Answer:
read the explanation ya bean bag
Step-by-step explanation:
we can set up some equations
lets say that q=one quarter and d=one dime
there are 92 coins so q+d=92
for each quarter, there are 25 cents added towards the 14 dollars
for each dime, there are 10 cents added towards the 14 dollars
14 dollars is equal to 1400 cents
using all this information, we can write the following equation:
25q+10d=1400
we can simplify this to 5q+2d=280
remember that q+d=92, so let's take out the extra dimes: 3q+2(q+d)=280 or 3q+2*92=280 or 3q+184=280 or 3q=96 or q=32
there are 32 quarters, so we can subtract 32 from 92 to figure out how many dimes we have
92-32=60 dimes
based on these simulated results, what is the probability of answering exactly 15 questions correct on a 30-question exam if you have a 35% chance of getting each question correct? hint: use the law of large numbers - what proportion of the 1000 simulated exams scored 15? it may be helpful to view the results as a table instead of a histogram.
By using the simulated results and the law of large numbers, we can estimate that the probability of answering exactly 15 questions correct on a 30-question exam with a 35% chance of getting each question correct is approximately 7.2%.
Based on the simulated results, we can estimate the probability of answering exactly 15 questions correct on a 30-question exam with a 35% chance of getting each question correct. To do this, we first need to look at the histogram or table of the simulated results to see how many of the 1000 exams scored 15.
If we look at the histogram or table, we can see that there were 72 out of 1000 exams that scored exactly 15. This means that the proportion of exams that scored 15 is 72/1000 or 0.072.
Using the law of large numbers, we can estimate that this proportion is the same as the probability of answering exactly 15 questions correctly on a 30-question exam with a 35% chance of getting each question correct. Therefore, the estimated probability of answering exactly 15 questions correct is 0.072 or 7.2%.
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why is paying back along with a nominal interest rate of 13.62% if the interest is compounded quarterly, how much greater is white effective interest rate than his nominal interest rate
The required white effective interest rate is 0.71% more than his nominal interest rate.
What is compound interest?Compound interest is the interest on deposits computed on both the initial principal and the interest earned over time.
Here,
White Effective interest R,
\(R=(1+i/m)^m)-1\\R=(1+0.1362/4)^4)-1\\R =0.1433*100=\)
R = 14.33 percent
So
Difference in interest = 14.33%-13.62%
=0.71%
Thus, the required white effective interest rate is 0.71% more than his nominal interest rate.
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5x3-4x4+2x-10
Function type?
Answer:
it should be 36 ain show tho.
How do I do these? My math teacher didn’t explain it very well
Answer:WFG=116
Step-by-step explanation:
Kamila plans to build a concrete block wall behind her house. The wall will be 12 feet long, 6 feet high, and 8 inches thick. Each concrete block measures 16 inches long by 8 inches wide by 8 inches deep. How many blocks will Kamila need to build the wall
Kamila will need 162 blocks to build the concrete block wall. To determine the number of blocks Kamila will need, we need to calculate the volume of the wall and the volume of each block.
The volume of the wall can be calculated by multiplying the length, height, and thickness:
Volume of wall = 12 feet * 6 feet * (8 inches / 12 inches/foot) = 72 cubic feet.
The volume of each block is calculated by multiplying the length, width, and depth:
Volume of block = 16 inches * 8 inches * 8 inches = 1024 cubic inches.
Since we need the volume of the wall in cubic feet, we convert the volume of each block to cubic feet:
Volume of block = 1024 cubic inches * (1 foot / 12 inches) * (1 foot / 12 inches) * (1 foot / 12 inches) = 0.4444 cubic feet.
Now, we can calculate the number of blocks needed by dividing the volume of the wall by the volume of each block:
Number of blocks = Volume of wall / Volume of block = 72 cubic feet / 0.4444 cubic feet = 162 blocks.
Therefore, Kamila will need 162 blocks to build the concrete block wall.
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find the two integer between which are given rational number also find their actual position on a number line 12/5
The location of 12/5 is between 2 and 3 on a number line and the number is located at 0.4 units after 2
Finding the two integers where the rational numbers is locatedFrom the question, we have the following parameters that can be used in our computation:
Number = 12/5
Evaluate the expression
So, we have
Number = 2.4
The number 2.4 is between 2 and 3
This means that the location of 12/5 is between 2 and 3 on a number line
Also, the actual position of 12/5 on a number line is that
The number is located at 0.4 units after 2
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hey,pls help me out
by saying answer
(zoom out the picture if you can't see the picture)
Congruence of triangle
grade 7
5.
since ΔABC = ΔXYZ
x = ∠ACB = 30°
y = 180° - 60° - 30° = 90°
6.
a. ΔABC ≅ ΔADC
b. ΔQRS ≅ ΔTPQ
What is the range of the given function?
Answer:
The range of a function is the complete set of all possible resulting values of the dependent variable (y, usually), after we have substituted the domain. .The range is the resulting y-values we get after substituting all the possible x-values.
Step-by-step explanation:
It’s algebra it says find each function value here is a picture of the work sheet
1.
8 > 1 so: a(x) = -4x + 7
a(8) = - 4(8) + 7 = - 32 + 7 = - 25
2.
-6 ≤ 1 ≤ 1 so: a(x) = 2x - x²
a(1) = 2(1) - (1)² = 2 - 1 = 1
3.
-7 ≤ -6 so: a(x) = |x - 8|
a(-7) = |-7 - 8| = |-15| = 15
4.
-6 ≤ -3 ≤ 1 so: a(x) = 2x - x²
a(-3) = 2(-3) - (-3)² = -6 - 9 = - 15
5.
-6 ≤ -¹/₂ ≤ 1 so: a(x) = 2x - x²
a(-¹/₂) = 2(-¹/₂) - (-¹/₂)² = - 1 - ¹/₄ = - 1¹/₄
6.
⁹/₄ > 1 so: a(x) = -4x + 7
a(⁹/₄) = - 4(⁹/₄) + 7 = - 9 + 7 = - 2
Find the volume (m^3) of the rectangular prism. 5 m 10 m 4 m
Answer:
200m^3.
Step-by-step explanation:
Volume of a rectangular prism = lenght x width x height.
(5m)(10m)(4m) = 200m^3.
What is the sum of the polynomials x2 9 3x2 11x 4 4x2 2x 4?
The adding the polynomials we get -4x2 - 11x - 5.
What are polynomials?An expression that consists of variables, constants, and exponents that is combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial (No division operation by a variable).A polynomial is a mathematical statement made up of coefficients and indeterminates that uses only the operations addition, subtraction, multiplication, and powers of positive integers of the variables. x2 4x + 7 is an illustration of a polynomial with a single indeterminate x.Given, the polynomials are (-x2 + 9) and (-3x2 - 11x + 4).
The sum of the polynomials = (-x2 - 9) + (-3x2 - 11x + 4)
The sum of the polynomials is found by removing the parathesis and grouping the like terms.
-x2 - 9 + -3x2 - 11x + 4
= -x2 - 3x2 - 11x - 9 + 4
= -4x2 - 11x - 5
Therefore, the adding the polynomials we get -4x2 - 11x - 5.
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Prove the identity a p(p−1) ≡ 1 (mod p 2 ), where a is coprime to p, and p is prime. (Hint: Try to mimic the proof of Fermat’s Little Theorem from the notes.)
To prove this identity, we start with Fermat's Little Theorem, which states that if p is a prime number and a is any integer coprime to p, then a^(p-1) ≡ 1 (mod p).
Using this theorem, we can rewrite the given identity as a^(p-1) * a(p-2) ≡ 1 (mod p^2).
Next, we can multiply both sides by a to get a^(p-1) * a(p-1) ≡ a (mod p^2).
Since a and p are coprime, we can use Euler's Totient Theorem, which states that a^φ(p) ≡ 1 (mod p) where φ(p) is the Euler totient function. Since p is prime, φ(p) = p-1, so a^(p-1) ≡ 1 (mod p).
Using this result, we can rewrite our identity as a^(p-1) * a(p-1) * a^-1 ≡ a^(p-1) ≡ 1 (mod p), which implies that a^(p-1) ≡ 1 (mod p^2).
Therefore, we have proven the identity a p(p−1) ≡ 1 (mod p 2 ), where a is coprime to p, and p is prime.
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Find x to the nearest degree
Answer:
56°
Step-by-step explanation:
call the unknown side length L.
then 5² + L² = 9²
L² = 9² - 5²
=81 - 25
= 56
L =√56
(sin x)/√56 = (sin 90)/9
sin x = (√56 X sin 90)/9 = √56 /9
x = sin^-1 (√56 / 9)
= 56.25°
= 56° to nearest degree
Write the equation for the yellow line. (please help)
Answer:
5 2 thats them so 5 2 that them
$35 sweater ; 18% discount ; 3% tax ; find sales price
Answer: $27.65
Step-by-step explanation:
0.18 = 6.3
Discount = $6.3
0.03 = 1.05
Tax = 1.05
35 - 6.3 - 1.05 = 27.65
ASSUME THAT 13% OF PEOPLE ARE LEFTHANDED, IF WE RANDOMLY SELECT 12 PEOPLE FROM THIS POPULATION, WHAT IS THE PROBABILITY THAT THEY ARE NOT ALL RIGHT HANDED
It is simpler to compute the likelihood of the complement event when calculating probabilities since you can then just subtract it from 1 to determine the probability.
What do probability and example mean?the variety of strategies for success. all events that could possibly occur.
Since 13% of people are lefties and 87% are righties, we'll assume that everyone is either a righty or a lefty, thus the decimal percentage of 0.87 divided by the total number of participants, 12, is the mean.
P(Right handed) = 1 - 0.13 = 0.87 where P(Left handed) = 0.13 and P(Right handed) = 0.13 12 people make up the nth number. The binomial probability distribution will be used in this case, and it can be computed using the formula P(X = n|N,p) = NCn*(pn)*(1-p) (N-n).
where p is the chance of success and n is the sample size, or 12, in this case. Additionally, q represents the 0.13 failure chance.
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P(Right handed) = 1 - 0.13 = 0.87 where P(Left handed) = 0.13 and P(Right handed) = 0.13 12 people make up the nth number. It is simpler to compute the likelihood of the complement event when calculating probabilities.
What do probability and example mean?the variety of strategies for success. all events that could possibly occur.
Since 13% of people are lefties and 87% are righties, we'll assume that everyone is either a righty or a lefty, thus the decimal percentage of 0.87 divided by the total number of participants, 12, is the mean.
P(Right handed) = 1 - 0.13 = 0.87 where P(Left handed) = 0.13 and P(Right handed) = 0.13 12 people make up the nth number. The binomial probability distribution will be used in this case, and it can be computed using the formula P(X = n|N,p) = NCn*(pn)*(1-p) (N-n).
where p is the chance of success and n is the sample size, or 12, in this case. Additionally, q represents the 0.13 failure chance.
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texting and concentration scenario: an instructor at los medanos college conducted an experiment with her statistics class to study the effect of texting on concentration. she created two audio clips in which she read two different lists of words. the treatment required students to send a short text message to a friend while listening to one of the audio clips. in the control setting, students simply listened to one of the audio clips. everyone wore earphones and listened to the audio clips in the same order. but a coin flip determined who was and was not texting each time. after each listening session, students had 2 minutes to write down all the words they could remember. twenty three students participated in the experiment. answer the following questions to test a hypothesis based on this scenario. geogebra probability calculator links to an external site. flag question: question 1 question 11 pts what is the null hypothesis? [ select ] what does represent in the null hypothesis?
The null hypothesis is that there is no significant difference in the number of words remembered between the group that texted during the audio clip and the group that did not. The symbol "H0" represents the null hypothesis.
Based on the texting and concentration scenario, let's identify the null hypothesis and what "p" represents in it.
Null hypothesis (H0): There is no significant difference in the number of words remembered by students when they are texting versus when they are not texting during the audio clips. In other words, texting has no effect on concentration.
The null hypothesis is a statistical assumption that says there is no statistical significance in a group of observations. Hypothesis testing is used to test the reliability of a hypothesis using sample data. It is sometimes called "blank" and stands for H0. The null hypothesis, also known as the Conjecture is used in quantitative analysis to test a theory about business, investment, or the economy to determine whether the idea is true or false.
In this hypothesis, "p" represents the difference in the proportions of words remembered while texting and not texting. If p = 0, it means there is no difference in the students' concentration between the treatment (texting) and control (not texting) groups.
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a marathon ran 26.2 miles in 2 hours and 30 minutes. how many miles did he run in one hour?
Answer:
10.48 miles ran in one hour .
Credit Card StatementCalculate the newPrevious Balance $125.00 balance on thisFinance Charge $16.00 account after theseNew Purchases$120.00 charges andPayments $(150.00)payments areCredits$0.00 applied.A $161.00B. $111.00C. $171.00D. $411.00
This is a credit balance problem. Listed the previous balance, finance charge, new purchases, payments, and credits, the new balance can be calculated by summing up the previous balance, finance charge, and new purchases then subtracted to the sum of payments and credits. Applying this calculation, the new balance for the credit card is
\(\begin{gathered} Balance=\$125.00+\$16.00+\$120.00-(\$150.00-\$0.00) \\ \text{Balance}=\$111.00 \end{gathered}\)Answer: B. $111.00
can you please help me with this thanks
Answer: 6
Step-by-step explanation:
in a 30 60 90 triangle the hypothenuse is \(2a\), long side is \(a\sqrt{3}\), and the short side is \(a\)
a market research firm is interested in determining the proportion of households that are watching a particular sporting event. to accomplish this task, they plan on using a poll of randomly chosen households. how large a sample is needed if they want to be 90 percent certain that their estimate has a margin of error less than .02?
The percent estimate should be a minimum of 0.5.
Given that,
A market research firm is interested in determining the proportion of households that are watching a particular sporting event. to accomplish this task, they plan on using a poll of randomly chosen households. how large a sample is needed if they want to be 90 percent certain that their estimate has a margin of error of less than 0.02
\([\widehat{p} - \tau_{0.9875} \sqrt{\frac{\widehat{p} (1-\widehat{p})}{n}}, \widehat{p} + \tau_{0.9875} \sqrt{\frac{\widehat{p} (1-\widehat{p})}{n}}], \\Given that, 2* \tau_{0.9875}\sqrt{\frac{\widehat{p}(1-\widehat{p})}{n}} = 2 * 0.015\\i.e. \sqrt{\frac{\widehat{p}(1-\widehat{p})}{n}} = 0.0067 \\i.e. \sqrt{n} = \sqrt{\widehat{p}(1-\widehat{p})} / 0.0067\\Now \sqrt{\widehat{p}(1-\widehat{p})}\)
It is minimum when \(\widehat{p}\)= 0.5
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john has a full tank of gas in his car. his car has a 15-gallon tank. his car gets 30 miles per gallon. which equation shows the relationship between how many miles, m, John drives and the number of gallons of gas, g , remain in the car's tank?
Answer:
You would multiply 30x15 to get 450miles per tank of gas.
Step-by-step explanation:
HELPPP ON GEOMETRY PLZZ!!! No links i will report.
Answer:
J) is multiplied by 4
Step-by-step explanation:
The average house price in London in 2017 was £474902
The average house price in London in 2018 was £469538
Calculate the percentage change in house prices between 2017 and 2018.
Give your answer correct to 1 decimal place.
The percentage change in house prices between 2017 and 2018 is -1.13%.
Percentage can be described as a fraction of a number expressed as a number out of hundred. The sign used to represent percentages is %.
In order to determine the percentage change in average house price, the difference between average housing pricing in 2018 and 2017 would be divided by the average house price in 2017 and the result would be multiplied by 100.
Percentage change = [(£469538 - £474902) / £474902] x 100 = -1.13%
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Determine whether each equation has no solution, one solution, or infinitely many solutions.
Drag each equation to the correct location on the table.
Answer:
Step-by-step explanation:
No solution - 2y – 3 = 5 + 2(y – 1), one solution - (1/5)f – 2/3 = – (1/5)f + 2/3, 4a – 3 + 2a = 7a – 2, infinitely many solution - [-3(n + 4) + n = -2(n + 6)], -1.7v + 2.8 = 1.4v – 3.1v + 2.8.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
If the exponent of the variable is one, then one solution.
If both sides are zero, then no solution.
And if the variable is eliminated, then the infinitely many solutions.
-1.7v + 2.8 = 1.4v – 3.1v + 2.8, it has infinitely many solutions.
4a – 3 + 2a = 7a – 2
a = -1, it has one solution.
(1/5)f – 2/3 = – (1/5)f + 2/3
f = 5/3, it has one solution.
2y – 3 = 5 + 2(y – 1)
0 = 0, it has no solution.
-3(n + 4) + n = -2(n + 6), it has infinitely many solutions.
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) what is the expected value of the distribution that you have created? note that distribution is not the same as data. you have to apply what you know from theory to answer this question.
The expected value of a distribution is the weighted average of all possible values that a random variable can take on.
The expected value of a distribution is calculated by multiplying each possible value by its probability and then summing all of these products.
In other words, the expected value is the mean of the distribution.
To calculate the expected value of a distribution, you can use the following formula:
E(X) = ∑xP(x) , where
E(X) = the expected value,
x = possible value of the random variable,
P(x) = the probability of that value occurring.
For example, let's say we have a distribution with the following values and probabilities:
x: 1 2 3 4 5
P(x): 0.1 0.2 0.3 0.2 0.2
To calculate the expected value, we would multiply each value by its probability and then sum the products:
E(X) = ∑xP(x)
= (1)(0.1) + (2)(0.2) + (3)(0.3) + (4)(0.2) + (5)(0.2)
= 0.1 + 0.4 + 0.9 + 0.8 + 1.0
= 3.2
So, the expected value of this distribution is 3.2.
It is important to note that the expected value is a theoretical value and may not necessarily be observed in actual data. However, it is a useful measure for understanding the central tendency of a distribution.
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Your friends and you notice a classmate who always has brand new clothes, shoes, and electronics. What would you need to know in order to tell if this classmate’s family is actually wealthy?
To know if the classmate’s family is actually wealthy, one will need to know their assets and their debt.
What is an asset?In financial accounting, an asset means a resource that is owned or controlled by a business or an economic entity. An asset is anything that can be used to produce positive economic value.
Assets represent the value of ownership that can be converted into cash and the examples of personal financial assets include cash and bank accounts, real estate, personal property like furniture and vehicles, and investments such as stocks, mutual funds, and retirement plans.
In this case, through the assets, one will be able to know that they're wealthy. The debt is an obligation that requires one party, the debtor, to pay money or other agreed-upon value to another party, the creditor. This is the money that they owe.
The asset should more than the debt.
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What is the measure of angle b?
Answer:
b=36
Step-by-step explanation:
by triangle exterior theorem
b+81 = 117
b=36
Answer:
B is 36 degrees, and a is 63 degrees
Step-by-step explanation:
180 - 117 = 63
a = 63 degrees
81 + 63 + b = 180
144 + b = 180
180 - 144 = b
36 degrees = b
A baseball team loses $100,000 for each consecu-tive day it rains. Say X, the number of consecutive days it rains at the beginning of the season, has a Poisson distri-bution with mean 0.2.What is the expected loss before the opening game?
To calculate the expected loss before the opening game, we need to find the expected number of consecutive rainy days (X) and multiply it by the amount lost per day.
Given that X, the number of consecutive rainy days, follows a Poisson distribution with a mean of 0.2, the expected value or average is equal to the mean.
Expected value of X = Mean = 0.2.
Since the team loses $100,000 for each consecutive rainy day, the expected loss for each day is $100,000.
Therefore, the expected loss before the opening game can be calculated by multiplying the expected number of consecutive rainy days by the loss per day: Expected Loss = Expected value of X * Loss per day
= 0.2 * $100,000
= $20,000.
Thus, the expected loss before the opening game is $20,000.
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help me pls!!! 8th grade math. it’s due today ;-;