Answer:
A. $0.89
Step-by-step explanation:
To find the constant of proportionality, find the cost of one pound of potatoes
3.56/4
= 0.89
So, the constant of proportionality is $0.89
The correct answer is A. $0.89
The exact value of 25 3/2
Answer:
the exact value is 26.5.
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What’s the answer please helpppppppp
Answer:
take a clearer
Step-by-step explanation:
wusususud
The Environmental Protection Agency (EPA) publishes fuel economy values that are known to be good estimates of the fuel economy a typical driver will achieve under average driving conditions. One of the fuel economy values the EPA publishes is a combined estimate, which represents a combination of city driving (55%) and highway driving (45%). A large car rental company has 16 Ford Explorers in their fleet. They collected fuel economy data from these cars and calculated the sample mean to be 23.29 mpg and sample standard deviation as 0.78 mpg.
Required:
The car rental company is willing to assume that the conditions are met for constructing a confidence interval. Use the collected data to construct a 90% confidence interval for the mean combined fuel economy for Ford Explorers.
Answer:
The 90% confidence interval for the mean combined fuel economy for Ford Explorers is between 22.95 and 23.63 mpg.
Step-by-step explanation:
We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.
The first step to solve this problem is finding how many degrees of freedom, we have. This is the sample size subtracted by 1. So
df = 16 - 1 = 15
90% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 15 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.9}{2} = 0.95[/tex]. So we have T = 1.7531
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 1.7531\frac{0.78}{\sqrt{16}} = 0.34[/tex]
In which s is the standard deviation of the sample and n is the size of the sample.
The lower end of the interval is the sample mean subtracted by M. So it is 23.29 - 0.34 = 22.95 mpg
The upper end of the interval is the sample mean added to M. So it is 23.29 + 0.34 = 23.63 mpg
The 90% confidence interval for the mean combined fuel economy for Ford Explorers is between 22.95 and 23.63 mpg.
Cumulative frequency table is given below. Which type of cumulative frequency is given. Try to build the frequencies of respective class intervals.
Runs 0−10,10−20,20−30, 30−40, 40−50
No of cricketers 3, 8, 19, 25, 30
Step-by-step explanation:
run No of cricket more cumulative less cumulative
0-10 3 3 85
10-20 8 11 82
20-30 19 30 74
30-40 25 55 55
40-50 30 85 30
What is x (to the nearest millimeter)
Please help, i would appreciate it. This is one of my last question.
The histogram shows the number of minutes that users waited to register for classes on a university's online system. Suppose 5
more users call and each waits exactly 45 minutes. Which color bar(s) will be affected by the new data?
Answer:
C. Yellow only
Step-by-step explanation:
I mean, its 45 minutes, and only the yellow bar includes 45.
ABC is a right triangle
Answer:
thats cool, how you doing ABC
Step-by-step explanation:
Answer:
what?
Step-by-step explanation:
WILL GIVE BRAINLIEST ONLY IF IT IS RIGHT! Isabella grows several varieties of pepper plants. The following dot plots show the numbers of peppers, rounded to the nearest 5, per plant for different varieties. Each dot represents a different plant.
Order the varieties from least to greatest typical number of peppers per plant.
Put the graph with the least typical value on top.
Answer: Banana has the lowest value, and habanero has the greatest value
Step-by-step explanation:
there. :)
after i put the answer first but its fine it is JUST a app
:|
Please help, brainliest for correct answer
Answer:
V = 706.5 in³
Step-by-step explanation:
V = πr²h = 3.14(5²)9 = 706.5 in³
Find the two numbers . State the smallest number?
Answer:
7
Step-by-step explanation:
x+y=30
x-y=16
2x=14
therefore x=7 and y=23.
the smallest number is 7.
btw jungwoo = best boy
Step-by-step explanation:
Let x be the smallest number
According to the question,
(Let the two numbers be x and y)
x+y=30
= x=30-y
Now,
y-x=16
= y=16+30-y
= 2y=46
= y =23
Also,
x=30-23
= 7
The value of the smallest number is 7
The other number is 23
Leo deposited $3,316.25 in an account that earned 2.5% interest compounded weekly for 13 years. After 13 years, how much had Leo earned in interest?
Express your answer rounded correctly to the nearest cent. Do not include units on your answer.
please help
Answer:
interest=P(1+r/100)^n-P
interest=3316.25(1+2.5/5200)^676-3316.25
=1273.18 (nearest cent)
Jacob opened a money-market account. In the first month, he made an initial deposit of $500, and
he plans to contribute an additional $75 every month. The account does not pay any interest.
After how many months will he have a total of $1,475?
Answer:
after 13 months
Step-by-step explanation:
........ur welcome..........
1475-500=975
975÷75=13
so 13 months
The number of items sold over a four-month period are: month 1 2 3 4 sales 5100 5500 5400 5600 Calculate the forecasts for the 4th and 5th months using 3-month weighted moving average method with weights of 0.6 for the most recent month and 0.3 for the next to the most recent month. Further, suppose that the exponential smoothing constant α=0.5. Then calculate the forecasts for 3rd, 4th and 5th months, using exponential smoothing method. Under the 3-month weighted moving average method, what is the forecast for the fourth month?
Answer:
By using 3-month weighted moving average method -
Forecasts for the 4th month = 5400
Forecasts for the 5th month = 5530
By using Exponential smoothing method -
Forecasts for 3rd month = 5300
Forecast for 4th month = 5350
Forecast for 5th month = 5475
Step-by-step explanation:
To find - Calculate the forecasts for the 4th and 5th months using 3-month weighted moving average method.
Calculate the forecasts for 3rd, 4th and 5th months, using exponential smoothing method.
Proof -
Given that,
month 1 2 3 4
sales 5100 5500 5400 5600
F(4) = 0.6 A(3) + 0.3 A(2) + 0.1 A(1)
= 0.6 [ 5400] + 0.3 [ 5500] + 0.1 [ 5100]
= 3240 + 1650 + 510
= 5400
⇒forecasts for the 4th month = 5400
Now,
F(5) = 0.6 A(4) + 0.3 A(3) + 0.1 A(2)
= 0.6 [ 5600] + 0.3 [ 5400] + 0.1 [ 5500]
= 3360 + 1620 + 550
= 5530
⇒forecasts for the 5th month = 5530
Now,
Given that, the exponential smoothing constant α=0.5
Month Sales Forecast
1 5100 5100
2 5500 5100 + 0.5(5100 - 5100) = 5100
3 5400 5100 + 0.5(5500 - 5100) = 5300
4 5600 5300 + 0.5(5400 - 5300) = 5350
5 5350 + 0.5(5600 - 5350) = 5475
∴ we get
By using Exponential smoothing method -
Forecasts for 3rd month = 5300
Forecast for 4th month = 5350
Forecast for 5th month = 5475
m
N. M
(8x+17)
(12x-39)
Answer:
96x^2 - 108 - 663
Step-by-step explanation:
(8x + 17)(12x - 39)
96x^2 - 312x + 204x -663
96x^2 - 108 - 663
Ardit left a 18% tip on a $60 restaurant bill. How much money did he leave for the tip?
Answer:
$10.80
Step-by-step explanation:
$60.00 x 0.18 = $10.80
x/-7 +14 >/ 16
show your work
include a number line
9514 1404 393
Answer:
x ≤ -14
Step-by-step explanation:
We assume you want to solve ...
x/(-7) +14 ≥ 16
Subtract 14, then multiply by -7.
x/(-7) ≥ 2 . . . . subtract 14
x ≤ -14 . . . . . . multiplying by a negative number reverses the inequality
The solution is shown on the number line below.
19-3/4n in standard form
Answer:
So, if you need to convert the fraction into a decimal, 3/4=0.75. So, I think it's 19-0.75 I'm not sure if I'm correct.
Step-by-step explanation:
question is in picture :) also pls explain (if u can)
The m’s would all be the same number.Another way of adding the same number to each other would be to multiply that number by the number of times you want to add it to each other.
With m + m + m you are adding it 3 times.
So instead multiply m by 3:
The answer is 3m
Answer:
Solution :-In the Question the concept used is the algebra
We know that
[tex] \sf \: x \times x = {x}^{2} [/tex]
and
[tex] \sf \: x + x = 2x[/tex]
Similarly
[tex] \sf \: m + m + m = 3m[/tex]
The method is also known as property of addition in algebra
The number a is 4/5 of the number b what part of number a is number b
Answer:
the number a is 4/5 of the number b 2 part of number a is number b
Answer:
5/4 of a
Step-by-step explanation:
1. Given: f(x)= x* - 6x² + 7x-6
(a) Using correct limit notation, describe the end behavior of f(x).
Consider the given figure, which shows groups of dots arranged in increasingly larger hexagons. If the pattern continues, the next group of dots would have 61 dots. Which of
the following statements best describes the sequence that represents the number
of dots in each group?
A The sequence is arithmetic, because the first differences are constant.
B) The sequence is arithmetic, because the second differences are constant.
c) The sequence is quadratic, because the first differences are constant.
The sequence is quadratic, because the second differences are constant.
Answer:
a
hddhdhdhhdgdhdgdhf
yyeyeyehrggggdgfhfhhfbfbdbfbdfbbfhhbfbdvwshhdgnhh
The sequence is arithmetic because the second differences are constant. Then the correct option is B.
What is a sequence?A sequence is a list of elements that have been ordered in a sequential manner, such that members come either before or after.
Consider the given figure, which shows groups of dots arranged in increasingly larger hexagons.
If the pattern continues, the next group of dots would have 61 dots.
The first difference will be
The difference between 7 and 1 is 6.
The difference between 19 and 7 is 12.
The difference between 37 and 19 is 18.
The difference between 61 and 37 is 24.
The second difference will be
The difference between 12 and 6 is 6.
The difference between 18 and 12 is 6.
The difference between 24 and 18 is 6.
Thus, the sequence is arithmetic, because the second differences are constant. Then the correct option is B.
More about the sequence link is given below.
https://brainly.com/question/21961097
Please help, brainliest for correct answer
Answer:
The correct answer is m∠2 = 120°
Step-by-step explanation:
There is a triangle rule that states the outer angle of an angle in a triangle is equal to the sum of the remaining two angles in that triangle, which means that m∠2 = 52° + 68° = 120°. This can be proven correct because the sum of two of the angles in the triangle is 120°, which means the final angle is 60°. Since m∠2 is the outer angle of 60°, that means it will be 180° - 60° or 120°.
Answer:
m<2+= 60
Step-by-step explanation:
Jane had $d to buy three Beanie Babies. (In our problem, they all cost the same).
If she were to buy all three, she’d spend all her money. Instead, she bought just one.
How much money does Jane have left after buying the Beanie Baby? Brainliest to correct answer:)
Answer:
$2/3d
Step-by-step explanation:
since it says that if she were to buy all three beanie babies, she'd spend all of her money, this means that since she bought 1, she only used up 1/3 of her money, or $1/3d.
so, after buying the beanie baby, she has $2/3d left.
3 divided by 4 in fraction form
Simplify 5x + 4x + 1.
Answer:
9x + 1
Step-by-step explanation:
Combine like terms. Like terms are terms with the same amount of the same variables.
Add 5x and 4x:
5x + 4x + 1
(5x + 4x) + 1
9x + 1
9x + 1 is your answer.
~
) Which expression is equivalent to -24 - 12w?
6(4 - 2w)
-6(4 + 2w)
6(-4+ 2w)
-6(4 - 2w)
Use the formula SA = 2(lw) + 2(wh) + 2(lh) to find the surface area for a rectangular prism with the L of 2.1 yd, a width w of 1.86 yd, and a high h of 6 yd.
Answer:
SA = 19.92 yd²
Step-by-step explanation:
SA = 2(2.1) + 2(1.86) + 2(6) = 19.92 yd²
Asanji stands at the edge of the top of a tall building and lobs a watermelon up into the air then proceeds to watch it fall to the street below (luckily it's empty because everybody is at home). The equation below represents the height, off the ground in meters, of the watermelon t seconds after Asanji has thrown it.
h = -4.9t^2 + 9.8t + 28
Approximately, how long does it take the watermelon to hit the ground? Round to the nearest tenth of a second.
9514 1404 393
Answer:
3.6 s
Step-by-step explanation:
This is nicely solved by a graphing calculator. It takes about 3.6 seconds to hit the ground.
__
We notice that the vertical velocity is a multiple of the leading coefficient, so we can solve this by completing the square.
0 = -4.9(t^2 -2t) +28 . . . . . for h = 0
28 +4.9 = 4.9(t^2 -2t +1) . . . . . rearrange, add 4.9 to both sides
32.9/4.9 = (t -1)^2
1 +(1/7)√329 = t ≈ 3.5912. . . . . square root and add 1
It takes about 3.6 seconds for the watermelon to hit the street.
3w-4z=8
2w+3z=-6 solve
Answer:
W = 0
Z = -2
Step-by-step explanation:
While simplyfying the equation, i noticed that one is 24 and the other is -24, which meant that one value is non existent, and after i found out that w = 0 imputing the reslut made that easier
What is the area of this
Answer:
your answer will be 699.78 km
Step-by-step explanation: