Answer:
CnD= {r}
:)))))))))))))))))))))
What is the answer of 10% of 6340
Answer:
604
Step-by-step explanation:
just simple division pls giv 5 out ogf 5 and thanks
Answer:
634
Step-by-step explanation:
An electric company calculates a persons monthly bill from the number of kilowatt-hours (kWh), x, used how much is the bill for a person who uses 600kWh in a month?
The calculated bill for a person who uses 600kWh in a month is $80
How much is the bill for a person who uses 600kWh in a month?From the question, we have the following parameters that can be used in our computation:
b(x) = 0.10x, x ≤ 200
b(x) = 0.15(x - 200) + 20, x > 200
For a person that uses 600kWh per month, we make use of the function
b(x) = 0.15(x - 200) + 20
This is because it is valid for x > 200
Substitute the known values in the above equation, so, we have the following representation
b(600) = 0.15(600 - 200) + 20
Evaluate
b(600) = 80
Hence, the bill for a person who uses 600kWh in a month is $80
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Identify the most appropriate test to use for the following situation: A private and a public university are located in the same city. For the private university, 1046 alumni were surveyed and 653 said that they attended at least one class reunion. For the public university, 791 out of 1327 sampled alumni claimed they have attended at least one class reunion. Is the difference in the sample proportions statistically significant
Answer:
From the question we are told to test if the difference in the sample proportions statistically significant and given that the sample size is sufficiently large i.e \(n_ 1 \ and \ n_2 \ is \ > \ 30\) then the most appropriate test to use is the
Two samples z test
Step-by-step explanation:
(03.03)
The point R is halfway between the integers on the number line below and represents the number ____. (Use the hyphen for negative numbers and write the answer as a decimal, such as -6.4).
Answer:
Your answer is -3.5 which lies between -4 and -3.
The point R is halfway between the integers on the number line below and represents the number -3.5 .
The revenue for Company A was $239 million, compared to $467 million for Company B. The revenue for Company A was ____% of the revenue for Company B. (Round to the nearest tenth as needed.)
Company A's revenue was $239 million whereas Company B's was $467 million as a result revenue for Company A was equal to 52% of that for Company B.
What is the percentage?It shows the proportion between two integers when stated as a decimal fraction of 100 parts. It is a statistic used to compare two sets of data, and the sign % is used to represent it as a percentage.
It is given that, the revenue for Company A was $239 million, compared to $467 million for Company B.
We have to find the % by which A was revenue for Company B.
Suppose x% by which A was revenue for Company B.
⇒$467 of x =$239
⇒467×x=239
⇒x=239/467
⇒x=0.5177 ≈ 0.52
⇒x%=52%
Thus, the revenue for Company A was equal to 52% of that for Company B.
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help pleaseeeeeee!!!!!!
Answer:
5x + 100
Step-by-step explanation:
(2x + 6) x 2 = 4x + 12
14x + 8 - 4x + 12 =
10x + 20 / 2 =
5x + 100
Hope that helps!
Please Help!
The question is below in the photo.
Answer:
Step-by-step explanation:
torque =Fr sin θ
=10×0.30 sin 30
=3×1/2
=1.5 Nm
Hot tea is brought to a boil at 212F and must be cooled to a temperature of 160°F The room temperature is 68°F
Newtons law of cooling can be used to find how long it takes a liquid to be cooled. The formula T= (To-Tr)e^-rt +Tr where Tr is the air temperature, To is initial temperature, T is the expected temperature, and r is rate of cooling and t is time in minutes. How long does it take for tea to cool if the rate of cooling is 0.05?
A. 3.9
B. 9.0
C. 12.9
D. 37.9
Answer:
no explanationm
Step-by-step explanation:
I think it's D
PLEASE HELP!!
Melanie is raising money for a school trip by selling candy bars and bags of chips. The price of each candy bar is $1.50 and the price of each bag of chips is $1.25. Yesterday Melanie made $33.25 and sold 13 more candy bars than bags of chips. Determine the number of candy bars sold and the number of bags of chips sold.
Answer: 18 candy bars
5 bags of chips
Step-by-step explanation:
What is the area of the following figure?
35 mm 2
3 mm 2
75 mm 2
105 mm 2
Answer: \(75mm^2\)
Step-by-step explanation:
The formula for the area of a paralellogram is:
bh=a
Where
b is the base (15 for this)
h is the height (5 for this)
and a is the area
Let's sub our values into the formula
\(bh=a\\(15)(5)=a\)
Now solve
\((15)(5)=a\\75=a\)
Members of a softball team raised $1,186.50 to go to a tournament they rented a bus for $842.50 and budgeted $21.50 per player for Meals. write and solve an equation which can be used to determine x the number of players the team can bring to the tournament
If members of a softball team raised $1,186.50 to go to a tournament they rented a bus for $842.50 and budgeted $21.50 per player for Meals. The number of players the team can bring to the tournament is 16.
Number of playersLet x represent the number of players
Formulate an equation
$842.50 + $21.50 × x = $1,186.50
Using the formulated equation to determine the number of players
$842.50 + $21.50 × x = $1,186.50
$842.50 + $21.50 x = $1,186.50
Collect like terms
$21.50 x = $1,186.50 -$842.50
$21.50 x = $344
Divide both side by $21.50 x
x = $344 / $21.50
x = 16 players
Therefore the team can bring 16 players to the tournament.
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The figure is cut into 15 equal pieces. Shade 2/5 of the figure
Answer: Shade 6 pieces
Step-by-step explanation:
Because 2/5 of 15 is 6
Chocolate bar is 53% cocoa. Weight
The number of grams of cocoa is 50.9 grams
What is weight?This is the mass of an object
How to find the number of grams of cocoa contained in the chocolate bar?Since we have that a chocolate bar contains 53% cocoa and the weight of the chocolate bar is 96 grams.
Let
x = number of grams of cocoa, W = weight of chocolate bar and p = percentage of cocoa in chocolate barSo, we have that
x = pW
Given that
p = 53 % = 0.53 and w = 96 gramsSubstituting the values of the variables into the equation, we have that
x = pW
x = 0.53 × 96 grams
x = 50.88
x ≅ 50.9 grams
So, the number of grams of cocoa is 50.9 grams
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Roberto made a line plot to show the weight in pounds of the bags of granola in his store he concluded that the total weight of the granola was 2/1/2+2/3/4+3=8/1/4 pounds
The correct total weight of the bags of granola is 8 1/4 pounds.
One thing that can be done to improve Roberto's reasoning is to ensure the accuracy of the calculations.
In his conclusion, Roberto added the weights of the bags of granola (2 1/2, 2 3/4, and 3) and claimed that the total weight was 8 1/4 pounds. However, the sum of these weights does not equal 8 1/4 pounds.
To address this, Roberto should recheck his calculations. Adding mixed numbers involves adding the whole numbers separately and then adding the fractions separately. In this case, 2 1/2 + 2 3/4 + 3 can be calculated as follows:
2 + 2 + 3 = 7 (sum of whole numbers)
1/2 + 3/4 = 2/4 + 3/4 = 5/4 = 1 1/4 (sum of fractions)
Thus, the correct sum is 7 + 1 1/4 = 8 1/4 pounds.
By double-checking the calculations and providing the accurate sum, Roberto's reasoning would be more precise, reliable, and free from errors.
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The probable question may be:
Roberto made a line plot to show the weight in pounds of the bags of granola in his store he concluded that the total weight of the granola was 2 1/2+2 3/4+3=8 1/4 pounds.
what is one thing that you could do to Roberto's Reasoning
Please help me someone
Researchers wanted to study whether or not Botox injected under the arms can reduce sweating. Which of these is a matched pairs design?
The option that's a matched pairs design in the research is B. For each subject, one underarm is injected with Botox, and the other with salt water.
How to illustrate the information?A matched pair design is used when there are only two treatment conditions in the experiment, and the subject of the experiment is such that it can be grouped into pairs.
In this case, the option that's a matched pairs design in the research is that for each subject, one underarm is injected with Botox, and the other with salt water
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Researchers wanted to study whether or not Botox injected under the arms can reduce sweating.
Which of these is a matched pairs design?
A: Randomly assign the underarms of some subjects to be injected with Botox, and those of other subjects with salt water.
B: For each subject, one underarm is injected with Botox, and the other with salt water.
four hundred thirty-seven
ten-thousandths in decimal form
Answer:
0.0437
Step-by-step explanation:
I can't really explain this one
Answer:
.0437
Step-by-step explanation:
the 4 is in the hundreds spot, the 37 is in the thousands and ten thousandths
Pleaseeeee answerrrrrr
Answer:
x=90-35
=55 is the answer
What part of an hour passes from 3:12 p.m. to 5:30 p.m.?
Answer:
2.3 hours
Step-by-step explanation:
From 3:12 pm to 4:12 pm, one hour passes.
From 4:12 pm to 5:12 pm, another hour passes.
From 5:12 pm to 5:30 pm, there are 18 minutes that pass.
Therefore, the total time elapsed is 2 hours and 18 minutes out of 60 minutes in an hour.
To convert this to a fraction, we can write:
2 hours + 18 minutes = 2 + 18/60 hours = 2.3 hours
So, 2.3/1 hour passes from 3:12 pm to 5:30 pm.
jcob's house is one-half mile from the park.
what is the measurement in feet?
Answer:
Half a mile is 2640 feet.
Is this the graph of a function?
Answer:
function
Step-by-step explanation:
this graph is a function.
why?
if we draw a vertical line on all points of the function we can see that it only intersects ONCE. Therefore, it's a function. if it intersects more than once then it will not be a function
There's another silence as Steve looks toward the crowd and then toward Tommy. He wears a tight grin.
STEVE
Based on the clues in this passage, what will most likely happen next?
• The neighbors will stop doubting Tommy.
Well, I guess what we'd better do then is to run a check on the neighborhood and see which ones of us are really human.
• The neighbors will stop taking Steve seriously.
• The neighbors will continue to joke about the situation.
There's laughter at this, but it's a laughter that comes
from a desperate attempt to lighten the atmosphere. It's a • The neighbors will begin checking to see who is release kind of laugh.
really human.
36. GROUP SHOT - THE PEOPLE 36.
As they look at one another in the middle of their laughter.
-The Monsters Are Due on Maple Street,
Rod Serling
Answer:
5
Step-by-step explanation:
Jada walks dogs to earn money. The points in this graph represent the total amount of money Jada earns based on the number of hours she walks dogs. Jada wants to purchase a new jacket that costs $32.
How many hours does Jada need to walk dogs to earn enough money to buy the jacket?
Answer:
I can't see the graph to know how mych she earns just reply to me how much
Place the indicated product in the proper location on the grid. (1 - 7 x )(1 + 9 x )
Answer:
1+2x-63x^2
Step-by-step explanation:
(1-7x)(1+9x)
1-7x+9x-63x^2
1+2x-63x^2
A quality control expert at LIFE batteries wants to test their new batteries. The design engineer claims they have a standard deviation of 83
minutes with a mean life of 541
minutes.
If the claim is true, in a sample of 160
batteries, what is the probability that the mean battery life would be greater than 553.9
minutes? Round your answer to four decimal places.
As a result, the probability that the average battery life exceeds 553.9 minutes is 0.0262 (or 2.62%). The answer, rounded to four decimal places, is 0.0262.
What is probability?Probability serves as an indicator of how likely an event is to occur. It is represented by a number between 0 and 1, with 0 representing an unlikely event and 1 representing an unavoidable event. Switching a fair coin and coin flips has a probability of 0.5 or 50% because there are two equally likely outcomes. (Heads or tails). Probability theory is a branch of mathematics that studies happenings rather than their properties. It is applied in many fields, including statistics, fund, science, and engineering.
The central limit theorem can be used to approximate the sample mean distribution as a normal distribution with a mean of the population mean and a standard deviation of the population standard deviation divided by the square root of the sample size.
The standard error of the mean (SE) is calculated as follows:
SE = σ/√n
Where n is the sample size and is the population standard deviation.
SE = 83/√160 = 6.575
Z = (X - μ) / SE
Where X represents the sample mean, is the population mean, and SE represents the standard error of the mean.
Z = (553.9 - 541) / 6.575 = 1.94
As a result, the probability that the average battery life exceeds 553.9 minutes is 0.0262 (or 2.62%). The answer, rounded to four decimal places, is 0.0262.
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For two n by n square matricies A and B,
suppose rankA = rankB = n-1.
Can rank(AB) become less than n-1 ?
(e.g. rank (AB) = n-2)
If so, I humbly ask you for an example.
Thank you very much.
No, the rank of the product of two n by n square matrices A and B, denoted as AB, cannot be less than n-1 if both A and B have ranks of n-1.
According to the Rank-Nullity theorem, for any matrix M, the sum of its rank and nullity is equal to the number of columns in M. In this case, the number of columns in AB is n, so the sum of the rank and nullity of AB must be n.
If rank(A) = rank(B) = n-1, it means that both A and B have nullity 1. The nullity of a matrix is the dimension of its null space, which consists of all vectors that get mapped to the zero vector when multiplied by the matrix. Since both A and B have rank n-1, their null spaces consist only of the zero vector.
Now, considering AB, if the rank of AB were less than n-1, it would mean that the nullity of AB is greater than 1.
However, this would violate the Rank-Nullity theorem since the sum of the rank and nullity of AB must be n, which is the number of columns.
Therefore, if rank(A) = rank(B) = n-1, the rank of AB cannot be less than n-1.
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PLEASE HELP ME :))))) !!!
Determine the value of x.
Answer: Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.
Step-by-step explanation:
Generally, the algebraic expression should be any one of the forms such as addition, subtraction, multiplication and division. To find the value of x, bring the variable to the left side and bring all the remaining values to the right side. Simplify the values to find the result.
In calculus, it can be shown that
e^x=infintesigmak=0 x^k/k!
We can approximate the value of for any x using the following sum e^x=infintesigmak=0 x^k/k!
a) Approximate e^2.2 n=3
Answer: \(7.39466666\)
Step-by-step explanation:
Setting \(x=2.2\) and \(n=3\),
\(e^{2.2} \approx \sum^{3}_{k=0} \frac{2.2^{k}}{k!}=\frac{2.2^0}{0!}+\frac{2.2^1}{1!}+\frac{2.2^2}{2!}+\frac{2.2^3}{3!} \approx 7.39466666\)
Answer:
7.39466667 (8 d.p.)
Step-by-step explanation:
We can approximate the value of eˣ for any x using the following sum formula:
\(\boxed{e^{x} \approx \displaystyle \sum^n_{k=0}\dfrac{x^k}{k!}}\)
To approximate \(e^{2.2}\) with n = 3, substitute x = 2.2 and n = 3 into the given sum formula:
\(e^{2.2} \approx \displaystyle \sum^3_{k=0}\dfrac{2.2^k}{k!}\)
To calculate the sum, substitute k with each value from 0 to 3 and add the results together:
\(\begin{aligned}e^{2.2} &\approx \displaystyle \sum^3_{k=0}\dfrac{2.2^k}{k!}\\\\&= \dfrac{2.2^0}{0!}+\dfrac{2.2^1}{1!}+\dfrac{2.2^2}{2!}+\dfrac{2.2^3}{3!}\\\\&= \dfrac{1}{1}+\dfrac{2.2}{1}+\dfrac{4.84}{2}+\dfrac{10.648}{6}\\\\&= 1+2.2+2.42+1.774666666...\\\\&=7.39466667\; \sf (8\;d.p.)\end{aligned}\)
Therefore, the approximate value of \(e^{2.2}\) is:
\(\large \textsf{$e^{2.2}$}=\boxed{7.39466667}\; \sf (8\;d.p.)}\)
Note: To obtain a more accurate approximate value, increase the value of n.
help please i can't find anything
Answer:
The answer is -40
Step-by-step explanation:
Answer: 19x - 216/6
Explanation: Hope this helps!
EASY
? I think it is
Answer:
C.
Step-by-step explanation: