Answer:
I think it might be D
Step-by-step explanation:
Miranda surveyed her classmates about the number of cousins each of them has. Her results are shown in the box plot below. Number of Cousins 3 4 5 6 7 8 9 Cousins Based on the data in the box plot, which statement could be true? There are more students who have 7 to 9 cousins than 6 to 7 cousins. The range of the number of cousins is 9. There is the same number of students with more than 6 cousins than the number of students with less than 6 cousin. number of cousins is 6.
Answer:
third option
Step-by-step explanation:
the median - of 6 - divides the data set into halves (theoretically, number of cousins is 50% less than 6 and 50% more than 6)
Answer:
Step-by-step explanation:so you have to divide
A teacher wants to find out the average number of weekly reading hours of her students. She noted the number of reading hours of 5 of her students, as shown below:
7, 8, 6, 5, 9
Which measure of central tendency is most appropriate for this situation and what is its value?
Only the mean; 7
Only the median; 6
Either the mean or median; both are 6
Either the mean or median; both are 7
Six measurements were made of the magnesium ion concentration (in parts per million, or ppm) in a city's municipal water supply, with the following results. It is reasonable to assume that the population is approx. normal.
DATA: 202, 164, 157, 177, 113, 213202, 164, 157, 177, 113, 213.
Based on a 98% confidence interval for the mean magnesium ion concentration, is it reasonable to believe that the mean magnesium ion concentration may be greater than 195?
Answer:
The 98% confidence interval for the mean magnesium ion concentration is between 122 ppm and 220 ppm. As the lower bound of the interval is below 195, it is not reasonable to conclude that the mean magnesium ion concentration may be greater than 195
Step-by-step explanation:
The six measurements are:
202, 164, 157, 177, 113, 213
Sample mean:
Sum of all values divided by the number of values which is 6. So
[tex]S_m = \frac{202+164+157+177+113+213}{6} = 171[/tex]
Sample standard deviation:
Square root of the difference squared between each value and the mean, and divided by 1 subtracted by the sample size. So
[tex]s = \sqrt{\frac{(202-171)^2+(164-171)^2+(157-171)^2+(177-171)^2+(113-171)^2+(213-171)^2}{5}} = 35.69[/tex]
Confidence interval
We have the standard deviation for the sample, which means that the t-distribution will be 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 = 6 - 1 = 5
98% confidence interval
Now, we have to find a value of T, which is found looking at the t table, with 5 degrees of freedom(y-axis) and a confidence level of [tex]1 - \frac{1 - 0.98}{2} = 0.99[/tex]. So we have T = 3.365
The margin of error is:
[tex]M = T\frac{s}{\sqrt{n}} = 3.365\frac{35.69}{\sqrt{6}} = 49[/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 171 - 49 = 122 ppm
The upper end of the interval is the sample mean added to M. So it is 171 + 49 = 220 ppm
The 98% confidence interval for the mean magnesium ion concentration is between 122 ppm and 220 ppm. As the lower bound of the interval is below 195, it is not reasonable to conclude that the mean magnesium ion concentration may be greater than 195
The length of a rectangle is 3 times the width, w. Which expressions represent the perimeter of the rectangle?
A - 4w
B - 7w
C - 8w
D - 5w + 2w
E - 2(3w + w)
F - 2(3w) + 2w
Answer:
c,e,f,
Step-by-step explanation:
The answer for this question is C, E and F .
Given that the length is 3 times the width. So firstly, you have to find the expression of length :
Let width = w,
Next, the perimeter of rectangle is P = 2(length+width) so you have to substitute the expression into the formula :
Let length = 3w
Let width = w,
have a good day /night
may i please have a branllist
Find the measure of < 1.
ZABD and ZDBC are supplementary angles.
What is the measure of x?
x = [?]°
D
120%
AT
>C
B
Angles are not drawn to scale.
Enter
Answer:
Solution given:
x+120°=180°[linear pair][supplementary]
x=180°-120=60°
x=60° is your answer
Mrs. Cordova drove a distance of 15/4 miles. Which distance is equivalent to 15/4 miles? A. 3 3/4 miles B. 3 1/4 miles C. 1 4/5 miles D. 1 4/11 miles
Answer:
a. 3 3/4 miles
Step-by-step explanation:
15/4 =3 3/4
Determine if the following shapes
are similar.
Answer:
No
Step-by-step explanation:
25-18 = 7 w
45-36=9 l
They don't match up ^
7x + 5 (x+3)+ 4x + x + 2
7x + 5(x + 3) + 4x + x + 2 =
= 7x + 5x + 15 + 4x + x + 2 = 17x + 17
Answer:
17x + 17
Step-by-step explanation:
Give me Brainllest
Which object is located at the point (4.3)
A. Star
B. Circle
C. Triangle
D. Rectangle
Which one is it help me pls
please help immediately
Answer:
-4,0
Step-by-step explanation:
Mollie had a 15–ounce cappuccino at her neighborhood coffee shop. The cappuccino had 170 calories. If Mollie walks for one hour, she burns 246 calories. For how many minutes must Mollie walk to burn off the calories in the cappuccino? (Round your answer to the nearest minute.)
Answer:
41 mins
Step-by-step explanation:
246 cal burned in 60 mins
1 cal burned in 60÷246 mins
Thus,
170 cal Burned in 170×(60÷246) mins
= 41.46 mins
round to 41 mins
4. Which number has the smallest value?
O s
Os
O
Os
w
O s
Step-by-step explanation:
The first fraction has the smallest value
You have a cylinder that has a diameter of 2 and height of 5
Answer:
15.71 cubic inches
257.41 cm³
0.26 liters
Step-by-step explanation:
A water tank is in the shape of a cylinder with a height of 20 feet and a volume of 1,004.8 cubic feet. What is the radius, in feet, of the water tank?
Answer:
This answer is A
Step-by-step explanation:
Just believe me its the right answer
Solve and check please i need help !
Step-by-step explanation:
Given,
r ÷ 6 = 10
=> r = 10 × 6
=> r = 60 (Ans)
Checking. :LHS = r ÷ 6. RHS = 10
[By putting value r = 60 ]
= 60 ÷ 6
= 10
Hence,
Hence,LHS = RHS verified.
Eddie's bedroom is shaped like a rectangle. It has an area of 208 square feet. The width of the room is 13 feet. What is the length?
Answer:
16
Step-by-step explanation:
Answer:
16 feet is the length.
Step-by-step explanation:
The area of a rectangle is A = L x W
If we know the area then:
208 = L x 13
208/13 = L
L= 16 feet
Please help please no random Answers and also please explain
Answer: A- she can not mow 1 and 1/4 in an hour.
Step-by-step explanation:
set up a ratio
[tex]\frac{.5}{25} =\frac{x}{60}[/tex] (1/2 acre is 25 minutes, x acre in 60 minutes)
cross multiply to solve
.5(60)=25x
30=25x
1.2=x- she can mow 1.2 acres in 60 minutes, 1.2= [tex]1\frac{1}{5}[/tex]
What is the mean?
1 6 1 10 5 5 7
Answer:
5
Step-by-step explanation:
if u add al of these it equals 35 divided by 7 equals 5
What’s 2+2?
(Ik it’s easy I’m tryna help ya out w points)
Your answer need enthusiasm!
Example:
ALL CAPS
Exclamation points!!!!!
Repeat in words like: YES YES
Needs funny words like, GURL, I wOnDeR wHat, etc.
Be creative! It doesn’t have to be correct, but funny!
Answer:
GURLLL I KNOW YOU KNOW 2+2=4. YES QUEEN SLAYYYY
Step-by-step explanation:
plsssssss helpppp i may fail lol
Answer:
Step-by-step explanation:
part A= 34
part b=15 inches
part c= 3 1/3 feet
Find value of x, in simplest radical form.
Answer:
√99
Step-by-step explanation:
a power 2 = 15 power 2 + a power 2
18 power 2 = 15 power 2 + x power 2
324 = 225 + x power 2
324 - 225 = 99 + power 2
so the answer is √99
Test Pythagorean Theorem
> Chemistry: Periodic Table of Elen
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Unit Test: Pythagorean Theorem
UNIT TEST:
Pythagorean Theorem
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ABCD is a right triangle. The length of the hypotenuse is 18 centimeters. The length of one of the legs is 14 centimeters.
What is the length of the other leg?
Enter your answer, as a decimal rounded to the nearest tenth, in the box
Answer:
11.31 cm
Step-by-step explanation:
you got the k12 link to
plus you wanna get on my animal crossing island
the dodo code is 98GVY
calculate the radius if the circumference of a circle is 64 cm (use π = 22/7)
Joe has read 80% of a book. He has 6 more pages to finish. How many pages are there in the book?
Answer:
30 pages in this book
Step-by-step explanation:
20% is equal 6 pages
so 80% is equal (80/20)*6+6=30
A ferry began its journey at 08 00 and travelled 208 km towards its destination.
The average speed of the ferry was 32 km/h. What time did the ferry reach its
destination?
please help
answer:
14 30
Step-by-step explanation:
208/32=6.5
6.5 hours is 6 hours 30 min
08 00 + 6h 30min =14 30/2.30
The ferry reached its destination at approximately 14:30 or 2:30 PM.
To determine the time the ferry reached its destination, we need to divide the distance traveled by the average speed of the ferry.
Distance traveled = 208 km
Average speed = 32 km/h
Time = Distance / Speed
Time = 208 km / 32 km/h
Calculating this, we find:
Time = 6.5 hours
Since the ferry started its journey at 08:00, we can add 6.5 hours to that time to determine the arrival time.
08:00 + 6.5 hours = 14:30
Therefore, the ferry reached its destination at approximately 14:30 or 2:30 PM.
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the formula for the area of a triangle is 1/2bh=A. Which of the not a first step to rearrange this formula to find to find the base of the triangke?
Answer:
base=area=1/2b×h
Step-by-step explanation:
it's a pleasure to help you goodbye. if I'm wrong tell me right away.
whats the answer fto 2puls 2
Answer:
The answer to this question is 4.
A nursery owner buys 7 panes of glass to fix
some damage to his greenhouse. The 7 panes
cost $15.05. Unfortunately, he breaks 2 more
panes while repairing the damage. What is the
cost of another 2 panes of glass?
Answer:
$4.30 for 2 glass panes
Step-by-step explanation:
15.05/7=2.15
$2.15 per glass pane
2.15(2)=4.30
$4.30 for 2 glass panes
1. Of the 100 fourth-grade students at Patterson Elementary, 57 are girls. What portion of the fourth-grade class at Patterson elementary is female? Express your answer as a decimal.
Answer:
girls 57/100 57% 0.57
Step-by-step explanation:
boys 43/100 43% 0.43
all the ways
The portion of girls in the fourth grade class will be 57/ 100 and in the decimal form it will be 0.057.
It is given that there are total 100 students at a school in fourth grade out of which 57 are girls.
We have to find out the portion of girls in the fourth grade class and express it to decimal.
What is the decimal fractions ?
Decimal fractions are the fractions in which the denominator must be 10 or a multiple of 10 i.e., 100, 1000, 10000, and so on.
As per the question ;
57 are girls out of total 100 students in a class at a school.
The number of boys will be ;
= 100 - 57 = 43
The no. of girls in fraction form will be ;
= 57 / 100
and in the decimal form it will be ;
= 0.057
The no. of boys in decimal form will be ;
= 47 / 100
= 0.047
Thus , the portion of girls in the fourth grade class will be 57/ 100 and in the decimal form it will be 0.057.
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