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find the sum and divide by the number of values
Mean equals to the sum of terms divided by the number of terms.
Related Questions
Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
Solve the following equation.
U + 2 = 4
Answers
Answer:
U=2
Step-by-step explanation:
This is a simple one-step algebraic equation. In algebra to solve equations, you should use the properties of equality. The properties say that an equation remains true as long as the same thing happens on both sides. For this equation, the property of subtracting should be used; this property states that the same number can be subtracted from both sides. To find U, isolate the variable by subtracting 2 from both sides. This leaves U=2.
-2 -2
U = 2
2 + 2= 4
plz answer 7-12!!!!!!!!!!!!!!!
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Answer:
7: is 20+8a
8: is 8w+48
9: is 4a+12b
10: is 35y-21z
11: is 44a-33
12: is 3xy+4x
but give imbadatmathh the points
Step-by-step explanation:
hope this helps
what is thissssssss????? pls help
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This graph represents a linear function
select the equation represented by the graph
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Y=4/1x -1
Answer: \(y = \frac{1}{4} x - 1\)
Step-by-step explanation: In general, know that the equation for a linear graph is \(y = mx + b\), where
m = \(\frac{rise}{run}\) = the slope of the linear functionb = the y intercept.In our case,
m = \(\frac{rise}{run}\) = \(\frac{1}{4}\)b = -1
Use the best-fit line below to predict the value of y when x = 7
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Answer:
the answer is 6 because when x=7 on the line it is also equal to 6 on the y axis
The graph shows the number of hours that Tammy spends typing for work, x, and the amount of pay that she earns, y.
On a graph titled Tammy's Pay, number of hours is on the x-axis and pay in dollars is on the y-axis. A line goes through points (2, 18) and (8, 42).
What does the y-intercept represent?
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Answer: The y-intercept is the initial amount Tammy earns.
Step-by-step explanation:
Always remember that for graphs, the y-intercept is the initial amount. In this case, it would be the initial amount or the very first amount Tammy earns. If the line goes through the origin (0,0), that means that Tammy earns $0.00 for 0 hours of working.
Need help solving this problem
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Answer:
17 i think
Step-by-step explanation:
The equation for a proportional relationship is y =5.8x. The graph of the relationship passes through the point (1,5.8) which represents the *blank*
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Simplify (7 x 10 ^−13) − (4.2 x 10 ^−15).
6.958 x 10 ^−15
2.8 x 10 ^−15
6.958 x 10 ^−13
2.8 x 10 ^−13
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Answer:
6.958 x 10^-13
Step-by-step explanation:
(7x10^-13) - (4.2x10^-15) = 6.958E-13
I took away the E and saw back on the first parentheses. There was a 10^-13 so i got the idea to take that piece into the answer.
side note - I was actually haven't been taught this yet, this is a complete guess. Notify me if I'm wrong (I probably am)
The value of the expression (7 x 10⁻¹³) − (4.2 x 10⁻¹⁵) will be 6.958 x 10⁻¹³. Then the correct option is C.
What is subtraction?It simply implies subtracting something from an entity, group, location, etc. Subtracting from a collection or a list of ways is known as subtraction.
The expression is given below.
⇒ (7 x 10⁻¹³) − (4.2 x 10⁻¹⁵)
Simplify the equation, then the value of the expression will be
⇒ (7 x 10⁻¹³) − (4.2 x 10⁻¹⁵)
⇒ (7 x 10⁻¹³) − (0.042 x 10⁻¹³)
⇒ 6.958 x 10⁻¹³
The value of the expression (7 x 10⁻¹³) − (4.2 x 10⁻¹⁵) will be 6.958 x 10⁻¹³. Then the correct option is C.
More about the subtraction link is given below.
https://brainly.com/question/4319655
#SPJ2
The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.
Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside
Part A: Calculate the measures of center. Show all work. (2 points)
Part B: Calculate the measures of variability. Show all work. (1 point)
Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)
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For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21
To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5
Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).
Range: The range is the difference between the largest and smallest values in the dataset.
For Mountain View School:
Range: 9 - 0 = 9
For Seaside School:
Range: 9 - 0 = 9
Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.
For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4
For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5
To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.
Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice
For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.
For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.
Part B:
For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.
For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.
Part C:
If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.
Need help with third question!!!!!!!!!!
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Answer:
1.
Angle 2 = Angle 4 (alternate angles)Angle 1 = Angle 5 (corresponding angles)2.
Angle 1 + Angle 2 + Angle 3 = 180 (angles on a line)
Now,
Angle 2 = Angle 4 (alternate angles)
and Angle 1 = Angle 5 (corresponding angles)
So,
Angle 1 + Angle 2 + Angle 3 = Angle 5 + Angle 4 + Angle 3 = 180
Hence proved
Step-by-step explanation:
Hope this helps
Find the value of the expression when a= -8 and b= -2
a^2-b^2=
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Cans someone help me with 6 and 7 please I am very confused on this two so I’ll appreciate it if u help me!
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Answer:
6. $127.50
7. 275c
Step-by-step explanation:
Q6)
Kerry's workday is 10 hrs. and works 40 hrs. per week, Kerry works for 4 days
Watson's workday is 8 hrs. and works 40 hrs. per week, Watson works for 5 days
Kerry: works 4 days and gets paid $ 12.75 per cat & grooms 15 cats per day, so Kerry makes = 4(12.75 × 15) = 4(191.25) = $ 765
Watson: works 5 days and gets paid $ 12.75 per cat & grooms 10 cats per day, so Watson makes = 5(12.75 × 10) = 5(127.50) = $ 637.50
∴ The difference between their weekly earning is 765 - 637.50 = $ 127.50
Q7)
Given:
There are 'c' number of conferences rooms in the Texas Hotel
Number of foldable chairs in each room = 275
Solution:
So, the total number of chairs in all conference rooms would be c X 275
= 275c
Please help I’m confused
A. 1/15
B. 1/10
C. 2/5
D. 3/5
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Answer: A: 1/15
Step-by-step explanation:
A number cube has 6 sides.
the probability of getting either a 2 or a 3 will be 2/6, (since both events have an equal chance of happening, and they are out of total 6 possible outcomes).
2/6 simplifies to 1/3, so that is the probability of getting either a 2 or a 3
Next, the probability of landing on blue:
it will be 1/5, since there is only 1 blue section out of 5 *equally* divided sections.
Note that the probability includes the word "and". this means that we will use multiplication.
1/3 * 1/5 = 1/15
and thats the answer!
PLEASE HELP!! ThANK YOU
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Answer: i think it is 2 1/8 inches and can you please give brainlest
Step-by-step explanation:
Georgia has been saving her earnings from her lemonade stand. Georgia has 80 dollars to spend. If she buys a new hat for 22 dollars, how many bows can she buy with the remaining money if they cost 5 dollars each?
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Answer:
Step-by-step explanation:
Because she bought a new hat for 22 dollars, subtract that from the 80 dollars.
1. 80-22=58
Next, each bow costs 5 dollars so you’ll have to see how many times 5 goes into 58 to get your answer.
2. 58/5= 11 with three dollars remaining.
That means Georgia can purchase 11 bows with the remaining money.
Answer:
Step-by-step explanation:
Because she bought a new hat for 22 dollars, subtract that from the 80 dollars.
1. 80-22=58
Next, each bow costs 5 dollars so you’ll have to see how many times 5 goes into 58 to get your answer.
2. 58/5= 11 with three dollars remaining.
That means Georgia can purchase 11 bows with the remaining money.
5x11 = 55
She would have 3$ left which isn’t enough for a hat
5x11 = 55
She would have 3$ left which isn’t enough for a hat
Help pls!! it's urgent.
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Answer:
Step-by-step explanation:
Can someone give me a explaination for this?
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For the cube part it’s talking about one side of the cube so it will be:
1/6
For the second part it’s talking about a coin and coins have heads and tails meaning it has two sides so it will be:
1/2
for the probability of rolling tails.
Then i believe you have to multiply the two together which should get you
1/6 • 1/2
1/12
Meaning you have 1 out of a 12 chance of getting tales and rolling a 4 on the cube.
HELP PLz i need dis for a grade
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Answer:
99 IQR . its the last one.
Step-by-step explanation:
..
12. A cyclist travels 40 km at a speed of x km/h. Find the time
taken in terms of x. Find the time taken when his speed is
reduced by 2 km/h. If the difference between the times is
1 hour, find the original speed x.
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Answer:
Step-by-step explanation:
distance = rate times time, so
distance
time = --------------
rate
Here the distance is 40 km and the rate is x. Then
40 km
time = -------------- = (40/x) hr
x km/hr
If the speed is reduced by 2 km/hr, we get:
40 km 40 km 40
time = ------------------------------- or time = ----------------------- = --------- hr
(x km/hr - 2 km/hr) (x - 2) (km/hr) x - 2
The difference between the times is:
40 40
-------- - --------- = 1 hr Solve this for the original speed, x
x - 2 x
40x - 40x + 80 80
----------------------- = 1 hr or ------------ = 1 or 80 = x^2 - 2x
x(x - 2) x(x - 2)
Rewriting this in standard quadratic form: x^2 - 2x - 80 = 0
Here a = 1, b = -2 and c = -80, and so the discriminant b^2 - 4ac is:
(-2)^2 - 4(1)(-80) = 324
The solutions are:
-(-2) ± √324 2 ± 18
x = -------------------- = ------------ = 1 ± 9, or 10 (discard the other root)
2 2
The original speed was 10 km/hr
the answer is 10 km/hr.
PLZZ HELP THIS DUE TODAY AND I STRESSING OUT PLEASE SOMEONE HELP PLZ DON'T SPAM PLZ THS DUE RIGHT NOW PLZZ!!!
1. What two directions could point B be located related to point A? Write two equations to represent the possible locations of point B or in other words, how did you travel to point B. Make a conclusion about the sums in relation to the integers in the equations on the next slide.
2. Explain How you could use absolute value to show that -4+3 and 3+(-4) have the same value. Which property of addition states that these sums are equivalent?
3. You know that the sum of -5 and another integer is a positive integer. What an you conclude about the sign of the other integer? What can you conclude about the value of the other integer?Explain.
4. Jim is standing beside a pool. He drips a weight from 4 feet above the surface of the water in the pool. The weight travels a total distance of 12 feet down before landing on the bottom of the pool. Explain how you can write a sum of integers to find the depth of water.
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Answer:6
Step-by-step explanation:
you need to subtract
Answer:6
Step-by-step explanation:
you need to subtract
please I need help!!!
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Simplify the given expression. Show all steps. Submit your handwritten work or use the equation editor to receive credit.
(z√y√x)^8
\((\sqrt{z} \sqrt{y} \sqrt{x } )^8\)
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\(~\hspace{7em}\textit{rational exponents} \\\\ a^{\frac{ n}{ m}} \implies \sqrt[ m]{a^ n} ~\hspace{10em} a^{-\frac{ n}{ m}} \implies \cfrac{1}{a^{\frac{ n}{ m}}} \implies \cfrac{1}{\sqrt[ m]{a^ n}} \\\\[-0.35em] ~\dotfill\\\\ \left( \sqrt{z} ~~ \sqrt{y} ~~ \sqrt{x} \right)^8\implies \left(\sqrt{zyx} \right)^8\implies \left(\sqrt[2]{(zyx)^1} \right)^8 \\\\\\ \left( (zyx)^{\frac{1}{2}} \right)^8\implies (zyx)^{\frac{1}{2}\cdot 8}\implies (zyx)^4\implies z^4 y^4 x^4\)
Answer:
\(z^{4}\)\(y^{4}\)\(x^{4}\)
Step-by-step explanation:
Another way to write the expression is
(\(z^{1/2}\)\(y^{1/2}\)\(x^{1/2}\)) ^8
the power to power principle tells us that when we raise a power to a power, we multiply the exponents
\(\frac{1}{2}\) x\(\frac{8}{1}\) = \(\frac{8}{2}\) = 4
\(z^{4}\)\(y^{4}\)\(x^{4}\)
Please help with this question,Best answer will be marked as brainliest-
convert the following equations in statement form-
(i) 2x - 1 = 8
(ii) 7y + 3 = 10
(iii) 3y/7 = 1
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ii)seven times any number (x) plus 3 equals 10
iii) three times any number (y) divided by 7 equals 1
Not sure if this what your looking for but hope it helps?!
Parents sold 275 tickets for a fundraiser at the community center. Student tickets cost $3, and adult tickets cost $5. The total value of tickets sold is $1,025. Which system of equations represents the problem? 3x + y = 275 x + 5y = 1025 y = 275 3x + y = 1025 x + y = 275 3x + 5y = 1025 y = x + 275 x + y = 1025
Answers
Answer:
3x+5y=1025
x+y=275
Step-by-step explanation:
We can use system of equations to solve this problem. Let's use x for student tickets and y for adult tickets.
Equation 1
3x+5y=1025
This equation comes from the cost of tickets. Each child ticket costs $3 and each adult ticket costs $5. The total value of tickets sold is $1025.
Equation 2
x+y=275
The total amount of tickets sold was 275.
Point G is plotted on the coordinate grid below. Plot the point of G' the reflection of G over the y-axis.
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What is the measurement of the longest line segment in a right rectangular prism that is 11.2 centimeters long, 6.6 centimeters wide, and 6 centimeters tall?
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Answer:
Step-by-step explanation:
3.1313109
Answer: the answer should equal 3.131
Step-by-step explanation: as this is the measurement of the longest line in right rectangular prism.
Please got brainliest
Write the inequality shown by the graph with the boundary line.
y =?
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Your line is dotted meaning your function will not be equal to and the shaded section is going upward meaning your solutions will all be grader then the expression.
Because the graph is shaded above with a dotted line.
How do you figure out the area of a triangle?
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General formula for area of triangle is \(A=\frac{h_bb}{2}\).
Where:
\(h_b\) is height of triangle perpendicular to base side of triangle.\(b\) is the length of base side of triangle.Multiplying \(h_b\) and \(b\) results in rectangle, dividing that by 2 gives you area of a triangle.
Hope this helps.
Answer:
Area of Triangle = \(\frac{1}{2} (Base)(Height)\)
Step-by-step explanation:
The area of a triangle can be found out by the following formula:
Area of Triangle = \(\frac{1}{2} (Base)(Height)\)
12. Tiger Woods was 4 under par (-4) in the first round. He shot 2 over par (+2) in the second round. He shot the same score in the 3rd and 4th rounds. He finished at 8 under par ( -8). What did he shoot in the 3rd and 4th rounds?