Answer:
the answer is 3.9 km/h southeast
In Mr. Britt's class the distribution of ages of his students has a mean of 115 months and a standard
deviation of 3.6 months.
If no students leave or join the class, what will be the mean and standard deviation of the distribution of
student's ages 4 months later?
Using statistical concepts, it is found that the mean will be of 119 months, while the standard deviation will be of 3.6 months, given by option C.
-------------------------------------
The mean of a data-set is the sum of all values divided by the number of values.The standard deviation is the square root of the sum of the difference squared of each observation and the mean, divided by the number of values.If x is added to all values of a data-set, it is also added to the mean, while the standard deviation remains constant.-------------------------------------
Mean of 115 months and standard deviation of 3.6 months.4 months later is the same as adding 4 to each observation.Thus, the mean will be of 115 + 4 = 119 months, while the standard deviation remains constant at 3.6 months.A similar problem is given at https://brainly.com/question/20640860
Answer:
Mean: 119119119 months
Standard deviation: 3.63.63, point, 6 months
Step-by-step explanation:
You have a box that measures 11
inches on each side. What is the
volume of that box
Answer:
1,331in^3
Step-by-step explanation:
A lumber company has 40,000
boards in stock. A construction
company bought 500 boards for
each of its construction projects. If
the lumber company has 12,000
boards left, how many construction
projects did the company have?
Answer:
12500
Step-by-step explanation:
we all know this is not high school math -_-
Graph the line with slope of 4/3
and goes through the point (1,3)
ANSWER THIS FAST!
Answer:
Step-by-step explanation:
y=4/3 x +b
goes through the point (1,3)
3=4/3(1)+b
b=3-4/3
b=9-4/3
b=5/3
equation : y=4/3 x +5/3
The graph of the line with slope of 4/3 and goes through the point (1,3) is shown in attached figure.
What is Equation of line?
The equation of line with slope m and passes through the point (x₁, y₁) is given as;
y - y₁ = m (x - x₁)
Given that;
The slope of line = 4/3
And, Point on line = (1, 3)
Since, The equation of line with slope m and passes through the point (x₁, y₁) is given as;
y - y₁ = m (x - x₁)
Thus, The equation of line with slope 4/3 and passes through the point (1, 3) is given as;
y - 3 = 4/3 (x - 1)
Solve as;
3 (y - 3) = 4 (x - 1)
3y - 9 = 4x - 4
3y = 4x - 4 + 9
3y = 4x + 5
y = 4/3x + 5/3
Thus, The equation of line will be;
y = 4/3x + 5/3
So, The graph of the line y = 4/3x + 5/3 is shown in attached figure.
Learn more about the equation of line visit:
https://brainly.com/question/13763238
#SPJ2
Which number line shows the solution to 6 + (−6)? (1 point)
1.A number line is shown from negative 12 to 0 to positive 12. There are increments of 2 on either side of the number line. An arrow pointing from 0 to negative 6 is shown. Above this, another arrow pointing from negative 6 to negative 12 is shown.
2.A number line is shown from negative 12 to 0 to positive 12. There are increments of 2 on either side of the number line. An arrow pointing from 0 to 6 is shown. Above this, another arrow pointing from 6 to 0 is shown.
3.A number line is shown from negative 12 to 0 to positive 12. There are increments of 2 on either side of the number line. An arrow pointing from 0 to negative 6 is shown. Above this, another arrow pointing from negative 6 to positive 6 is shown.
4.A number line is shown from negative 12 to 0 to positive 12. There are increments of 2 on either side of the number line. An arrow pointing from 0 to 6 is shown. Above this, another arrow pointing from 6 to 12 is shown.
Answer:
a negative number plus a positive number when both numbers are the same like for example: -4 + 4. it would be 0. so -6 + 6 = 0
Step-by-step explanation:
6
0 ------------>
-6
0 <------------
Questions
1 point
Previous
Calculate the mean of Bryanna's test scores if she has scored 75, 97, and 92 so far this
semester
A 284
o
B
88
c. 75
D
Work Shown:
Add up the values
75+97+92 = 264
Then divide by 3 since there are 3 scores
264/3 = 88
You can write this all as one step
(75+97+92)/3 = 88
So in short, you add the scores and then divide by the number of scores.
What are parallel lines cut by a transversal?
Please HELP with these questions!! Legit answers only!
Answer:
answers below
Step-by-step explanation:
hi! you can plug in the x values given into the equation and solve for y to get your table values.
y=-1(0)+2
y=2
y=-1(1)+2
y=1
y=-1(3)+2
y=-1
y=-3/2 (-2) -1
y=2
y=-3/2 (0) -1
y=-1
y=-3/2 (2) -1
y=-4
hope this helps!
Which describes the association between variables x and y ?
solve the equation. check your solution 6(5-2v)=-4(3v+1)
What is the discriminant of the quadratic equation 6x2
9x – 8 = 0?
-111
273
111
-273
Answer:
-111
Step-by-step explanation:
Solve the equation for z.
-8z + 1 = z-8
Answer:
z= 1
Step-by-step explanation:
move the like terms, collect then calculate, divide on both sides :)
Answer:
z equals -1
Step-by-step explanation:
-8z + 1 = z-8
-9z + 1 = -8
-9z + 9
-9z ÷ 9
z = -1
Which is not a prime number? A. 31 B. 47 C. 49 D. 53
Answer:
49 is not a prime number
Step-by-step explanation:
7 times 7 = 49
Answer:
C) 49
Step-by-step explanation:
Prime numbers are numbers that can only be factored into 1 and it's own number.
In the case of 49, it is a composite number.
Factors of 49: 1 , 7 , 49
1 x 49 = 49
7 x 7 = 49
49 x 1 = 49
~
A system of equations can be written to represent coln and pricing problems. True or False.
O True
O False
Please help! Will give BRAINLIESTwith to the first correct answer!
∠ABC and ∠DBC are complementary angles. If ∠ABC = 6x + 13 and ∠DBC = 4x − 3 what is the value of x?
Answer:
x=8
Step-by-step explanation:
V I’m please help I already posted this but I did this answer
Answer: m+1
Step-by-step explanation:
Write two integers with different signs that have a sum of -25.
Write two integers with the same sign that have a sum of -25.
Answer:
1.
-25+0
-30+5
2.
-15-10
-20-5
Just solve for 50 points and brainliest!
10-5x3=
6x4+10=
Answer:
10-5x3=15
Step-by-step explanation:
6x4+10=34
Answer:
10-5x3= 15
6x4+10=34
Step-by-step explanation:
Solve and check the following equation. −75 = −5d − 150d =
Answer:
15/31 is the answer.
Step-by-step explanation:
-75 = -5d- 150d
-5d- 150d= - 155d
divide -75 from -155d
-155d / -155= -75 / -155
=15 / 31
An angle measures 143.4° less than the measure of a supplementary angle. What is the measure of each angle?
Measure of an angle = x
Measure of another angle = x - 143.4
Each angle is the supplement of the other angle .
Which means :-
[tex]x + x - 143.4= 180[/tex]
[tex]2x - 143.4 = 180[/tex]
[tex]2x = 180 + 143.4[/tex]
[tex]2x = 323.4[/tex]
[tex]x = \frac{323.4}{2} [/tex]
[tex]\color{hotpink}x = 161.7[/tex]
Then :-Measure of the first angle :-
[tex]\color{hotpink} = 161.7°[/tex]
Measure of the second angle :-
[tex] = x - 143.4[/tex]
[tex] = 16.7 - 143.4[/tex]
[tex]\color{hotpink} = 18.3°[/tex]
As the sum of the measure of each angle adds up to 180° (161.7+18.3=180) , we can conclude that we have found out the correct value of each of the angles .
Therefore , the measure of the first angle is = 161.7° and the measure of it's supplementary angle is = 18.3° .
Not really anything related but Where should i go to eat?
Do this for a brain thingy!!!!
1087^{2}-12(3)=
Answer:
1181533
Step-by-step explanation:
It's called brainliest.
You can use Math way for that btw.
Answer:
simplifying the expression
Step-by-step explanation:
1181533
On Monday morning Sergio Pappas had $14.78 in cash.
During the week he earned $45.00 for cutting lawns
and $35.75 for yard work, and he spent $25.23 on food
and $22.12 on gas.
# Problem Solution
a. What were Sergio's total earnings for the week?
b. What total amount did he have to spend during the week?
c. What was his balance at the end of the week?
( please do not comment if you do not know the answer, would be appreciated )
Answer:
Step-by-step explanation:
a-As he had earned $45.00 for cutting lawns and had earned $35.75 for yard work during the week and had not earned more than that, in order to find the total amount of money he earned during the week, we have to add $45.00 and $35.75 together which will be $80.75. So we can say that he had earned $80.75 during the week.
b- Since he had spent $25.23 on food and $22.12 on gas, we have to add them to get the total amount of money spend during the week. So after adding the amount of moneys spent, we will get $47.35.
c- Finally, to find out how many money he was left with, we have to subtract the amount of moneys spent from the total amount of earnings for the week. So, after subtracting $47.35 from $80.75 he is left with $33.4.
What is the unit rate for 64 books on 4 shelves
Answer:
the unit rate would be 16 books per shelves because 64/4 would equal 16:)
Step-by-step explanation:
Yesterday the temperature at noon was 25.9°F. By midnight, it had decreased by
26°F. What was the temperature at midnight?
Answer:
-.1 degrees
Step-by-step explanation:
Answer:
- 0.1 Fahrenheit
Step-by-step explanation:
Its just 25.9- 26
Whats the Square root of 13?
Answer:
3.25
Step-by-step explanation:
Go 3.25 units of distance in any direction. Turn 90 degrees clockwise and go 3.25 units of distance in a straight line. Turn 90 degrees clockwise and go 3.25 units of distance in a straight line. Turn 90 degrees clockwise and go 3.25 units of distance in a straight line.
You will have travelled along a square route whose total distance is 13 units. Alternatively you could have turned counter clockwise each time.
Simplify (5³)⁶, need an answer by today or tomorrow
Answer:
3,814,697,265,625
Step-by-step explanation:
Simplify the expression.
Determine the domain of the graph above
10 Convert 485 mL into litres.
© 0.485 L
D 485 000 L
B 4.85 L
A 48.5 L
Answer:
c
Step-by-step explanation:
PLZ HELP WILL MARK BRAINLEST 2 or more have to answer and its timed 1 hour
Answer:
z=77
Step-by-step explanation:
z/7−9=2
Step 1: Simplify both sides of the equation.
z−9+9=2+9
1/7z=11
z=77
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