the average is the sum of the heights divided by the number of members of the team
\(undefined\)27L 600mL divided by 6
Answer:
4 L 600 mL
Step-by-step explanation:
1 L = 1000 mL
so 27 L 600 mL = 27000 + 600 = 27600 mL
27600/6 = 4600 mL
4 L 600 mL.
Convert to a mixed number and simplify 83/6 pls help pls give a explanation so i can understand pls thank you.
can someone please help try the best that you can
What is the length of the missing side of this triangle? *
Answer:
8.9
Step-by-step explanation:
- there are two given sides and its a right angle triangle so you can use pythagoras
- 12^2 = 8^2 + y^2
- rearrange
y = \(\sqrt{(12)^2 -(8)^2}\)
y = 8.9
This is just a question I had.
If Denny (random name) left to another country and he left the Tuesday of this week (June 20) and he left for a month, what day would he be back on? I though July 18 but I’m not sure. Pls help?
Answer:
Step-by-step explanation:
Well, since the length of a month can vary in the number of days, this answer can also vary.
For example, February is only 28 days long, while December is 31 days long.
That being said, the average length of all 12 months is 30.436875 days, so if Denny left to another country on June 20th, he would most likely be back July 19th of July 20th.
I hope this helps!
You intend to estimate a population mean with a confidence interval. You believe the population to have a normal distribution. Your sample size is 4.
Find the critical value that corresponds to a confidence level of 99.9%. Round to three decimal places.
The critical value is 9.925, rounded to three decimal places.
How to solveTo calculate the critical value for a 99.9% confidence level with a sample size of 4, we will use the t-distribution, since the population standard deviation is unknown.
The t-distribution is used when the sample size is small (usually n < 30) and the population standard deviation is unknown.
First, find the degrees of freedom (df) for the t-distribution, which is equal to the sample size (n) minus 1:
df = n - 1df = 4 - 1df = 3Next, we need to find the critical value (t) that corresponds to a 99.9% confidence level (or a 0.999 probability) and 3 degrees of freedom. We will look this up in a t-distribution table or use a t-distribution calculator.
Using a t-distribution calculator or table, the t-score corresponding to a 99.9% confidence level (two-tailed) and 3 degrees of freedom is approximately 9.925.
So, the critical value is 9.925, rounded to three decimal places.
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Ling's elementary school principal wants to hire some new teachers. 6 teachers applied for one 1st grade teaching job, and 3 teachers applied for one 2nd grade teaching job. There is also a job opening for a 3rd grade teacher, and 3 teachers applied for the job. How many different ways can Ling's principal hire new teachers?
Answer:
Ling's principal can hire new teachers in 54 different ways.
Step-by-step explanation:
Since Ling's elementary school principal wants to hire some new teachers, and 6 teachers applied for one 1st grade teaching job, and 3 teachers applied for one 2nd grade teaching job, and there is also a job opening for a 3rd grade teacher, and 3 teachers applied for the job, to determine how many different ways can Ling's principal hire new teachers the following calculation has to be done:
6 x 3 x 3 = X
18 x 3 = X
54 = X
Therefore, Ling's principal can hire new teachers in 54 different ways.
Helppp please I'm stuck
Which graph accurately indicates the region, shaded in green, that would determine the solution for the
inequality
|x+7 | -2>0?
Answer:
The region where the inequality is valid is (x>-5) and (x<-9).
The graph is attached.
Step-by-step explanation:
We have a inequality and we have to determine the region in the xy-plane that inequality.
\(|x+7|-2>0\\\\|x+7|-2+2>0+2\\\\|x+7|>2\)
We divide the inequality in two regions:
1) When (x+7)>0, we have:
\(x+7>2\\\\x+7-7>2-7\\\\x>-5\)
2) When (x+7)<0, we have:
\(-(x+7)>2\\\\-x-7+7>2+7\\\\-x>9\\\\(-x)(-1)<9(-1)\\\\x<-9\)
Then, the region where the inequality is valid is (x>-5) and (x<-9).
The graph is attached.
Answer:
B
Step-by-step explanation:
edg 2020
The country of Freedonia has decided to reduce its carbon-dioxide emission by 35\%35%35, percent each year. This year the country emitted 404040 million tons of carbon-dioxide.
The tons of carbon emission for the following year is 26 million tons.
How to calculate the carbon emission?From the information, the country of Freedonia has decided to reduce its carbon-dioxide emission by 35 percent each year and in the year given, the country emitted 40 million tons of carbon-dioxide.
The carbon for the next year will be:
= Total carbon emmision - Reduction in emissions
= 40 million - (35% × 40 million)
= 40 million - 14 million
= 26 million
The complete information is given below.
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Complete question
The country of Freedonia has decided to reduce its carbon-dioxide emission by 35 percent each year. This year the country emitted 40 million tons of carbon-dioxide. What is the carbon emission for the next year.
A square garden has a length of (x+3) ft and a width of (x+2) ft. what is the perimeter and area of the garden?
Answer:
Perimeter:\(4x+10\) feet
Area:\(x^{2}+5x+6\) feet
Step-by-step explanation:
The perimeter is equal to 2*width +2*length. The width is x+2 and the length is x+3, therefore the perimeter is equal to 2x+4+2x+6 which equals 4x+10.
The area is equal to width*length
(x+3)(x+2)=\(x^{2}+2x+3x+6=x^{2}+5x+6\)
The average number of miles (in thousands) that a car's tire will function before needing replacement is 70 and the standard deviation is 12. Suppose that 50 randomly selected tires are tested. Round all answers to 4 decimal places where possible and assume a normal distribution.
a. What is the distribution of X ? X ~ N( , )
b. What is the distribution of ¯ x ? ¯ x ~ N( , )
c. f a randomly selected individual tire is tested, find the probability that the number of miles (in thousands) before it will need replacement is between 72.1 and 73.8.
For the 50 tires tested, find the probability that the average miles (in thousands) before need of replacement is between 72.1 and 73.8.
d. Is the assumption that the distribution is normal necessary? No Yes
Answer:
a) X ~ N(70,12)
b) ¯ x ~ N(70,1.6971)
c) For a single tire, 0.0541 = 5.41% probability that the number of miles (in thousands) before it will need replacement is between 72.1 and 73.8. For the 50 tires tested, 0.0950 = 9.50% probability that the average miles (in thousands) before need of replacement is between 72.1 and 73.8.
d) No
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal probability distribution
When the distribution is normal, we use the z-score formula.
In a set with mean \(\mu\) and standard deviation \(\sigma\), the zscore of a measure X is given by:
\(Z = \frac{X - \mu}{\sigma}\)
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
a. What is the distribution of X ?
Single tire, so normal with mean \(\mu = 70\), standard deviation \(\sigma = 12\)
So X ~ N(70,12).
b. What is the distribution of ¯ x ?
Sample of 50.
By the Cental Limit Theorem, the mean stays the same.
The standard deviation will be \(s = \frac{12}{\sqrt{50}} = 1.6971\)
So
¯ x ~ N(70,1.6971)
c. f a randomly selected individual tire is tested, find the probability that the number of miles (in thousands) before it will need replacement is between 72.1 and 73.8.
This is the pvalue of Z when X = 73.8 subtracted by the pvalue of Z when X = 72.1. So
X = 73.8
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{73.8 - 70}{12}\)
\(Z = 0.32\)
\(Z = 0.32\) has a pvalue of 0.6255
X = 72.1
\(Z = \frac{X - \mu}{\sigma}\)
\(Z = \frac{72.1 - 70}{12}\)
\(Z = 0.18\)
\(Z = 0.18\) has a pvalue of 0.5714
0.6255 - 0.5714 = 0.0541
For a single tire, 0.0541 = 5.41% probability that the number of miles (in thousands) before it will need replacement is between 72.1 and 73.8.
For the 50 tires tested, find the probability that the average miles (in thousands) before need of replacement is between 72.1 and 73.8
50 tires, so by the Central Limit Theorem, we use s in the z-score formula.
X = 73.8
\(Z = \frac{X - \mu}{s}\)
\(Z = \frac{73.8 - 70}{1.6971}\)
\(Z = 2.24\)
\(Z = 2.24\) has a pvalue of 0.9875
X = 72.1
\(Z = \frac{X - \mu}{s}\)
\(Z = \frac{72.1 - 70}{1.6971}\)
\(Z = 1.24\)
\(Z = 1.24\) has a pvalue of 0.8925
0.9875 - 0.8925 = 0.0950
For the 50 tires tested, 0.0950 = 9.50% probability that the average miles (in thousands) before need of replacement is between 72.1 and 73.8.
d. Is the assumption that the distribution is normal necessary?
Sample size of 30 or larger(in this case, 50), so the assumption is not necessary.
the candle was 1 inches long when new.Each half hour 3/4 inch of the candle burned away.After 4 hours,how long was the candle
Hiii this due today can you draw a digram for 5 times 20 please THIS IS DUE TODAY THANK You
Answer:
draw the diagram and multiply 5x20
1. A foot contains 12 inches. 5 inches is what fraction of a foot?
Answer:
5/12
Step-by-step explanation:
a foot =12 inches
fraction of 5 inches=5/12
Angela’s car leaked 6 ounces of oil in 9 days what is the unit rate of the oil leak ??
angelas car leaked=6ounces
angeales car leaked in 9days = 6×9=54
The test scores for a group of students are shown.
60, 69, 79, 80, 86, 86, 86, 89, 90, 100
Calculate the five number summary of the data set? Minimum = First Quartile (Q1) = Median = Third Quartile (Q3) = Maximum = What is the interquartile range (IQR) Which test score is an outlier?
60
69
90
100
Answer:
Minimum=60
First Quartile(Q1)=79
Median=86
Third Quartile (Q3)=89
Interquartile range (IQR)=10
In an orchard 2/5 of the trees are banana trees, 1/4 of the trees are orange trees and the rest are apple trees. If there are 220 trees in all, find the number of each kind
Answer: banana- 88
Orange-55
Apple-143
Step-by-step explanation:
220 divided by 5, times 2,
that’s the banana trees
220 divided by 4, that’s the oranges
Add the answers together
Take the answer away from 220 that’s the apples
number of heads: 0,1,2,3 Frequency: 16,38,34,12 Find the median
Answer:
the median of 0 1 2 3 16 38 34 12 is 9.5
A bag has eight balls labeled A, B C D, E, F. G, and H. One ball will be randomly picked, and its letter will be recorded as the outcome. Give the sample space describing all possible outcomes. Then give all of the outcomes for the event of choosing a letter from A to D. If there is more than one element in the set, separate them with commas. Sample space: l 00 X 5 Event of choosing a letter from 4 to D
The Event of choosing a letter from F to D is
n(A) = 4
What is an Event?A series of possible results from an experiment that have been given a probability is called an event. Separate events in an experiment may not be equally probable, since they may involve vastly dissimilar sets of outcomes, and a single result may be a component of many different events.
Given that a bag contains eight different balls, each of which is labeled from A to H. Given that a ball is selected at random, and the letter it lands on is written down as the result. Given that there is an equal chance of drawing any one of the balls, the sample space for drawing one ball is
Generally, the equation for S is mathematically given as
S = {A,B,C,D,E,F,G,H} and n(S) = 8
Therefore
G = The event of choosing a label from D to F
Where
F= {A,B,C,D}
Sample size
n(A) = 4
In conclusion,
n(A) = 4
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If ✓(x+iy) =a+ib, then find ✓(x-iy) and x^2+y^2.
The values of the complex expressions are ✓(x - iy) = a - ib and x² + y² = (a + ib)²(a - ib)²
Calculating the complex expressionsFrom the question, we have the following parameters that can be used in our computation:
✓(x + iy) = a + ib
Changing the signs, we have
✓(x - iy) = a - ib
Multiply both expressions
This gives
✓(x + iy) * ✓(x - iy) = (a + ib)(a - ib)
Square both sides
So, we have
(x + iy) * (x - iy) = (a + ib)²(a - ib)²
This gives
x² + y² = (a + ib)²(a - ib)²
Hence, the values of ✓(x - iy) is a - ib and x² + y² is (a + ib)²(a - ib)²
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don't let brainly distract you from the fact that lil mosey woke up like the man
Answer:
True i guess
Step-by-step explanation:
The mug is 5/8 full, the mug contains 3/4 of water find the capacity of the mug
The capacity of the mug is 1.2. The capacity of the mug can be found by using the equation C = (3/4) ÷ (5/8).
What is capacity?It is the maximum amount of output that can be produced in a given period of time. Capacity is usually expressed in terms of units per unit of time, such as gallons per minute or passengers per hour.
In this equation, 3/4 represents the amount of water in the mug, and 5/8 represents the amount the mug is full.
Let the capacity of the mug be x.
Given,
Mug is 5/8 full and contains 3/4 of water
So, 5/8 of the mug is filled with water
Therefore,
5/8 of x = 3/4
(5/8 )x = (3/4)
x = (3/4) × (8/5)
x = (24/20)
x = 1.2
Therefore, the capacity of the mug is 1.2.
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GIVE 100 POINTS + BRAINLY
15. The following expression has been simplified as follows:
(12a^-3b^4)^-2
=1/144a^-5b^2
=b^2/144a^5
What did the student do wrong?
a. Why do you think the student made this error?
b. Solve the problem correctly. Make sure to show all work!
Answer:
\(\dfrac{a^6}{144b^8}\)
Step-by-step explanation:
a) They did not use the exponent rule: \((a \cdot b)^n=a^nb^n\) correctly.
They added the exponents rather than multiplied them.
b) Correct solution:
\((12a^{-3}b^4)^{-2}\)
Apply exponent rule: \(a^{-b}=\dfrac{1}{a^b}\)
\(\implies \dfrac{1}{(12a^{-3}b^4)^2}\)
Apply exponent rule: \((a \cdot b)^n=a^nb^n\)
\(\implies \dfrac{1}{12^2a^{(-3\times2)}b^{(4 \times2)}}\)
\(\implies \dfrac{1}{144a^{-6}b^8}\)
Apply exponent rule: \(\dfrac{1}{a^{-b}}=a^b\)
\(\implies \dfrac{a^6}{144b^8}\)
A bike race takes place over a 3 mile course. How many feet is it?
a
15280 ft
b
3000 ft
c
15,840 ft
d
15000 ft
Answer:
A
Step-by-step explanation:
Here is ur answer
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y=mx+b example; y=mx+b calculator; writing linear equations in slope-intercept form answer key; write equation in slope intercept form calculator; standard form equation; slope-intercept form examples; point slope form calculator; how to find the y-intercept
1) The Point-Slope Formula (y – y1) = m(x – x1)
2) The Slope-Intercept Formula y = mx + b
linear equations in slope-intercept :
To determine the equation of a line, you may use two variations of the general form of a line.
These formulas are:
1) The Point-Slope Formula (y – y1) = m(x – x1)
2) The Slope-Intercept Formula y = mx + b
standard form equationThe standard form of a linear equation, also known as the “general form“, is:
ax+by=c
The letters aa, bb, and cc are all coefficients. When using standard form, aa, bb, and cc are all replaced with real numbers. The letter x represents the independent variable and the letter y represents the dependent variable.
A few notes on Standard Form:
The a term must be a positive integera ,b, and cc cannot be decimals or fractionshow to find the y-interceptLet us now determine the y-intercept. Remember, this is where the line crosses the y-axis and where x=0 To do so, we will substitute 0 for x
3y-5x=30
3y-5(0)=30
3y=30
y=10
Therefore, the y-intercept is at 10. This means the point (0,10) is on the graph.
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Heather paid $37.50 for a pizza to be delivered to her house. She had a coupon for 30% off and
there is a tax of 8%. What was the total cost of the pizza to be delivered?
Answer:
The original cost of the pizza before the discount coupon and the tax was $49.28.
Step-by-step explanation:
Given that Heather paid $ 37.50 for a pizza to be delivered to her house, and she had a coupon for 30% off and there is a tax of 8%, to determine what was the total cost of the pizza to be delivered, the following calculation has to be done:
100 - 8 = 92
100 = 37.50
92 = X
92 x 37.50 / 100 = X
34.50 = X
100 - 30 = 70
70 = 34.50
100 = X
100 x 34.50 / 70 = X
49.28 = X
Thus, the original cost of the pizza before the discount coupon and the tax was $ 49.28.
Jenna picked a pumpkin at the pumpkin patch that weighed 8 and 1 half pounds, Her little sister, sandy, picked a pumpkin that weighed one half of that amount, how much did sandys pumpkin weigh
Answer:
4 pounds and 1/4 ounces
Step-by-step explanation:
8 and 1 half pounds = 8.5 Ibs
One half of 8.5 = 8.5/2 = 4. 25 Ibs or 4 & 1/4 or 4Ibs 4 ounces.
Danielle was completing her science project and mixed saline solutions A and B. Brand A was a six gallon 18% saline solution and she ended up with an 18 gallon 8% saline solution mixture. Find the percent of saline solution in brand B.
A. 2.1%
B. 21%
C. 3%
Brand B contains 3% saline solution by volume. Then, C is the right answer.
Percentage of saline solution in brand B, let x be.
We know that the overall volume of saline solution in the combination is 18% of 6 gallons plus x% of (18 - 6) gallons since Danielle blended brands A and B to make a total of 18 gallons of 8% saline solution.
Then the equation is given as,
0.18(6) + 0.01x(18 - 6) = 0.08(18)
Simplifying and solving for x, we get:
1.08 + 0.12x = 1.44
0.12x = 0.36
x = 3
Therefore, the percentage of saline solution in brand B is 3%.
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Work out 30% of $150
Answer:
$\(45\)
Step-by-step explanation:
\(30\)% \(\mathrm{of}\) $\(150\)
\(=\frac{30}{100}\times 150\\\)
\(=\) $\(45\)