The arithmetic mean is frequently used when discussing a bunch of numbers as being "average." One of three possible averages—the others being the median and the mode—is the one we're discussing here.
What is the Relationship Between Mean, Median and Mode?It would appear that the mean, median, and mode have no relationship at first glance. Measuring the center of a data collection, however, does have an empirical link.There is typically a difference between the median and the mode, and it is typically three times larger than the gap between the mean and the median, according to mathematicians.Formula below illustrates how the empirical relationship works:Mean minus Mode = 3 (Mean – Median)
For Given
Median, Mode, and Median Results: 95.85714 (Mean (Average)).
A middle value of 97
100 is the Mode (Most Popular)
Variety & Totals
Maximum to Minimum Results: 11
Total Numbers in the Set: 7
in descending order: 89, 92, 95, 97, 98, 100, 100
Ordered in decreasing order: 100,100,98,97,95,92,89
Even Numbers: 92, 98, 100, 100.
Odd Numbers: 89,95,97.
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a regression model in which more than one independent variable is used to predict the dependent variable is called
A regression model in which more than one independent variable is used to predict the dependent variable is called multiple linear regression.
Multiple linear regression refers to a statistical technique used to predict the outcome of one variable based on the values of two or more variables. Sometimes simply called multiple regression, it is an extension of linear regression. The variable we want to predict is called the dependent variable, and the variables we use to predict the value of the dependent variable are called the independent or explanatory variables.
Multiple Linear Regression - Formula
Yi + β0 + β1xi1 + β2xi2 + βpxip + ∈
Where:
Yi is the dependent or predicted variable
β0 is the y-intercept, i.e., the value of y when both xi and x2 are 0.
β1 and β2 are the regression coefficients representing the change in y relative to a one-unit change in xi1 and xi2, respectively.
βp is the slope coefficient for each independent variable.
∈ is the model’s random error (residual) term.
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Why has she decided to stop mentioning the wallpaper to others?
The lines are taken from the short story 'The Yellow Wallpaper'. The woman stops mentioning the wallpaper to others because she feels suspicious about it.
The short story summarizes a woman who is suffering from nervous depression and what happens when she comes in contact with wallpaper in her new house which she thinks is alive. Throughout the entire story, the narrator expresses how the woman feels, how she thinks the wallpaper is alive and that it can cause harm to her.
At first glance, she feels that it is ugly, and to get better she describes the entire house. She feels very disturbed when she sees the wallpaper in her bedroom and it makes her feel strange. She becomes so obsessed with the wallpaper to such an extent that she feels like it is the shape of a woman who is alive.
She becomes possessive and feels that the woman in the wallpaper is moving through the entire house so she starts biting and tearing the wallpaper to free the women trapped inside. The entire story mentions the mental health of the women.
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If elizabeth randomly chooses her ride in the morning and in the evening, what is the probability that she'll use a cab exactly one time?.
The required probability that she'll use a cab exactly one time is 4/9.
What is the probability ?probability is a part of math that arrangements with figuring out the probability of the event of an occasion.
According to question:Elizabeth lives in San Francisco and works in Mountain View.
In the first part of the day she has 3 transportation choices (bus, cab, train) to work, and at night she has similar 3 options for her outing home.
All transportation (bus, cab, train) are comparably liable to be chosen, and 1 of them should be chosen in the first part of the day and night, so we get:
P (bus) = P (taxi) = P (train) = 1/3.
We additionally have P(no taxi in night) = P(no taxi at morning) = 2/3
Presently, P(using taxi precisely once) = P(cab at morning and no taxi at night) + P(no taxi at morning and taxi at night)
= P(cab, no taxi) + P(no taxi, taxi)
= 1/3 × 2/3 + 2/3 × 1/3
= 2/9 + 2/9
= 4/9
Consequently, the probability that Elizabeth utilizes a taxi just once is 4/9.
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A polynomial function can be written as (x - 1)(x - 4)(x + 7). What are the x-intercepts of the graph of this function?
(1,0), (4,0), (7,0)
(-1.0), (-4, 0), (-7.0)
(1.0) (4 0) (-7, 0)
(-1,0), (-4, 0), (7.0)
Answer:
the 4th option is correct
Step-by-step explanation:
thank you
Determine which equation is false, based on the solution set S:{2}.
7 = 6p − 5
4t = 8
3(3c + 1) = 21
5m + 8 = 16
pls help ill give 45 points
Answer:
[tex]5m+8=16[/tex]
Step-by-step explanation:
[tex]5m+8=16 \\ \\ 5m=8 \\ \\ m=1.6 \neq 2[/tex]
using substitution to solve the system below, what expression should be substituted into the first equation?
The expression should be substituted into the first equation is "x = 8 -2y" and also the value of x = 3 and y = 2.5
What do you mean by substitution?
The substitution method is an algebraic strategy for resolving simultaneous linear equations. This approach, as the name suggests, involves substituting the value of one variable from one equation into the second equation. This makes it easier to answer a pair of linear equations by combining them into a single equation with a single variable.
The equations given in the question,
2x - 4y = -4
x + 2y = 8
Let these two equation be named as 1 and 2 respectively.
Taking equation 2 and making x stay one side and all others on other side of the equation. We get,
x = 8 -2y
Substituting this value of x in equation 1.
2x - 4y = -4
2(8 - 2y) - 4y = -4
y = 2.5
substituting this value of y in equation 2,
x + 2y = 8
x = 8 - 5
x = 3
Therefore, The expression should be substituted into the first equation is "x = 8 -2y" and also the value of x = 3 and y = 2.5
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Complete Question
Using substitution to solve the system below, what expression should be substituted into the first equation? 2x-4y=-4 and x+2y=8
PLEASEE HURRYYY
Given mn, find the value of x.
Answer:
(6x+3)
(7x-19)
Answer:x=+22
Step-by-step explanation:We move all terms to the left:
6x+3-(7x-19)=0
We get rid of parentheses
6x-7x+19+3=0
We add all the numbers together, and all the variables
-1x+22=0
We move all terms containing x to the left, all other terms to the right
-x=-22
x=-22/-1
x=+22
To start her old lawn mower, rita has to pull a cord and hope for some luck. On any particular pull, the mower has a 20% chance of starting. What is the probability that it takes her more than 6 pulls to start the mower?.
The probability that it takes her more than 6 pulls to start the mower is 0.262144. The result is obtained by the formula of binomial distribution.
What is the formula of binomial distribution?The formula of binomial distribution is
[tex]P(X = x) = C_{n,x}.p^{x}. (1 - p) ^{n-x}[/tex]
[tex]C_{n,x} = \frac{n!}{x! (n-x)!}[/tex]
Where
x = number of successesn = number of trialsp = probability of a success on a single trialRita has to pull a cord to start her old lawn mower. If the probability of success is 20%, what is the probability that it takes her more than 6 pulls to start the mower?
We have:
p = 20% = 0.2n = 6Using the formula of binomial distribution,
[tex]P(X = 1) = C_{6,1}.(0.2)^{1}. (0.8) ^{5} = 0.393216[/tex]
[tex]P(X = 2) = C_{6,2}.(0.2)^{2}. (0.8) ^{4} = 0.24576[/tex]
[tex]P(X = 3) = C_{6,3}.(0.2)^{3}. (0.8) ^{3} = 0.08192[/tex]
[tex]P(X = 4) = C_{6,4}.(0.2)^{4}. (0.8) ^{2} = 0.01536[/tex]
[tex]P(X = 5) = C_{6,5}.(0.2)^{5}. (0.8) ^{1} = 0.001536[/tex]
[tex]P(X = 6) = C_{6,6}.(0.2)^{6}. (0.8) ^{0} = 0.000064[/tex]
The probability that it takes more than 6 pulls,
P(X > 6) = 1 - P(X ≤ 6)
P(X > 6) = 1 - [P(X = 1)+P(X = 2)+P(X = 3)+P(X = 4)+P(X = 5)+P(X = 6)]
P(X > 6) = 1 - (0.393216 + 0.24576 + 0.08192 + 0.01536 + 0.001536 + 0.00064)
P(X > 6) = 1 - 0.737856
P(X > 6) = 0.262144
Hence, the probability to take more than 6 pulls to start the old lawn mower is 0.262144.
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Melinda can paint 14 of a wall in the same time that desiree can paint 25 of a wall. How much of a wall will melinda have painted when desiree has finished painting 1 wall?.
Melinda will have painted 56 percentage of a wall for the time taken by Desiree, when she has finished painting 1 wall.
The computation of the difference between the time taken by Desiree and Melinda to paint walls at their respective speeds can be shown using the generalized calculations, as expressed hereunder,
Desiree will take 4x the time for painting 1 wall completely (25x4=100%). Thus, the amount of time taken by Melinda will also be 4x of her actual time, as below,
14×4= 56%
Therefore, Melinda will have covered 56 percent of the wall in the time when Desiree completes painting the entire wall.
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How much pure (100\%100%100, percent concentration) alcohol should they include in a 600\,\text{mL}600mL600, start text, m, L, end text bottle to make a 68\%68%68, percent mixture?
Using the percentage by volume of the solutions, we can calculate that we require 216 mL of 100% alcohol and 384 mL of 50% alcohol.
What is the percentage by volume?Volume/volume percentage is a unit used to represent how much of a substance is present in a solution.
It is sometimes referred to as v/v percent or %v/v.
It is calculated by dividing the volume of the solute by the total volume of the solution, then multiplying the result by 100.
So, we are aware of:
A + B = 600 mL
We also know that the total alcohol concentration of the final solution must be equal to:
0.68 * 600 mL = 408 mL
Therefore, it follows that:
0.50 * A + B = 408 mL
The first equation leads to the following conclusion:
A = 600 mL - B
Using that A in the second equation, we arrive at:
0.50 * (600 mL - B) + B = 408 mL
300 mL - 0.50 B + B = 408 mL
If we rewrite this equation as follows:
B - 0.50 * B = 408 mL - 300 mL
0.50 * B = 108 mL
B = 108 mL / 0.50
B = 216 mL
A = 600 mL - 216 mL = 384 mL
Therefore, using the percentage by volume of the solutions, we can calculate that we require 216 mL of 100% alcohol and 384 mL of 50% alcohol.
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Complete question:
A factory has a batch of hand sanitizer with 50\%50%50, percent alcohol content. How much pure (100\%100%100, percent concentration) alcohol should they include in a 600\,\text{mL}600mL600, start text, m, L, end text bottle to make a 68\%68%68, percent mixture?
Please help me if I don’t do it I will fail my class
I think that's about right...
Just copy the image down onto your paper
8. Determine the perimeter of Parallelogram STUV.
Round to the nearest hundredth, if necessary.
The answer to this Question Based on Perimeter is 8.72
What is Perimeter?
Perimeter is total length of boundary of any closed figure
Solution:
to calculate perimeter of this first we need to calculate the lengths of all sides
BY pythagoras theorem we can see that SV = sqrt(4^2 + 1^2)
SV = sqrt(17)
By similar procedure other lengths we can calculate as
UV = sqrt(5)
UT = sqrt(17)
ST = sqrt(5)
Hence perimeter will be sum of all these that is 2sqrt(5) + 2sqrt(17)
2(2.24) + 2(4.12)
4.48 + 4.24
8.72 will be perimeter
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Mickey earned $475 from mowing lawns last summer. He deposited this money in an account that pays an interest rate of 3. 8% compounded annually. What will be his balance after 4 years rounded to the nearest cent?.
The balance after 4 years is $551.42. Here we use the formula of compound interest to calculate the total amount or balance after 4 years.
Define compound interest.Compound interest is the interest calculated based on the initial principal and sum of the interests calculated over the previous time periods.
Formula for calculating the compound interest is:
A = P( 1 + [tex]\frac{r}{n}[/tex])^nt
Here A is the final amount accumulated
P is the Principal = $475
r is the interest rate = 3.8%
n is the number of times compounded in a year(here it is compounded annually) so n = 1.
t is the given time period = 4
Therefore
A = 475(1 + 3.8%)⁴
= 475(1.038)⁴
= 551.42$
Therefore total balance after 4 years is $ 551.42
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What is another word of split?
Another word for the word split is given by many other words like crack, to divide, tear, to break apart, bisect it into parts and so.
Explanation:
Another word of the given word split is given by:
Different words represents the meaning of the word split.Crack , separating, Tear, fragment , cleave are few words representing the another word of the given word splitting.Meaning or the another used instead of word split in two is given by dividing it into two equal parts, break one part into two equal parts.Bisecting a diagram or a line segment into parts is also done by splitting.Separation is also consider as another word for splitting which basically divides one species( living or non living ) from another.For example split number 24 is equal to 3 × 2 × 2 × 2.Therefore, the another word used for the given word split is given by crack , cleave, tear, divide it into two equal parts.
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What is the LCM of 3 and 4 and 5 and 6?
The LCM of 3 and 4 and 5 and 6 is 12 and 30.
The abbreviation LCM stands for "Least Common Multiple." The smallest multiple that two or more numbers share is known as the least common multiple.
LCM can be found by different methods like the Listing method, Prime Factorization method, and Division method.
To find LCM using the listing method follow the below steps,
Let A be one number and B be another number. First, list the first few multiples of them.Select the common multiples from multiples of both A and B.Choose the lowest common multiples of both A and B. This is the LCM.For numbers 3 and 4, LCM is
Multiples of 3 are written as 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, …..etc.
Multiples of 4 are written as 4, 8, 12, 16, 20, 24, 28, 32, 36, 40,...etc.
Common multiples of 3 and 4 are 12, 24, 36..etc.
The LCM is 12.
For numbers 5 and 6, LCM is
Multiples of 5 are written as 5, 10, 15, 20, 25, 30, 35, 40, 45, 50,..etc.
Multiples of 6 are written as 6, 12, 18, 24, 30, 36, 42, 48, 54, 60,...etc.
The common multiple of 5 and 6 is found to be 30.
The LCM is 30.
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The ratio of accessible parking spots to general parking spots is 2:75. If a parking lot is designed to hold 385 parking spots, how many more general parking spots than accessible parking spots will there be?
There are 365 more general parking spots than accessible parking spots.
What is the ratio?The ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
Given that, the ratio of accessible parking spots to general parking spots is 2:75.
A parking lot is designed to hold 385 parking spots.
So, 2+75=77
Number of general parking spots
= 75/77 ×385
= 75×5
= 375
Number of accessible parking spots
=2/77 ×385
= 10
Now, difference =375-10
= 365
Therefore, the number general parking spots than accessible parking spots are 365.
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How do you determine the end behavior of the graph of a polynomial function?
We can determine the end behavior of the graph of a polynomial function if we look at the x-right axis's end (as x approaches +) and left end (as x approaches ), respectively.
Given,
End behavior of polynomial function;
A polynomial function's final behavior is how its graph behaves as x gets closer to positive or negative infinity. The graph's final behavior is determined by a polynomial function's degree and leading coefficient.
Here,
The behavior of the function graph at the "ends" of the x-axis is known as the end behavior of a function, or f. In other words, if we look at the right end of the x-axis (as x approaches +) and the left end of the x-axis (as x approaches ), the end behavior of a function represents the trend of the graph.
That is,
If we examine the ends of the x-right and left axes (as x approaches +) in turn, we can ascertain the end behavior of the graph of a polynomial function.
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Landon made plain cookies and raisin cookies in the ratio of 2:3
He then made 6 more raisin cookies and the ratio changed to 1:3.
How many cookies did Landon make in all?
Step-by-step explanation:
x = number pain cookies
y = number raisin cookies
x/y = 2/3
x/(y+6) = 1/3
x = (y + 6)/3
x = 2y/3
therefore,
x = x = (y + 6)/3 = 2y/3
y + 6 = 2y
6 = y
x = 2y/3 = 2×6/3 = 2×2 = 4
so, he made originally 4 + 6 cookies, and then he made 6 more raisin cookies, so, he made 4 + 6 + 6 = 16 cookies.
the paired values of the consumer price index (cpi) and the cost of a slic of pizza are listed in the table. assume a 0.01 significance level. determine the correlation coefficient and find the critical values.
r = 0.985; critical values = ±0.917
r = 0.985; critical values = ±0.811
r = 0.872; critical values = ±0.811
r = 0.872; critical values = ±0.917
The correct option regarding the correlation coefficient and the critical values for the the paired values of the consumer price index (cpi) and the cost of a slice of pizza is given as follows:
r = 0.985; critical values = ±0.917.
How to obtain the correlation coefficient and the critical value?The correlation coefficient for a data-set is obtained inserting the points of the data-set into a correlation coefficient calculator.
For this problem, the points are given as follows:
(30.2, 0.15), (48.3, 0.35), (112.3, 1), (162.2, 1.25), (191.9, 1.75), (197.8, 2.00).
Inserting these points into a calculator, the numeric value of the coefficient is given as follows:
r = 0.9852.
Then the critical value is also used a calculator for the r-distribution, with these following parameters:
r = 0.9852.Sample size of 6.Using the calculator, the critical value is of:
r = ±0.917.
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In march 2015, the public policy institute of california (ppic) surveyed 7525 likely voters living in california. Ppic researchers find that 68 out of 200 central valley residents approve of the california legislature and that 156 out of 300 bay area residents approve of the california legislature. Ppic is interested in the difference between the proportion of central valley and bay area residents who approve of the california legislature. Ppic researchers calculate that the standard error for the proportion of central valley residents who approve of the california legislature minus bay area residents who approve of the california legislature is about 0. 44. Find the 95% confidence interval to estimate the difference between the proportion of central valley and bay area residents who approve of the california legislature. Responses
The null hypothesis get rejected comparing the 95% confidence interval to the proportion of the given central valley residents and bay area residents .
As given in the question,
Total number of voters in California = 7525
x₁ = Number of voters of central valley residents approved California legislature
= 68
n₁ = Total number of voters of central valley residents
= 200
x₂ = Number of voters of bay area residents approved California legislature
= 156
n₂= Total number of voters of bay area residents
= 300
p₁ = proportion of voters of central valley
p₂= proportion of voters of bay area
p₁ = x₁/ n₁
= 68/200
= 0.34
p₂ = x₂/n₂
= 156/300
= 0.52
Standard error = √p₁(1 -p₁) / n₁ + p₂( 1- p₂)/n₂
= √0.34(1-0.34) / 200 + 0.52(1-0.52)/ 300
= √0.001122 + 0.000832
= 0.044
[tex]p_{w}[/tex] = (68 + 156 )/ (200 + 300)
= 0.448
[tex]q_{w} = 1- p_{w}[/tex]
= 1 - 0.448
= 0.552
null hypothesis p₁ - p₂ = 0
z = ( 0.52 - 0.34 ) - 0/ √(0.448)(0.552)( 1/200 + 1/300)
= 4
Tabular value for confidence interval 95% = 1.96
4 > 1.96
We reject the null hypothesis.
Therefore, the difference of proportion of central valley residents and the bay area residents rejection of null hypothesis as per given 95% confidence interval.
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two boxes of Apples the sum of their weight is 54 kilograms the first has 12kg more than the second so the number of kilograms in the second box is....... kg.
Answer:
The weight of the second box is 42 kilograms, since 54 - 12 = <<54-12=42>>42.
Use substitution to solve the system of equations.
y = 5x + 1
4x + y = 10
Answer:
(1, 6 )
Step-by-step explanation:
y = 5x + 1 → (1)
4x + y = 10 → (2)
substitute y = 5x + 1 into (2)
4x + 5x + 1 = 10
9x + 1 = 10 ( subtract 1 from both sides )
9x = 9 ( divide both sides by 9 )
x = 1
substitute x = 1 into (1)
y = 5(1) + 1 = 5 + 1 = 6
solution is (1, 6 )
Answer: x = 1, y = 6
Step-by-step explanation:
y = 5x + 1
4x + y = 10
substitute y into the second equation
4x + 5x + 1 = 10
9x + 1 = 10
9x = 10 - 1
9x = 9
x = 9/9
x = 1
Now you have the x value substitute it in one of the equations above to get the y value
y = 5(1) + 1
y = 5 + 1
y = 6
so your x value is 1 and your y value is 6
This is the Fraction Operations Please solve all these:
1. 3/8 + 2/3= ?
2. 3 1/4 - 1 1/8=?
3. 2 1/2 divided by 2= ?
Please explain how you got it. Thanks!
The required simplified solution of the given numerals is 1. 25/24, 2. -7/8, and 3. 5/4.
The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.
here,
1.
3/8 + 2/3 = 9 + 16 / 24
= 25 / 24
2.
3 1/4 - 1 1/8 = 1/4 - 9 / 8
= -7/8
3.
[2 + 1 /2] / 2 = [5 / 2] / 2 = 5 / 4
Thus, the mandated simplified solution of the assigned numerals is 1. 25/24, 2. -7/8, and 3. 5/4.
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A line passes through the point (-6, 8) and has a slope of 4.
Write an equation in point-slope form for this line.
Step-by-step explanation:
Slope-Point form : (y-y1) = m(x-x1)
So,
The equation is 4x -y +32 = 0
a couple plans to have three children. find the probability of having all boys. find the probability of having two boys or two girls.
the find the probability of having two boys or two girls will be 50%
What is probability ?
The probability formula can be used to calculate the likelihood of an event by simply dividing the favorable number of possibilities by the total number of options. The likelihood of an occurrence might vary from 0 to 1 because the favourable number of outcomes can never be greater than all possible outcomes.
For two genders and three children, there are a total of 2³=8 potential combinations.
There are (GGG, GGB, BGG, GBG) = 4 pairs where at least two of the children are female.
As a result, there is a 4/8 = 1/2 chance that the family of three children will include at least two girls.
Hence the find the probability of having two boys or two girls will be 50%.
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Find b: 11/4 = -1/4 + b
Answer:
b=3 (PLEASE GIVE BRAINLIYEST)
Step-by-step explanation:
11/4=-1/4+b
12/4=b
b=12/4
b=3/1
b=3
twenty-five engine mounts are sampled each day and found to have an average width of 2 inches, with a standard deviation of 0.1 inches. what are the control limits that include 90% of the sample means?
The control limits that include 90% of the sample means be,
(24.9671 , 25.0329).
Given, twenty-five engine mounts are sampled each day and found to have an average width of 2 inches, with a standard deviation of 0.1 inches.
we have to find the confidence interval under confidence of 90%.
As, Mean = 2 and Standard Deviation = 0.1
Subtract 1 from your sample size. 25 – 1 = 24. This gives you degrees of freedom.
Subtract the confidence level from 1, then divide by two.
(1 – 0.9) / 2 = 0.05
For 24 degrees of freedom (df) and α = 0.05, the result is 1.645.
Divide your sample standard deviation by the square root of your sample size.
0.1 / √(25) = 0.02
Now, 0.02 × 1.645 = 0.0329
The lower end of the range
25 – 0.0329 = 24.9671
The upper end of the range
25 + 0.0329 = 25.0329
Hence, the confidence interval be, (24.9671 , 25.0329)
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an elevator starts at the basement with 10 people and discharges them all by the time it reaches the top ??oor, number 6. in how many ways could have the people get o?? the elevator if it only ma??ers the number of people that le?? on each ??oor?
Answer:
I am so sorry I'm doing this for the 'Help other's' task
Solve 4x + 3 = 9 for x using the change of base formula log base b of y equals log y over log b.
The value of x for a given expression 4x + 3 = 9 is equal to -1.415.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that the expression is 4x + 3 = 9. The value of x will be calculated as,
log(4)⁹= x + 3
log9 / log4 = x + 3
0.95424425 / 0.6020599 = x + 3
1.584962725 -3 = x + 3 - 3
x = -1.415037275
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Luis eats 4 pieces of a pizza divided into 6 equal-sized parts.
Omar eats 2 of the pieces.
46+26 models the total amount of pizza Luis and Omar ate.
Which expression is equivalent to 46+26?
CLEAR CHECK
(16+16+16+16)+(16+16)
46+26
(46+46+46+46)+(26+26)
4+6+2+6
Answer:
i think its just 46+26
Step-by-step explanation:
sorry if im wrong