Answer:
[tex] \bar X = \frac{0.4+0.2+0.4+0.6}{4}= 0.4[/tex]
Now we can calculate the absolute deviations from the mean for each value:
|0.4-0.4|=0
|0.2-0.4|=0.2
|0.4-0.4|=0
|0.6-0.4|=0.2
And adding these 4 values and dividing by 4we got the MAD on this case:
[tex]MAD = \frac{0+ 0.2+0 +0.2}{4}=0.1[/tex]
Step-by-step explanation:
We have the following dataset given:
0.4,0.2,0.4,0.6
In order to calculate the MAD we need to calculate the sample mean first with this formula:
[tex]\bar X = \frac{\sum_{i=1}^n X_i}{n}[/tex]
Replacing we got:
[tex] \bar X = \frac{0.4+0.2+0.4+0.6}{4}= 0.4[/tex]
Now we can calculate the absolute deviations from the mean for each value:
|0.4-0.4|=0
|0.2-0.4|=0.2
|0.4-0.4|=0
|0.6-0.4|=0.2
And adding these 4 values and dividing by 4we got the MAD on this case:
[tex]MAD = \frac{0+ 0.2+0 +0.2}{4}=0.1[/tex]
Answer:
0.1
Step-by-step explanation:
Khan Academy
If g = 2; 4g = 32 true or false
Answer:
false
Step-by-step explanation:
4 x (2) = 8
Answer:
False
Step-by-step explanation:
What you need to do is plug 2 in for g.
4g=32
4(2)=32
8=32
This is incorrect, so it is false.
A right triangle has sides of length 3, 4, and x. Find x, if x were the hypotenuse.
Answer:
[tex]x = 5[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
So the right answer is 5.
look at the attached picture
Hope it will help you
Good luck on your assignment
Given the formula A=3.14ab, solve for b.
Answer:
A/ 3.14a=b
Step-by-step explanation:
A=3.14ab
Divide each side by 3.14 a to isolate b
A/ 3.14a=3.14ab/3.14a
A/ 3.14a=b
In a group of Year 9 students, the ratio of boys to girls is 9 : 7. There are 4 more boys than girls in this group. How many students are in this group altogether?
Answer: 32
Step-by-step explanation:
There are 18 boys and 14 girls (4 more boys than girls. 32 students total.
If the ratio of boys to girls is 9 : 7, there are 32 students in this Year 9 group altogether.
Let's denote the number of boys as "9x" and the number of girls as "7x" since the ratio of boys to girls is 9:7. We are also given that there are 4 more boys than girls, so we can set up an equation:
Number of boys = Number of girls + 4
9x = 7x + 4
Now, we can solve for "x":
9x - 7x = 4
2x = 4
x = 2
Now that we have the value of "x," we can find the number of boys and girls:
Number of boys = 9x = 9 * 2 = 18
Number of girls = 7x = 7 * 2 = 14
Finally, to find the total number of students in the group, we add the number of boys and girls:
Total number of students = 18 (boys) + 14 (girls) = 32.
The ratio of boys to girls is 9:7, and there are 4 more boys than girls.
To learn more about ratio click on,
https://brainly.com/question/30925663
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Suppose you are planning a ward party. Last year, there was a similar activity and 150 people attended. If the ward has grown by 9%, how many people do you expect will attend this year? (Round your answer to the nearest whole number.)
Answer:
164 people
Step-by-step explanation:
100% represents the 150 people who attended last year.
this year , there is an increase of 9% , which will make the total percentage to be 109%.
if ; 100% = 150 people
109% = ?
cross multiply to get 163.5 the round off to get 164
3x^2 =15 standard form
Answer:
3x^2 - 15 = 0
-x^2 + 14 = 0
-2x^2 + 4x - 5 = 0
Step-by-step explanation:
3x^2 = 15
3x^2 - 15 = 0
-x^2 = -14
-x^2 + 14 = 0
4x - 2x^2 = 5
-2x^2 + 4x - 5 = 0
Help pls!!!!!Last question I need
Please help me in this question.
Answer:
Step-by-step explanation:
(i) Area of ABCD = (base1+base2)*height/2
= (6+12)*4/2 = 36 cm2
(ii) Volume = Area of ABCD * length = 36 * 25 = 900 cm3
(iii) Total SA = Area of ABCD *2 + 25*5*2 + 6*25 + 12*25
= 72 + 250 + 150 + 300
= 772cm2
A gumball machine contains 7 red, 5 yellow, and 6 orange gumballs. What is the probability that the next gumball that comes out will be either red or yellow?
show work pls tnx!
Answer:
2/3
Step-by-step explanation:
7 red, 5 yellow, and 6 orange =18
P( red or yellow) = number of red or yellow / total
= (5+7)/18
=12/18
=2/3
Which graph shows a solution to the following system?
{ x -y ≥ -1
{ x+y ≤ 0
Answer:
That's the answer attached, whatever answer matches up with it is correct.
Step-by-step explanation:
$900,000 is what percent of $900,000?
Answer:
It is 100 percent.
Step-by-step explanation:
Since the two numbers are identical, it is 100 percent.
What is the x-value that solves the system 4x-y=21 and y=3x-7
Answer:
x=14
Step-by-step explanation:
4x-y=21
y=3x-7
Substitute the second equation in for y in the first
4x - (3x-7) = 21
Distribute the minus sign
4x -3x +7 = 21
x +7 = 21
Subtract 7 from each side
x+7-7=21-7
x=14
Answer: x=14 is right answer
4x-y=21 =
Slope = 4
x-intercept = 21/4 = 5.25000
y-intercept = 21/-1 = -21.00000
y=3x-7 =
Slope = 6.000/2.000 = 3.000
x-intercept = 7/3 = 2.33333
y-intercept = -7/1 = -7.00000
Step-by-step explanation:
Step 1 :
Equation of a Straight Line
Graph of a Straight Line
Calculate the Y-Intercept
Calculate the X-Intercept
Calculate the Slope
Hope this helps.
what is -11=x/9-10? plz helps
Answer:
x=11
Step-by-step explanation:
-11=x/-1
x=-11×-1
x=11
PLEASE HELP!! Due very soon!!! - The graph below represents the height of a football pass, in feet, x seconds after the ball is thrown. Which of the following best describes the interpretation of f(2)? (Attached are the multiple choice answers)
Answer:
The ball is 7 feet above the ground 2 seconds after it is thrown.
Step-by-step explanation:
As per the given statement, we are given a graph of function [tex]f(x)[/tex] where 'x' is time (in seconds) in the current scenario.
Time is plotted on x axis and height of football is plotted on y axis.
[tex]f(x)[/tex] is the height of football according to change in time.
Following are the few things that can be observed from the given curve:
1. Initial Height of football is ~4.8 feet i.e. at 0 seconds of time.
2. Football reaches a maximum height of ~7.2 feet at 1.5 seconds.
3. After 1.5 seconds, the height of football starts decreasing.
Here f(2) means, the height of ball at 2 seconds of time.
It is clearly visible from the given graph that height is 7 feet at 2 seconds.
Please refer to the attached answer image. Height at 2 seconds is marked as point P.
Hence, The ball is 7 feet above the ground 2 seconds after it is thrown.
A rectangular pyramid has a volume of 1.512in, a height of 12 in., and a base length of 21 in. What is the width of its buse?
2 in.
6 in.
12 in
18 in.
Find the range for the following data: 40 , 52 , 48 , 20 , 68 , 100 , 99
Answer:
80
Step-by-step explanation:
The range is the largest number minus the smallest number
100 -20
80
DF bisects angle EDG. Find the value of x
Answer:
x=10
Step-by-step explanation:
2x+6 = 6x-34
-> 40 = 4x
-> 10 =x
A sector with a central angle measure of 4pie/5 (in radians) has a radius of 5cm.
What is the area of the sector?
Answer:10pi cm^2
Step-by-step explanation:
Find the approximate area of /CDE. A. 48.3 square units B. 59.8 square units C. 64.6 square units D. 75 square units
Triangle:
Line CE =15
Line ED =12
Line CD =10
Answer:
B
Step-by-step explanation:
To calculate the area of this triangle we can use the Heron’s formula
Mathematically we have the Heron’s formula as;
A = √s(s-a)(s-b)(s-c)
where s = (a + b + c)/2
Thus, s = (15 + 12+ 10)/2 = 18.5
a = 15, b = 12 and c = 10
Plugging these values into the equation, we have
√18.5(18.5-15)(18.5-12)(18.5-10)
= √18.5(3.5)(6.5)(8.5)
= √ 3,577.4375
A = 59.8116
which is approximately 59.8 square units
Anyone know the answer?
Answer:
A≈18.38
Step-by-step explanation:
Solve for area
Shape: Parallelogram
Formula: Base*Height
5.25*3.5=18.375
Round answer
Hope this helps.
Find the total number of unit cubes that fill the entire prism.
unit cubes
DONE
Answer:
(6 × 3 × 4) 72
Step-by-step explanation:
Answer:
(6x3x4)= 72 unit cubes.
Step-by-step explanation:
what is the sum of the geometric series?
a. 21/2
b. 21/8
c. 21
d. 10
Answer:
A
Step-by-step explanation:
Approximate the real zeros of f(x)= 2x^3 - 4x^2 - 3 to the nearest tenth.
a.2
c.3.2
b.2.3
d.3.3
Please select the best answer from the choices provided
A
B
C
D
Answer:
b.2.3
Step-by-step explanation:
f(x)= 2x^3 - 4x^2 - 3
see graph below
only x intercept is 2.287
Answer:
b2.3
Step-by-step explanation:
please help
the first right answer will DEFFO be marked as the best answer!
its 15 points!!!
Answer:
P(red) = .3
P(yellow) = .3
75 cubes in the box
Step-by-step explanation:
The probability has to add to 1
Since the number of red cubes equals the number of yellow cubes the probability has to be the same
.4 + x+x = 1
.4 +2x = 1
2x = 1-.4
2x = .6
Divide by 2
x = .6/2
x = .3
P(red) = .3
P(yellow) = .3
We know that
P(blue) = .4 = number of blue cubes/ total number of cubes
.4 = 30/total
total = 30/.4
total = 75
Diana works at a clothing store. She sold 1/3 of the total shirts on Tuesday and 5/12of the total number of blue shirts on Wednesday. What fraction of blue shirts did she sell on Tuesday and Wednesday?
Answer:
The fraction of blue shirts that she sold is [tex]\frac{3}{4}[/tex]
Step-by-step explanation:
She sold:
1/3 on Tuesday.
5/12 on Wednesday.
What fraction of blue shirts did she sell on Tuesday and Wednesday?
Sum of fractions.
The lesser common multiplier between 3 and 12, which is 12.
So
[tex]\frac{1}{3} + \frac{5}{12} = \frac{\frac{12*1}{3} + \frac{12*5}{12}}{12} = \frac{4 + 5}{12} = \frac{9}{12} = \frac{3}{4}[/tex]
The fraction of blue shirts that she sold is [tex]\frac{3}{4}[/tex]
What is the area of the circle below, the circle has a radius 20.5 ft.
84 feet
92 feet
O 1319.59 ftsq
659.79 ftsa
O 128.74
O none
Answer:
It is approximately 1320.25
a Fair coin is tossed 4 times. What is the probability of not getting all heads?
Answer:
15/16
Step-by-step explanation:
The probability of not getting all heads is
1 - P(all heads)
P (all heads) =P(heads) * P(heads)* P(heads) * P(heads)
1/2* 1/2 * 1/2 * 1/2 = 1/16
1 - 1//16 = 15/16
hurry please
What is the value of 12 Superscript 0?
Answer:
the answer is 1
Step-by-step explanation:
anything to the 0th power is 1
Answer:
The answer you are looking for is 1
Step-by-step explanation:
Any number raised to the power of one equals the number itself. Any number raised to the power of zero, except zero, equals one. This multiplication rule tells us that we can simply add the exponents when multiplying two powers with the same base.
Please tell me if it is correct using the ratings or thanks
The mean age of 5 people in a room is 25 years.
A person enters the room.
The mean age is now 27.
What is the age of the person who entered the room?
Answer:
37 years
Step-by-step explanation:
If the mean age of 5 people in that room was 25 years,
∴ Sum₍₅₎= (25×5)years
= 125 years
When a person enters that room, the mean age was now 27.
∴ Sum₍₆₎=(27×6) years
= 162 years
∴ The age of the person who entered the room = Sum₍₆₎ - Sum₍₅₎
= (162-125) years
= 37 years
∴ The age of the person who entered the room is 37 years.
Hope this helps!!!
Please mark as brainliest!!!
Answer:
im just answering so you can give the other person brainilest. you can report if ya want.
Step-by-step explanation:
:)
Wegnerkolmp2741o Plz answer
The best shooters in the NBA make about 90% of their free throws (shots from the line). If a player took 20 shots, what number of those shots would you expect to go in?
Answer:
18 shots
Step-by-step explanation:
By criss cross method
100% -> 20 shots
90% - >?
[tex]answer = \frac{90 \times 20}{100} = 18[/tex]
Hope this helps...
Answer:
18
Step-by-step explanation:
Take the number of shots times the probability that they will go int
20 * 90%
Change to decimal form
20 *.90
18
18 of the shots would be expected to go in