One cube has edge length of 3 cm. A larger cube has edge length of 8 cm. What is the ratio of the surface area of the smaller cube to the surface area of the larger cube in the simplest form?
Answers
Answer:
54:384
the simplest form is 9:64
Related Questions
The graph of y = x² - 2x - 3:
Answers
The range of values for which x²–2x -3 > 0 is
x < -1 and x > 3
Any equation in algebra that can be written in the standard form where x is an unknown value and a, b, and c are known integers, where a≠0 is a quadratic equation.
By solving the quadratic expression
x²–2x -3 > 0
Find two numbers that is a factor of -3 such that on adding them the answer is -2
that is
(1)(-3) = -3
(1)+(-3) = -2
x² -3x +x -3 > 0
By factorization;
x(x-3)+1(x-3) > 0
(x + 1)(x - 3) > 0
Therefore;
(x+1) > 0 and (x - 3) > 0
x < -1 and x > 3
The range of values for which x²–2x -3 > 0 is x < -1 and x > 3
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if the alpha level is changed from 0.05 to 0.01, what effect does this have on beta?
Answers
Answer:
beta increases
Step-by-step explanation:
An online pet store ships two cases of dogs and four bags of treats the dog food weighs 13 1/2 ounces per camp and there are 12 cans in the case the dog treats are shown right and evaluate an expression to show the total weight of the items
Answers
The total weight of the items is 29.25 lb.
What is Unitary Method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.
For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.
12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.
As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.
This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.
Given:
The wight of one can = 13 1/2 = 27/2 pounce
and, number of cans in one case = 12
So, total weight of the items
= 1/16 ( 27/2 x 12 x 2)+ 4x 2.375
= 1/16 ( 324) + 9.5
= 81/4 + 9.5
= 20.25+ 9.5
= 29.25 lb
Hence, the weight is 29.25 lb.
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what is the probability that the number of calls among the 25 that involve a fax transmission exceeds the expected number by more than 2 standard deviations? (round your answer to three decimal places.)
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0.003 is the probability that the number of calls among the 25 that involve a fax transmission exceeds the expected number by more than 2 standard deviations
To calculate the probability that the number of calls among the 25 that involve a fax transmission exceeds the expected number by more than 2 standard deviations.The mean is the expected number of calls involving a fax transmission, while the standard deviation is the measure of variability in the distribution. We then use this information to calculate the probability of exceeding the expected number by more than 2 standard deviations, which can be done using the z-score formula. The z-score for values more than 2 standard deviations away from the mean is 2.33, which corresponds to a probability of 0.003. Thus, the probability that the number of calls among the 25 that involve a fax transmission exceeds the expected number by more than 2 standard deviations is 0.003.
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Delicious Bakery is delivering a cheesecake to a customer in a square pie box that has a base that measures 10 inches. The diameter of the cheesecake is 9 inches. After the cheesecake is packaged, how much of the box’s base is visible? Round to the nearest tenth
Answers
After packaging the cheesecake, approximately 24.3 square inches of the box's base is visible.
The area of a square with a side length of 10 inches is:
A = (side length)^2 = (10 in)^2 = 100 sq in
The area of a circle with diameter 9 inches is:
A = πr^2 = (π/4)(diameter)^2 = (π/4)(9 in)^2 ≈ 63.62 sq in
To find out how much of the box's base is visible after the cheesecake is packaged, we need to subtract the area of the circle from the area of the square:
visible area = area of square - area of circle
≈ 100 sq in - 63.62 sq in
≈ 36.38 sq in
However, we need to round this value to the nearest tenth, since the problem asks for an approximation. Rounding to one decimal place gives us:
visible area ≈ 36.4 sq in
Therefore, after packaging the cheesecake, approximately 24.3 square inches of the box's base is visible.
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Question 3 of 40
Suppose the linear regression line y = 2.125x - 33.121 predicts a lemonade
stand's profits based on the number of cups sold. If x represents the number
of cups sold, and y represents the lemonade stand's profits in dollars, about
how much can the lemonade stand expect in profits if it sells 425 cups?
A. $930
B. $900
C. $870
D. $840
SUBMIT
Answers
Answer:
C is the correct answer
Step-by-step explanation:
A P E X
Answer: C. 870 is the correct answer
Step-by-step explanation:
The probability that the interval estimation procedure will generate an interval that does not contain the actual value of the population parameter being estimated is the?
Answers
The probability that the interval estimation procedure will generate an interval that does not contain the actual value of the population parameter being estimated is the confidence coefficient.
Simply put, probability is the likelihood that something will occur. When we don't know how an event will turn out, we can discuss the likelihood or likelihood of several outcomes. Statistics is the study of events that follow a probability distribution.
The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.
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Given the following test scores, find a 95 percent confidence interval for the population mean: 148, 154, 158, 160, 161, 162, 166, 170, 182, 195, 236. Assume population normality
Answers
A 95% confidence interval for the population mean can be calculated by finding the sample mean and the margin of error for a given level of confidence.
To do this, we need to find the sample mean and standard deviation of the sample data and then use the standard error of the mean.
Here are the steps to calculate the 95% confidence interval:
Calculate the sample mean:
The sample mean is calculated by summing up all the sample data points and dividing by the total number of data points:
Sample mean = (148 + 154 + 158 + 160 + 161 + 162 + 166 + 170 + 182 + 195 + 236) / 11 = 167.36
Calculate the sample standard deviation:
The sample standard deviation is calculated as follows:
Sample standard deviation = sqrt(((148-167.36)^2 + (154-167.36)^2 + (158-167.36)^2 + (160-167.36)^2 + (161-167.36)^2 + (162-167.36)^2 + (166-167.36)^2 + (170-167.36)^2 + (182-167.36)^2 + (195-167.36)^2 + (236-167.36)^2) / 11-1) = 33.07
Calculate the standard error of the mean:
The standard error of the mean is calculated as follows:
Standard error of the mean = sample standard deviation / sqrt(sample size) = 33.07 / sqrt(11) = 11.11
Calculate the margin of error:
The margin of error is calculated as follows:
Margin of error = t-value * standard error of the mean
where t-value is the critical value from the t-distribution table for a given degree of freedom and level of confidence. For a 95% confidence level and 10 degrees of freedom, the t-value is approximately 1.833.
Margin of error = 1.833 * 11.11 = 20.53
Calculate the lower and upper bounds of the confidence interval:
The lower and upper bounds of the confidence interval are calculated as follows:
Lower bound = sample mean - margin of error = 167.36 - 20.53 = 146.83
Upper bound = sample mean + margin of error = 167.36 + 20.53 = 187.89
Therefore, the 95% confidence interval for the population mean is [146.83, 187.89]. This means that we are 95% confident that the true population mean lies between 146.83 and 187.89.
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which of the following expressions is equal to -20
Answers
Answer:
no expression is equal to -20
Which is the graph of y= 3/4x-3?
Graph C
Graph B
Graph A
Answers
a box of donuts containing 2 maple bars, 6 chocolate donuts, and 4 custard filled donuts is sitting on a counter in a work office. kelsi comes along and decides to eat two in a row. what is the probability that kelsi will eat a custard filled donut and then a chocolate donut? round your answer to 4 decimal places.
Answers
The probability that Kelsi will eat a custard filled donut and then a chocolate donut is approximately 0.1455.
How calculate the probability of Kelsi eating a custard filled donut?To calculate the probability of Kelsi eating a custard filled donut and then a chocolate donut, we need to use the concept of conditional probability.
The probability of Kelsi eating a custard filled donut first is 4/12 (since there are 4 custard filled donuts out of a total of 12 donuts).
After Kelsi eats a custard filled donut, there are only 11 donuts left, and 6 of them are chocolate donuts. So the probability of Kelsi eating a chocolate donut second, given that she already ate a custard filled donut, is 6/11.
To find the probability of both events happening together (Kelsi eating a custard filled donut first and a chocolate donut second), we multiply the probabilities:
P(custard first and chocolate second) = P(custard first) * P(chocolate second | custard first)
P(custard first and chocolate second) = (4/12) * (6/11)
P(custard first and chocolate second) = 0.1455
Rounding to 4 decimal places, we get:
P(custard first and chocolate second) ≈ 0.1455
Therefore, the probability that Kelsi will eat a custard filled donut and then a chocolate donut is approximately 0.1455.
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What is 1131 divided by 29?
Answers
Answer:
39
Step-by-step explanation:
used a calculator
Explaination:
The figure does not have enough information to state that the two triangles are similar. Explain why you can not prove the triangles similar? What additional information would be needed? (worth 20 points)
Answers
Answer:
We can't prove it equal because the measures are different, it cannot be proved through AAS, ASA, SAS or SSS
angle U=Angle R
but UW≠ RT &RS
Step-by-step explanation:
which of these coefficients are statistically significant at a significance level of 0.05? which of these coefficients are statistically significant at a significance level of 0.01?
Answers
On solving the provided question, we got - 0.001 is a stronger significance level,
What is Coefficient?any of a product's characteristics taken into account in respect to a certain characteristic. especially: a term's constant component as opposed to its variable. a value that represents a quality or attribute by a number (as of a substance, device, or process)
Describe a coefficient example.Whenever a variable is multiplied, a coefficient is used. In this case, "z" is a variable, making 6 a coefficient. 6z stands for 6 times z. Coefficient 1 applies to variables without a value.
0.001 is a stronger significance level, It means that the probability of error for the statistic is greater than 5 in 100, therefore the researchers concluded that the research is not statistically significant.
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Adrian bought a car worth $12000 on 36 easy installments of $375. Answer the following questions. (1) How much total amount did Adrian pay in 36 months? Answer: Total payment A = $ (2) Identify the letters used in the simple interest formula I = Prt. I= $ P= $ and t years. (3) Find the rate of interest in percentage. Answer: r %. ASK YOUR TEACHER
Answers
3) since we don't have the information about the interest paid (I), we cannot determine the rate of interest at this time.
(1) To find the total amount Adrian paid in 36 months, we can multiply the monthly installment by the number of installments:
Total payment A = Monthly installment * Number of installments
= $375 * 36
= $13,500
Therefore, Adrian paid a total of $13,500 over the course of 36 months.
(2) In the simple interest formula I = Prt, the letters used represent the following variables:
I: Interest (the amount of interest paid)
P: Principal (the initial amount, or in this case, the car worth)
r: Rate of interest (expressed as a decimal)
t: Time (in years)
(3) To find the rate of interest in percentage, we need more information. The simple interest formula can be rearranged to solve for the rate of interest:
r = (I / Pt) * 100
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Brent knows that the six digit number he uses to open his computer is the prime factorization of 5005 if each digit of the code increases from left to right
Answers
Answer:
The code is 571113
Step-by-step explanation:
The problem requires that we find the prime factors of 5005
1. 5005 is a multiple of 5 since it ends with a number 5
5 is one of the numbers
Dividing 5005/5 = 1001
the next prime number after 5 is 7
so 1001/7= 143
7 is one of the numbers
the next prime number after 7 is 11
so 143/11= 13
13 is one of the numbers
In all the prime factorization of 5005 is found as follows
5,7 11,13
Combining these numbers gives the 6 digit code
571113
HELP ME PLZ
The mass of the Rock of Gibraltar is 1.78 ⋅ 1012 kilograms. The mass of the Antarctic iceberg is 4.55 ⋅ 1013 kilograms. Approximately how many more kilograms is the mass of the Antarctic iceberg than the mass of the Rock of Gibraltar? Show your work and write your answer in scientific notation.
Answers
Step-by-step explanation:
1.78 . 1012. 4.55 . 1013
ANS. 1,801.36. ANS. 4,609.15
4609.15 - 1801.36 = 2,80679 kilogram
they are 2,806.79 kilogram aparts
Answer:
Part A: X=0 because all math problems held to the 0th power equal 1.
Part B: X=1 because 6^0=1. And for the answer to be 1, X=1.
Step-by-step explanation:
Consider the following scenario to understand the relationship between marginal and average values. Suppose Lorenzo is a professional b. player, and his game log for free throws can be summarized in the following table.
Answers
The missing points from the Column is:
Game Free-Throw Percentage: 60 20 60 80
Average Free-Throw Percentage: 70 60 55 56.67
Game Game Total Game Average
Result Free-Throw Free-Throw
Percentage Percentage
1 8/10 8/10 80 80
2 6/10 14/20 60 70
3 1/5 15/25 20 60
4 3/5 18/30 60 55
5 8/10 26/40 80 56.67
In the "Total" column, we keep track of the cumulative number of successful free throws out of the total attempts.In the "Game Free-Throw Percentage" column, we calculate the percentage of successful free throws made in each game.In the "Average Free-Throw Percentage" column, we calculate the average free-throw percentage up to that game by dividing the cumulative successful free throws by the cumulative total attempts and multiplying by 100.Learn more about Cumulative Frequency here:
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The question attached here seems to be incomplete, the complete question is
Fill in the columns with Dmitri's free-throw percentage for each game and his overall free-throw average after each game.
Game Game Result Total Game Free-Throw Percentage Average Free-Throw Percentage
1 8/10 8/10 80 80
2 6/10 14/20
3 1/5 15/25
4 3/5 18/30
5 8/10 26/40
Two planes take off at the same time from an airport. The first plane is flying at 210 miles per hour on a bearing of S 45.0° E. The second plane is flying in the direction S 45.0°W at 265 miles per hour. If there are no wind currents blowing, how far apart are they after 5 hours? (Round your answer to two decimal places.)
What is the bearing of the second plane from the first after 5 hours? (Round your answer to one decimal place.)
Answers
The distance between the two planes is 525.30 miles, and the bearing of the second plane from the first after 5 hours is S 52.9° W.
We use the Pythagoras theorem to find the distance between the planes. By applying Pythagoras' theorem, we can find the distance between the two planes which is given by: d² = a² + b²
d² = (210 × 5)² + (265 × 5)² = 275625
d = 525.30 miles (rounded to two decimal places).
We will use the formula for the bearing angle in right-angled triangles to find the bearing of the second plane from the first after 5 hours. tanθ = opp/adj, where θ is the bearing angle, opp is the opposite side, and adj is the adjacent side.
Here, the adjacent side is the distance between the planes which is 525.30 miles, and the opposite side is 265 × 5 miles since the second plane flies in the direction of S 45.0°W. θ = tan⁻¹(265 × 5 / 525.30) = tan⁻¹(1.33) = 52.9° (rounded to one decimal place).
Therefore, the distance between the two planes is 525.30 miles, and the bearing of the second plane from the first after 5 hours is S 52.9° W.
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Translate the inequality and solve. Three times a number is greater than six. 1 point
Answers
Answer:
3x > 6
x > 2
Step-by-step explanation:
What is the solution of y= 4x + 6 when y= 18?
Answers
Answer:
18 = 4(3)+6
12 + 6
Step-by-step explanation:
the answer is 18 = 4(3)+6
because y is 18
Answer:
x=3
Step-by-step explanation:
\(18 = 4x + 6\)
subtract 6 on both sides
\(12 = 4x\)
divide both sides by 4
\(3 = x\)
the sales tax for an item was $7.80 and it cost $390 before tax. find the sales tax rate. write your answer as a percentage.
Answers
$390 represent 100%. To find what percentage $7.80 represent, we can use the next proportion:
\(\frac{390\text{ \$}}{7\text{.8 \$}}=\frac{100\text{ \%}}{x\text{ \%}}\)Solving for x,
\(\begin{gathered} 390\cdot x=100\cdot7.8 \\ x=\frac{780}{390} \\ x=2\text{ \%} \end{gathered}\)The sales tax rate is 2%
need help A S A P NOWWWWW
Answers
Answer:
x = 73
Step-by-step explanation:
The measure of the sum of the arcs in a circle = 360°.
Sum the given arc measures and equate to 360, that is
95 + 52 + 67 + 2x = 360
214 + 2x = 360 ( subtract 214 from both sides )
2x = 146 ( divide both sides by 2 )
x = 73
Tell whether each pair of ratios below is equal.
7/22 11/33
35:14, 10:25
3 to 18, 5 to 30
Answers
Answer:
7/22 is not equal to 11/33 ratio
35/14 is not equal to 10/25 ratio
3/18 is an equal to 5/30 ratio
hey! please help i’ll give brainliest
Answers
Answer:
all of these option 4 is correct
Answer:
The answer is the ( are )
Step-by-step explanation:
A small jar holds 75% as much as a large jar. If the small holds 36 ounces, how many ounces does the large hold? Explain your reasoning.
Answers
Answer:
48 ounces
Step-by-step explanation:
x = small jar
y = large jar
x= 0.75y
36= 0.75y
y = 48
Answer:
the answer is 48 ounces i took that on my test I'm positive
Step-by-step explanation:
Gavin can type 3600 words in 60 minutes.
Dan can type 3850 in 70 minutes.
Colin can type 3500 words in 70 minutes.
Who types at the fastest rate of words per minute?
Answers
Answer:
Dan
Step-by-step explanation:
Answer:
Gavin
Step-by-step explanation:
3600/60=60 word/s
3850/70= 55 words/s
3500/70= 50 words/s
60>55>50
What is the volume of the rectangular prism?
I need a lot of help bro
Answers
please help! i can never understand these problems
Answers
Answer:
1234567891011121314151617181920
what is the value of the expression (a^3 + b^0)^2 where a = -2 b = 4 ?
Answers
Answer:
1938
Step-by-step explanation:
ITIS BECAUS.....SJFJCJAJ WHER FICOAK WERE KFKCKA
Answer:
When a = -2 and b = 4, this expression is equal to 49
Step-by-step explanation:
You can solve this by simply plugging in the given values and solving:
((-2)³ + 4⁰)²
= (-8 + 1)²
= -7²
= 49