Answer:
Mean = 328.15
Step-by-step explanation:
Given that,
The sum of fx = 30,847
The sum of f = 94
We need to find the mean of the group. We know that,
[tex]\text{Mean}=\dfrac{\Sigma fx}{\Sigma f}[/tex]
Put all the values,
[tex]\text{Mean}=\dfrac{30847}{94}\\\\=328.15[/tex]
So, the mean of the group is equal to 328.15.
Solve for x 11^x/11^3=11^2 PPEASE I HAVE AN F
Find the volume of the rectangular pyramid below.
Answer:
315 yd cubed
Step-by-step explanation:
To find the volume of the pyramid, we first need to consult the equation below. Thebase is for the rectangular portion, then after multiplied by the height it is divided by 3 to get the pyramid.
[tex]\frac{1}{3} (B * H )[/tex]
To get the base, we multiply the length by the width.
21 * 9 = 189
189 * 5 = 945
945 divided by 3 = 315
Answer:
Let's find the base area:
21 x 9 = 189
Now let's multiply the base area by the height:
189 x 5 = 945
Now let's divide by 3( x 1/3 ):
945 divided by 3(x 1/3) = 315 yd^3 is your answer
Step-by-step explanation:
Formula area of a rectangular Pyramid(just like any other pyramid):
BH x 1/3
To find base we multiply length by width just using the basic formula of finding area of a rectangle.
Then we multiply our base area by our height.
One we've done that we now divide by 3(multiplying by 1/3)
Help please. Forthefunction f(x)=x(x+3)(x−1)
Answer:
x-intercepts= (-3,0) , (1,0) and y-intercepts= (0,-3)
For the graph part it would be graphed and shaped like a U.
Step-by-step explanation:
Hope this helps :)
Evaluate the following expression.
2^0
Answer:
1
Step-by-step explanation:
2^0
Any number raised to the zero power is 1
Help please . Help . Thank you
Answer:
Total weight = 111.6 lbs
Step-by-step explanation:
Given the following data;
Length = 1 feet
Width = 9.5 feet
Height = 13.5 feet
Mass of contents = 0.87 pounds per cubic foot
To find the weight of the contents in the container;
First of all, we would determine the volume of the rectangular prism;
Volume = length * width * height
Volume = 1 * 9.5 * 13.5
Volume = 128.25 cubic feet
Next, we find the overall weight;
Total weight = volume * mass of contents
Total weight = 128.25 * 0.87
Total weight = 111.6 lbs
Check all of the correct names for the object pictured below.
Answer:
VU,UV, and probably VU just pick 3 answers cause there is 6 questions in all but i hope these answers help u have a nice day too.
Step-by-step explanation:
The lines shown below are parallel. If the green line has a slope of -3/7, what is
the slope of the red line?
A. -3/7
B. 7/3
C. -7/3
D. 3/7
। Find the H.C. F. of :
x2+ 2xy+y and 3ax+3ay
Answer:
Factorizing 4x2 - 9y2, we get
(2x)2 - (3y)2, by using the identities of a2 - b2.
= (2x + 3y) (2x - 3y)
Step-by-step explanation:
f(x) = 3x + 4 is y =
Which sequences are geometric?
Check all that apply.
Answer:
3, 12, 48, 192, ...
3, 15, 75, 375, ...
2, 10, 50, 250, ...
After a nice dinner, Benji decides to leave a 20% tip. The total bill comes to $24.25. About how much should he leave for the tip?
Answer:
it will be 4.85 dollars he left
The manager of a new supermarket wished to estimate the likely expenditure of his customers. A sample of till slips from a similar supermarket describing the weekly amount spent by 500 randomly selected customers was collected and analysed. This expenditure was found to be approximately normally distributed with a mean of $50 and a standard deviation of $15.
Find the probability that any shopper selected at random spends more than $80 per week?
Find the percentage of shoppers who are expected to spend between $30 and 80 per week?
Answer:
0.0228 = 2.28% probability that any shopper selected at random spends more than $80 per week.
88.54% of shoppers are expected to spend between $30 and 80 per week.
Step-by-step explanation:
Normal Probability Distribution
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
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 p-value, we get the probability that the value of the measure is greater than X.
Normally distributed with a mean of $50 and a standard deviation of $15.
This means that [tex]\mu = 50, \sigma = 15[/tex]
Find the probability that any shopper selected at random spends more than $80 per week?
This is 1 subtracted by the p-value of Z when X = 80. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{80 - 50}{15}[/tex]
[tex]Z = 2[/tex]
[tex]Z = 2[/tex] has a p-value of 0.9772
1 - 0.9772 = 0.0228
0.0228 = 2.28% probability that any shopper selected at random spends more than $80 per week.
Find the percentage of shoppers who are expected to spend between $30 and 80 per week?
The proportion is the p-value of Z when X = 80 subtracted by the p-value of Z when X = 30.
X = 80
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{80 - 50}{15}[/tex]
[tex]Z = 2[/tex]
[tex]Z = 2[/tex] has a p-value of 0.9772
X = 30
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{30 - 50}{15}[/tex]
[tex]Z = -1.33[/tex]
[tex]Z = -1.33[/tex] has a p-value of 0.0918
0.9772 - 0.0918 = 0.8854
0.8854*100% = 88.54%
88.54% of shoppers are expected to spend between $30 and 80 per week.
Hopefully the photo posted...
The teacher of a statistics class records the heights (in inches) of his students and draws a box-and-whisker plot to look over the data collected. This box-and-whisker plot shows theresult. (a) What is the median height? (b) What is the range of heights?
Answer:
a) Median Height = 66 inches
b) Range of Heights = 18 inches
Step-by-step explanation:
a) The median in a box-and-whisker plot is the second quartile, located between the first and third quartiles indicated by the dashed line. Therefore, the median height is 66 inches.
b) The range in a box-and-whisker plot uses the same process of finding the range of a set of data. You find the difference between the maximum and the minimum values of the data. Therefore, the range of heights is 77 - 59 = 18 inches.
Solve for x in the diagram below
Answer:
26.67
Step-by-step explanation:
If you deposit $2,000 into an account that pays 2% annual interest compounded monthly, how much money will be in the account in 5 years?
9514 1404 393
Answer:
$2,210.16
Step-by-step explanation:
The applicable formula for the account balance is ...
A = P(1 +r/n)^(nt)
where principal P is invested at annual rate r compounded n times per year for t years. Here, we have P=2000, r=0.02, n=12, t=5. The balance is ...
A = $2000(1 +0.02/12)^(12·5) = $2210.16
__
Numerous calculators, apps, web sites, and spreadsheets can figure this for you.
Alexander is building a rectangular pen in his backyard for his dog. The pen will have a length of 13 feet and a width of 2x feet.
4x+26
Step-by-step explanation:
to buy fencing, you need to find the perimeter of the pen. The perimeter is found by adding all sides together.
So, 13+13+2x+2x=4x+26
Write the equation of the line that passes through the points (1, -7) and (-6, -9).
Put your answer in fully reduced point-slope form, unless it is a vertical or horizontal
line.?
Answer:
y = 2/7 x - 51/7
Step-by-step explanation:
Equation of the line
(y-y1)/(y2-y1) = (x-x1)/(x2-x1)
(y-(-7)/(-9-(-7) = (x-1)/(-6-1)
(y+7)/-2 = (x-1)/-7
(-y-7)/2 = (-x+1)/7
-y-7 = -2/7 x + 2/7
-y = -2/7x +2/7 + 7
y = 2/7 x - 2/7 - 7
y = 2/7 x + (-2-49)/7
y = 2/7 x - 51/7
MT is a diameter of OE. Calculate the measure of ZMEA.
A. 24°
B. 48°
C. 84°
D. 132
NEED THE ANSWER ASAP please
Answer:
C. 84°
Step-by-step explanation:
< AET = 2×48 = 96° , => < MEA = 180-96
= 84°
YMC
15
A А
14
B
9
12
11
X
4 5 6
2 3
3
5
The image of AABC is AA'B'C. What transformations would result in this image?
Triangle ABC is reflected over the y-axis then rotated 90 degrees around the origin
Triangle ABC is translated T: (x,y) -> (X - 6,y), then rotated 90 degrees around the
origin
Triangle ABC is rotated 90 degrees around the origin, then T: (x,y) -> (x,y - 6)
Triangle ABC is rotated 90 degrees around the origin, then is reflected over the line y =
1
lo
Answer:
1.2.3.4.5.6.7.8.9.0.2.3.4.5.6.7.8.9.0
Step-by-step explanation:
What is the missing side length?
Solve the equation. Check your Solution.
-3 1/3 ÷ -1/2
Answer:
1.6 or 1.67
Step-by-step explanation:
Pls help me I need the answer ASAP no rocky. What is the median of the data set
Answer:
go back in the lesson and relearn this is 6th grade work
HELP PLSSSS I will GIve BRainlyest
Answer:
The independent is the weight of all the people already on the elevator and the dependent variable is the weight of the elevator after you get on.
Answer:
First fill in the blank answer - Dependent. Second fill in the blank - Indepenent
Step-by-step explanation:
So there are two different variables you need to know here:
The indenpenent variable - It is a variable that affects the dependent variable, however it can be changed in a experiment of project by the person.
The dependent variable - It is the variable that is affected by the independent variable, and varies throughout the expeirment.
In this case, the total weight after you get on depends on how heavy everyone else is before you get in the elevator.
This makes sense, because p cannot be changed, but with the addition of 132, effects the outcome, t.
So this means that the total wieght is the dependent variable.
The independent variable, on the other hand, changes to coutcome of how heavy to elevator is.
So this means the weight of the people in the elevator is the independent variable.
Hope this helps!
This makes no sense, I don’t understand
Answer:
the range where we see the function is between x=0 and x=7
its B
A is impossible btw, no number is smaller or equal to 0 AND bigger or equal to 7
please brainliest
4 = -8Z - 7 + 8z
Giving the brainliest to whoever gets the right answer.
Answer:
No Solution
Step-by-step explanation:
if one side is 4, another side -8z and +8z cancels, left -7
4 ≠ -7
Answer:
statement is false
Step-by-step explanation:
See image below:)
5. Sara thinks the following expressions are equivalent:
2x + 3 = x/2 + 3/4
Is she right? If so, prove that these two expressions are equivalent. If not, what error(s) did she make?
[tex]\sf\purple{No, \:Sara\: is \:wrong.}[/tex]
[tex]2x + 3≠ \frac{x}{2} + \frac{3}{4} [/tex]
[tex]\sf\red{Here's\:why:}[/tex]
[tex]L. H. S. = 2x + 3[/tex]
[tex]R. H. S = \frac{x}{2} + \frac{3}{4} \\ = \frac{x \times 2}{2 \times 2} + \frac{ 3}{4} \\ = \frac{2x + 3}{4} [/tex]
Clearly,
[tex]2x + 3≠ \frac{2x + 3}{4} \\✒ \: L.H.S.\:≠\:R. H. S. [/tex]
[tex]\boxed{Therefore,\:the\:two\:expressions \:are\:not\:equivalent.}[/tex]
To make them equivalent, Sara can simply divide L. H. S. by 4.
By doing so, she'll have
[tex] \frac{2x + 3}{4} = \frac{2x + 3}{4} \\ ๛L.H.S.=R. H. S[/tex]
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]
HELP PLEASE!! Picture below with options!
if sofia has 40,000 dresses and she needs to put them in 1,000 boxes equally, how many dresses will fit in each box
Answer:
40 dresses will fit in each box
Step-by-step explanation:
40,000 ÷ 1,000 = 40
Hope this helps
Answer: 40 dresses will fit in each box.
[tex]\color{yellow}{}[/tex][tex]\color{yellow}{}[/tex][tex]\color{yellow}{}[/tex][tex]\color{yellow}{}[/tex]
135 pencils were to be packed into boxes. Each box could take 12 pencils. find the number of boxes fully packed
Answer:
11 boxes are packed fully
Solve: 5x - 7x + 6 = -2(x - 3). A) 0 B) 3 4 Eliminate C) 2 D) infinitely many solutions....
Answer: The answer is A
Result
0
=
0
0=0
The input is an identity: it is true for all values
Step-by-step explanation:
Answer:
D) Infinitely many solutions
Step-by-step explanation:
5x - 7x + 6 = -2(x - 3)
Distribute -2 on the right side of the equation:
5x - 7x + 6 = -2(x) + (- 2)(-3)
5x- 7x + 6 = -2x + 6
Combine like terms:
5x- 7x + 6 = -2x + 6
-2x + 6 = -2x + 6
-2x + 6 - 6 = -2x + 6 -6
-2x = -2x
-2x + 2x = -2x + 2x
0 = 0
This solution indicates that there are infinitely many solutions or all real numbers.
