Answer:
im pretty sure #9 is just y=7x... it should be parallel with y=7x-3 since it has y intercept of 0 rather than -3.
In the multiple regression equation, the symbol b stands for the. A) partial slope. B) slope of X and Y C) beta slop of X and Z D) Y-intercept.
In the multiple regression equation, the symbol b represents the partial slope.
In multiple regression analysis, the goal is to examine the relationship between a dependent variable (Y) and multiple independent variables (X1, X2, X3, etc.). The multiple regression equation can be expressed as:
Y = b0 + b1*X1 + b2*X2 + b3*X3 + ...
In this equation, the symbol b is used to represent the regression coefficients or slopes associated with each independent variable. Specifically, each b coefficient represents the change in the dependent variable (Y) associated with a one-unit change in the corresponding independent variable, while holding all other independent variables constant. Therefore, b is the partial slope of the specific independent variable, indicating the direction and magnitude of the relationship between that independent variable and the dependent variable.
Option A, "partial slope," correctly describes the role of the symbol b in the multiple regression equation. The slope of X and Y (Option B) refers to the simple regression coefficient in a simple linear regression equation with only one independent variable. Option C mentions the beta slope of X and Z, which is not a standard terminology. Option D, Y-intercept, represents the value of Y when all independent variables are set to zero, and it is denoted by b0 in the multiple regression equation.
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A baker has 2 1/4 cups of blueberries to make three batches of muffins. How many cups of blueberries should the baker put into each batch?
Answer:
0.75
Step-by-step explanation:
To answer this question you need to divide 2 1/4 by 3. To make it easier turn 2 1/4 to 2.25 because .25 = 1/4.
A farmers has 17 sheep and all but nine die. How many are left?
Answer:
9 sheeps.
Step-by-step explanation:
Note the usage of words.
If you remove "but nine", you will be left with "all... die", which means that he will have 0 sheep. However, the usage of 9 implies that there are some remaining; The number attached suggest the amount left.
9 sheep are left.
~
Answer:
9
Step-by-step explanation:
I need help with thid
Answer:
10 cm
Step-by-step explanation:
a sample from a refuse deposit near the strait of magellan had 60% of the carbon-14 of a contemporary sample. how old was the sample. round to the next whole year.
The age of the decaying sample according to the decay formula is 42,009 years.
The rate of radioactive carbon-14 decay depends on the function
\(A(t) = A_{0} e^{-0.0001216t}\)
where \(A_{0}\) is the quantity found in living plants and animals, t is in years, and is the age.
60% of the carbon-14 of a current-day sample was present in a sample taken from a refuse deposit close to the Strait of Magellan. We need to evaluate the age of the sample,
A = 60 % of \(A_{0}\) = (3/5)\(A_{0}\)
Putting this in the decay equation, we have,
\(\frac{3}{5} A_{0} = A_{0} e^{-0.0001216t}\\\\ 0.6= e^{-0.0001216t}\\ \\ln0.6 = -0.00001216t\\\\-0.51082 = -0.00001216t\\\\t = 42,008.68\)
Thus, the age of the sample is 42,009 years.
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A school needs 4500 paperclips which are sold in boxes of 200 how many boxes must the school buy
Answer:
23 there will be 100 paperclips leftover
See attached picture, is there a way to enter equations or algebraic symbols?
SOLUTIONS
Solve a given equations or algebraic symbols?
\(\begin{gathered} f(x)=x^2+2x \\ g(x)=1-x^2 \end{gathered}\)(A)
\(\begin{gathered} (f+g)(x)=(x^2+2x)+(1-x^2) \\ collect\text{ like terms} \\ x^2-x^2+2x+1 \\ (f+g)(x^)=2x+1 \end{gathered}\)(B)
\(\begin{gathered} (f-g)(x)=(x^2+2x)-(1-x^2) \\ =x^2+2x-1+x^2 \\ =x^2+x^2+2x-1 \\ (f-g)(x)=2x^2+2x-1 \end{gathered}\)(C)
\(\begin{gathered} fg(x)=(x^2+2x)(1-x^2) \\ =x^2-x^4+2x-2x^3 \\ fg(x)=-x^4-2x^3+x^2+2x \end{gathered}\)(D)
\(\begin{gathered} \frac{f}{g}(x)=(x^2+2x)\div(1-x^2) \\ =\frac{x^2+2x}{1-x^2} \end{gathered}\)If you divided 58 objects into sets of 10, how many sets of 10 could you make, and how many are left over?
Answer:
5 SETS OF 10 WE CAN MAKE, 8 OBJECTS WILL LEFT.
Step-by-step explanation:
Answer:
We can Make 5 sets of 10 and have 8 left over :)
Step-by-step explanation:
we have 58 objects and we make them into sets of 10
1 set=10
1 set 2 set 3 set 4 set 5 set | 1 one 2 one 3 one 4 one 5 one 6 one 7 () () () () () | one 8 one
can i get brainliest
Which of the following are true statements? Select all that apply.
All integers are rational numbers.
Repeating decimals are not rational numbers.
StartFraction 715 over negative 14 EndFractionis not a rational number.
Terminating decimals are rational numbers.
0.278254….. is a terminating decimal, therefore it is a rational number.
Answer:
A . All integers are rational numbers.
D . Terminating decimals are rational numbers
E 0.278254….. is a terminating decimal, therefore it is a rational number.
Step-by-step explanation:
Please mark brainiest please
Sam decides to build a square garden. if the area of the garden is 9x2 − 24x 16 square feet, what is the length of one side of the garden? (3x 4) feet (3x − 4) feet (4x − 3) feet (4x 3) feet
Using the Factor Theorem, the length of one side of the garden is:
(3x - 4) feet.
What is the Factor Theorem?The Factor Theorem states that a polynomial function with roots \(x_1, x_2, \codts, x_n\) is given by:
\(f(x) = a(x - x_1)(x - x_2) \cdots (x - x_n)\)
In which a is the leading coefficient.
The area of a rectangle is given by the multiplication of it's dimensions. In this problem, it is given by:
A = 9x² - 24x + 16.
The root of 9x² - 24x + 16 = 0 is x = 4/3 with multiplicity 2, hence:
\(x_1 = x_2 = \frac{4}{3}\)
Hence the area can be written as:
\(A = 9\left(x - \frac{4}{3}\right) \times \left(x - \frac{4}{3}\right)\)
Then, to find one side:
9(x - 4/3) = 9x - 12 = 3(3x - 4).
Hence (3x - 4) feet is one side.
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Please help. I need the help.
Answer: Annalise says that Philip will earn $320 more at First Bank than at GrandBank.
Step-by-step explanation:
Formula for Simple interest = Principal × Rate × Time
At GrandBank, the simple Interest will be:
= $2000 × 6% × 8
= $2000 × 0.06 × 8
= $960
At First Bank, the Simple interest will be:
= $2000 × 8% × 8
= $2000 × 0.08 × 8
= $1280
Based on the above, Philip will earn ($1280 - $960) = $320 more at First Bank.
Im confused????? I think its 9/16 is it??
Answer:
yes indeed it is ma'am or by if u trans like Lil Nas X
Answer:
Yes it is
Step-by-step explanation:
In a circle whose center is O, arc AB contains 100. Find the number of degrees in angle ABO. WILL MARK BRAINLIEST FOR BEST ANSWER A)50 B)40 C)65 D)60
Answer:
It is so easy u should get this right.
First draw a circle and there is an arc that is like forming a triangle inside a circle and then ab angle is 100 degree and outside is the center of the circle. And since u try to find how much is outside it most likely means that 100-60=40
so it b 40.
Step-by-step explanation:
The number of degrees in ∠ABO is 50°. Therefore, option A is the correct answer.
Given that, in a circle whose centre is O, arc AB contains 100°.
We need to find the number of degrees in ∠ABO.
How are angles and arcs related?An arc of a circle is a section of the circumference of the circle between two radii. A central angle of a circle is an angle between two radii with the vertex at the centre. The central angle of an arc is the central angle subtended by the arc. The measure of an arc is the measure of its central angle.
According to the theorem ∠ABO=1/2 × arc AB.
So, ∠ABO=1/2 × 100°=50°
The number of degrees in ∠ABO is 50°. Therefore, option A is the correct answer.
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48. Amari is observing a woodpecker near the top of a tree,
as shown in the diagram below. What is the measure of
angle x, the angle of elevation, rounded to the nearest
degree?
bird
201
36 n
Here x is the angle of the elevation and the value of x is 31 degrees.
We have given that,
Amari is observing a woodpecker near the top of a tree,
as shown in the diagram given.
We have to determine,
The measure of angle x, the angle of elevation, is rounded to the nearest degree.
What is the formula for tan theta?\(tan(\theta)=\frac{Opposite \ side}{Hypotenuse}\)
From the diagram,
Opposite side=20ft
Adjacent side=36ft
Use this value of the above formula.
So we get,
\(tan(\theta)=\frac{20}{36} \\\\tan(x)=5/9\\\\tan(x)=0.55\\x=tan^{-1}(0.55)\\x=31.51^0\)
Here x is the angle of the elevation and the value of x is 31 degrees.
Therefore the value of x is 31.
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PLEASE HELP URGENT DO NOT WASTE ANSWERS GEOMETRY WILL MARK THE BRAINLIEST
Answer:
B
Step-by-step explanation:
This is because to find the angle you must add up the other two angles.
A is at 0 radians with coordinates (1, 0) on the unit circle. Point B is the result of
point A rotating - 5π/4 radians. Name two other angles of rotation that take A to B. At least one must be negative. Explain your reasoning.
The two other angles of rotation that take A to B are
3π/4 radians-13π/4 radiansHow to find the two other anglesIf we wish to rotate point A on the unit circle by a negative 5π/4 radians, one method is to begin at point A and proceed clockwise with an angle of 5π/4 radians. Negative angles denote counterclockwise movement.
When attempting to find another rotation that transports A to B, we may augment -5π/4 radians by 2π (or multiples of 2π), yielding:
-5π/4 + 2π = 3π/4 radians
Alternatively, subtracting multiples of 2π from -5π/4 radians results in yet another rotation taking A to B:
-5π/4 - 2π = -13π/4 radians
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Help me out please!!!!
Answer this true or false question please:4x-1<2x+7 when x =0
A 12 ounce Starbucks latte costs $3.36. What is the constant of proportionality that relates the cost in dollars, y, to the number of ounces, x, in a Starbucks latte?
Answer:
Y = X times 0.28
Step-by-step explanation:
1. You set it up as a proportionality
12/1 and 3.36/x
The x stands for how much money it takes to get 1 ounce
2. You do the old man line.
12 times x = 3.36 times 1
12x = 3.36
3. Now you divide 3.36 by 12
3.36 divided by 12
.28
4. You insert 0.28 into the problem
12 times 0.28 = 3.36
X = 0.28
So 1 ounce costs $0.28
So Y = X times 0.28
Answer:
Step-by-step explanation:
When tossing a two-sided, fair coin with one side colored yellow and the other side colored green, determine P(yellow).
yellow over green
green over yellow
2
one half
The calculated value of the probability P(yellow) is 0.5 i.e. one half
How to determine P(yellow).From the question, we have the following parameters that can be used in our computation:
Sections = 2
Color = yellow, and green
Using the above as a guide, we have the following:
Yellow = 1
When the yellow section is selected, we have
P(yellow) = yellow/section
The required probability is
P(yellow) = 1/2
Evaluate
P(yellow) = 0.5
Hence, the value is 0.5
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6
Mr. Jones determined that the equation y = 98 - 15 x could be used to predict his
students' unit test scores, based on the number of days, x, a student was absent
during the unit. What is the meaning of the y-intercept of the function?
A. A student who was not absent during the unit should score about 98.
B. A student who was not absent during the unit should score about 94.5.
C. A student's test score should increase by about 3.2 points for each day the
student is absent.
D. A student's test score should decrease by about 3.2 points for each day the
student is absent.
A pizza shops sells pizzas that are 10inches (in diameter) or larger. A 10-inch cheese pizza cost 8$ .Each additional inch costs $1.50 ,and each additional topping costs 0.75 Write an equation that represents the cost of a pizza . Be sure to specify what the variable represents
Answer:
y=8+1.5x+0.75z
Step-by-step explanation:
step one:
let us initialize the variables
let the cost of pizza be y
and let additional inch be x
also, let additional topping be z
step two:
we can model the cost of pizza as
y=8+1.5x+0.75z
therefore the expression for the cost of the pizza is given as
y=8+1.5x+0.75z
For the given confidence level and values of x and n, find the following, x=46, n=98, confidence level 99.8% Part 1 of 3 Part 3 of 3 (c) Find the margin of error. Round the answers to at least four decimal places, if necessary. The margin of error for the given data is .1415 х 5
The margin of error is 0.1415, where z is the critical value for the desired confidence level,
The margin of error can be calculated using the formula: Margin of error = z * (standard deviation / sqrt(n))
where z is the critical value for the desired confidence level, standard deviation is the population standard deviation (which can be estimated using the sample standard deviation), and n is the sample size.
For a 99.8% confidence level, the critical value is 2.967. Using the given values of x and n, we can calculate the sample proportion as 46/98 = 0.4694.
To estimate the population standard deviation, we can assume that the sample proportion is a good estimate of the population proportion, and use the formula:
standard deviation = sqrt(p*(1-p)/n)
where p is the sample proportion. Substituting the values, we get: standard deviation = sqrt(0.4694*(1-0.4694)/98) = 0.0519
Now we can plug in the values into the margin of error formula to get: Margin of error = 2.967 * (0.0519 / sqrt(98)) = 0.1415
Therefore, the margin of error is 0.1415.
It is important to note that the margin of error represents the amount by which the sample proportion may differ from the population proportion with a certain level of confidence.
It is also important to remember that the margin of error is not the same as the sampling error, which is the difference between the sample mean and the population mean.
The margin of error can be used to determine the sample size required for a given level of precision, or to compare different sample sizes to determine which is more likely to yield a representative sample.
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in how many ways can people sit around a round table if pierre and thomas want to sit together, but rosa doesn't want to sit next to either of them? (treat rotations as not distinct but reflections as distinct.)
There are 72 ways for people to sit around a round table if Pierre and Thomas want to sit together, but Rosa doesn't want to sit next to either of them.
First, we can seat Pierre and Thomas next to each other as a block. There are 2 ways to arrange them (PT or TP).
Next, we can seat Rosa in one of the 6 available seats that are not next to the block. There are 6 ways to do this.
Then, we can seat the remaining 4 people in the 4 available seats. There are 4! ways to do this.
Finally, we need to account for the fact that rotations are not distinct but reflections are distinct. Since there are 8 people seated around the table, there are 8 possible rotations. However, if we reflect the table (i.e., flip it over), we get a different seating arrangement. Therefore, there are 16 distinct arrangements.
Putting it all together, we have:
2 (arrangements for Pierre and Thomas) x 6 (arrangements for Rosa) x 4! (arrangements for the remaining 4 people) x 16 (accounting for distinct reflections) = 72
Therefore, there are 72 ways for people to sit around a round table if Pierre and Thomas want to sit together, but Rosa doesn't want to sit next to either of them.
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Supposed 12 inches of wire cost $.72 at the same rate how much insensible 33 inches of wire cost
Answer:
$1.98
Step-by-step explanation:
12 ÷ 0.72 = 16.67
33 ÷ X = 16.67
X = 33 ÷ 16.67
=1.98
one morning, ms. simon drove directly from her home to her workplace in 242424 minutes. what was her average speed, in miles per hour, during her drive that morning?
The average speed in miles per hour during her drive that morning is 43.5 miles per hour .
In the question ,
it is given that ,
the distance between home to freeway entrance is = 0.6 miles
the distance between freeway entrance to freeway exit is = 15.4 miles
the distance between freeway exit to workplace is = 1.4 miles
So , the distance from home to work place = 0.6 + 15.4 + 1.4 = 17.4 miles
we know that 24 minutes = 24/60 = 0.4 hours ,
the average speed = total distance / total time
= 17.4/0.4
= 43.5 miles per hour
Therefore , the average speed is 43.5 miles per hour .
The given question is incomplete , the complete question is
One morning, Ms. Simon drove directly from her home to her workplace in 24 minutes. what was her average speed, in miles per hour, during her drive that morning ?
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EFGH is a parallelogram. Find the measure of FG.
4w + 4
E
F
-
3z +8
52- 14
H
G
2 w + 22
The measure of FG is
Answer:
41
Step-by-step explanation:
FG = EH ( being opposite sides of parallelogram)
3z + 8 = 5z - 14
5z - 3z = 8 + 14
2z = 22
z = 11
Now
FG = 3z + 8 = 3 *11 + 8 = 33 + 8 = 41
Hope it will help :)❤
PLEASE HELP I NEED THIS ASAP PLEASE!!!!
Answer: Radius (r) 5.99848 in
Diameter 11.99696 in
Circumference (c) 37.68955 in
Area 113.04in²
Radius (r) 5.99848 in
Diameter 11.99696 in
Circumference (c) 37.68955 in
Area 113.04 in²
Radius (r) 0.999493 in
Diameter 1.998986 in
Circumference (c) 6.28 in
Area 3.13841 in²
Radius (r) 8.49569 in
Diameter 16.99138 in
Circumference (c) 53.38 in
Area 226.75 in²
Radius (r) 2.5 cm
Diameter 5 cm
Circumference (c) 15.70796 cm
Area 19.63495 cm²
Radius (r) 1.1 yd
Diameter 2.2 yd
Circumference (c) 6.9115 yd
Area 3.80133 yd²
Radius (r) 2 in
Diameter 4 in
Circumference (c) 12.56637 in
Area 12.56637 in²
Step-by-step explanation: I hope this helps.
SOMEONE HELP ME PLEASEEE
Answer:
I would say A
Step-by-step explanation:
Consider the same study described previously that seeks to compare four diets (low-fat, low-carb, zone, and dash) and a control condition. suppose the researchers wanted to compare the diets pairwise using multiple two-sample t tests. discuss the difficulties in conducting the analysis this way.
Conducting multiple t-tests can be time-consuming and requires a larger sample size to ensure sufficient power to detect differences between the groups. This may increase the cost and resources required for the study.
What is analysis in mathematics?
The analysis is a branch of mathematics that deals with the study of functions, sequences, and limits. It is concerned with understanding how functions behave, how they change and grow, and how they can be approximated and analyzed.
There are several difficulties in conducting a multiple two-sample t-test analysis to compare four diets pairwise in the described study.
One difficulty is that the multiple t-tests increase the risk of Type I errors, which are false positive findings. When multiple tests are conducted, the overall probability of making at least one Type I error increases. This can lead to the conclusion that a difference exists between two groups when in fact there is no real difference. To control for this risk, the researchers would need to use a stricter significance level or adjust the p-values using a method such as the Bonferroni correction.
Another difficulty is that the multiple t-tests do not take into account the relationships between the different groups being compared. For example, if the low-carb diet group has significantly different outcomes from the control group, this may also affect the results of the comparison between the low-carb diet and the other diet groups. A more comprehensive analysis method, such as a one-way ANOVA or a multivariate analysis, would be needed to account for these relationships.
Hence, conducting multiple t-tests can be time-consuming and requires a larger sample size to ensure sufficient power to detect differences between the groups. This may increase the cost and resources required for the study.
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