Answer: -1/2
Step-by-step explanation:
The length of a rectangle is 7 inches more than twice the width. The
perimeter is 68 inches. Find the length and the width.
Equation?
Answer:
Length: 25
Width: 9
Step-by-step explanation:
HELP PLZ WHATS THE SURFACE AREA
Answer:
285 square units
Step-by-step explanation:
A=π⅓(6V)⅔
Here Volume is 144π
So,
A= π⅓ (6(144π))⅔
=π⅓ (6(452.4)⅔
=π⅓ (2714.4)⅔
=π⅓ (194.5)
=(3.14)⅓ (194.6)
=(1.46) (194.6)
=284.9
=285
Hi plz help, if you can ill mark you 5 starz! :)
Answer:
The first one is 5.075
The second one is 3.15
The third one is 5.875
The fourth one is 7.55
If this helped, I would appreciate it if you marked me brainliest! (°◡°♡).:｡
Answer:
2.03 x 2.5 = 5.075
1.4 x 2.25 = 3.15
2.35 x 2.5 = 5.875
3.02 x 2.5 = 7.55
According to the U.S. Department of Agriculture, the average American consumed 54.3 pounds (ap- proximately seven gallons) of salad and cooking oils in 2008 (www.ers.usda.gov/data/foodconsumption). Suppose that the current distribution of salad and cooking oil consumption is approximately normally distributed with a mean of 54.3 pounds and a standard deviation of 14.5 pounds.
1. What percentage of Americans' annual salad and cooking oil consumption is less than 10 pounds?
2. What percentage of Americans' annual salad and cooking oil consumption is between 35 and 60?
3. What percentage of Americans' annual salad and cooking oil consumption is more than 95 pounds?
Answer:
a) 0.11%
b) 55.99%
c) 0.25%
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 54.3 pounds and a standard deviation of 14.5 pounds.
This means that [tex]\mu = 54.3, \sigma = 14.5[/tex]
1. What percentage of Americans' annual salad and cooking oil consumption is less than 10 pounds?
The proportion is the pvalue of Z when X = 10. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{10 - 54.3}{14.5}[/tex]
[tex]Z = -3.06[/tex]
[tex]Z = -3.06[/tex] has a pvalue of 0.0011
0.0011*100% = 0.11%.
2. What percentage of Americans' annual salad and cooking oil consumption is between 35 and 60?
The proportion is the value of Z when X = 60 subtracted by the pvalue of Z when X = 35.
X = 60
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{60 - 54.3}{14.5}[/tex]
[tex]Z = 0.39[/tex]
[tex]Z = 0.39[/tex] has a pvalue of 0.6517
X = 35
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{35 - 54.3}{14.5}[/tex]
[tex]Z = -1.33[/tex]
[tex]Z = -1.33[/tex] has a pvalue of 0.0918
0.6517 - 0.0918 = 0.5599
0.5599*100% = 55.99%
3. What percentage of Americans' annual salad and cooking oil consumption is more than 95 pounds?
The proportion is 1 subtracted by the pvalue of Z when X = 95.
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{95 - 54.3}{14.5}[/tex]
[tex]Z = 2.81[/tex]
[tex]Z = 2.81[/tex] has a pvalue of 0.9975
1 - 0.9975 = 0.0025
0.0025*100% = 0.25%
(1.) 0.11% of Americans annual salad and cooking oil consumption is less than 10 pounds.
(2) 55.99% of Americans annual salad and cooking oil consumption is between 35 and 60.
(3).0.25% Americans annual salad and cooking oil consumption is more than 95 pounds.
Given, the average american consumed 54.3 pounds of salad and cooking oils in 2008.
the mean of salad and cooking oil consumption is approximately 54.3 pounds and a standard deviation of 14.5 pounds.
The formula for calculating a z-score is,
[tex]z = \dfrac{(X-\mu)}{\sigma}[/tex]
where [tex]X[/tex] is the raw score, μ is the population mean, and σ is the population standard deviation.
The value of the z-score tells you how many standard deviations you are away from the mean. If a z-score is equal to 0, it is on the mean. A positive z-score indicates the raw score is higher than the mean average.
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.
1. percentage of Americans annual salad and cooking oil consumption is less than 10 pounds.
Here X=10
[tex]z=\dfrac{10-54.3}{14.5}[/tex]
[tex]z=-3.06[/tex]
Since [tex]z=-3.06[/tex] has a p value of 0.0011,so
[tex]0.0011\times100\%=0.11\%[/tex]
2.percentage of Americans' annual salad and cooking oil consumption is between 35 and 60.
the proportion is the value of Z when X = 60 subtracted by the p value of Z when X = 35.
At X=60,
[tex]z=\dfrac{60-54.3}{14.5}[/tex]
[tex]z=0.39[/tex]
0.39 has a p value of 0.6517.
At X=60,
[tex]z=\dfrac{35-54.3}{14.5} \\[/tex]
[tex]z=-1.33[/tex]
-1.33 has a p value of 0.0918.
Now,[tex]0.6517 - 0.0918 = 0.5599[/tex]
[tex]0.5599\times100\% = 55.99\%[/tex]
3. percentage of Americans' annual salad and cooking oil consumption is more than 95 pounds.
Here, The proportion is 1 subtracted by the p value of Z when X = 95.
[tex]z=\dfrac{95-54.3}{14.5}[/tex]
[tex]z=2.81[/tex]
[tex]z=2.81[/tex] has a p value of 0.9975.
So, [tex]1 - 0.9975 = 0.0025[/tex].
Now, [tex]0.0025\times100\% = 0.25\%[/tex].
Hence the correct percentage is 0.11%,55.99% and 0.25% respectively.
For more details follow the link:
https://brainly.com/question/6096474
The temperature in Mrs. Cagle's room was -14°F yesterday, but it rose 8°F today. What is the
new temperature today?
A professor wants to determine the best way to present an important topic to his class. He has the following three choices: he can lecture, he can lecture plus assign supplementary reading, or he can show a film and assign supplementary reading. He decides to do an experiment to evaluate the three options. He solicits 15 volunteers from his class and randomly assigns 5 students to each of the three conditions. The students were subsequently tested on the material. The following scores (percentage correct on the test) were obtained:
LECTURE Lecture + Reading Film + Reading
92 86 81
86 93 80
87 97 72
76 81 82
80 94 83
Answer:
lecture plus assign supplementary reading
Step-by-step explanation:
So I think how you do it is to find the mean of each. The middle one has the highest mean. Also, it has 3 As and 2 Bs, the first one only has one A and the last one does not have an A.
Which term describes sq
Answer:
angle bisector
Step-by-step explanation:
In the picture shown in the question, the line segment SQ would be considered the angle bisector. This is because it is dividing the interior angles' opposite side into two line segments. Hence the line segments PQ and QR. The angle bisector divides the opposite side into line segments that are proportional to the other two sides of the triangle which in this case can be seen by the top left indication in the picture stating that PQ and QR are the same.
Can you find the number of triangles in this given figure.
Answer:
19
Step-by-step explanation:
Answer:
61
reason: I just counted
i NEED HELP PLEASE HELP ME
9514 1404 393
Answer:
see attached
Step-by-step explanation:
The vertex is the extreme point of the curve. It lies on the vertical line that is the axis of symmetry.
The x-intercepts are where the graph crosses the x-axis. (They are symmetrically located about the axis of symmetry.)
The y-intercept is where the graph crosses the y-axis.
**PLEASE HELP!!*
James threw a ball from the roof of a building. The ball fell 3 feet in the first second, 9 feet in the next second, and 27 feet in the third second. which expression represents the distance the ball fell at the nth second?
a. 3^n
b. 3n
c. n^3
d. 6n-3
Answer:
n 3 is the correct answer okay
What is an example of a compound event??
Answer: Flipping a coin, or drawing a card suit (spades, hearts, clubs, or diamonds), either of those works.
Step-by-step explanation: A compound event is the combination of two or more simple events (with two or more outcomes). The probability of drawing a heart, replacing the card, then drawing a spade. In a compound event, the numerator ("number of times it can occur") will be greater than 1.
solve for x
x plus 15 = 60
Answer:
x = 45Step-by-step explanation:
x + 15 = 60
=> x = 60 - 15
=> x = 45 (Ans)
Answer:
45
Step-by-step explanation:
x + 15 = 60
-15. -15
___. ____
x. = 45
Find m angle 1.
A 100
B 25
C 80
D 105
Answer:
C. 80
Step-by-step explanation:
m angle 1 = ½×(105+55)= ½× 160= 80°
I dentify the appropriate mixed number for the picture shown
Answer:
2 1/2
A.
Count the complete =2
The incomplete, a quarter + a quarter = half
What is the median (middle number) in the data set? 48, 52, 57, 61, 64, 72, 76, 77, 81, 85, 88
Step-by-step explanation:
48, 52, 57, 61, 64, 72, 76, 77, 81, 85, 88
the middle number is 72
been working on this for too long. thank u :)
Answer:
Im not a 100% sure but my best guess would be the 3rd equation:
f(x) = (x - 1) (x + 3)
Please let me know if I was wrong, but i hope this helped you!
what is the range of the data set?
Answer:
The answer is C, 18 hours.
what is equivelent to 13/13
Answer:
1
Step-by-step explanation:
Answer:
1/1
2/2
3/3
4/4
5/5
Step-by-step explanation:
11 ft
15 ft
13 ft what is the volumn
Answer:
2145 ft^3
Step-by-step explanation:
How is absolute value used to determine MAD
Answer:
To find the mean absolute deviation of the data, start by finding the mean of the data set. Find the sum of the data values, and divide the sum by the number of data values. Find the absolute value of the difference between each data value and the mean: |data value – mean.
Step-by-step explanation:
I really need help with this probability question and it would mean a lot if someone could help me! :)
Crystal has $9 to spend on lunch and an afternoon snack. If lunch costs three times as
much as the snack, which inequality best represents the situation if s represents the
money that can be spend on a snack?
A. 3s + s less than or equal to 9
B. 3s greater than or equal to 9
C.3s + s greater than or equal to 9
D.s less than or equal to
Answer:
The answer is C as money needed to spend on lunch is 3times on snacks so if we let money on snacks as s then lunch will be 3s.
Step-by-step explanation:
And the total money he has is $9 so
3s+s = 9
The inequality will be 3s + s greater than or equal to 9. The correct option is C.
What is inequality?The relation between two expressions that are not equal, employing a sign such as ≠ ‘not equal to, > ‘greater than, or < ‘less than.
It is given that Crystal has $9 to spend on lunch and an afternoon snack. If lunch costs three times as much as the snack.
The answer is C as the money needed to spend on lunch is 3 times on snacks if we let money on snacks as s then lunch will be 3s. And the total money he has is $9.
3s+s = 9
Therefore, the inequality will be 3s + s greater than or equal to 9. The correct option is C.
To know more about inequality follow
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Find the volume of the sphere.
r= 4 cm
Formulas for Spheres
S.A. = 4tr2
V = fnr V = [?] cm3
Round to the nearest tenth.
Enter
Answer:
268.2 cm³
Step-by-step explanation:
Volume of sphere= 4/3 π r³
→ [tex]4/3*22/7*4*4*4[/tex]
→ [tex]256*22/21[/tex]
→ [tex]5632/21=[/tex]
→ [tex]268.19 cm^3[/tex]
→ [tex]268.2 cm^3[/tex]
[tex]------------[/tex]
hope it helps...
have a great day!!
Answer:
268.2 cm³ is your answer
Which graph best represents a quadratic function that has only one zero?
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
What is the answer for the equation: -4.2a = 8.4
Answer:
the answer is in the photo
Step-by-step explanation:
I hoped I helped:)
Please answer 23 and 24 for me pls pls pls
Andy wants to find the distance across a river. In order to find the distance CD, Andy stands at point D , directly across from point C , and walks 200 feet to the left, placing a marker at a point E. Andy continues walking another 300 feet to point A , and then follows the path to the left, walking until the markers at points E and C line up. Andy marks this location B and measures AB. What is CD
Answer:
98
Step-by-step explanation:
200/300 x 147= 98
Determine the volume of the toilet paper roll excluding the empty middle
Answer:
150.72
Step-by-step explanation:
3² × 3.14 × 6 - 1² × 3.14 × 6 = (3² - 1²) × 3.14 × 6 = 150.72
Hello help me out thank you !
Answer:
1130.4
Step-by-step explanation:
The volume of a cylinder is πr^2h, where r is the radius and h is the height.
We are given the height, 10m.
The diameter is 2m more than the height, so 2+10=12m.
The radius is half the diameter, so 12m/2=6m.
Use r=6 and h=10 in the formula to get the volume
π6^2*10≈1130.4
A distribution center makes deliveries to food stores on a weekly basis. On the average, 50 stores are served daily. A typical store places an order for 10,000 lb of various products. 4 store orders can be placed on a delivery truck. Trucks are loaded in 5 hours. The distribution center operates an 8 hour shift. How many truck doors are needed?
Answer:
3 doors needed
Step-by-step explanation:
The computation of the no of trucks doors that are needed is shown below:
= serve daily ÷ no of store orders ÷ no of store orders
= 50 ÷ 4 ÷ 4
= 3 doors needed
First we divided the serve daily from the no of store orders and then the value that comes so it would be divided by no of store orders again so that the no of truck doors could come