101, 100, 99, 33, 25, 2, 1, 0
You put the same numbers by accident
Assume that the salaries of elementary school teachers in the United States are normally distributed with a mean of $37,000 and a standard deviation of $5000. What is the cutoff salary for teachers in the bottom 10%
Answer:
New cut off salary = 30,592
Step-by-step explanation:
Given:
Normal distributed mean = $37,000
Standard deviation = $5000
Cut off salary = 10%
Find:
New cut off salary
Computation:
Z - left tale value of 10% is -1.2816
Corresponding x-value using x = zs + u
New cut off salary = (-1.2816)(5,000) + 37,000
New cut off salary = -6,408 + 37,000
New cut off salary = 30,592
See attachments!
Paolo wrote the following equation for the perimeter of a rectangle.
Which equation is equivalent to the equation Paolo wrote?
Answer:
p = 2 + l w
Step-by-step explanation:
Find the distance between the points given below. Round your answer to the nearest tenth.
A (0,6) and B (-3,-1)
Answer:
7.6
Step-by-step explanation:
We want to find the distance between (0,6) and (-3,-1)
We can find the distance between any two points using the distance formula
Distance between two points =
\( \sqrt{(x2 - x1)^{2} +(y2 - y1) {}^{2} } \)
Where the values of x and y are derived from the the two points. (x1,y1) and (x2,y2)
Here the two points are (0,6) and (-3,-1)
So we have (x1,y1) = (0,6) so x1 = 0 and y1 = 6
And we have (x2,y2) = (-3,1) so x2 = -3 and y2 = -1
Now we plug in the values of x and y into the formula and evaluate to get the distance.
Again recall distance = √(x2-x1)²+(y2-y1)²
==> plug in x2 = -3 , x1 = 0, y2 = -1 and y1 = 6
Distance = √(-3-0)²+(-1-6)
==> evaluate operations inside of parenthesis
Distance = √(-3)²+(-7)²
==> evaluate all exponents
Distance = √9+49
==> and 9 and 49
Distance = √58 = 7.6 (rounded)
4 if the mixing ratio of a sample of air is 2 grams/kilogram, and the temperature of the sample is 25 degrees celsius, yielding a saturation mixing ratio of 20 grams/kilogram, what is the relative humidity of the sample?
Because the temperature is greater, the relative humidity of the atmosphere is higher.
Relative humidity: What is it?Water vapor is also measured by relative humidity (RH), which is stated as a percentage but RELATIVE to the air's temperature. In plenty of other terms, it is a comparison between the quantity of water vapor that is really present in the air and the maximum amount water vapor that is possible for the air at the current temperature.
How can relative humidity be determined from temperature?By deducting the temperature just on wet-bulb thermometer from of the temperature just on dry-bulb thermometers and utilizing a relative humidity chart, one may determine the relative humidity.
To know more about relative humidity visit:
https://brainly.com/question/29654889
#SPJ4
3. it normally takes julius 4 hours to mow the lawn, but because he is in a hurry he asks his son, marcos, to help him. if marcos mows the lawn by himself, it would take him 6 hours. a. marcos thinks it will take them 5 hours to mow the lawn when working together. but his dad said that was not true, and it would take less time. without doing any calculations, who is correct? why?
Julius is correct that it will take less time for them to mow the lawn when working together.
Both Julius and Marcos have different predictions on how long it will take them to mow the lawn when working together. Marcos believes it will take them 5 hours, while Julius thinks it will take less time. Without any calculations, we can determine who is correct based on the concept of work rates.
When working alone, Julius takes 4 hours to mow the lawn. This means his work rate is 1 lawn per 4 hours. Similarly, Marcos takes 6 hours to mow the lawn alone, so his work rate is 1 lawn per 6 hours.
When working together, their work rates are combined. To find the total work rate, we add their individual work rates: 1/4 + 1/6 = 5/12.
This means that together, Julius and Marcos can mow 5/12 of the lawn in one hour. To mow the entire lawn, they need to complete 1 whole unit of work.
Since their combined work rate is 5/12, it will take them less than 5 hours to finish mowing the lawn. Therefore, Julius is correct in saying that it will take them less time than what Marcos predicted.
In conclusion, Julius is correct that it will take less time for them to mow the lawn when working together.
Know more about predictions here,
https://brainly.com/question/11082538
#SPJ11
PLEASE HELP! This problem contains Algebra which I am super bad at!
Answer:
c
Step-by-step explanation:
because the i just worked it out
Let S={(4,1,0);(1,0,−2);(0,1,−5)}. Which of the following is true about S ? S is linearly independent in R^3 S does not spanR^3 The above one The above one S is a subspace of R^3
The first option "S is linearly independent in R³" is true about S.
To determine if the set S={(4,1,0);(1,0,−2);(0,1,−5)} is linearly independent in R³, we need to check if the only solution to the equation a(4,1,0) + b(1,0,−2) + c(0,1,−5) = (0,0,0) is a = b = c = 0.
Assume that there exist scalars a, b, and c, not all equal to zero, such that a(4,1,0) + b(1,0,−2) + c(0,1,−5) = (0,0,0). This leads to the following system of equations:
4a + b = 0
a + c = 0
-2b - 5c = 0
Solving this system of equations, we find that a = b = c = 0. Therefore, the only solution to the equation is the trivial solution.
Hence, the set S is linearly independent in R³ because the vectors in S cannot be linearly combined to form the zero vector unless all the coefficients are zero.
Learn more about linearly independent
brainly.com/question/14351372
#SPJ11
1. a coin is flipped eight times where each flip comes up either heads or tails. how many possible outcomes contain at least 7 heads?
Answer:
4 out of 256
Step-by-step explanation:
trust me. Also I’m trying to level up my Brainly so when someone else answers the question can you try to mark me brainliest.
please help.........
Answer:
-2/3
Step-by-step explanation:
We have two points on the line
(0,4) and (6,0)
We can use the slope formula
m = (y2-y1)/(x2-x1)
= (4-0)/ (0-6)
= 4/-6
-2/3
PLS ANSWEE!
B.
Two angles that share a common vertex and side.
Geometry vocab
Answer:
They are known as "Adjacent Angles"
Step-by-step explanation:
They are two angles that have a common vertex and a common side but do not overlap.
PLS HELP, IM ON A TIMER! Use the distributive property to remove the parentheses. (y + 9) 2
Answer: 2y+18
Step-by-step explanation:
(y+9)2
=2*y + 2*9
=2y + 18
Answer:
2y + 18 is the answer your looking for.
Two complex numbers are given, where m, n, p, and q are real numbers.
m+ni
p+qi
For what relationship among m, n, p, and q, will be the product of these two complex numbers have only an imaginary part?
This is Algebra 2.
Answer choices:
np mq
mp-np=0
mp+nq=-1
Answer:
\(\displaystyle pm - qn = 0\text{ and } pn + qm \neq 0\)
Or:
\(pm = qn \text{ and } pn + qm \neq 0\)
Step-by-step explanation:
We are given two complex numbers:
\(\displaystyle m + ni \text{ and } p + qi\)
Where m, n, p, and q are real numbers.
And we want to determine the relationship among m, n, p, and q such that the product of the two complex numbers will only have an imaginary part.
Find the product:
\(\displaystyle \begin{aligned} (m+ni)(p+qi) &= p(m+ni) + qi(m+ni) \\ &= (pm + pni) + (qmi + qni^2) \\ &= (pm + pni) + (qmi - qn) \\ &= (pm - qn) + i(pn + qm) \end{aligned}\)
Therefore, for the product to have only an imaginary part, the real part must be zero and the imaginary part must not be zero. That is:
\(\displaystyle pm - qn = 0\text{ and } pn + qm \neq 0\)
In conclusion, the relationship between m, n, p, and q is:
\(\displaystyle pm - qn = 0\text{ and } pn + qm \neq 0\)
Or:
\(pm = qn \text{ and } pn + qm \neq 0\)
(Note: I couldn't understand the provided answer choices, but the above answer is indeed correct (and the second equation can be ignored).)
Which expression is equivalent to 24+56
Answer:
24+56 is equivalent to 80.
Jon won 30 marbles playing horseshoes at a game night. Later, he gave 3 to each of his friends. He only has 9 left. How many friends does she have?
Find y round to the nearest tenth
Y is 27.8
Just trust me please :)
Which equation shows the relationship between the volume, (V) of the prism and its height (h)?
Answer:
h = V/lw
Step-by-step explanation:
We know the formula for the volume of a rectangular prism is V = lwh. We need to use this equation and solve for h by dividing lw on both sides.
V = lwh
V/lw = h
Which statement is true?
0
A. 8x and 8y are like terms.
B. 8 and x are like terms.
C. 8x and x are like terms.
O
D. 8x and 8 are like terms
Pinocchio’s nose is 9cm long. If he lies, his nose grows by 6cm. If he tells the truth, it shortens by 2cm. He tells a lie 4 times, and the truth twice. How long is Pinocchio’s nose now?
Answer:
29 cm
Step-by-step explanation:
We Know
Pinocchio’s nose is 9cm long.
His nose grows by 6cm if he lies.
His nose shortens by 2cm if he tells the truth.
He lies 4 times and truth 2 times.
We Take
9 + (6 x 4) - (2 x 2) = 29 cm
So, Pinocchio's nose now is 29 cm.
Answer:
29 cm
Step-by-step explanation:
(6x4) + 9
(6x4) = 24 cm
24 + 9 = 33 cm
(2x2) - 33
(2x2) = 4 cm
4 - 33 = 29 cm
I hope this helps!
if we compute a 95onfidence interval 12.65 ≤ μ ≤ 25.65 , then we can conclude that.
Based on the computed 95% confidence interval, we can conclude that we are 95% confident that the true population mean falls within the range of 12.65 to 25.65.
A confidence interval is a range of values that provides an estimate of the true population parameter. In this case, we are interested in estimating the population mean (μ). The 95% confidence interval, as mentioned, is given as 12.65 ≤ μ ≤ 25.65.
Interpreting this confidence interval, we can say that if we were to repeat the sampling process many times and construct 95% confidence intervals from each sample, approximately 95% of those intervals would contain the true population mean.
The confidence level chosen, 95%, represents the probability that the interval captures the true population mean. It is a measure of the confidence or certainty we have in the estimation. However, it does not guarantee that a specific interval from a particular sample contains the true population mean.
Therefore, based on the computed 95% confidence interval, we can conclude that we are 95% confident that the true population mean falls within the range of 12.65 to 25.65.
Learn more about confidence interval here:
https://brainly.com/question/13067956
#SPJ11
Tamika records the outside temperature at 6:00 a.M. The temperature increases by 2ºF every hour for the next 6 hours. If the temperature continues to increase at the same rate, what will the temperature be at 2:00 p.M.?
The temperature at 2 PM will be x +16°F
What is temperature?Temperature is a phrase used to describe the degree of heat or cold on any scale, including Fahrenheit and Celsius. A thermometer is used to determine temperature. It is calibrated using different temperature scales that historically defined themselves using different reference points and thermometric substances.
The most popular scales are the Celsius scale, also known as "centigrade," with the unit °C, the Fahrenheit scale, with the unit °F, and the Kelvin scale, with the unit K. The latter is primarily used for scientific research and is the primary temperature scale specified by the International System of Units (SI).
Let temperature at 6 AM be x°F
Time difference between 2 PM and 6 AM:
Δt = 14 -6
= 8 hour
increase in temperature after every 1 hour = 2°F
increase in temperature in 8 hour will be:
ΔT = 2 * Δt = 2*8 = 16°F
Temperature at 2 PM will be = x + ΔT
= x +16°F
To know more about temperature please visit:
https://brainly.com/question/15267055
#SPJ12
Use implicit differentiation to find the slope of the tangent line at the given point:
Answer:
\(\displaystyle \frac{dy}{dx}\Big|_{(1, 1)}=0\)
Step-by-step explanation:
We are given the equation:
\((x^2+y^2)^2=4x^2y\)
And we want to find the slope of the tangent line at the point (1,1).
Recall that the slope of the tangent line to a point of a function is given by the function's derivative.
Thus, find the derivative of the equation. Take the derivative of both sides with respect to x:
\(\displaystyle \frac{d}{dx}\left[(x^2+y^2)^2\right]=\frac{d}{dx}\left[4x^2y\right]\)
Let's do each side individually.
Left:
We can use the chain rule:
\((u(v(x))'=u'(v(x))\cdot v'(x)\)
Let v(x) be x² + y² and u(x) is x². Thus, u'(x) is 2x. Therefore:
\(\displaystyle \frac{d}{dx}\left[(x^2+y^2)^2\right]=2\left(x^2+y^2\right)\left(\frac{d}{dx}\left[x^2+y^2\right]\right)\)
Differentiate:
\(\displaystyle \frac{d}{dx}[(x^2+y^2)^2]=2(x^2+y^2)\left(2x+2y\frac{dy}{dx}\right)\)
Factor. Therefore, our left side is:
\(\displaystyle 4(x^2+y^2)\left(x+y\frac{dy}{dx}\right)\)
Right:
We have:
\(\displaystyle \frac{d}{dx}\left[4x^2y\right]\)
We can move the constant multiple outside:
\(\displaystyle =4\frac{d}{dx}\left[x^2y\right]\)
We will use the Product Rule:
\(\displaystyle =4\left(\frac{d}{dx}\left[x^2\right]y+x^2\frac{d}{dx}\left[y\right]\right)\)
Differentiate:
\(\displaystyle =4\left(2xy+x^2\frac{dy}{dx}\right)\)
Therefore, our entire equation is:
\(\displaystyle 4(x^2+y^2)\left(x+y\frac{dy}{dx}\right)=4\left(2xy+x^2\frac{dy}{dx}\right)\)
To find the derivative at (1,1), substitute and evaluate dy/dx when x = 1 and y = 1. Hence:
\(\displaystyle 4((1)^2+(1)^2)\left((1)+(1)\frac{dy}{dx}\right)=4\left(2(1)(1)+(1)^2\frac{dy}{dx}\right)\)
Evaluate:
\(\displaystyle 4((1)+(1))\left(1+\frac{dy}{dx}\right)=4\left(2+\frac{dy}{dx}\right)\)
Further simplify:
\(\displaystyle 8\left(1+\frac{dy}{dx}\right)=8+4\frac{dy}{dx}\)
Distribute:
\(\displaystyle 8+8\frac{dy}{dx}=8+4\frac{dy}{dx}\)
Solve for dy/dx:
\(\displaystyle 4\frac{dy}{dx}=0\Rightarrow \frac{dy}{dx}=0\)
Therefore, the slope of the tangent line at the point (1, 1) is 0.
Three students attempt to define what a line segment is.
Answer:
the line segment is a part of an infinite line.
Answer:
Ebuka is correct. Ivy is thinking about a line, not a line segment. And ethan is the one saying that a line segment is about more than a length.
Your grandmother is worried about the heat during the family reunion picnic yesterday between 10 am and noon the temperature rose 6 degrees then between noon and 3pm it rose 4 degrees what was the average rate of increase in temperature between 10am and 3pm
Answer:
Average rate of temperature increase is 2 degrees per hour
Step-by-step explanation:
Here, we want to calculate the average rate of increase in temperature
From what we have above, we can calculate this by dividing the total temperature rise by the number of hours
The total temperature rise is 6 + 4 = 10 degrees
This means that the temperature rose by 10 degrees between 10 am and 3 pm
The number of hours between 10 am and 3 pm is 5 hours
So the average rate of temperature increase is 10 degrees/ 5 hours = 2 degree per hour
A package of 5 pairs of insulated socks costs $26.45. What is the unit price of the pairs of socks?
Answer:
$5.29 per pair of socks
Step-by-step explanation:
26.45/5=5.29
Total Males 27,437,246 Total Females 27,231,086 Females aged 15-44 years 12,913,036 Total deaths 334,603 Maternal deaths 1,489 Deaths under 1 year 54.613 Deaths under 28 days 22. 343 Deaths due to Tuberculosis 31,650 Total live births 1.437.154 Tuberculosis cases 153,406
What is the Crude Birth Rate? 23.45/1000 36.78/1000 26.29/1000 38.00/1000
The Crude Birth Rate is estimated to be approximately 26.29/1000.
The Crude Birth Rate is calculated by dividing the total number of live births by the total population, and then multiplying by 1,000.
In this case, the total number of live births is given as 1,437,154. To calculate the Crude Birth Rate, we divide 1,437,154 by the total population, which is the sum of the total number of males and females, resulting in 27,437,246 + 27,231,086 = 54,668,332.
Multiplying this ratio by 1,000 gives us the Crude Birth Rate per 1,000 population.
So, the Crude Birth Rate can be calculated as:
(1,437,154 / 54,668,332) * 1,000 ≈ 26.29/1000
Therefore, the Crude Birth Rate is approximately 26.29 births per 1,000 population.
In summary, based on the given information, the Crude Birth Rate is estimated to be approximately 26.29/1000.
This rate represents the number of live births per 1,000 individuals in the population.
Learn more about population here:
https://brainly.com/question/28830856
#SPJ11
PLEASE SOMEONE HELP ME WITH THIS PLEASE
sketch the solution set to the system of the inequalities shown below.
y < 6
y ≥ x - 6
is the point (10, 5) a solution to the system? justify
PLEASE SOMEONE ANSWER IMAGE INCLUDED
I attached a picture showing a graph of y<6 and y>=x-6. As you can see, the point (10,5) is in y<6 and y>=x-6.
You can also tell this because y<6 highlights everything with the y value of less than 6. 5 is less than 6, so instantly you can realize that (10,5) is a solution to the system.
The manager of a store buys weather radios in lots of 48. Suppose that, on the average, 4 out of each group of 48 are defective. The manager randomly selects 4 radios out of the group to test. (Round your answers to 4 decimal places.) (a) What is the probability that he will find 2 defective radios? (b) What is the probability that he will find no defective radios?
(a) The probability that two radios are being defective= 0.035
(b) The probability that all radios are not defective = (11/12)^4
Probability:
Possibility is referred to as probability. This branch of mathematics deals with the occurrence of a random event. The value's range is 0 to 1. Probability has been applied into mathematics to predict the likelihood of different events. Probability generally refers to the degree to which something is likely to occur. This fundamental theory of probability, which also applies to the probability distribution, can help you comprehend the possible outcomes for a random experiment. Gonna determine how likely something is to occur, use probability. Many things are hard to predict with 100% certainty. We can only anticipate the possibility of an event occurring using it, or how likely it is.
To learn more about probability visit: https://brainly.com/question/11234923
#SPJ4
2. Erin earns $29.00 for 4 hours of babysitting. How much would she make babysitting for 10
hours?
Answer:
$72.5
Step-by-step explanation:
4 hours of babysitting = $29.00
Therefore $29.00 divided by 4 is 1 Hour of babysitting which is $7.25
To find 10 hours we multiply $7.25 by 10 = $72.5
So Erin would make $72.5 babysitting for 10 Hours.
state whether -4^{2} and (-4)^{-2} represent the same quantity. Explain.
Answer:
No
Step-by-step explanation:
-4^2 is -4 * 4 = -16
(-4)^2 = (-4) * (-4) = 16
Which statement best describes the purpose of the clerk's interaction with Louisa in scene 2?
Responses
The interaction alerts Louisa that Niles' niece will be joining their meeting.
The interaction alerts Louisa that Niles' niece will be joining their meeting.
The interaction gives Louisa confidence to challenge Niles' opinion of her book.
The interaction gives Louisa confidence to challenge Niles' opinion of her book.
The interaction prepares Louisa for the disappointment that Niles will likely not publish her book.
The interaction prepares Louisa for the disappointment that Niles will likely not publish her book.
The interaction helps Louisa understand that she may need to change some of the language in her book.
The statement "The interaction prepares Louisa for the disappointment that Niles will likely not publish her book" best describes the purpose of the clerk's interaction with Louisa in scene 2.
What is the novel "Pride and Prejudice" about?With elegance and wit characteristic of author Jane Austen's writing style, "Pride and Prejudice" transports readers into England's early 19th century society where main character Elizabeth Bennet endeavors to find love within societal conventions that demand she secure a marriage partner.
Similarly positioned is her friend Louisa who pursues potential suitors while also seeking publication for her own written works. However, when seeking aid from a publishing house, Louisa encounters an unencouraging clerk who highlights the challenges of publication within the industry.
Learn more about Pride and Prejudice here https://brainly.com/question/30928818
#SPJ1