 4^2
B = 16
The trapezoid has area of
C = (height)*(base1+base2)/2
C = (DN)*(CD+MK)/2
C = (4)*(4+8)/2
C = 24
Add up the results of A, B and C to get the total area
A+B+C = 2pi+16+24 = 2pi+40
The total area is 2pi+40 square mm
The area of the figure will be 2π + 40 mm². Then the correct option is C.
What is the area?The area of a two - dimensional figure is the area that its perimeter encloses. The quantity of unit squares that occupy a closed figure's surface is its region.
The figure is made by semicircle, square, and trapezium. Then the area is given as,
A = Area of a semicircle + Area of square + Area of trapezium
A = (π / 2) x r² + (AB)² + 1/2 x (CD + MK) x DN
A = (π / 2) x 2² + (2 x 2)² + 1/2 x (4 + 8) x 4
A = 2π + 16 + 24
A = 2π + 40 mm²
The area of the figure will be 2π + 40 mm². Then the correct option is C.
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Select the equations which graphs in space represent a cylinder. a) y = ln (z) b) y = cos(x) c) z = sin(y) d) xy = 8 e) x² + y² = z = 2 f) z = xy
The equations that represent a cylinder in space are d), e), and f). The equation that represents a cylinder in space is:
(x - a)^2 + (y - b)^2 = r^2
where (a, b) is the center of the circular base of the cylinder and r is the radius of the circular base.
Based on this equation, we can identify the equations that represent a cylinder in space:
d) xy = 8 (a cylinder with the circular base of radius 2 and axis along the z-axis)
e) x^2 + y^2 = 2z (a cylinder with the circular base of radius sqrt(2) and axis along the z-axis)
f) z = xy (a cylinder with the circular base of radius 0 and axis along the z-axis)
Therefore, the equations that represent a cylinder in space are d), e), and f).
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What are the solutions of the inequality 2x² x 6 0?
The solutions of the inequality \(2x^{2} + x - 6 = 0\) are 3/2, -2. This can be found by using the Quadratic Formula, which states that for any quadratic equation of the form \(ax^{2} +bx + c = 0\), the solutions are \(x = -b +/-\sqrt{b^{2} -4ac} /2a\).
Discriminant: b² - 4 a c = 1 - 4(2)(-6) = 1 + 48 = 49
Solution 1: x = \(-b + \sqrt{b^{2} -4ac} /2a\) = (-1 + √49)/(2×2) = (-1 +7)/4 = 6/4 = 3/2
Solution 2: x = \(-b-\sqrt{b^{2} -4ac} /2a\)= (-1 - √49)/(2×2) = -8/4 = -2
So, the two solutions are 3/2 and -2.
The equation can also be written as,
\(2x^{2} +4x -3x-6=0\)
\(2x(x+2) -3(x+2) = 0\)
\((2x-3)(x+2) = 0\)
x = 3/2, -2
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Glenn is shopping for a new laptop. he found the one he wants at two stores, Tech Pro and Office Zone. The computer is listed for $659 at TechPro and $709 at Office Zone. TechPro is having a 15% off sale while Office Zone is having a 20% off sale. Which store has the better sale price, and how much will he save?
Answer:
Glenn needs to stop shopping for laptops at retail stores and just use ebay
Step-by-step explanation:
it's cheaper
To see if students with longer feet tend to be taller, a random sample of 25 students was selected from a large high school. For each student, x=foot length (cm) and y=height (cm) were recorded. We checked that the conditions for inference about the slope of the population regression line are met. Here is a portion of computer output for this data. Which of the following is the equation for the least squares regression line for predicting height from foot length?answer choices- predicted height = 10.2204 + 0.4117 (foot length)- predicted height = 0.4117 + 3.0867 (foot length)- predicted height = 91.9766 + 3.0867 (foot length)- predicted height = 91.9766 + 6.47044 (foot length)
The equation for the least squares regression line for predicting height from foot length is :
predicted height = 91.9766 + 6.47044 (foot length).
To find the equation for the least squares regression line for predicting height from foot length, we need to use the given computer output. Here is the computer output:
The regression equation is:
y^ = b0 + b1x
where
b0 = 91.9766 and b1 = 6.47044
Therefore, the equation for the least squares regression line for predicting height from foot length is:
predicted height = 91.9766 + 6.47044 (foot length)
Thus, the correct answer is:
predicted height = 91.9766 + 6.47044 (foot length)
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At the grocery store, Miranda weighs 2 pound of green beans for a recipe she wants to make. How many ounces of green beans did Miranda weigh?
Answer:
32
Step-by-step explanation:
Hope it helps!!
Are my answers correct. If not pls show work where i went wrong.
Suppose you are studying the average systolic pressure (in mmHg) of all possible ramdom samples of 100 adults from a population of 2,500 adults in Souther California hospitals. Assume the underlying population systolic blood pressure follows a Normal distribution with mean of 115 mmHg and standard deviation of 3 mmHg.
1. what is the standard deviation of the sampling distribution? i think it is 115 mmHg
2. what is the standard deviation of the sampling distribution? i got 0.03 mmHg
3. true or false: to determine the shape of the sampling distribution of the mean blood pressure, we need to know the shape of the underlying distribution. i think its true
4. Calculate the 95% CI for the sampling distribution of the mean blood pressure. Use 1.96 for the critical value and round your answer to ywo decimal places. I got 114.94-115.06
1. The standard deviation of the sampling distribution is not 115 mmHg. To calculate it, use the formula σ/√n, where σ is the population standard deviation, and n is the sample size. In this case, σ = 3 mmHg and n = 100. So, the standard deviation of the sampling distribution is 3/√100 = 3/10 = 0.3 mmHg.
2. Your answer of 0.03 mmHg is incorrect. As calculated above, the correct standard deviation of the sampling distribution is 0.3 mmHg.
3. Your answer is true. To determine the shape of the sampling distribution of the mean blood pressure, we need to know the shape of the underlying distribution, which in this case is given as a Normal distribution.
4. Your 95% CI calculation is incorrect. To calculate the 95% CI, use the formula µ ± (critical value * standard deviation of the sampling distribution). In this case, µ = 115 mmHg, the critical value is 1.96, and the standard deviation of the sampling distribution is 0.3 mmHg. So, the 95% CI is 115 ± (1.96 * 0.3) = 115 ± 0.588. This results in a 95% CI of 114.41-115.59 (rounded to two decimal places).
The standard deviation of the sampling distribution is 0.3 mmHg. It is true that to determine the shape of the sampling distribution of the mean blood pressure, we need to know the shape of the underlying distribution. The 95% CI for the sampling distribution of the mean blood pressure is 114.41-115.59.
1. Your answer is incorrect.
The standard deviation of the sampling distribution is calculated using the formula:
the standard deviation of the population / √(sample size).
In this case, it would be
3 mmHg / √(100) = 3 mmHg / 10
The standard deviation of the sampling distribution = 0.3 mmHg.
2. Your answer is incorrect, as explained in the previous point. The correct standard deviation of the sampling distribution is 0.3 mmHg.
3. Your answer is true. To determine the shape of the sampling distribution of the mean blood pressure, we need to know the shape of the underlying distribution, which is given as a Normal distribution.
4. Your answer is close but slightly off.
To calculate the 95% CI (confidence interval) for the sampling distribution of the mean blood pressure, we use the formula:
average ± (critical value × standard deviation of the sampling distribution).
In this case, it would be
115 ± (1.96 × 0.3) = 115 ± 0.588.
So, the correct 95% CI is 114.41-115.59 when rounded to two decimal places.
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Jayne has a home-based business putting on children’s parties. She charges $60 to design the party and then $10.00 per child. Write a function rule that relates the total cost of the party to the number of children n.
f(n) = 10n – 55
f(n) = 10 – 55n
f(n) = 10 + 60n
f(n) = 60 + 10n
Answer: D. f(n) = 60 + 10n.... algebra.com
f(n) = 10 + 60n
f(n) = 60 + 10n
f(n) = 10n � 55
f(n) = 10 � 55n
ANSWER: f(n)=$60+$10n
Step-by-step explanation: D. f(n) = 60 + 10n.... brainly.com
She charges $60 to design the party
So we know we need to add 60. So 60 +
then $10.00 per child
10 dollars per child mean 10 times # of children so we have:
10n
Put it all together:
60 + 10n
f(n) = 60 + 10n
Luis purchased a laptop computer that was marked down by
\( \frac{2}{5} \)
of the original price. What fractional part of the original price did Luis pay?
Answer:
Luis paid 3/5 of the original price
Step-by-step explanation:
Luis purchased a laptop with a fractional discount of 2/5 of the original price.
When dealing with fractional parts of a whole, the sum of all parts must equal 1. With this in mind, we can say:
Paid price + Discount price = Original price
Or, equivalently:
paid fraction + discount fraction = 1
From the above relation, it follows that:
paid fraction = 1 - discount fraction
\(\displaystyle \text{paid fraction }=1-\frac{2}{5}\)
\(\displaystyle \text{paid fraction }=\frac{5-2}{5}\)
\(\displaystyle \text{paid fraction }=\frac{3}{5}\)
Luis paid 3/5 of the original price
Please i need help on math i need fast respond
help me and the 4 one says how many tables in a row are needed to seat 127 students explain your answear i have 30 minutes please hurry
Answer:
#1 Is 7 Students
#2 Is 9 Students
#3 Is 16 Students
#4 is 125 tables
When the selection of the place and, consequently, prospective respondents is subjective, rather than objective, it is called ________ sampling
Purposive sampling is a sampling technique in which the sample is selected based on the researcher's knowledge and judgment of the population. It is a non-probability sampling method that is commonly used in qualitative research, where the researcher wants to investigate specific characteristics or features of a particular population.
When the selection of the place and, consequently, prospective respondents is subjective, rather than objective, it is called purposive sampling.Purposive sampling is a non-probability sampling technique that is used by researchers when they want to investigate specific characteristics or features of a particular population. In this type of sampling, the selection of the sample is based on the researcher's judgment, knowledge, and experience rather than on random selection.
The researcher chooses individuals, groups, or places that are considered to be representative of the population and that are most likely to provide the desired information. This method is often used in qualitative research, where the researcher is interested in gaining in-depth insights into a particular phenomenon, event, or group.
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my question is
3420 divided 360
Answer:
.3420 / 360= 9.5
Step-by-step explanation:
hope that will help you.which inequality is equivalent to the given equality of -4(x+7)<3(x-2)
Answer:
x > 22/7
_________________________________________
Notice*
Because there are no options, we must find it algebraically.
_____________________________________________
Let's solve your inequality step-by-step.
−4(x+7)<3(x−2)
Step 1: Simplify both sides of the inequality.
−4x−28<3x−6
Step 2: Subtract 3x from both sides.
−4x−28−3x<3x−6−3x
−7x−28<−6
Step 3: Add 28 to both sides.
−7x−28+28<−6+28
−7x<22
Step 4: Divide both sides by -7.
-7x/-7 = 22/-7
x > -22/7
Answer:
x > −22/7
What is the greatest common divisor of 22021 + 22022, 32021+ 32022 ?
Answer:
2 may be the greatest one.
Answer:
12
Step-by-step explanation:
12
Inequalities part 2
I need help pls i dont understand
Step-by-step explanation:
For y/x to be as high as possible, y must have the highest possible value and x must have the lowest possible value. (12 and 6)
Hence, y/x < 12/6, which is 2.
For y/x to be as low as possible, y must have the lowest possible value and x must have the highest possible value (10 and 7)
Hence, y/x > 10/7.
Combining the 2 inequalities, we have 10/7 < y/x < 2.
You are going to open a certificate of deposit (CD) that earns simple interest. One bank offers an CD in which you must deposit 500 dollars for 3 years and 2% interest. Another bank offers a CD in which you deposit 250 dollars for 2 years with 3% interest. Which CD will earn more interest?
Answer:
i love this one 123465678891011121314
The case 1 (a certificate of deposit (CD) ) will earn more interest.
What is simple interest?Simple interest is the interest amount for a particular principal amount of money at some rate of interest.
Simple Interest is calculated using the following formula: SI = P × R × T, where P = Principal, R = Rate of Interest, and T = Time period.
Given
Case 1:
Principal p = $500
Time t = 3 years
Rate of interest r = 2%
Based on the given conditions
Simple Interest = \(\frac{prt}{100}\)
= \(\frac{500(2)(3)}{100}\)
= $30
Case 2:
Principal p = $250
Time t = 2 years
Rate of interest r = 3%
Based on the given conditions
Simple Interest = \(\frac{prt}{100}\)
= \(\frac{250(3)(2)}{100}\)
= $15
The case 1 CD will earn more interest.
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3. Which numbers are less than 15.162?
15.19
15.201
15.089
15.2
15.159
Answer: 15.089, 15.159
I need the t-table, domain and range, and it graphed
The domain of the function is all real numbers because there are no restrictions on the values of x. Therefore, the overall range of the function is {1} ∪ [3, ∞).
What is function?In mathematics, a function is a rule that assigns a unique output value to each input value. A function is typically denoted by a symbol, such as f(x), where f is the name of the function and x is the input variable. The output value of the function is denoted by f(x), which means "the value of the function f at x". A function takes input values from a set called the domain, and produces output values from a set called the range. The domain and range can be any set of numbers, such as the real numbers, integers, or even complex numbers.
Here,
The given function is:
f(x) =
1, x+2, x < -2
2, x²+2x+3, x > -2
To create a table of values, we can choose some values of x and plug them into the function to find the corresponding values of f(x):
x f(x)
-3 -1
-2 -2
-1 4
0 3
1 6
The domain of the function is all real numbers because there are no restrictions on the values of x.
The range of the function depends on the two cases:
For x < -2, the value of f(x) is always 1, so the range of f(x) in this case is {1}.
For x > -2, the value of f(x) is always greater than or equal to 3, so the range of f(x) in this case is [3, ∞).
To graph the function, we can plot the points from the table of values and connect them with lines:
|
20 ___|_____
| | \
15 | \
| \
10 | \
| \
5 | \
| \
0 |----------------\_____________
-4 -3 -2 -1 0 1 2 3
The graph consists of two parts: a horizontal line at y = 1 for x < -2, and a parabolic curve opening upwards for x > -2. The graph is continuous at x = -2, since both the constant and quadratic functions agree at this point.
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What will be the amount of the sum Rs 1200 for one and
half year at 40 percent of interest compounded
quarterly?
The amount of the sum Rs 1200 for one and a half year at 40 percent of interest compounded quarterly is Rs 1893.09.
The amount of the sum Rs 1200 for one and a half year at 40 percent of interest compounded quarterly can be calculated as follows:
Given, Principal = Rs 1200Time = 1.5 yearsInterest rate = 40% per annum, compounded quarterly
Let r be the quarterly rate of interest. Then we can convert the annual interest rate to quarterly interest rate using the following formula: \text{Annual interest rate} = (1 + \text{Quarterly rate})^4 - 1$$
Substituting the values, we get:0.40 = (1 + r)^4 - 1 Solving for r, we get:r = 0.095 or 9.5% per quarter
Now, we can use the formula for the amount of money after time t, compounded quarterly: $A = P \left( 1 + \frac{r}{4} \right)^{4t}
Substituting the values, we get:A = Rs 1200 x $\left(1 + \frac{0.095}{4} \right)^{4 \times 1.5}= Rs 1893.09
Therefore, the amount of the sum Rs 1200 for one and a half year at 40 percent of interest compounded quarterly is Rs 1893.09.
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Evaluate for a = 2, b = 3, and c = 4.
ab + c
Answer:
10
Step-by-step explanation:
Given;
a = 2
b = 3
c =4
ab+c
Solve;
Since a = 2, b = 3, and c = 4
Substitute
(2)(3)+4
6 +4
= 10
Answer = 10
~Learn with lenvy~
Answer:
10
Step-by-step explanation:
Given the following question:
\(a=2\)
\(b=3\)
\(c=4\)
\(ab+c\)
To find the answer we need to substitute the values in for the variables and then solve using PEMDAS.
\(ab+c\)
\(2\times3+4\)
\(2\times3=6\)
\(6+4\)
\(6+4=10\)
\(=10\)
Your answer is "10."
Hope this helps.
Simplify the expression: (3 -- 10)2 + 4 : 2
Answer:
-12 Use PEMDAS
Step-by-step explanation:
Do the operation in the parenthesis first to get (-7)2 + 4:2. Multiply -7 by 2 to get -14 +4:2. Divide 4 by 2 to get -14 + 2. Add -14 and 2 to get -12.
does the volume method length x width x height apply to all volume finding questions
Answer:
No.
Step-by-step explanation:
This only applies to solids like cubes and some prisms.
It does not apply to such solids are cylinders, pyramids, cones and triangular prisms. It will apply to a prism whose cross-section is a rectangle.
how is 3 4 5 the only pythagorean triple consisting of three consecutive integers
This happens because as we increase the values (from 3, 4, and 5) the increase in the squares is greater
How is 3, 4, and 5 the only pythagorean triple consisting of three consecutive integers?A pythagorean triple is a set of 3 numbers such that the sum of the squares of the two smaller ones is equal to the square of the larger one, here we have:
3² + 4² = 5²
9 + 16 = 25
25 = 25
Now, why we can't have another set of 3 consecutive numbers?
This happens because as we increase the values of the integers, more increases the values of the correspondent squares.
That also means that the distance (in units) between the largest value and the previous ones must increase, and that is why there aren't more pyhtagorean triples where all the digits are consecutive integers.
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