Answer:
Step-by-step explanation:
answerrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr =====8
Answer:
less than
Step-by-step explanation:
As you can see, the funtion is adding 6 to x to get y. 0 + 6 = 6. 2 + 6 = 8, etc.
The statement is declaring that the funtion is adding 4 to x to get y, but it clearly is adding 6 to x to get y.
Hope this helps :)
What is y=x2+6x+3 in vertex form?
Answer:
y = (x+3)2 - 12.
Step-by-step explanation:
Answer:
y = (x + 3)^2 - 6.
Step-by-step explanation:
y=x^2+6x+3
y = (x + 3)^2 - 9 + 3
y = (x + 3)^2 - 6.
I WILL MARK BRANLIEST Emma was solving the equation t - 4 = 16. She said, "I'm looking for a number t that is 4 less than 16. So t = 12." Which statement best describes the
flaw in Emma's reasoning?
O Emma's answer is right but she should just subtract 4 from both sides of the equation.
O Emma's answer is wrong but she thought about the equation correctly.
O Emma is confused about which number the 4 is being subtracted from
O Emma should subtract the 16 from the 4 instead of the 4 from the 16.
Answer:
second answer
Step-by-step explanation:
Answer:
C. Emma is confused about which number the 4 is being subtracted from
Step-by-step explanation:
The answer is C.
Emma would be correct if 4 was being added or if the equation would be set up so it reads 16-4 = t. However, she is wrong because 12-4 does not equal 16.
Find the area of each triangle. Round intermediate values to the nearest 10th. use the rounded value to calculate the next value. Round your final answer to the nearest 10th.
Answer:
8.3\(cm^{3}\)
Step-by-step explanation:
What is the value for f(x) =0
The function can be graphed to demonstrate this further. On the graph where f(x)=0, the curve is just the x-axis, which always has the same y-value of 0.
How to find the domain of a function ?Domaine:The domain of a function is the set of all possible inputs for the function. For example, the domain of f(x)=x² is all real numbers, and the domain of g(x)=1/x is all real numbers except for x=0. We can also define special functions whose domains are more limited.
Given the function f(x)=0,
since this is a constant function (that is, for any value of x, f(x)=0, the limit of the function as x→a, where a is any real number, is equal to 0.
More specifically, as a constant function,f(x) maintains the same value for any x. f(1)=f(2)=f(π)=f(e)=f(−(1258567)/(44))=0. Further, as a constant function, f(x) is by definition continuous throughout its domain. Note, however, that if one arrives at a constant function via division or multiplication of non-constant functions (for example, (8x)/(x), there will still exist a discontinuity where the original denominator was0).
Graphing the function will further prove this point. On the graph f(x)=0, the curve is simply the x-axis, which maintains a constant y-value of 0 no matter the x-value.
To learn about more about the domain visit: brainly.com/question/28135761 #SPJ1.
suppose an investigator wishes to estimate the sample size necessary to detect a 10 mg/dl difference in cholesterol level in a diet intervention group compared to a control group. the standard deviation from past data is estimated to be 50 mg/dl. if power is set at 80% and alpha is set at 0.05, how many patients are required per group?
Rounding up to the nearest whole number, we need at least 78 patients per group to detect a 10 mg/dl difference in cholesterol level with a power of 80% and an alpha level of 0.05.
To estimate the sample size necessary to detect a 10 mg/dl difference in cholesterol level between a diet intervention group and a control group with a standard deviation of 50 mg/dl, a power of 80%, and an alpha level of 0.05, we can use a formula:
n = [(Z_alpha/2 + Z_beta)^2 * (σ^2)] / (d^2)
where n is the sample size per group, Z_alpha/2 is the critical value of the standard normal distribution corresponding to an alpha level of 0.05/2 = 0.025 (which is 1.96), Z_beta is the critical value of the standard normal distribution corresponding to a power of 80% (which is 0.84), σ is the standard deviation (which is 50 mg/dl), and d is the difference in means that we want to detect (which is 10 mg/dl).
Substituting these values into the formula, we get:
n = [(1.96 + 0.84)^2 * (50)^2] / (10)^2
n = 77.4
Rounding up to the nearest whole number, we need at least 78 patients per group to detect a 10 mg/dl difference in cholesterol level with a power of 80% and an alpha level of 0.05.
To know more about Rounding up visit:
https://brainly.com/question/29238853
#SPJ11
Similar to 3.5.31 in Rogawski/Adams. Find f^(40) (x) H f(x) = x^-3 by first finding the general solution. (Use symbolic notation and fractions where needed)
The general solution of f(x) is: \(f(x) = A + 1/2 x\)
We are given that:
\(f(x) H f(x) = x^{-3}\)
where H denotes the Hilbert transform.
To find \(f^{40} (x)\), we first need to find the general solution of f(x).
We can start by applying the Hilbert transform to both sides of the equation:
\(H[f(x) H f(x)] = H[x^{-3} ]\)
Using the properties of the Hilbert transform, we can simplify the left-hand side:
\(f(x) = -H^2[f(x)] - x^{-3}\)
where H^2[f(x)] denotes the double Hilbert transform of f(x).
Next, we can apply the Hilbert transform again to both sides:
\(H[f(x)] = -H^3[f(x)] - H[x^{-3} ]\)
Using the fact that\(H^2[f(x)] = -f(x)\), we can simplify the left-hand side:
\(-H[f(x)] = -H^3[f(x)] - H[x^{-3} ]\)
Multiplying both sides by -1, we get:
\(H[f(x)] = H^3[f(x)] + H[x^{-3} ]\)
Using the fact that \(H^3[f(x)] = -H[f(x)],\) we can simplify the equation further:
\(2H[f(x)] = H[x^{-3} ]\)
Applying the Hilbert transform once more, we get:
\(f(x) = -1/2 H^2[x^{-3} ]\)
Using the fact that \(H^2[x^{-3} ] = -x\), we can simplify the right-hand side:
\(f(x) = 1/2 x\)
Now, we can find f^(40)(x) by differentiating f(x) 40 times:
\(f(x) = 1/2 x\\f'(x) = 1/2\\f''(x) = 0\\f'''(x) = 0\\...\)
\(f^{40} (x) = 0\)
Therefore, the general solution of f(x) is:
\(f(x) = A + 1/2 x\)
where A is a constant.
And, the 40th derivative of f(x) is zero.
It's important to check that the general solution satisfies the original equation. In this instance, we can confirm:
\(f(x) H f(x) = (A + 1/2 x) H (A + 1/2 x) = x^{-3}\)
which is indeed satisfied if we set A = 0.
for such more question on derivative
https://brainly.com/question/23819325
#SPJ4
Work out (3.8 x 10⁴) × (2.7×10⁻⁸)
Give your answer in standard form.
\(3.8\times 10^4\qquad \times\qquad 2.7\times10^{-8}\qquad \implies \qquad (3.8\cdot 2.7)\times 10^4\times10^{-8} \\\\\\ 10.26\times 10^{4-8}\implies 10.26\times 10^{-4}\implies 10.26\times \cfrac{1}{10^4} \\\\\\ \cfrac{10.26}{10^4}\implies \cfrac{10.26}{1\underline{0000}}\implies 0.\underline{0010}26\)
Write an equation of the line passing through point P (0,0) that is perpendicular to the line y= -9x-1
The graph shows the amount the of food Ian's rabbits eat each week which equation can be used to find the number
A. y = 15x
B. y = 60x
C. y = 60x+10
D. y = 120x
8. P(-3, -7) and (3,-5) fine the midpoint
Answer: 0,-6
Step-by-step explanation:
Midpoint Formula x1+x2/2, y1+y2/2
-3+3= 0/2=0 -7+(-5)= -12/2 = -6
0,-6
16. If x and y are positive integers such that the greatest
common factor of xy2 and xy” is 50, then which of
the following could equal y ?
F. 50
G. 25
H. 10
J. 5
K. 2
use weka to develop a linear regression model (use linearregression in weka) with air quality as the response variable. (be sure to set the parameter attribute selection method to no attribute selection so that weka does not discard any of the attributes.) what is the regression equation?
The definition of a regression equation is an equation used to assess whether a relationship exists between two sets of data.
What is the regression equation?
In statistics, a regression equation is used to determine whether or not there is a link between two sets of data. For instance, you might discover that a child grows roughly 3 inches a year if you measure their height each year. A regression equation can be used to model the three-inch growth tendency. In reality, most aspects of the real world—from gas prices to hurricanes—can be described using an equation of some form, which enables us to foretell the future.
The "best fit" line for your data is a regression line. In essence, you design a line that most accurately depicts the data points. It resembles the average of the points' locations. The regression line in a linear regression is a completely straight line:
An equation is used to express the regression line. The formula in this instance is 2.2923x + 4624. The line would be a rough approximation of your data if you plotted the equation -2.2923x + 4624.4.
It is unusual for all of the data points to actually lie on the regression line. The dots in the image above are a little dispersed around the line. The dots in the following picture are on the line. Polynomial regression, which fits the points to a polynomial equation, produced the curved curvature of this line.
To learn more about Polynomial regression click here:
brainly.com/question/28490882
#SPJ4
Factor each polynomial by grouping 8n^3 - 7n^2 + 56n - 49
Answer:
\( = - 7 {n}^{2} - 49 + 8 {n}^{3} + 56n \\ = - 7( {n}^{2} + 7) + 8n( {n}^{2} + 7) \\ = \boxed{ ( {n}^{2} + 7)(8n -7 )}\)
I NEED HELP ON THIS FAST
4x+1/20x³ + 2⁹x²³-10X
Answer: \(5x^{2} +6x\)\(-4\)
Step-by-step explanation:
Synthetic division
Which pair of lines are perpendicular
Answer:
D
Step-by-step explanation:
Which of the following is not a condition that must be met before you can use
the quadratic formula to find the solutions of an equation?
A. The coefficient of the x²-term must be positive.
B. There can be no term whose degree is higher than 2.
C. One side of the equation must be zero.
D. The coefficient of the x²-term can't be zero.
Answer:
"The coefficient of x²-term must be positive"
in other words,
A is correct
Step-by-step explanation:
Answer:
D. The coefficient of the x²-term can't be zero.
Step-by-step explanation:
I hope it's right
If it takes 5 machines 5 minutes to make 5 widgets, how long would it take 100 machines to make 100 widgets?
A. 1 minute
B. 5 minutes
C. 10 minutes
D. 15 minutes
E. 100 minutes
Which expression has the greatest value? A-2 - 4, +16 4+1 B-2-(-4) +16 C -2 +4 +(-16) D 2-4-(-16)
option B
hope it helps...!!!
10x + 60 = 9x - 30
\(10x + 60 = 9 \times - 30 \\ \)
Answer:
x = - 90
Step-by-step explanation:
Given
10x + 60 = 9x - 30 ( subtract 9x from both sides )
x + 60 = - 30 ( subtract 60 from both sides )
x = - 90
james rode his bike 7 yards in 3 seconds. set up the table with the information you know. yards seconds 7 3 you got it! what is the missing value? solve on paper if you need to. yards seconds 7 3 120
The missing value after solving is 280 seconds .
Given :
james rode his bike 7 yards in 3 seconds. set up the table with the information you know. yards seconds 7 3 you got it!
Seconds :
The second ( s or sec ) is the International System of Units ( SI ) unit of time measurement.
Table :
yards seconds
7 3
120 x
we need to find x :
1 yard = 7/3 seconds
120 yards = 7 / 3 * 120 seconds
= 7 / 1 * 40 seconds
= 7 * 40 seconds
= 280 seconds.
Learn more about the missing value here:
https://brainly.com/question/16579022
#SPJ4
Given that z is a standard normal random variable, compute the following probabilities. calculate P(1
You can approximate the probability using the standard normal distribution table by looking up the closest values for Φ(2) and Φ(1).
To calculate the probability P(1 < z < 2) for a standard normal random variable, we can use the cumulative distribution function (CDF) of the standard normal distribution.
The CDF gives us the probability that a standard normal random variable is less than or equal to a given value. We can use this information to calculate the probability between two values.
Let's denote the CDF of the standard normal distribution as Φ(z). The probability P(1 < z < 2) can be calculated as follows:
P(1 < z < 2) = Φ(2) - Φ(1)
To calculate this, we need to look up the values of Φ(2) and Φ(1) from a standard normal distribution table or use a calculator/computer software. However, since I don't have access to real-time computations in this environment, I am unable to provide the exact numerical value.
But you can use statistical software or online calculators to find the precise value. Alternatively, you can approximate the probability using the standard normal distribution table by looking up the closest values for Φ(2) and Φ(1).
Learn more about probability from
https://brainly.com/question/30390037
#SPJ11
a light bulb consumes 960 watt-hours per day. how long does it take to consume 3120 watt-hours
if A={1,2,3,4} and B={3,4,5,6} are two sets,find (A-B).
Step-by-step explanation:
\((A-B) = ( - 2, \: - 2, \: - 2, \: - 2)\)
Which statement is not true about the data shown by the box plot below?
5 number summary: 23, 40, 55, 65, 79
A. The median of the data is 55.
B. The interquartile range is 55.
C. Three fourths of the data is less than 65.
D. The median of the upper half of the data is 65.
Reset Selection
Answer:
B. The interquartile range is 55
Step-by-step explanation:
the interquartile range is Q3 minus Q1, you would get 15 ,not 55. So B is the answer to your question
Answer:
B. The interquartile range is 55.
Step-by-step explanation:
In this problem, I refer to the right part of the box as the median of the upper half and the left part of the box as the median of the lower half.
The median of the data is going to be the middle line of the box and whisker plot. The middle line lies on 55, so the median is 55.
Choice A is true
The interquartile range is the right end of the box subtracted from the left end of the box. The right end of the box is 65. The left end of the box is 40. Subtracting the left end from the right end, we get 25.
Choice B is false
3/4 of the data will be where we see the right end of the box. The right end of the box is at 65. So, 3/4 of the data is less than 65.
Note: 1/4 of the data is less than the left side of the box at 40. 1/2 of the data is less than the median of the box which is at 55.
Choice C is true
The median of the upper half is the right end which is 65.
Note: The median of the lower half is 40.
Choice D is true
A car show is making a model of 1980 Ford truck. The model is 10 inches long. If the model truck has a scale of 3 in: 2ft, how tall is the actual truck?
Answer:
Step-by-step explanation:
3 inches is 2 feet
10 inches is 6.66 feet (no this isn't a joke)
If a field's length is 75m and breadth is 50m then what is the area?
Answer:
3750m^2 is it's area hope it helps
Answer:
3750m²
Step-by-step explanation:
75x50=3750
Please help 60 points for a rapid answer-In the figure below which of the following is true in circle E?
Answer:
all 3 options are true : A, B, C
Step-by-step explanation:
warning : it has come to my attention that some testing systems have an incorrect answer stored as right answer for this problem.
they say that A and C are correct.
but I am going to show you that if A and C are correct, then also B must be correct.
therefore, my given answer above is the actual correct answer (no matter what the test systems say).
originally the information about the alignment of the point F in relation to point E was missing.
therefore, I considered both options :
1. F is on the same vertical line as E.
2. F is not on the same vertical line as E.
because of optical reasons (and the - incomplete - expected correct answers of A and C confirm that) I used the 1. assumption for the provided answer :
the vertical line of EF is like a mirror between the left and the right half of the picture.
A is mirrored across the vertical line resulting in B. and vice versa.
the same for C and D.
this leads to the effect that all 3 given congruence relationships are true.
if we consider assumption 2, none of the 3 answer options could be true.
but if the assumptions are true, then all 3 options have to be true.
now, for the "why" :
remember what congruence means :
both shapes, after turning and rotating, can be laid on top of each other, and nothing "sticks out", they are covering each other perfectly.
for that to be possible, both shapes must have the same basic structure (like number of sides and vertices), both shapes must have the same side lengths and also equally sized angles.
so, when EF is a mirror, then each side is an exact copy of the other, just left/right being turned.
therefore, yes absolutely, CAD is congruent with CBD. and ACB is congruent to ADB.
but do you notice something ?
both mentioned triangles on the left side contain the side AC, and both triangles in the right side contain the side BD.
now, if the triangles are congruent, that means that each of the 3 sides must have an equally long corresponding side in the other triangle.
therefore, AC must be equal to BD.
and that means that AC is congruent to BD.
because lines have no other congruent criteria - only the lengths must be identical.
Is 16=3 one, no, or many solutions?
And if the lines were graphed, would they be the same line, intersecting, or parallel
Answer:
No solutions; parallel
Step-by-step explanation:
The equations x=16 and x=3 both have a slope of 0. So when graphed, they would be parallel and there are no solutions between parallel lines.
Find the zeros for the polynomial function and give the multiplicity for each zero. State whether the graph crosses the x-axis or touches the x-axis and turns around, at each zero. f(x)=2(x 2
+3)(x+1) 2
−3, multiplicity 1 , crosses the x-axis; −1, multiplicity 2 , crosses the x-axis None −1, multiplicity 2 , touches the x-axis and turns around -3, multiplicity 1 , crosses the x-axis; −1, multiplicity 2 , touches the x-axis and turns around. −1, multiplicity 2 , crosses the x-axis
The polynomial function \(\(f(x) = 2(x^2+3)(x+1)^2\)\) has zeros at -3 with multiplicity 1, and -1 with multiplicity 2. The graph of the function crosses the x-axis at -3 and -1.
To find the zeros and their multiplicities, we set \(\(f(x)\)\) equal to zero and solve for \(\(x\).\)
Setting \(\(f(x) = 0\),\) we have:
\(\[2(x^2+3)(x+1)^2 = 0\]\)
Since the product of two factors is zero, at least one of the factors must be zero. Thus, we solve for \(\(x\)\) in each factor separately:
1. \(\(x^2 + 3 = 0\):\)
This equation does not have real solutions since the square of a real number is always non-negative. Therefore, this factor does not contribute any real zeros.
2. \(\(x + 1 = 0\):\)
Solving for \(\(x\), we find \(x = -1\).\) This gives us a zero at -1 with multiplicity 1.
Since the factor \(\((x+1)^2\)\) is squared, the zero -1 has a multiplicity of 2.
Therefore, the zeros for the polynomial function are -3 with multiplicity 1 and -1 with multiplicity 2. The graph of the function crosses the x-axis at both zeros.
To learn more about polynomial function click here: brainly.com/question/29054660
#SPJ11
7(3 + 4y) - 15y = 73
( Multi-step equations)
show work please and thank you
Answer:
Step-by-step explanation:
7(3+4y)-15y=73
21 plus 28y-15y=73
21 plus 13y = 73
13y=51
y=4
Step-by-step explanation:
Step 1: Multiply the 7 into the bracket.(make sure that your signs are correct)
Step 2: Minus the 21 from the 73.( Because when you take a value over the equal sign the value's sign changes)
Step 3: Minus 15y from 28y.
Step 4: Divide 52 by 13( because when you take the 13 over it divides ,because on the other side lf the equal the 13 multiples with the y)