Answer:
?
Step-by-step explanation:
where are the options?
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:
3. The positive root of 154 is located between which two consecutive integer values?
Answer:
between 12 and 13
Step-by-step explanation:
answer is 12.4
Answer:
Step-by-step explanation:
12²=144
√144=12
13²=169
√169=13
√154 lies between 12 and 13.
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.
V I’m please help I already posted this but I did this answer
Answer: m+1
Step-by-step explanation:
I don't understand this at all.
Answer:
i think the answer is A
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
(✿◠‿◠)
Carrie Ann has a penny bank with 812 pennies in it. She gave her little sister 10 pennies to start her own penny bank savings. She gave 68 pennies to her brother in exchange for taking her turn at doing the dishes. How many pennies does Carrie Ann have in her penny bank? Explain how you got your answer.
Answer:
Just do 812-78 that equals 734.
Answer:
734 pennies
Step-by-step explanation:
10 +68 =78 pennies that she gave to her sister and her brother
812 - 78 =734 pennies has
Solve by elimination.
3x + 4y = -6
5x - 4y = 22
Answer:
Step-by-step explanation:
Just
Emliminate it by 3x’s
Answer:
HOPE THIS HELPED YOU
PLEASE MARK AS THE BRAINLIEST (ㆁωㆁ)
rewrite 1/6 book 2/3 hour as a unit rate
Answer:
1/4 books per hour
Step-by-step explanation: Pls mark brainliest!
Answer:
it is 1\4 bro you working apix quiz don't be cheating
Step-by-step explanation:
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:
What is the measure of angle ONM ?
Answer:
I would say A. 56
Step-by-step explanation:
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.
The suspect was spotted riding the swings earlier in the day. Each swing can hold a maximum weight of 500 pounds. In order to reach the maximum weight, you would have to double the weight of the suspect and add 20 pounds less than the weight of George. Write and solve an equation to represent the suspect's weight.
Answer:
2y + ( x- 20)= 500
y= 520-x/2
Step-by-step explanation:
Let the weight of George be x and the weight of the suspect be y .
The swing can hold a maximum of 500 pounds .
Twice the weight of suspect added with 20 pounds less than the weight of George equals 500.
2y + ( x- 20)= 500
or
2y+x- 20 = 500
adding 20 to both sides
2y+x -20 +20= 500+ 20
or
2y +x = 520
Subtracting x from both sides
2y+ x-x = 520-x
or
2y = 520-x
Dividing by 2 on both sides
y= 520-x/2
The suspect's weight is y= 520-x/2
Answer:
s = 260 - g/2
Step-by-step explanation:
Given the following :
Maximum weight swing can hold = 500 pounds
Let suspect's weight = s
George's weight = g
To reach maximum weight :
Double weight of suspect + (George's weight - 20)
Hence, equation:
2s + (g - 20) = 500
2s + g - 20 = 500
2s + g = 500 + 20
2s + g = 520
2s = 520 - g
Divide through by 2
s = 260 - g/2
A system of equations can be written to represent coln and pricing problems. True or False.
O True
O False
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° .
What are parallel lines cut by a transversal?
Esteban has a big jar f change in his room, he has 600 coins total, and 240 of them are pennies.
What percent of the coins are pennies?
Answer:
40%
Step-by-step explanation:
240/600 = 0.40 * 100% = 40%
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:
Not really anything related but Where should i go to eat?
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
Simplify (5³)⁶, need an answer by today or tomorrow
Answer:
3,814,697,265,625
Step-by-step explanation:
Simplify the expression.
Find the difference
I need help please
Answer:
-2/45
Step-by-step explanation:
Hoped it helped!
What is the discriminant of the quadratic equation 6x2
9x – 8 = 0?
-111
273
111
-273
Answer:
-111
Step-by-step explanation:
what is the value of (-3)^3
Answer:
-27
Step-by-step explanation:
(-3)^3
This is the value inside the parentheses multiplied by itself 3 times
-3 * -3*-3
-27
The graph of a line is shown below.
Based on the graph, what are the rate of change and the y-intercept of the line?
Answer: Change is 1 and the y-intercept is 1/2
Let me know if I’m wrong
Step-by-step explanation:
Write the equation of the line that passes through the given points.
(0.2) and (5,8)
Answer:
y=1.20x+2.00
Step-by-step explanation:
Answer:
y=6/5x+2
Step-by-step explanation:
change in y/change in x =slope
8-2/5-0=6/5
y=mx+b
2=6/5(0)+b
2=b
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!
What’s the answer to this i really need help
Answer:
x = 159°
Step-by-step explanation:
x + 29° = 180° (Because they form a linear pair)
=> x = 180° - 29°
=> x = 159°
If my answer helped, kindly mark me as the brainliest!!
Thanks!!
Answer:
x will be 159 degrees
Step-by-step explanation:
x+29 = 180 I'm working on the same thing x=180 degrees -29 degrees that comes to 159 degrees
Ebony bought 4 cans of Soup A for $6.00.
For each soup, indicate whether the soup has the same price per can as Soup A.
Soup B: 2 cans for $5.00
Soup C: 3 cans for $4.50
Soup D: 5 cans for $5.00
Soup E: 6 cans for $9.00
Perform the indicated operation.
12 ÷ (-6)
6
-18
-2
-72
Answer:
the answer is -2 because positive divided by a negative is equals to a negative so positive 12 divided by -6 it will be equal to -2