Can someone help me? I figured out part B however, I am struggling with part A and I would be so happy if any of you helped me. Thank you for your help.
Note: you may need to delete the comma
============================================================
Explanation:
The info "5 months" is never used to compute the mean. We could easily replace it with "6 months" or "7 months" or any stretch of time, and still get the same answer. So we'll ignore this value.
What we'll do is add up the 21 items given to us, and then divide by 21.
Because there are so many values, and it's easy to get lost, I'm going to add up across the rows
Row One: 256,229+253,657+218,747+246,163+235,626+288,694 = 1,499,116 Row Two: 316,265+196,721+319,620+285,077+215,152+253,291 = 1,586,126 Row Three: 315,011+199,901+265,443+291,806+303,556+215,359 = 159,1076 Row Four: 258,554+293,658+289,935 = 842,147Those subtotals then add up to this
1,499,116+1,586,126+1,591,076+842,147 = 5,518,465
This is the same as adding up all 21 values.
Finally, we divide that sum over 21 as there are 21 values in this list
(5,518,465)/21 = 262,784.047619048
That value then rounds up to 262,785
If your teacher just wanted things to the nearest whole number (without rounding up), then the answer would be 262,784
Side note: using a spreadsheet program would probably be the most efficient/fastest method for this type of problem.
Pls help I need this answer now As part of a class project, a university student surveyed the students in the cafeteria lunch line to look for a relationship between eye color and hair color among students. The table below contains the results of the survey.
Rounding the answer to two decimal places, the relative frequency of students with red hair among the sample population of students with gray eyes is approximately 0.63. Option D
To find the relative frequency of students with red hair among the sample population of students with gray eyes, we need to divide the number of students with gray eyes and red hair by the total number of students with gray eyes.
From the given table, we can see that there are 22 students with gray eyes and red hair.
The total number of students with gray eyes is the marginal total for gray eyes, which is 35.
To find the relative frequency, we divide the number of students with gray eyes and red hair by the total number of students with gray eyes:
Relative frequency = Number of students with gray eyes and red hair / Total number of students with gray eyes
Relative frequency = 22 / 35
Simplifying the fraction, we have:
Relative frequency = 0.6286
Rounding the answer to two decimal places, the relative frequency of students with red hair among the sample population of students with gray eyes is approximately 0.63.
Therefore, the correct answer is option OD) 0.63.
For more such questions on relative frequency visit:
https://brainly.com/question/3857836
#SPJ8
Solve for r 1+3r>10 please I need this solved aspap
The solution to the inequality 1 + 3r > 10 is r > 3.
This means that any value of r greater than 3 will satisfy the inequality.
To solve the inequality 1 + 3r > 10, we need to isolate the variable r on one side of the inequality sign.
Let's begin by subtracting 1 from both sides of the inequality:
1 + 3r - 1 > 10 - 1
This simplifies to:
3r > 9
Next, we can divide both sides of the inequality by 3 to solve for r:
(3r)/3 > 9/3
This simplifies to:
r > 3
For similar question on inequality.
https://brainly.com/question/30604125
#SPJ8
1) sin 102
in standard position
Answer:
What are you asking? Whats the problem?
Answer:
sin 102 cant be put into standard position its already in standard position if you want to covert to rectangular it would be sin (102).
Step-by-step explanation:
given the first term and the term-to-term rule, write down the first six terms of each sequence.
b) first term: 2 term-to-term rule add 9
Step-by-step explanation:
a1 = 2
a2 = a1 + 9 = 2 + 9 = 11
a3 = a2 + 9 = 20
a4 = a3 + 9 = 29
a5 = a4 + 9 = 38
a6 = a5 + 9 = 47
Please answer this, thank you so much
Answer:
second one
Step-by-step explanation:
Notice that there's a y intercept of 2 and an x intercept of -4
This means that the line has a positive slope of 1/2, which leaves us with
y<(1/2)x+2
Simplify the expression StartFraction a b Superscript 3 Baseline over a Superscript 4 Baseline b EndFraction plus left-parenthesis c Superscript 2 Baseline right-parenthesis Superscript 3 Baseline
The simplification of the expression ab³/a⁴b + (c²)³ is determined as b²/a³ + c⁶.
What is the simplification of the expression?The given expression is simplified as follows;
The given expression is written as;
ab³/a⁴b + (c²)³
To simplify the expression given above, we will divide the fraction with the common factor as follows;
From the numerator; ab³, we will factor out "ab"
From denominator; a⁴b, we will factor out "ab"
The resulting expression becomes;
ab³/a⁴b + (c²)³
= b²/a³ + c⁶
Note: for the power of c, we simplify by multiplying 2 and 3 = 6
Thus, the simplification of the expression ab³/a⁴b + (c²)³ is determined as b²/a³ + c⁶.
Learn more about simplification here: https://brainly.com/question/28008382
#SPJ1
Solving exponential functions
Answer:
Option B
an increasing exponential graph
A certain antihistamine is often prescribed for allergies. A typical dose for a 100-pound person is 22 mg every six hours. Complete parts (a) and (b) below. a. Following this dosage, how many 12.3 mg chewable tablets would be taken in a week? b. This antihistamine also comes in a liquid form with a concentration of 12.3 mg/ 6mL. Following the prescribed dosage, how much liquid antihistamine should a 100-pound person take in a week?
On solving the provided question, we can say that equation is 532/13.5 = 39.4 doses
What is equation?A mathematical equation is a formula that joins two statements and uses the equal symbol (=) to indicate equality. A mathematical statement that establishes the equality of two mathematical expressions is known as an equation in algebra. For instance, in the equation 3x + 5 = 14, the equal sign places the variables 3x + 5 and 14 apart. The relationship between the two sentences on either side of a letter is described by a mathematical formula. Often, there is only one variable, which also serves as the symbol. for instance, 2x – 4 = 2.
equation is
week * 7( days/week) * 24(hours/day) * 19/6(MILIGRAMS/HOURS)
532 milligrams for a week
532/13.5 = 39.4 doses
To know more about equation visit:
brainly.com/question/649785
#SPJ1
For a computer company, the cost to produce one PC is $1410 plus a one-time cost of $125,000 for research and development. The revenue from selling one PC is $1984. How many PCs must they sell to make a profit?
I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER
it'll be (2,3)
hope it helps...!!!
which expression represnts the product of 2xy and 3xy+5y-xy^2
Answer:
You distribute the 2xy and get
2xy(3xy + 5y - xy^2) = 6(x^2)(y^2) + 10xy^2 - 2(x^2)(y^3)
Which of the following is the correct factored form of the given equation?
4x 2 - 11x + 6 = 0
(2x + 3)(2x + 2) = 0
(2x - 3)(2x - 2) = 0
(4x - 3)(x - 2) = 0
Answer:
(4x - 3)(x-2) = 0
Step-by-step explanation:
4x² - 11x + 6 = 0
To factorize this equation,
-11
4x6
These numbers are the key to the solution:
find two numbers whose sum is -11 and the product is + 24 (4 x 6)
So, the numbers are -3 and -8
4x² - 8x - 3x + 6 = 0
4x(x -2) - 3(x - 2) = 0
(4x - 3)(x-2) = 0
Answer:
(4x - 3)(x - 2) = 0
That's your answer!!
A sociologist sat married couples down in her office and asked some survey questions for her statistical study on marriage. The first married couple was Bonnie and Clyde. Bonnie sat down next to her husband while the sociologist sat across the table from them both. The sociologist asked each the question, if you could return to the past, would you marry your spouse all over again?" This was continued for several other married couples. This is not a good way to conduct this survey and most likely will not give representative results of all married couples. Why not?
Answer:
Step-by-step explanation:
I am married. I can tell you, I'd never give any answer but yes, no matter how I felt about her at the time.
Why hurt her feelings?Why lock her answer in? As soon as she hears my answer, she knows what her answer needs to be. Or she's pressured into giving that answerBecause the answer is so likely to be the same way, how would this question pick up on the couples that despise each other?whats equivalent to 5(3x+4-x)
Answer:
10x+20
Step-by-step explanation:
Using the distributive property, you can write
15x+20-5x
Then it simplifies to 10x+20.
Please consider a brainliest!
PLZ HeLP
Find the volume of this triangular prism.
Be sure to include the correct unit in your answer.
hight 5m
base 5m
other base 9m
Please answer fast!
Ted practices two types of swimming styles for a total of 50 minutes every day. He practices the breaststroke for 20 minutes longer than he practices the butterfly stroke.
Write a pair of linear equations to show the relationship between the number of minutes Ted practices the butterfly stroke every day (x) and the number of minutes he practices the breaststroke every day (y). (5 points)
Answer:
x = 15 & y = 35
Step-by-step explanation:
\(y = x + 20\)
\(x + y = 50 \\ x + (x + 20) = 50 \\ 2x + 20 = 50 \\ 2x = 50 - 20 \\ 2x = 30 \\ x = \frac{30}{2} = 15\)
\(y = x + 20 = (15) + 20 = 35\)
t = p + 50
The variable p represents the number phone calls she routes, and the variable t represents
the number of minutes she is on the phone. In all, how many phone calls does Shivani have
to route to spend a total of 93 minutes on the phone?
Two pounds of grapes cost $6. What is the price of 1 pound of grapes?
Answer:
$3
Step-by-step explanation:
You divide 6 by 2
Find the value of x
Answer:
x = 20
Step-by-step explanation:
We know that the vertically opposite angles are equal.
Accordingly,
41 = 2x + 1
Subtract 1 from both sides.
41 - 1 = 2x
40 = 2x
Divide both sides by 2.
x = 20
Given m∠ABC=37°m∠ABC=37°and m∠CBD=165°m∠CBD=165°. According to the Angle Addition Postulate, what is the measure of ∠ABD∠ABD, that contains −−→BCBC→?
According to the Angle Addition Postulate, the measure of m∠ABD = 202°.
What is an angle addition postulate?According to the Angle Addition Postulate, an angle's measure is equal to the sum of the measures of any two adjacent angles. The Angle Addition Postulate can be used to determine the measurement of a missing angle or to determine the angle produced by two or more other angles.
Given:
The angle measures:
m∠ABC=37°,
and m∠CBD= 165°.
So, according to the angle addition postulate;
m∠ABD = m∠ABC + m∠CBD
Substituting the values,
m∠ABD = 37° + 165°
m∠ABD = 202°
Therefore, the angle measure of m∠ABD = 202°.
To learn more about the angle addition postulate;
https://brainly.com/question/14957499
#SPJ1
suppose 2n c 1 numbers are selected from f1; 2; 3; : : : ; 4ng. using the pigeonhole principle, show that there must be two selected numbers whose difference is 2. clearly indicate what are the pigeons, holes, and rules for assigning a pigeon to a hole.
Yes, there must be two selected numbers whose difference is 2. Any assignment of n+1 pigeons to n holes. Then there exists at least one hole with at least 2 pigeons in it.
The Pigeon-Hole Principle :A general rule, called the pigeon -hole principle, is that if there are more pigeons than holes, there should be at least one hole with at least two pigeons. If we put n + 1 objects into n boxes, we can say that at least one box contains 2 or more objects. Example: If there are Kn+ 1 (where k is a positive integer) pigeons distributed in n holes, then the holes contain at least k + 1 pigeons. Consider 2n pair of pigeon holes (1,3), (2,4), (5,7),(6,8), .. ..,(4n-3,4n-1),(4n-2,4n). The 2 numbers in each pair have the difference 2.
If we choose 2n+1 numbers(pigeons), then they cannot all belong to different pairs.
Thus by pigeon hole principle, there must be two selected numbers whose difference is 2.
To learn more about Pigeonhole principle, refer:
https://brainly.com/question/13982786
#SPJ4
find the exact value of n in 9⅓ ×27^n = 27⅘ and express it in fraction . Its urgent
Answer:
n = 26/45
Step-by-step explanation:
If the 9⅓ and 27⅘ are supposed to be \(9^{1/3}\) and \(27^{4/5}\), then
\(9^{1/3}\) × \(27^{n}\) = \(27^{4/5}\)
=> \((3^{2})^{1/3}\) × \((3^3)^{n}\) = \((3^3)^{4/5}\)
=> \(3^{2/3}\) × \(3^{3n}\) = \(3^{12/5}\)
=> \(3^{3n+\frac{2}{3}}\) = \(3^{12/5}\)
=> 3n+2/3 = 12/5
=> 45n + 10 = 36
=> 45n = 26
=> n = 26/45
Consider the function f(x)=x² + 7x. Form an expression for f(a). f(a)=
The value of the expression f(a) is f(a) = a^2 + 7a, based on the given function f(x) = x^2 + 7x and the value x = a
How to form the expression for f(a)?The given parameters in the question are:
f(x) = x^2 + 7x and
x = a as in f(a)
This means that the equation of the function f(x) is given as:
f(x) = x^2 + 7x
To calculate the value of the function f(a), we simply substitute a for x in the equation of the function f(x) = x^2 + 7x.
This means that we set x to a in the equation of the function f(x) = x^2 + 7x.
So, we have;
f(a) = a^2 + 7a
The above equation cannot be further simplified or expanded
So, we conclude that
Based on the given function f(x) = x^2 + 7x and the value x = a, the value of the expression f(a) is f(a) = a^2 + 7a
Read more about functions at:
https://brainly.com/question/15602982
#SPJ1
Is 123895 rational or irrational?
It's rational! <3
Have a nice day/night!!
Which of the following is used to identify outliers in a set of data?
O 1.5(QR)
O 1.5(range)
O 2(mean)
O2(median)
if EM=11, AM=16, and CF=27, what are the lengths of the following sides?
Answer:
18
Step-by-step explanation:
The required measure of the following sides is given as EB = 33 and AD = 24.
What is the triangle?The triangle is a geometric shape that includes 3 sides and the sum of the interior angle should not greater than 180°.
Here,
In Triangle ABD, BE, AD and CF are te medians of the triangle,
Since the intersection points of the median is called centroid, wile centroid bisect the median in the ration of 2: 1.,
So,
FM = 1/3 CF and CM = 2/3CF
FM = 1/3 (27) and CM = 2/3 (27)
FM = 9 and CM = 18
Similarly, measure of each median and its division can be determined.
EB = 33, EM = 11 and GM = 22
AM = 16, AD = 24 and DM = 8
Thus, the required measure of the following sides is given as EB = 33 and AD = 24.
Learn more about triangles here:
https://brainly.com/question/2773823
#SPJ2
Find the following F distribution values from the F distribution table. (Round your answers to two decimal places.)
(a) F0.05 with degrees of freedom 6 and 15
(b) F0.025 with degrees of freedom 30 and 25
(c) F0.01 with degrees of freedom 8 and 12
(d) F0.10 with degrees of freedom 10 and 20
To find the F0.10 with degrees of freedom 10 and 20, first you need to locate the row with 10 degrees of freedom, then you need to find the column with 20 degrees of freedom. The intersection of these two values is 1.86.
(a) 2.45
(b) 2.75
(c) 2.82
(d) 1.86
(a) To find the F0.05 with degrees of freedom 6 and 15, first you need to locate the row with 6 degrees of freedom, then you need to find the column with 15 degrees of freedom. The intersection of these two values is 2.45.
(b) To find the F0.025 with degrees of freedom 30 and 25, first you need to locate the row with 30 degrees of freedom, then you need to find the column with 25 degrees of freedom. The intersection of these two values is 2.75.
(c) To find the F0.01 with degrees of freedom 8 and 12, first you need to locate the row with 8 degrees of freedom, then you need to find the column with 12 degrees of freedom. The intersection of these two values is 2.82.
(d) To find the F0.10 with degrees of freedom 10 and 20, first you need to locate the row with 10 degrees of freedom, then you need to find the column with 20 degrees of freedom. The intersection of these two values is 1.86.
Learn more about column here
https://brainly.com/question/14234936
#SPJ4
x + 121 = 4x - 20 what is x
Answer:
x = 47
Step-by-step explanation:
x + 121 = 4x - 20
-3x + 121 = - 20
-3x = -141
x = 47
So, the answer is x = 47
Determine the domain of which the following function is increasing
Answer:
domain : - ∞ < x < 1
Step-by-step explanation:
the function is increasing on the upward part of the curve. that is
from negative infinity to the vertex at (1, 3 )
domain : - ∞ < x < 1