Answer:
34
Step-by-step explanation:
F(x) = 2x^3 - 7x + 1
Let x= 3
F(3) = 2* 3^3 - 7*3 + 1
= 2 * 27 -21+1
= 54 -21 + 1
= 34
Answer: 34
Step-by-step explanation:
When an observed difference between two groups on the dependent variable is attributed to the effect of the dependent variable through statistical hypothesis testing then we know that
it is unlikely that the difference would occur by chance alone
It is true that when difference on dependent variable is attributed to effect of that variable through statistical hypothesis testing then it is unlikely that the difference would occur by chance alone
A formal assertion about the nature of a phenomenon made within the constraints of a statistical model is known as a statistical hypothesis.
Statistical hypothesis is a description of the makeup of a population. A population parameter is frequently used to express it.
There are two statistical hypotheses used in hypothesis testing. The above-described null hypothesis (H0) is the first.
If it turns out that the null hypothesis is statistically invalid, an alternative hypothesis (Ha) for each H0 will be given preference. Depending on the research hypothesis, the Ha may be directed or nondirectional.
About the statement in the question,
It is improbable that an observed difference between two groups on the dependent variable would occur by chance alone when the difference is explained by the effect of the dependent variable through statistical hypothesis testing.
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Find the percent.
2% of 4,050 tiles is ________ tiles.
ASAP PLEASEEEEEE
Answer:
Step-by-step explanation:
=2/100×4050
=81
Hope it helped you.
Plz mark me brainliest.
Three lakes lost water during a drought. Lake Jensen lost five sixths of its water, Lake Parlow lost 85% of its water, and Lake Stockton lost two hundred forty six three hundredths of its water. Which lake lost the least amount of water?
Lake Jensen
Lake Parlow
Lake Stockton
All three lakes lost the same amount of water.
The least amount of water was lost at Lake Stockton. It's best to choose C.
Given that,
Three lakes lost water. Lake Stockton lost 246, 3 hundredths of its water, Lake Parlor lost 85% of its water, and Lake Jensen lost \(\frac{5}{6}\) of its water.
Percentage is calculated by multiplying the ratio of a material's composition to the total composition of a material by 100.
Here, the percentage of each lake following the draught is equal, i.e.
Lake Jensen = \(\frac{5}{6}\) =83.33%
Lake Parlor =85%
Lake Stockton =\(\frac{246}{300}\)=82%
Therefore, from obtaining a fraction we got the least amount of water was lost at Lake Stockton. It's best to choose C.
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Answer: Lake Stockton
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Multiply.
(2x+6)²
NEED ANSWER ASAPP
Answer:
4x² + 24x + 36
Step-by-step explanation:
(2x + 6)² = (2x + 6)(2x + 6) = 4x² + 12x + 12x + 36 = 4x² + 24x + 36
Why is it important to study the environment as a system?
Answer:
Step-by-step explanation:
Our environment is very important to us because it is where we live and share resources with other species. ... Environmental science enlightens us on how to conserve our environment in the face of increasing human population growth and anthropogenic activities that degrade natural resources and ecosystems. hope it help
Mr. Benson's statistics test scores are normally distributed with a mean score of 85 (2) and a standard deviation of 4 (0) Using the Empirical Rule, about 68% of the scores lie between which two values?
The requried about 68% of the scores lie between 81 and 89.
The Empirical Rule states that for a normal distribution, approximately 68% of the data falls within one standard deviation of the mean.
In this case, the mean is 85 and the standard deviation is 4, so one standard deviation above the mean is:
85 + 4 = 89
And one standard deviation below the mean is:
85 - 4 = 81
So about 68% of the scores lie between 81 and 89.
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Write an equation of the line passing through the point A(-6,5) that is perpendicular to the line y= 1/2x-7
Answer:
Below
Step-by-step explanation:
Line y = 1/2 x -7 is of the line-equation form y = mx = b where m = slope ....this slope is 1/2 a perpindicular slope is - 1/m ( ya just gotta remember that ) = - 1/ (1/2) = - 2
for the new line , point-slope form through the point (-6,5) would be
y - 5 = -2 ( x - - 6) simplifies to
y = - 2x -7
Please help being timed for test !
Last week's and this week's low temperatures are shown in the table below.
Low Temperatures for 5 Days This Week and Last Week
Low Temperatures
This Week (F)
4 10 6 9
Low Temperatures
Last Week (OF)
13 9 5 8
6
5
Which measures of center or variability are greater than 5 degrees? Select three choices
the mean of this week's temperatures
the mean of last week's temperatures
the range of this week's temperatures
the mean absolute deviation of this week's temperatures
the mean absolute deviation of last week's temperatures
Answer:
I think it B or C but hope I can help :)
Step-by-step explanation:
6, 12, 18 and 24 are the first four multiples of 6.
What are the next 2 multiples?
Answer:
30 and 36
Step-by-step explanation:
six times two equals 12
6 * 3 = 18
and six times four equals 24.
to get the next two multiples, You need to multiply 6 by 5, and then 6
6 * 5 = 30 and 6 * 6 = 36
elementary surveying two ridges b and c forms a valley having a at the bottom part in between the ridges. elevation difference between b nad c is 111..356 m. observing at point a, the angle of elevation is
the difference of elevation between a and b.Let AB = x, tan 36 = x/111.356 ,x = 111.356 tan 36= 64.39 m and Difference in elevation = 64.39m
We are given that two ridges B and C form a valley with a point A at the bottom part with an elevation difference of 111.356m between the ridges and and angle of elevation of 36 degrees at point A. To find the difference of elevation between A and B, we use the formula of tangent which is tan θ = Opposite/Adjacent. We substitute the values and solve for x, which is the elevation difference between A and B. So the difference in elevation between A and B is 64.39m.
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Find the area of a square with a side length of 1/4 inch
Answer: you will multiply the length of its base by its height.
Step-by-step explanation:
The area of square with side length 0f 1/4 inch is equals to 0.0625 square inch.
What is square ?
"A square is a regular quadrilateral, which has four equal sides and four equal angles. It can also be defined as a rectangle with two equal adjacent sides."
Formula used
Area of square = side × side
According to the question,
We have
Side length of the square = 1/4 inch
= 0.25 inch
Area of square = 0.25 × 0.25
= 0.0625 square inch
Hence, area of square is 0.0625 square inch.
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The number of users of the internet in a town increased by a factor of 1.01 every year from 2000 to 2010. The function below shows the number of internet users f(x) after x years from the year 2000: f(x) = 3000(1.01)x Which of the following is a reasonable domain for the function?
Answer:
0 ≤ x ≤ 10
Step-by-step explanation:
The domain is the possible values that the variable can take.
The statement "the number of internet users f(x) after x years from the year 2000" is telling us that the x-axis represents the number of years, so the domain of the function is the number of years from 2000 to 2010.
Number of years = 2010 - 2000 = 10 years
So we know that is at most 10 years; therefore
Since years can't be negative, we can also infer that x must be 0 or bigger than 0, so
Now we can combine both inequalities to find the reasonable domain of the function:
Let f(x) = 5x - 1 and g(x) = x2 + 3.
Find (f o g)(2).
Answer:
\(16\)
PLZ MARK AS BRAINLIEST IF THIS ANSWER HELPED YOU!
Step-by-step explanation:
\(f(2) = 5(2) - 1= 9\)
\(g(2) = 2^2 + 3 = 7\)
\((f \ \o \ g)(2) = f(2) + g(2) = 9 + 7 = 16\)
PLZ MARK AS BRAINLIEST IF THIS ANSWER HELPED YOU!
Find the area of the square below.
if im correct, its 9. But I want to double check since I haven't done this in a while!
Answer:
its 9 only
Step-by-step explanation:
cuz the formula of area of square is side²
Answer:
Yeah it's 9. Bcs the area of the square is *side × side*
Click on the graphic below until RA TU at point Q is displayed. Plzzzzz help
Answer:
I think its
T
R--------Q----------A
U
Step-by-step explanation:
Because RA as a line bisects TU
Fill in the table 'using this function rule.
y = -5x+2
x
-1
0
1
2
y
0
0
0
X
4
S
Answer:
7, 2, -3, -8
Step-by-step explanation:
y = -5x + 2 Substitute in -1 for x
y = -5(-1) + 2
y = 5 + 2
y = 7
y = -5x + 2 Substitute in 0 for x
y = -5(0) + 2
y = 0 + 2
y = 2
y = -5 + 2 substitutes in 1 for x
y = -5(1) + 2
y = -5 + 2
y = -3
y = -5x + 2 Substitute in 2 for x
y = -5(2) + 2
y = -10 + 2
y = -8
Helping in the name of Jesus.
John typed a 48 word paragraph in 2/3 minute. What is the typing speed in words per minute
Answer: The answer is: " 72 words per minute. "
___________________________
Step-by-step explanation:
___________________________
This is a "unit rate" problem.
We want to solve for/ find the number of words PER single minute.
___________________________
Given 48 words per (2/3) minute;
How many words per (one) minute?
__________________________
The answer is {48 ÷ (2/3) } words per minute:
Note: dividing by a number is the same as multiplying by the reciprocal (inverse) of that particular number:
Hence:
__________________________
The answer is {48 * (3/2) } words per minute:
__________________________
Write as:
" \(\frac{48}{1} *\frac{3}{2}\) " ;
__________________________
The "48" can be changed to "24" ; and the "2" can be changed to "1" ;
→ {Since: "48 ÷ 2 = 24 "} ;
___________________________
And we have:
___________________________
" \(\frac{24}{1} *\frac{3}{1} = 24 * 3 = 72\) " ;
___________________________
The answer is: " 72 words per minute ."
___________________________
Hope this is helpful to you!
___________________________
Please help with this math question!
Answer:
5. Proofs attached to answer
Step-by-step explanation:
Proofs attached to answer
Write parametric equations of the line 2x - y = 3.
a. X = 1, y = 2t - 2
c.
X = 1, y = 3t-2
b. X= 1, y = 2t-3
d.
1
1
X = 1,y= =
2
1.9 -
3
Please select the best answer from the choices provided
A
OB
С
OD
11. Descartes is thinking of a number that when he multiplies it by 9, he gets the number he is thinking of. What number is Descartes thinking of? brainly
Descartes must be thinking of the number 0.
Now, Let's call the number Descartes is thinking of "x".
Hence, According to the problem, if Descartes multiplies "x" by 9, he gets "x" back. In other words, 9 times "x" is equal to "x".
So we can write this as an equation:
⇒ 9x = x
Now we need to solve for "x". We can start by subtracting "x" from both sides of the equation:
⇒ 9x - x = 0
⇒ 8x = 0
divide both sides by 8 to get:
⇒ x = 0
Thus, Descartes must be thinking of the number 0.
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Solve equation. What is the solution set
-4(z-2)+4=21-(z-3)
Answer:
z=-75/17
Step-by-step explanation:
Expand this equation:
-4z+8+4=-21z-63
-4z+21z=-63-8-4
17z=-75
z=-75/17
For which triangle does the Pythagorean Theorem
express the relationship between the lengths of its three
sides?
A
B
C
D
Pythagorean theorem is represented by triangle B.
Which triangle express the relationships according to Pythagorean theorem?
In this question we find four cases of triangle, of which we must determine what triangle can be explained by Pythagorean theorem. This theorem offers a relationship between the three sides of the triangle:
r² = x² + y²
Where:
x, y - Legsr - Hypotenuse.Please notice that hypotenuse is the longest side of the triangle. Graphically speaking, there is a right triangle, that is, a triangle with one right angle. Then, triangle B express the relationship according to Pythagorean theorem.
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Solve for x 15+5x=20x
Answer:
Step-by-step explanation:
15+5x=20x
-5x -5x => Subtract 5x from each side
You get
15 = 15x
Divide both sides by 15
1=x
The length of a rectangle is 6 more than its width. The perimeter is 48 inches. What is the length?
Answer:
\(15\) inches
Step-by-step explanation:
Let the width be x.
Length = \(6+x\)
Perimeter = Length + Length + Breadth + Breadth
Perimeter = \((6+x)+(6+x)+x+x=48\)
\(6+x+6+x+x+x=48\)
\(4x+12=48\)
Subtract 12 from both sides:
\(4x+12-12=48-12\)
\(4x=36\)
Divide both sides by 4:
\(\frac{4x}{4}=\frac{36}{4}\)
\(x=9\) (Width)
Length = \(9+6=15\) inches.
Answer:
l = 15 inches
Step-by-step explanation:
l = w + 6
p = 2l + 2w
substitute l into equation p
48 = 2(w + 6) + 2w
distribute the 2 into the parentheses
48 = 2w + 12 + 2w
combine like terms
48 = 4w + 12
subtract 12 from both sides
36 = 4w
divide by 4
9 = w
plug w into equation l
(9) + 6 = 15
l = 15 inches
The radius of a circle is 4 miles. What is the length of a 45° arc?
45°
r=4 mi
The length of a 45° arc with a radius of 4 miles is approximately 3.14 miles, calculated using the formula for arc length.
To determine the length of a 45° arc given a radius of 4 miles, we can use the formula: Arc length = (angle measure / 360°) x 2πr, where r is the radius of the circle and π is a constant equal to approximately 3.14.
Substituting the given values into the formula, we get: Arc length = (45° / 360°) x 2π(4 mi)Arc length = (1/8) x 2π(4 mi)Arc length = (1/8) x 8π Arc length = π
The length of the 45° arc is approximately 3.14 miles.
Summary: To find the length of a 45° arc of a circle, we use the formula: Arc length = (angle measure / 360°) x 2πr. Given a radius of 4 miles, we can substitute the values into the formula to get the length of the 45° arc, which is approximately 3.14 miles.
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Royell sold his shoes and put $1000 into a savings account with an interest rate of 5%. How much money will be in his account if he doesn't touch it after 7 years?
A $20,000
B $700
C $1,350
D $1,500
Answer:
C.
Step-by-step explanation:
(1,000)(0.05)(7)
I = $350
1,000 + 350
=$1,350
which of the following is equivalent to x^2 -5x +6
Hello!
x² - 5x + 6
= (x² - 2x) + (-3x + 6)
= x(x - 2) - 3(x - 2)
= (x - 2)(x - 3)
Coursera gradient descent is an algorithm for finding values of parameters w and b that minimize the cost function j. True or False
Gradient Descent, a first-order iterative optimization algorithm. That means growing up. It is true.
The learning factor is always a positive number, so if you subtract W from a negative number, you get a new larger (more positive) W value.
The most popular optimization algorithm in machine learning and deep learning is gradient descent. It is a first-order optimization algorithm. This means that only the first derivative is taken into account when updating the parameters.
Gradient Descent (GD) is a first-order iterative optimization algorithm used to find the local minimum/maximum of a given function. This method is commonly used in machine learning (ML) and deep learning (DL) to minimize cost/loss functions (such as linear regression).
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1. Find the slope and the y-intercept of each equation.
a. y = 2x - 6
m=
b=
The equation y = 2x - 6 is a line in the form known as Slope-Intercept Form. This form organizes the equation so that you can easily discern the y-intercept and slope.
Slope-intercept form is y = mx + b. So here, m = 2, b = -6.
2
1
-1
-2
Determine the period.
2 4
6 8 10 12 14
Acellus
According to the information we can infer that the period of the graph is 8.
How to determine the period of the graph?To determine the period of the graph we have to consider that the period of a grah is the distance between rigdes. So, in this case we have to count what is the difference between each rigde.
In this case, the distance between rigdes is 8 units because the first is located in the line 1 an the second is located in the line 9. So we can conclude that the period of the graph is 8.
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