Answer:
Kindly check explanation
Step-by-step explanation:
The number of blue whales residing in a particular ocean is estimated to be four. Find the estimated amount of kills the blue whales would have consumed by the turn of the year.
Given that:
Amount of krills consumed per year = 1460000
Number of Blue whales = 4
Hence, the estimated consumption of the blue whales will be :
Number of Blue whales * estimated consumption per whale :
(4 * 1460000) = 5840000
Hence,
Estimated consumption of the Blue whales per year = 5.84 × 10^6
I need help this makes no sense
Answer:
m 10 is : 123
m 15 is: 123
m 16 is : 57
Step-by-step explanation:
To get m 10: I subtracted 180-57 and got 123.
To get m 15: I did not need to do anything for that because m10 and m15 are the opposite of each other which means there angle measure is the same.
To get m 16: I did not need to do anything because m9 is the opposite of m 16 which makes their angle measure the same.
Describe corresponding elements and give an example,
Answer:
what do you mean exactly, i really wanna help
HELP PLEASE
Choose the equation that Choose the equation that represents a line that passes through points (-6, 4) and (2,0)
A. x + 2y = 2
B. 2x - y = -16
C. x + 2y = -8
D. 2x + y = 4
Answer:
A
Step-by-step explanation:
m = (0 - 4) / [(2 - (-6)]
= -4 / 8
= -1/2
Use (-6, 4) to find for b:
y = mx + b
4 = -1/2 (-6) + b
4 = 3 + b
4 - 3 = b
1 = b
Therefore the equation is:
y = mx + b
y = -1/2 x + 1
or 2y = -x + 2
Plz help ASAP Will mark u brainliest
Answer:
60 square feet
Step-by-step explanation:
area= length*width
a=5*12
a=60
Answer: 60 ft²
Step-by-step explanation: To find the area of the rectangular bedroom wall, we use the formula for the area of a rectangle, A = lw.
Since the length of the rectangle is 12 feet and the width of the rectangle
is 5 feet, we plug this information into the formula for length and width
and we have (12 ft)(5 ft) which simplifies to 60 ft².
So the area of the rectangular bedroom wall is 60 ft².
Y=2/3x-1
2x-3y=31
HELPPP
Answer:
No answer
Step-by-step explanation:
The two equations are : Y = 2/3x-1 and Y = 2/3x -31. There is no answer.
For one Chemistry test, Joan had to answer 40 questions. Of these 40 questions, Joan answered 22 of them correctly. What percent did Joan get on her Chemistry test? Round your answer to the nearest whole number if necessary. *
Answer:
55%
Step-by-step explanation:
The total number of questions gotten correctly = 22
The total number of questions to be answered = 40
The percent of questions Joan got correctly is calculated as:
(The total number of questions gotten correctly/The total number of questions to be answered) × 100
22/40 × 100
= 55%
Find the slope of the line that passes through the points (–1, 6) and (2, 15)
Answer:
m=3
Step-by-step explanation:
\(\frac{15-6}{2-(-1)} =\frac{9}{3} =3\)
Can you help find m<1
Answer:
69 degrees
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the two opposite interior angles.
<1 = 39+ 30
<1 = 69
Answer the statistical measures and create a box and whiskers plot for the following
set of data.
3,6,6,9, 10, 12, 13, 14, 14
Min:
Q1:
Med:
03:
Max:
DUE FRIDAY PLEASE HELP WELL WRITTEN ANSWERS ONLY!!!!
Two normal distributions have the same mean, but different standard deviations. Describe the differences between how the two distributions will look and sketch what they may look like
The shape of the curves will be different due to the difference in standard deviation.
When two normal distributions have the same mean but different standard deviations, the distribution with the larger standard deviation will be more spread out or have more variability than the distribution with the smaller standard deviation. This means that the distribution with the larger standard deviation will have a wider spread of data points and a flatter peak, while the distribution with the smaller standard deviation will have a narrower spread of data points and a sharper peak.
To illustrate this, let's consider two normal distributions with a mean of 50. One has a standard deviation of 5, while the other has a standard deviation of 10. Here's a sketch of what they might look like:
Two Normal Distributions with the Same Mean and Different Standard Deviations
As you can see from the sketch, the distribution with the larger standard deviation (in blue) is more spread out than the distribution with the smaller standard deviation (in red). The blue distribution has a wider range of data points and a flatter peak, while the red distribution has a narrower range of data points and a sharper peak.
It's important to note that the area under both curves will still be the same, as the total probability must always equal 1. However, the shape of the curves will be different due to the difference in standard deviation.
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How do I solve (a+b)(3a-b)(2a+7b)
Please help
Answer:
Simplifying
-5 + -1(3a + b) + (2a + -7b) = 0
-5 + (3a * -1 + b * -1) + (2a + -7b) = 0
-5 + (-3a + -1b) + (2a + -7b) = 0
Remove parenthesis around (2a + -7b)
-5 + -3a + -1b + 2a + -7b = 0
Reorder the terms:
-5 + -3a + 2a + -1b + -7b = 0
Combine like terms: -3a + 2a = -1a
-5 + -1a + -1b + -7b = 0
Combine like terms: -1b + -7b = -8b
-5 + -1a + -8b = 0
Solving
-5 + -1a + -8b = 0
Solving for variable 'a'.
Move all terms containing a to the left, all other terms to the right.
Add '5' to each side of the equation.
-5 + -1a + 5 + -8b = 0 + 5
Reorder the terms:
-5 + 5 + -1a + -8b = 0 + 5
Combine like terms: -5 + 5 = 0
0 + -1a + -8b = 0 + 5
-1a + -8b = 0 + 5
Combine like terms: 0 + 5 = 5
-1a + -8b = 5
Add '8b' to each side of the equation.
-1a + -8b + 8b = 5 + 8b
Combine like terms: -8b + 8b = 0
-1a + 0 = 5 + 8b
-1a = 5 + 8b
Divide each side by '-1'.
a = -5 + -8b
Simplifying
a = -5 + -8b
Step-by-step explanation:
10. A box contains five and two-thirds cups of rice. If three fourths of the rice will
be used, how many cups of rice remained in the box?
14
D.
Therefore, after using three-fourths of the rice in the box, 4 and 1/4 cups of rice remained.
To find the number of cups of rice that remained in the box, we need to calculate three-fourths (3/4) of the total amount of rice in the box.
The total amount of rice in the box is given as five and two-thirds cups. To work with a fraction, we can convert the mixed number to an improper fraction:
5 and 2/3 = (5 * 3 + 2) / 3 = 17/3 cups
Now, we can find three-fourths (3/4) of 17/3:
(3/4) * (17/3) = (3 * 17) / (4 * 3) = 51/12 = 4 and 3/12 = 4 and 1/4 cups
Therefore, after using three-fourths of the rice in the box, 4 and 1/4 cups of rice remained.
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A point on a pre-image is currently located at (1, -3). The pre-image is translated 3 units right and 6 units up. What are the NEW coordinates for the point after the translation? Use graph paper to sketch the translation if needed. Question 3 options:
A. (3, 4)
B. (4, 3)
C. (7, 0)
D. (-2, 2)
Answer:
are you from k-12? bc if so im also stuck on this question
Step-by-step explanation:
Answer:(4,3)
Step-by-step explanation: 6+-3=3 and 1 to the right 3 times is 4
Lindsey bought a picnic basket originally priced at $40 but on sale for 50% off. After 10% sales tax, what was the total cost?
$
The total cost price of the basket is $22.
What is Discount ?
The discount is determined by dividing the purchase price by the item's par value. The discount is a type of cost price reduction or deduction for a product. It is primarily employed in consumer interactions when discounts on various goods are offered to customers. A percentage represents the discount rate.
Here ,
Original cost price of the basket = $40
After 50% offer the cost price of the bag is,
=> 40- 50% of 40
=> 40 - 20
=> $20.
Now the sales tax is 10% then,
=> 20+ 10% of 20
=> 20+ 2
=>$22
Therefore the total cost is $22 after discount.
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b) Determine the 8-point DFT of the following sequence. x(n) = (¹/2,¹/2,¹/2,¹/2,0,0,0,0} using radix-2 decimation in time FFT (DITFFT) algorithm.
The DITFFT algorithm divides the DFT computation into smaller sub-problems by recursively splitting the input sequence. Therefore, the 8-point DFT of the sequence x(n) = (1/2, 1/2, 1/2, 1/2, 0, 0, 0, 0) using the radix-2 decimation in time FFT algorithm is (2, 2, 0, 0).
To calculate the 8-point DFT using the DITFFT algorithm, we first split the input sequence into even-indexed and odd-indexed subsequences. The even-indexed subsequence is (1/2, 1/2, 0, 0), and the odd-indexed subsequence is (1/2, 1/2, 0, 0).
Next, we recursively apply the DITFFT algorithm to each subsequence. Since both subsequences have only 4 points, we can split them further into two 2-point subsequences. Applying the DITFFT algorithm to the even-indexed subsequence yields two DFT results: (1, 1) for the even-indexed terms and (0, 0) for the odd-indexed terms.
Similarly, applying the DITFFT algorithm to the odd-indexed subsequence also yields two DFT results: (1, 1) for the even-indexed terms and (0, 0) for the odd-indexed terms.
Now, we combine the results from the even-indexed and odd-indexed subsequences to obtain the final DFT result. By adding the corresponding terms together, we get (2, 2, 0, 0) as the DFT of the original input sequence x(n).
Therefore, the 8-point DFT of the sequence x(n) = (1/2, 1/2, 1/2, 1/2, 0, 0, 0, 0) using the radix-2 decimation in time FFT algorithm is (2, 2, 0, 0).
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A PE class has 48 students. One group of 24 students chooses to play volleyball. The teacher then divides the
remaining students into as many groups of 5 as possible to shoot baskets. After that the remaining students (not
on a volleyball or basketball team) climb the rock wall.
How many students climb the rock wall?
students
Subtraction is a mathematical operation that reflects the removal of things from a collection. The number of students who climbs the rock wall is 4.
What is subtraction?Subtraction is a mathematical operation that reflects the removal of things from a collection. The negative symbol represents subtraction.
The total number of students in the class is 48, out of these 48 students, 24 students choose to play volleyball. Therefore, the remaining students are 24 (48-24).
Students remaining after volleyball
= Total number of students - Number of students who play volleyball
= 48 - 24 = 24
Now, The teacher then divides the remaining students into as many groups of 5 as possible to shoot baskets. Therefore, the teacher divides the remaining 24 students into 4 groups of 5 people. After this, the number of students that are remaining is 4(24-20).
Students remaining after basketball
= Total number of students - Number of students who shoot basketball
= 24 - (4x5)
= 24 - 20 = 4
Further, the remaining students go for climbing the rock wall.
Hence, the number of students who climbs the rock wall is 4.
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what does the coefficient used to assess the internal consistency of a measure represent?
The coefficient used to assess the internal consistency of a measure typically refers to Cronbach's alpha coefficient.
What does the coefficient used to assess the internal consistency of a measure represent?The coefficient used to assess the internal consistency of a measure typically refers to Cronbach's alpha coefficient. This coefficient is a statistic that quantifies the internal consistency reliability of a scale or measure, specifically for measures with multiple items or indicators that are intended to measure the same underlying construct.
The coefficient ranges between 0 and 1, with higher values indicating greater internal consistency. Cronbach's alpha measures the extent to which the items in a scale or measure correlate with each other. It assesses how well the items are measuring the same underlying construct or concept.
In other words, the coefficient represents the proportion of variance in the observed scores that can be attributed to the true score, rather than measurement error or other extraneous factors. It indicates the degree to which the items in the measure are interrelated or consistent with each other, with higher values suggesting stronger internal consistency.
Researchers often use Cronbach's alpha to assess the reliability of scales in various fields, such as psychology, education, and social sciences, to ensure that the measure is measuring the construct consistently and accurately.
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What are the coordinates of the point on the
directed line segment from (-8, 8) to (7,-7)
that partitions the segment into a ratio of 1 to 4?
The coordinates of the point on the directed line segment is (-5,5)
In the given sum we are using the internal division formula which goes like: (x,y) = (nx₁ + mx₂)/(m+n), (ny₁ + my₂)/(m+n)
with the available data we can interpret that where m = 1 , n = 4 , (x₁,y₁) = (-8,8) , (x₂,y₂) = (7,-7)
substituting the given values in the above formulae
The coordinates of the point is :
(x,y) = (4(-8) + 1(7))/(1 + 4) , (4(8) + 1(-7))/(1 + 4)
= ( -32 + 7)/5, (32 - 7)/5
= (-25/5) , (25/5)
= (-5,5)
∴ (x , y) = (-5 , 5)
So here the coordinates are (-5 , 5) which directed line segment from (-8,8) to (7,-7) that partions the segment into a ratio of 1 to 4
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student researchers wanted to see whether a short delay between seeing a list of words and when people were asked to recall them would hinder memorization. the subjects were shown a list of words to memorize for 1 minute and were then given 1 minute to recall as many words as they could. each subject did this once with no delay between memorizing and recall and another time with a 30-second wait between memorizing and recall. they were randomly assigned the order of the two conditions. the number of words memorized under each condition can be found in the statcrunch data set memorizingwords. questions: use the appropriate simulation applet to calculate an approximate p-value. is there strong evidence that a short delay hinders the memorization process? explain.
The appropriate simulation applet to calculate an approximate p-value is 0.0077.
The strong evidence that a short delay hinders the memorization process is strong data suggests that a brief delay impairs memorization.
Delay or no delay, answer: the number of words remembered
The mean distance between words remembered with and without delay over time is null, or zero.
Alt: The mean distance in words remembered over the long term (with no delay minus with delay) is higher than 0.
Yes, the majority of the lines do skew to the right. The mean for no delay is 10.55 whereas that for with delay is 8.7.
The mean distance in words remembered is 1.85.
1)0.0077 as the p-value
2)Strong data suggests that a brief delay impairs memorization.
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a store offers a 20% discount what is the discount price of a T-shirt with a regular price of $18
Answer number 8 and 9 please
Answer:
15%
Step-by-step explanation:
number 8 is 15% because you divide 42 by 280 the number of people to get the pecent you ha e which is 15%
please help asap for a final
Amy will choose between two restaurants to purchase pizzas for her party. The first restaurant charges a delivery fee of $6 for the entire purchase and $13 per pizza. The second restaurant has no delivery fee and charges $16 per pizza.
Amy will choose the second restaurant to purchase pizza. Because the second one is cheaper.
What is addition?Combining objects and counting them as one big group is done through addition. In arithmetic, addition is the process of adding two or more integers together. Addends are the numbers that are added, and the sum refers to the outcome of the operation.
Given,
the first restaurant charges a delivery fee of $6 for the entire purchase and $13 per pizza.
The second restaurant has no delivery fee and charges $16 per pizza.
And Amy will choose between two restaurants to purchase pizzas for her party.
The cost of one pizza of the first restaurant:
Cost = delivery fee + price of one pizza
= $6 + $13
= $19
The cost of one pizza of the second restaurant:
Cost = delivery fee + price of one pizza
= $0 + $16
= $16
And 16< 19
The second restaurant is cheaper.
Therefore, Amy will choose the second restaurant to purchase pizza.
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184329 rounded to the nearest 100
Answer:
184300
Step-by-step explanation:
Answer:
184300
Step-by-step explanation:
the tens place is less than 5 so the hundreds place will stay the same
(when rounding all numbers after the one being rounded will turn to 0)
Samir and Kai are learning how to roller skate at the skate city roller rink. Samir has skated y laps around the rink. Kai has skated 4 fewer laps than Samir. write an expression that shows how many laps Kai has skated around the rink.
Answer:
x=y-4
Step-by-step explanation:
If Samir has skated y laps around the rink, then Kai has skated y - 4 laps around the rink.
So the expression that shows how many laps Kai has skated around the rink is: x=y-4
Answer:
Step-by-step explanation: patience. wyd here.
but the answer is x=y-4
Given the data cleanup problem of removing 0 values from a data set, the ____ algorithm scans a list from left to right and copies every legitimate value into a new list that it creates.
The copy over algorithm algorithm scans a list from left to right and copies every legitimate value into a new list that it creates.
According to the statement
We have given that the there is a algorithm which is used to data cleanup problem of removing 0 values from a data set, and scans a list from left to right and copies every legitimate value into a new list.
and we have to explain about that algorithm.
So,
Here we given that the algorithm copies and paste the values in the new files then
the algorithm is called the copy over algorithm.
So, The copy over algorithm is a a single specimen of something that occurs in a multiple edition, such as a book, article, etc. a matter to be reproduced in print or an imitation or reproduction of an original.
So, The copy over algorithm algorithm scans a list from left to right and copies every legitimate value into a new list that it creates.
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Factor completely x3 6x2 8x 48. (x − 6)(x2 − 8) (x − 6)(x2 8) (x 6)(x2 − 8) (x 6)(x2 8).
By takin common we got that factorization of \(x^3+6x^2+8x+48\) is \((x+6)(x^2+8)\)
What is factorization ?
factorization is writing a expression as a product of several factors.
Given polynomial
\(x^3+6x^2+8x+48\)
We can factorize it as
Taking \(x^2\) common from first two terms and 8x common from last two terms
\(x^2(x+6)+8(x+6)\)
Taking (x+6) common
\((x+6)(x^2+8)\)
By takin common we got that factorization of \(x^3+6x^2+8x+48\) is \((x+6)(x^2+8)\)
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Answer:
The answer is D (x+6)(x^2+8)
Step-by-step explanation:
im not the best at explaning but this is the only answer that makes sense have a good day! :)
HELP!!! PLS ASAP!!! GIVNG BRAINLIEST AND 60 P0INTS TO BEST ANSWERS AND MODELS FOR THESE 3 QUESTION!!! PLS HELP AS FAST AS U CAN!
Answer:
1. 5/12
2. 3/8
3. 1/4
Step-by-step explanation:
A simple random sample of 500 elements generates a sample proportion p= 0.81. Provide the 90% confidence interval for the population proportion (to 4 decimals). b.Provide 95% the confidence interval for the population proportion (to 4 decimals).
a) The 90% confidence interval for the population proportion is approximately (0.7777, 0.8423).
b) The 95% confidence interval for the population proportion is approximately (0.7737, 0.8463).
To calculate the confidence intervals for the population proportion, we can use the formula:
Confidence Interval = sample proportion ± margin of error
The margin of error can be calculated using the formula:
Margin of Error = critical value * standard error
where the critical value is determined based on the desired confidence level and the standard error is calculated as:
Standard Error = \(\sqrt{((p * (1 - p)) / n)}\)
Given that the sample proportion (p) is 0.81 and the sample size (n) is 500, we can calculate the confidence intervals.
a. 90% Confidence Interval:
To find the critical value for a 90% confidence interval, we need to determine the z-score associated with the desired confidence level. The z-score can be found using a standard normal distribution table or calculator. For a 90% confidence level, the critical value is approximately 1.645.
Margin of Error = \(1.645 * \sqrt{(0.81 * (1 - 0.81)) / 500)}\)
≈ 0.0323
Confidence Interval = 0.81 ± 0.0323
≈ (0.7777, 0.8423)
Therefore, the 90% confidence interval for the population proportion is approximately (0.7777, 0.8423).
b. 95% Confidence Interval:
For a 95% confidence level, the critical value is approximately 1.96.
Margin of Error = \(1.96 * \sqrt{(0.81 * (1 - 0.81)) / 500)}\)
≈ 0.0363
Confidence Interval = 0.81 ± 0.0363
≈ (0.7737, 0.8463)
Thus, the 95% confidence interval for the population proportion is approximately (0.7737, 0.8463).
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please help.list you has brainly.
An inequality for x that would give this rectangle an area of at least 117 ft³ is 3(x + 5) ≥ 117 and its solution is shown on the number line attached below.
How to calculate the area of a rectangle?Mathematically, the area of a rectangle can be calculated by using this formula:
A = LW
Where:
A represents the area of a rectangle.W represents the width of a rectangle.L represents the length of a rectangle.From the information provided, we have the following parameters:
Length, L = x + 5 feet.
Width, W = 3 feet.
Since the rectangle must have an area that is at least (greater than or equal to), we have;
A ≥ LW
3(x + 5) ≥ 117
Next, we would solve the inequality as follows;
3(x + 5) ≥ 117
3x + 15 ≥ 117
3x ≥ 117 - 15
3x ≥ 112
x ≥ 112/3
x ≥ 37.333
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A clinical trial was conducted to test the effectiveness of the drug zopiclone for treating insomrua in older subjects. Before treatment with zopiclone, 16 subjects had a mean wake time of 102.8 min. After treatment with zopiclone, the 16 subjects had a mean wake time of 98.9 min and a standard deviation of 42.3 min (based on data from "Cognitive Behavioral Therapy vs Zopiclone for Treatment of Chronic Primary Insomrua in Older Adults," by Sivertsen et al., Journal of the American Medical Association, Vol. 295, No. 24). Assume that the 16 sample values appear to be from a normally distributed population, and test the claim that after treatment with zopiclone, subjects have a mean wake time of less than 102.8 min. Does zopiclone appear to be effective?
A 98% confidence interval estimate of the mean wake time for a population with zopiclone treatments is 74.26 to 125.54.
What is a confidence interval?
A confidence interval (CI) is a range of values that, with a particular level of certainty, is likely to encompass a population value. A population mean that sits between an upper and lower interval is frequently stated as a percentage.
Here,
From the standard normal table, the z-critical value at 98% confidence interval is 2.33 so,
98%C.I. = µ ± z * σ / n = 98.90 ± 2.33 * 42.30 / sqrt of 16 = 98.90 ± 24.64 = 74.26 to 125.54
The mean wake time of 102.80 minutes before the treatment due to the mean wake time of 102.80 minutes included in the 98% confidence interval which is between 74.26 and 125.54. Zopiclone does not appear effective.
Hence, A 98% confidence interval estimate of the mean wake time for a population with zopiclone treatments is 74.26 to 125.54.
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