Answer:
4th number = 9Step-by-step explanation:
let 4th number = X
mean = 7
observations = 5, 7, 7, X
..............................................
mean = sum of observations ÷ numbers of observations
7 = 5+7+7+X ÷ 4
28 = 19 + X
28 - 19 = X
9 = X
The mean of the four numbers is 7. Three of the numbers are 5, 7, and 7. So, the 4th number would be 9.
How to find the mean value of a data set?The mean value of the data set is the ratio of the sum of the data set's values to the number of values it has.
If the data set consists of values
[tex]x_1, x_2, ..., x_n[/tex]
, then we get the mean value as:
[tex]\overline{x} = \dfrac{x_1 + x_2 + \cdots + x_n}{n}[/tex]
The mean of the four numbers is 7. Three of the numbers are 5, 7, and 7.
let 4th number = X
Mean = 7
observations = 5, 7, 7, X
Mean = sum of observations / numbers of observations
[tex]7 = 5+7+7+X / 4\\28 = 19 + X\\28 - 19 = X\\9 = X[/tex]
Learn more about mean;
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I don’t know how to solve this. Can anyone help?
Answer:
2529.07cm
Step-by-step explanation:
V=[tex]3\sqrt{3}[/tex] [tex]\frac{3\sqrt{3} }{2}[/tex] a²h
what is the answer ???
Answer:
yoo wouldn't it be the first one
Step-by-step explanation:
cause the prices are close to the median price
Please help quickly!!! Which box and whisker plot has the greatest interquartile range?
Thank you! <3
Answer:
The last one
Step-by-step explanation:
Subtract the third quartile from the first quartile
The third box plot has the greatest interquartile range
What is Statistics?Statistics is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data.
A box plot or boxplot is a method for graphically demonstrating the locality, spread and skewness groups of numerical data through their quartiles.
The interquartile range (IQR) is the width of the box in the box-and-whisker plot.
For first box plot IQR=17-9
=8
For second box plot IQR=14-6
=8
For third box plot IQR=14-5
=9
For fourth box plot IQR=15-8
=7
Hence, the third box plot has the greatest interquartile range
To learn more on Statistics click:
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Sonya wants to buy carpet to cover her whole living room, except for the tiled floor. The tiled floor is 5 3/4 ft by 3 1/2 ft. Find the area the carpet needs to cover.
Answer:
23/14 or 1.642857143
Step-by-step explanation:
we know that
A=lxb
= 5 3/4 divided by 3 1/2
= 23/4 divided by 7/2
= 23/4 x 2/7
= 23/2 x 1/7
= 23/14
or
= 1.642857143
please mark as brainliest
How can you find the volume of a rectangular prism with the following dimensions: length = 7, width = 5, height = 11?
A
7 × 5 + 11
B
7 + 5 × 11
C
7 + 5 + 11
D
7 × 5 × 11
Answer:
It's D
Step-by-step explanation:
Answer is 385
URGENT!!! plz help will give brainlist question is in photo
please help! Explain if you can
Answer:
56 degrees
Step-by-step explanation:
Because DF is a line that makes it 180 degrees we know that the other two angles on that line are are 60 and 64 now we can make an equation:
60 + 64 + x = 180
124 + x = 180
Subtract 124:
x = 56
what is everybody's favorite kaiju?
Answer:
it GODZILLA
Step-by-step explanation:
Answer:i like all kajju
Step-by-step explanation:
I really need someone to help me with this math NO links
Answer:
A. He has $22 because he spends $2 on snacks each day.
B. He spends $2 a day, in the table we can see it decreases by $2 each day, so he spends $2 every day.
C. Yes because the cost evenly decreases by $2, therefore it is a linear relationship.
D. ?
E. X ÷ Y = Z
X being the money, $22
Y being the days, 6
Z being the leftover money, $8
Here's the link!
Just kidding! :)
A.
He starts off with 20$ because day 0 is the start.
B.
He spends 2$ each day because his money is decreasing by 2.
C.
The number of days and Jamal's money left is a linear relationship because he's spending 2 dollars a day, and at the end of day 10, he will have 0 dollars which means it's a decreasing linear equation.
D.
(Picture Included)
E.
y=-2x+0
I hope this helped!+*
Brainliest is appreciated :)
Pls help! Error Analysis problem
Answer:
Ana made a mistake from line 2 to 3
Step-by-step explanation:
From line 2 to 3, on the left side, ana added 2 and 3 but completely ignored the - in front of the 3. the correct answer would have been -x - 21 = 3x + 19
Answer:
Ana made a mistake from line 2 to 3
Step-by-step explanation:
A 50 ft building casts a shadow that is 120 ft long. What is the distance from the top of the building to the end of the shadow?
Helppp ill mark brainliest
look at the picture
Answer:
She will have to earn $3,100
Step-by-step explanation:
6,600-3,500=3,100
Brookwood High School is considering adding co-ed soccer to the sports program for the fall season. In order to get an unbiased sample of interest in soccer, who should the school survey?
A.
every fifth student entering the cafeteria
B.
students in freshman homerooms
C.
girls in PE class
D.
members of the soccer team
what’s 8.234 E14 in standard form?
help me again please
Answer:
With what?
Step-by-step explanation:
DO NOT SEND ME PDFS OR WILL REPORT YOU
Part A: A homeowner wants to purchase new carpet for his rectangular living room, which is 8 feet wide and 12 feet long. What is the area of the carpet needed to completely cover the floor of the living room? Choose the correct answer.
A. 40 feet
B. 40 square feet
C. 96 square feet
D. 96 feet
Part B: Bianca wants to wrap a gift for her sister. The gift is in a box with a length of 10 inches, height of 2 inches, and depth of 3 inches. What is the minimum amount of wrapping paper Bianca needs to completely cover the box?
Part C: Greg had a rectangular vegetable garden that was 4 feet wide by 5 feet long. He increased the length of his garden by 2 feet and doubled the width. How many square feet larger is the area of his new garden compared to the area of his old garden? In a short paragraph, explain your answer in your own words.
Answer:
96 square feet
Step-by-step explanation:
A = W x L
A = 8 x 12
= 96
Hope this helps
math question under cut
Find the AREA of a circle with a diameter of 62 ft. Use 3.14 for the value of pi.
Answer:
3017.54
Step-by-step explanation:
62/2=31
31 x 31 x 3.14=3017.54
Answer:
3017.54
Step-by-step explanation:
A = πr²
The radius is half of the diameter so you divide 2 into 62.
62/ 2 = 31
31 x 31 = 961
961 x 3.14 = 3017.54
Will mark brainliest. Please step-by-step. Thank you.
Answer:
x = 11°
z = 62°
Step-by-step explanation:
To find the value of z, we can observe that the opposite angle measures 62°. The opposite angle will always be equal, so we can determine that the value of z is 62°.
For the value of x, we can subtract the measures that we have already found from the full 360°. We know that there are two angles measuring 62°, so we can subtract both of them from 360 for a remaining measure of 236°.
In this way, we have only two equal angles left to solve. Since we know that they are equal to each other, we can divide the 236° by two to find what the equation measures. So, 13x - 25 = 118.
Solve this equation for x. First, add 25 to both sides.
13x -25 + 25 = 118 +25
Simplify.
13x = 143
Next, divide both sides by 13 to isolate x.
[tex]\frac{13x}{13}[/tex] = [tex]\frac{143}{13}[/tex]
Simplify.
x = 11
We can check this by substituting 11 for x in the original equation.
13(11) - 25 = 118
So, we know for sure that x = 11.
The answer is x = 11° and z = 62°.
I hope this helped :] Good luck ^^
Find the volume of this box of cookies with a length of 9 inches, width of 7 inches and height of 10.6 inches.
26.6 inches cubed
169.6 inches cubed
667.8 inches cubed
706.8 inches cubed
Answer:
667.8 cm³
Step-by-step explanation:
To find the volume of a box;
simply multiply the length, width, and height - and you're good to go! For this case, the box is 9x7x10.6 cm, then the volume of a box is 667.80 cubic centimeters. For dimensions that are relatively small whole numbers, calculating volume by hand is easy. Therefore, the volume of the box is 667.8 inches cubed
Help me because I'm a weeb and have no math skills :)
Answer:
q5. £40.50
q6. didn't know that one sorry
q7. $114.24
Step-by-step explanation:
q5. 55% of £90
10% = 9
5% = 4.5
to get to 50% you do 10% x 5 = 50%
you then do 9 x 5 = 45
after that you add the 45 + 4.5 = 49 .50
after that you do £90 - 49.50 = £40.50
q7. 12% of 102
10% = 10.2
1% = 1.02
2% = 2.04
12% = 10.2 + 2.04 = 12.24
then you do 102 + 12.24 = 114.24
1) At a restaurant, Mike and his three friends decided to divide the bill evenly. If the total bill was $51.24, how mush did each person pay?
Write and solve an equation for the above situation. Use "b" as the variable
2) How many packages of diapers can you buy with $40 if one package costs $8?
Write and solve an equation for the above situation. Use "p" as the variable
Use the image to answer the question.
Which angle(s) is (are) complimentary to the 57ᵒ angle?
Select ALL that apply
Answer:
1, 3
Step-by-step explanation:
measure of angle 1 and 57° form a right angle; measure of angle 1 is equal to measure of angle 3
Answer:
1 and 3
Step-by-step explanation:
Because both equals 33 degree
and 57+33=90 degree
I WILL GIVE BRAINLIEST!!!
Answer:
108
Step-by-step explanation:
Answer:
108 yd^2
Step-by-step explanation:
Cut the figure in half. Make a rectangle and a square.
Now u got a 6ydx6yd square.
And a 6ydx12yd rectangle.
Figure out the square 1st.
6x6=36yd^2
Now figure out the rectangle.
6x12=72yd^2
Now add them together.
72+36=108yd^2
Find the surface area of a cube of side 1/3 unit.
Answer:
The Surface Area Is 2/3
Step-by-step explanation:
The school bus Evie rides is scheduled to arrive at her stop at 8:20 a.m. each day. The table below shows the actual arrival times of the bus for several days that were randomly selected over the past few months. Based on these data, what is the probability that the bus will arrive at Evie's stop before 8:20 a.m. tomorrow?
I have an answer I just want to know how other people would do it..
Answer:
uh yeah i dont really do mud
Step-by-step explanation:
Pls help and don’t answer if you don’t know it! Thanks!
A contractor is building a set of stairs out of concrete. Each stair is exactly the same length, width, and height.
d) Which solid figures can the stairs be broken into? What are the dimensions of each solid figure?
(e) How much concrete will be needed to form the stairs?
Answer:
d) The stairs can be broken into 6 rectangle prisms. The dimensions of each solid figure are 0.576 m3.
e) 3.456 m3
Step-by-step explanation:
d) 1.2/3=0.4
1.8/3=0.6
0.4 x 0.6 x 2.4=0.576
e) 0.576 x 6= 3.456
HELP!!! ALGREBRA!!! THANK YOU!
Answer: B
Step-by-step explanation:
What is the mode interval for the set of data?
60 - 69
70 - 79
80 - 89
90 - 99
Elena is trying to figure out how many movies she can download to her hard drive. The
hard drive is supposed to hold 500 gigabytes of data, but 58 gigabytes are already taken up
by other files. Each movie is 8 gigabytes. Elena wrote the inequality and
solved it to find the solution .
1. Explain how you know Elena made a mistake based on her solution.
2. Fix Elena’s inequality and explain what each part of the inequality means.
Answer: Elena used the "greater than" sign when she should have used the "less than sign".
The correct inequality is 8x + 58 < 500, where 8 is the amount of gigabytes taken up by a movie, x is the amount of movies, 58 is the amount of gigabytes already taken up, and 500 is the maximum storage capacity in gigabytes. The < sign denotes that 500 CANNOT be exceeded.
Step-by-step explanation:
Elena wrote the equation as 8x + 58 > 500, meaning that the amount of gigabytes MUST exceed 500. This does not make sense since a computer would still function even with less movies. Since the hard drive has a capacity of 500 GB, it cannot go higher, making the correct inequality 8x + 58 < 500.