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Related Questions
Select the correct answer from each drop-down menu.
Ray recorded the amount he paid for his phone bill each month for the year in this table.
$28 $27
$26 $25
$32 $26
$30 $25
$30 $28
$28 $30
The range of the data is
M. and the interquartile range is
Answers
Answer:
im pretty sure its 4
Step-by-step explanation: ur pretty to
Answer:
The interquartile range is $4
The range is NOT $4
Write each as a decimal. Round to the thousandths place.
9) 78.4%
10) 29%
Help
Answers
Answer:
[tex](a) 78.4\% = 0.784[/tex]
[tex](b) 29\% =0.290[/tex]
Step-by-step explanation:
Required
As a decimal to nearest thousandth
Solving (a): 78.4%
[tex]78.4\%[/tex]
Express as fraction
[tex]78.4\% = \frac{78.4}{100}[/tex]
Solve fraction
[tex]78.4\% = 0.784[/tex] ----- This is already in thousandth place
Solving (b): 29%
[tex]29\%[/tex]
Express as fraction
[tex]29\% =\frac{29}{100}[/tex]
Solve fraction
[tex]29\% =0.29[/tex]
Approximate
[tex]29\% =0.290[/tex]
ANSWER FAST!!!
1. x - 10.9= 16.7
2. x - 5=37
Answers
2. x =42
Solve for n.
n + 184 = –375
Answers
Answer:
n=-559
Step-by-step explanation:
Answer:
n=-559
Step-by-step explanation:
you need to get n by itself so you subtract 184 from both side n=-375-184 then simplify it to n= -559 leaving you with the answer.
hope this helped
A company developing a new cellular phone plan intends to market their new phone to customers who use text and social media often. In a marketing survey, they find that customers between age 18 and 34 years send an average of 48 texts per day with a standard deviation of 12. The number of texts sent per day are normally distributed.
Required:
a. A customer who sends 78 messages per day would correspond to what percentile?
b. A customer who sends 78 messages per day would be at ______th percentile.
Answers
Answer:
A customer who sends 78 messages per day would be at 99.38th percentile.
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.
Average of 48 texts per day with a standard deviation of 12.
This means that [tex]\mu = 48, \sigma = 12[/tex]
a. A customer who sends 78 messages per day would correspond to what percentile?
The percentile is the p-value of Z when X = 78. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
[tex]Z = \frac{78 - 48}{12}[/tex]
[tex]Z = 2.5[/tex]
[tex]Z = 2.5[/tex] has a p-value of 0.9938.
0.9938*100% = 99.38%.
A customer who sends 78 messages per day would be at 99.38th percentile.
What number is the best prediction! Please help :(
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Answer:
28
Step-by-step explanation:
h(x) = x^2+ 2x- 6
what’s the answer
Answers
It equals this graph expression. it's a little cropped, but I'm Sure you know about the y & x axis.
A circle has a circumference of 113.04 units.
Answers
Answer:
The answer may or may not be either the diameter is 36 units, or the radius is 18 units.
Step-by-step explanation:
Since there is no question, then I am just assuming the question is what is the diameter or the radius. You would find this by dividing the circumference by pi:
113.04 / 3.14 = the diameter is 36
36 / 2 = the radius is 18
I hope this was helpful!!! Could I get brainliest?
Have a nice day!!
triangular pyramid has congruent faces.
The total surface area is 111 cm². The
height of the trinket box is 6.5 cm. What
is the volume of the trinket box to the
nearest tenth of a cm?
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Answer:
117.5 cm that the answer on your question
What percent of 36 is 20?
Answers
Answer:
55.56%
Step-by-step explanation:
Answer:
55.56
Step-by-step explanation:
plzzzzzz help for a brianly
Answers
Answer:b
Step-by-step explanation:
9x2 + 11x + 3 = 0
Solving using the Quadratic Formula
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Answer:
Step-by-step explanation:
The demon drop at cedar point in Ohio takes riders to the top of a tower and drops them 60 feet. A function that approximates this ride is h = 16^2 + 64x - 60, where h is the height in feet t
Answers
Completion of question:
The Demon Drop at Cedar point in Ohio takes riders to the top of the tower and drops them 60 feet. A function that approximates this ride is h=-16^t2 + 64t + 60 where h is the height in feet and t is the time in seconds. About how many seconds does it take for riders to drop to the ground?
Answer:
4.78 s
Step-by-step explanation:
Given the equation :
h = - 16^t2 + 64t + 60
Using the quadratic formula ; where
a = - 16 ; b = 64 ; c = 60
Dropping to the ground, h = 0
16^t2 + 64t - 60 = 0
-b ± (√b²- 4ac) / 2a
-64 ± (√64²- 4(-16)(60)) / 2(-16)
-64 ± (√7936) / - 32
(-64 ± 89.08) / - 32
(-64 + 89.08) / - 32 = - 0.783 OR
(-64 - 89.08) / - 32 = 4.78
Reject the negative
t = 0.783 seconds
Write 3 3/4 feet as a single fraction greater than one.
Answers
9/4
step-by-step explanation:
3/4 + 3/4 + 3/4
9/4
The solution is 3 3/4 feet as a single fraction greater than one is: 15/ 4
What is fraction?A fraction represents a part of a whole or, more generally, any number of equal parts. When spoken in everyday English, a fraction describes how many parts of a certain size there are, for example, one-half, eight-fifths, three-quarters.
here, we have,
given that,
3 3/4 feet
now, we have to Write 3 3/4 feet as a single fraction greater than one.
so, we have,
3 3/4
i.e. 3*4 + 3 / 4
= 15/ 4
or, we have,
3 3/4
i.e.
3/4 + 3/4 + 3/4
=9/4
now, single fraction greater than one 15/ 4 > 1.
Hence, The solution is 3 3/4 feet as a single fraction greater than one is: 15/ 4.
To learn more on fraction click:
brainly.com/question/10354322
#SPJ2
Please help i will mark brainlist
Answers
Answer:
72.22 inches
Step-by-step explanation:
Okay so the formula for circumference is C=2πr so since the diameter is twice the radius, the radius is 11.5. Now you have to multiply 11.5 and 2. That equals 23. Now you have to multiply 23 by π which is about 3.14. 23 times 3.14 is 72.22 inches.
Hope this helped!! :D
Find the surface area of the prism.
Answers
Answer:
if you mean the face of the triangle the area equal 40 by 5×8=
and the little triangle on the left his area is 6
if you want the full area of prymaid its 24+6+6+40+32=108 its all figure areas sorry i cant understand engilish very well so i write all that
Hoang has worked as a nurse at Springfield General Hospital for 7 years longer than her friend Bill. Two years ago, she had been
at the hospital for twice as long. How long has each been at the hospital?
Answers
Answer:
[tex]Bill\to 9\ years[/tex]
[tex]H \to 16\ years[/tex]
Step-by-step explanation:
Let
[tex]H \to Hoang[/tex]
[tex]B \to Bill[/tex]
Currently:
[tex]H = B + 7[/tex]
Two years ago
[tex]H - 2 = 2 * (B -2)[/tex]
Required
H and B
We have:
[tex]H - 2 = 2 * (B -2)[/tex]
Open bracket
[tex]H -2 =2B - 4[/tex]
Add 2 to both sides
[tex]H -2+2 =2B - 4+2[/tex]
[tex]H =2B -2[/tex]
Substitute [tex]H = B + 7[/tex]
[tex]B + 7 =2B -2[/tex]
Collect like terms
[tex]2B - B =7+2[/tex]
[tex]B = 9[/tex]
Substitute [tex]B = 9[/tex] in [tex]H = B + 7[/tex]
[tex]H = B + 7[/tex]
[tex]H = 9 + 7[/tex]
[tex]H = 16[/tex]
160% of what number 56?
Answers
Answer:
160% of 35 is 56.
Step-by-step explanation:
[tex]\frac{56}{y} :\frac{160}{100}[/tex]
y · 160 = 56 · 100
160y = 5600
160y ÷ 160 = 5600 ÷ 160
y = 35
The high school is 3.6 inches from the middle school on a map. Each half inch on the map represents 0.4 mile. What is the actual distance between the two schools?
2.88 miles
4.5 miles
7.2 miles
9 miles
Answers
Answer:
2.88 miles
Step-by-step explanation:
because 3.6/.5 = 7.2
then 7.2 × .4 = 2.88
Find the range and the midrange for the following data set: 7.25, 6.75, 6, 7.5, 7, 7, 7, 7.5, 6, 8.5, 8.5, 6.5, 7, 5.5, 8.5, 7.25, 7.25 a Range = 7.25, Midrange = 6.25 b Range = 3, Midrange = 7 c Range = 5.75, Midrange = 6.5 d Range = 8, Midrange = 7.25
Answers
Answer:
B
Step-by-step explanation:
The min and max numbers are 5.5 and 8.5. To find range, you subtract the bigger number by the smaller number. To find midrange, you find the median of the 2 min and max numbers.
8.5-5.5=3
5.5 6 6.5 7 7.5 8 8.5
1 2 3 4 5 6 7
So the range is 3 and the midrange is 7.
---
hope it helps
graph the solution -3(x+2)+2(4x-6)>22
Answers
Step-by-step explanation:
-3x - 6+ 8x - 12 >22
5x -18 >22
5x -18 +18 >22 + 18
5x/5 > 40/5
x > 8
S.s { 1,2,3,4,5,6,7}
A sector of a circle with radius 8 cm has an angle measure of 120°. What is the area of the sector to the
nearest tenth of an inch?
Answers
Answer:
125.66cm
Step-by-step explanation:
Answer:
64.9 cm
Step-by-step explanation:
Area of a sector is
[tex]A=\pi r^{2} (\frac{angle}{360} )[/tex]
r is 8 and the angle measure is 120
[tex]A=\pi 8^{2} (\frac{120}{360} )\\A=62\pi (\frac{120}{360} )\\A=64.93[/tex]
or 25.5 inches ? The question has the radius measured in cm, but asks for the answer in inches. So depending on how the actual question is worded, the answer will change.
64.9cm is equal to about 25.5 inches
What is the answer for 1/2 + 1/2?
Answers
Answer:
1 is the answer to 1/2+1/2
Answer:
1
Step-by-step explanation:
if you add 1/2 and 1/2, you get 2/2 which is also equal to 1.
A person invests 6500 dollars in a bank. The bank pays 6.5% interest compounded annually. To the nearest tenth of a year, how long must the person leave the money in the bank until it reaches 22600 dollars?
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Does anyone know the answer
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Answer:
d = 126, z = 28
Step-by-step explanation:
The angle with the variable is diagonal from the 105 degree angle. In this case, that means that they are equivalent. So, 105+21 = 126. d = 126 :)
An auto company claims that the fuel efficiency of its sedan has been substantially improved. A consumer advocate organization wishes to compare the fuel efficiencies of its sedan between the 2019 and 2021 models. Each of 12 drivers drove both the 2019 and 2021 models on a highway and the fuel efficiency was measured (in miles per gallon). The same driver drove the same path for both the models.
Driver
Model 1 2 3 4 5 6 7 8 9 10 11 12
2019 31.1 32.4 31.3 33.5 31.7 32.0 31.8 29.9 31.0 32.8 32.7 33.8
2017 28.7 32.1 29.6 30.5 31.9 30.9 32.3 33.1 29.6 30.8 31.1 31.6
Use the 0.1 level of significance to test the claim that the average fuel efficiency of the sedan has improved. Assume normal population.
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Answer:
We reject the Null and conclude that at α = 0.1, the is enough evidence to support th claim that miles per gallon has improved between 2017 and 2019
Step-by-step explanation:
This is a paired t test:
H0 : μx - μy = 0
H1 : μx - μy > 0
The test statistic :
dbar / (Sd/√n)
d = Xi - Yi
d = 2.4, 0.3, 1.7,3,-0.2, 1.1, -0.5, -3.2, 1.4, 2, 1.6, 2.2
dbar = Σd / n = 11.8 / 12 = 0.983
Sd = Σ(d - dbar)²/ (n - 1) = 1.685 (calculator)
Hence,
Test statistic = 0.983 / (1.685/√12)
Test statistic = 0.983 / 0.4864176
= 2.021
Using the test statistic score, we could obtain the Pvalue using the Pvalue FROM Tscore calculator :
Degree of freedom, df = n - 1 = 12 - 1 = 11
Pvalue(2.021, 11) = 0.03415
α = 0.1
Pvalue < α ; We reject the Null and conclude that at α = 0.1, the is enough evidence to support th claim that miles per gallon has improved between 2017 and 2019
Choosing a tuna turkey or cheese sandwich on wheat or white bread with a side of potato chips corn chips or baked potatoes
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Answer:
Cheese sandwich on white bread and a side of potato chips
Step-by-step explanation:
Is 2 a solution to the equation 1/2x-4=5?
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9514 1404 393
Answer:
no
Step-by-step explanation:
Put 2 where x is and see if you get a true statement.
1/2(2) -4 = 5
1 -4 = 5
-3 = 5 . . . . . . False
2 is not a solution to the equation.
__
The solution is x=18.
Simplify 17.6L:20800 ml
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Answer:
x = 10
5x + 4x = 909x = 909x/9 = 90/9x = 10
Step-by-step explanation:
Answer for branliest
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Answer:
1/3
Step-by-step explanation:
P(5) Represents the probability that the spinner will land on 5 after being spun once. Since 5 is one of three options on the wheel, the probability is 1/3
