Answers
Answer:
b = 24
Step-by-step explanation:
[tex]10^{2} +b^{2} =26^{2} \\100+b^{2}=676\\b^{2}=576\\\sqrt{b^2} =\sqrt{576} \\b= 24[/tex]
Related Questions
Shoppers at a mall have a mean weight of 70 kg 70kg70, start text, k, g, end text with a standard deviation of 10 kg 10kg10, start text, k, g, end text. An elevator at the mall holds a maximum of 6 66 people, and safety engineers are curious about the average weight of shoppers on a full elevator. Suppose that we take random samples of 6 66 shoppers and calculate the mean weight x ˉ x ˉ x, with, \bar, on top of the shoppers in each sample.
Answers
Answer:
The answer is below
Step-by-step explanation:
Shoppers at a mall have a mean weight of 70 kg with a standard deviation of 10 kg. An elevator at the mall holds a maximum of 6 people, and safety engineers are curious about the average weight of shoppers on a full elevator. Suppose that we take random samples of 6 shoppers and calculate the mean weight x ˉ on top of the shoppers in each sample.
Solution:
Let variable x represent the weight of a shopper at the mall.
Assuming this variable has a normal distribution with mean μ= 70kg and standard deviation σ = 10kg.
There are random samples of 6 shoppers. That is sample size (n) = 6
The mean of the sample (μₓ) is the same as the mean of the population (μ), hence:
μₓ = μ = 70 kg
The standard deviation of the sample (σₓ) is equal to the standard deviation of the population (σ) divided by the square root of the sample size (n).. Hence:
σₓ = σ / √n = 10 / √6 = 4.08 kg
Answer:
Mean: 70
Standard Deviation: 4.1
Step-by-step explanation:
Khan Academy Answer
Erin is making shirts for her upcoming family reunion. At the reunion she is selling each shirt for $18. If it cost her $30 to purchase the unfinished shirts, how much profit does she make if she only sells 25 shirts at the reunion?
Answers
Answer:
She is making 0 dollars profit
shes loosing money
Step-by-step explanation:
Answer:
yesyesyesyesyezyesysssss
(3ax + 4a) - (9x + 15a)
Answers
Answer:
3ax-11a-9x
Step-by-step explanation:
How many different arrangements are there of the 3 letters chosen from the word combination
Answers
Answer:
bnnnm
bStep-by-step explanation:
what is the area of this quadrilateral
A.80 square feet
B.30 square feet
C.50 square feet
D.130 square feet
Answers
What fraction of the shape is shaded? plssss help
Answers
Answer:
2/6
Step-by-step explanation:
Answer:
1 1/2 of the shape is shaded
Step-by-step explanation:
Hope this helps!
I don’t know how to do this....Help me please!!
Answers
I can't figure this out
Answers
9514 1404 393
Answer:
∠H = 50°∠A = 80°∠W = 130°Step-by-step explanation:
It is helpful to remember that opposite angles of an inscribed quadrilateral are supplementary. This lets you find the value of m.
∠A +∠K = 180°
8m° +10m° = 180°
18m = 180
m = 180/18 = 10
Using this value we can find ...
∠H = 5m° = 5·10° = 50°
∠A = 8m° = 8·10° = 80°
∠W = 180° -∠H = 180° -50° = 130°
A line passes through the point (-8, 3) and has a slope of 5/4. Write an equation in point-slope form for this line.
Answers
A piece of rural land sold ten years ago for 40000. The price for the same land this year is $800 more per acre, and it sold for 60000. What is the size of the piece of land in acres?
Answers
Answer: 25
Step-by-step explanation:
From the question, we are informed that the piece of rural land sold ten years ago for 40000 and that the price for the same land this year is $800 more per acre, and it sold for 60000.
The size of the piece of land in acres will then be:
40000 + 800x = 60000
800x = 60000 - 40000
800x = 20000
x = 20000/800
x = 25
The land is 25 acres
Answer: 25
Step-by-step explanation:
40000 + 800x = 60000800x = 60000 - 40000800x = 20000x = 20000/800x = 25
hey can anyone help me?
Answers
Certain games are creative you can learn how to work with a team and accept failure.
step by step explanation:
.
What is the approximate Probability of drawing a Black OR Face Card from a standard deck of shuffled cards?
Answers
Answer:
0.73
Step-by-step explanation:
Number of cards in a standard deck = 52
Number of black cards = 26
Number of face cards = 12
Probability of drawing either a black or face card
Probability = required outcome / Total possible outcomes
P(drawing a black card or face card) = (number of black cards / total card) + (number of face cards / total cards)
= 26/52 + 12 /52
= 0.5 + 0.2307692
= 0.73
I will mark Brainliest!!! Hurry
Answers
Answer:
Yes
Step-by-step explanation:
Congruent means equal in size and they both are 84 cm therefore they are congruent
A system of two equal equations is shown below
3x + y = 8
4x - 2y = 3
What is the solution of the system?
Answers
Answer:
x=1.9
y=2.3
Step-by-step explanation:
I hope this helped.
Find the curcumince of the circle. use 3.14 or 22/7.
Answers
Answer:
the circumference of this circle is approximately 25.12 cm with π as 3.14.
Step-by-step explanation:
circumference of a circle is technically a perimeter of a circle.
we find the circumference of a circle by using the following formula :
c = 2πr or c = πd
r represents the radius d represents the diameter
since 4 yds here is a radius, we use the left formula i placed above. then, we substitute the numbers in. pi represents 3.14 as said in your question. even if you use 22/7, you will still get around the same result.
c = 2πr
c = 2(3.14)4
c = 6.28(4)
c = 25.12 yds
therefore, the circumference of this circle is approximately 25.12 yds.
PLEASE HELP ME!!! Which of the following rational functions is graphed below?
Answers
Answer:
A
Step-by-step explanation:
I need help please help
Answers
Use the data to select the correct line plot. Then answer the question.
Answers
Answer:
B
Step-by-step explanation:
What is the slope and y-intercept of the graph?
slope: 1/2
A
y-intercept: 4
slope: -2
B
y-intercept:-4
slope: -1/2
y-intercept: 4
slope: 2
D
y-intercept:4
Answers
Answer:
A
Step-by-step explanation:
The vertices of triangle JKL are J(–2, 3), K(1, 6), and L(3, –2). Which type of triangle best describes triangle JKL
A. right scalene
B. non-right scalene
C. right isosceles
D. non-right isosceles
Answers
Answer:
Scalene triangle or right scalene triangle is correct
Step-by-step explanation:
Which equation can be used to solve for x in the following diagram?
(10x + 10)
110°
Choose 1 answer:
(10x + 10)
= 110
(10x + 10) = 90
(10x + 10) - 110 = 90
(10x + 10) + 110 = 180
Answers
Answer:
the answers (10x+10)=110
Step-by-step explanation:
What is the unit rate
Answers
Answer:
1 problem every 5 minutes
Step-by-step explanation:
the way you write the unit type depends on which values are on which axis.
I divided 15 by 3 and got 5
and when dividing the time by problems solved you always get 5 for the values in the table
hope this helps chu <3
What is the formula used to find the area of this
shape? *This symbol: / means divided by
A= b xh/2
A= I xw
A=s2
A= (b1 +b2)h/ 2
Answers
Answer:
A = (b1 + b2)h/2
Step-by-step explanation:
The shape given is a trapezoid having two parallel sides which can be labelled b1 and b2 respectively. The distance between the two parallel sides is the height of the trapezoid, which is labelled h.
Area of a trapezoid is given as:
A = (b1 + b2)h/2
wrote a simplified expression for the perimeter of the triangle
pls help i’ll give brainialist
Answers
Answer:
here, you are simply asked to find perimeter
so add all sides to find it. soln is below
a+5+2a-1+3a-7 = 6a-3= 3(2a-1) ans
How to solve this maths problem?
Pls help
Answers
Answer:
Step-by-step explanation:
(a) The length and breadth of the playground as measured by the surveyor are 20 m and 13 m respectively to nearest metre.
Since the actual length is x m and breadth is y m, then;
i. x ≥ 20 m or x ≤ 20 m
ii. y ≥ 13 m or y ≤ 13 m
(b) perimeter of the playground = 2 (length + breadth)
= 2 ( 20 + 13)
= 2 x 33
= 66 m
The range of values of the perimeter = 65.4 m < perimeter < 66.5 m
ii. area of the playground = length x breadth
= 20 x 13
= 260 [tex]m^{2}[/tex]
The range of values of the area = 259.4 [tex]m^{2}[/tex] < Area < 260.5 [tex]m^{2}[/tex]
Where is the midpoint of AB if A(6, 4) and B(5,-2)?
A) (11,2)
B (11,6)
C) (5.5,3)
D (5.5,1)
Answers
Answer:
Step-by-step explanation:
The midpoint is just the average coordinates of the endpoints.
mp=((x1+x2)/2, (y1+y2)/2), we have points (6,4) and (5,-2)
mp=((6+5)/2, (4-2)/2)
mp=(5.5, 1)
So D is the answer.
i need sum one smart
if i did 54 push ups in 1 minute what would be the independent variable and the dependent variable
Answers
Answer:
Independent - Minutes
Dependent - Push up #
Step-by-step explanation:
The minutes do not depend on anything so they would be independent. The push ups depend on how many minutes there are so it is dependent.
Hope this helps :)
Help me pls would be appreciated
Answers
Answer:
Sphere volume is this formula
V=(4/3)πr^3
plug in 21 for r in this formula
If you are meant to round pi to 3.14 the answer is = 38722.72
If you are not meant to round pi to 3.14 the answer is = 38792.39
1. Leslie visits a local department store in order to purchase summer clothes. The
price of the dress is $40. The dress is marked up 25%. What is the selling price of
the dress?
Answers
Answer:
$50
Step-by-step explanation:
Given data
We are given that the price is $40
the markup percent is 25%
Hence the price will be
40+25% of 40
=40+ 25/100*40
=40+ 0.25*40
=40+10
=$50
Therefore, the price of the dress is $50
What is the volume of a pyramid with a base area of 102 square units and a height of 13 units? 1) 442 units 2) 663 units 3) 1326 units 4) 3978 units.
Answers
Answer:
3
Step-by-step explanation:
HOPE THIS HELPS SORRY FOR CAPS