Decide whether a discrete or continuous random variable is the best model for each of the following variables:
a. The time for a computer algorithm to assign an image to a category.
b. The number of bytes used to store a file in a computer.
c. The ozone concentration in micrograms per cubic meter.
d. The ejection fraction (volumetric fraction of blood pumped from a heart ventricle with each beat).
e. The fluid flow rate in liters per minute.
Answer:
a) Continuous
b) Discrete
c) Continuous
d) Continuous
e) Continuous
Step-by-step explanation:
Discrete variable:
Countable amounts(0, 1, 2, 3,...)
Continuous variables:
Can be decimal values.
a. The time for a computer algorithm to assign an image to a category.
Time can have decimal values, so continuous
b. The number of bytes used to store a file in a computer.
The number of bytes is never decimal, so discrete
c. The ozone concentration in micrograms per cubic meter.
Can be decimal value, so continuous
d. The ejection fraction (volumetric fraction of blood pumped from a heart ventricle with each beat).
Can be decimal value, so continuous
e. The fluid flow rate in liters per minute.
Can be decimal value, so continuous
PLEASE PLEASE HELP!!!
Answer:
398,765 books were sold
Step-by-step explanation:
How to get the answer:
1) Identify the given
32,300 is percentage
8.1 % is rate
base (b) is missing
2) Solve
b= p/r
b= 32,300 / 8.1% or 0.081
b= 398,765
3) Check
398,765 x 8.1% = 32,299.97 or 32,300
How do you covert 40% into a fraction ?
Answer:
2/5
Step-by-step explanation:
If y = 24 when x = 6, find y when x = -4 answer
Answer:
-16
Step-by-step explanation:
24/6 = y/-4
6y = -96 cross multiply
y=-16
please help i’ll mark u
Answer:
4:12
4/12
4 to 12
In a first-aid kit the ratio of large bandages to
small bandages is 5 to 3. Based on this ratio,
how many large bandages are in the kit if there
are a total of 80 bandages?
A. 50
B. 48
C. 16
D. 40
Find the degree measure of the indicated angle.
?
40°
80°
Answer:
60
because you need to add the number to get 180 so I would be 80+20 = 120+60=180 I hope it helps!
1. A recipe for 6servings of Lasagna uses 16 ounces of Italian Sausage.
a. If the recipe were to be made for 15 servings, how many ounces of Italian Sausage would be needed?
b. How many servings of Lasagna can be made with 24 ounces of Italian Sausage?
Answer:
a) 40 oz
b) 64 oz
Step-by-step explanation:
a) you can use the ratio of 6/16 = 15/x and cross-multiply
b) you can use the ratio of 6/16 = 24/x and cross-multiply
Simplify the expression below.
5(7x+4y+1)+2(8x+3y+6)
help plz!
Answer:
51x+26y+17
Step-by-step explanation:
Answer:
51x + 26y + 17
Step-by-step explanation:
distribute
5(7x) + 5(4y) + 5(1) + 2(8x) + 2(3y) + 2(6)
35x + 20y + 5 + 16x + 6y + 12
51x + 26y + 17
plz help me. I'm confused on hw
Build me a 100ft roller coaster ride using math?
How do I find the volume of this pyramid
Answer:
10*10*12 = 120 ÷ 3 = 40
Step-by-step explanation:
The formula to find a pyramid's volume is
V = [tex]\frac{l*w*h}{3}[/tex] (length 'times' width 'times' height, divided by 3)
can anyone pls help me with this question I'm stuck
Answer:
I think 24
let b=3
l=4
and h=2
Answer:
864
Good luck!
hayden and jamie completed 20 math problems together, jamie completed 2 more than twice the number that hayden completed. Let p represent the number of math problems hayden completed. Write an equation that can be used to find the number of math problems that jamie completed.
Answer:
2p+2+p = 20
Step-by-step explanation:
Let p represent the number of Math problems Hayden completed.
Let 2p+2 represent the number of Math problems Jamie completed.
Next, we have to add them together so that the total Math problems they completed will be equal to 20.
Let's solve.
2p+2+p = 203p+2 = 203p = 20-23p = 18p = [tex]\frac{18}{3}[/tex]p = 6Therefore, Hayden completed 6 Math problems.
Next, we have to get how many problems Jamie completed.
Let's solve.
2p+2 = ?2(6)+2 = ?12+2 = ?14Therefore, Jamie completed 14 Math problems.
Let's check.
2p+2+p = 2014+6 = 2020 = 20It's correct!
A family goes to a restaurant. When the bill comes, this is printed at the bottom of it:
Gratuity Guide showing 15%=4.89, 18%=5.87, and 20%=6.52
How much was the price of the meal?
Someone help I need the answer immediately.
Fill in the missing statements and reasons in the proof:
Answer:
2. definition of congruence
Step-by-step explanation:
sorry I just know that one
What best describes the expression y over 4? (5 points)
a. Some number divided by 4
b. Some numbers times 4
c. 4 more than some number
d. 4 less than some number
I prefer you 100% know the answer and not “think” this is very important!!
Answer:
a
Step-by-step explanation:
3(2x - 1) + 7 = -44 solve for x
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
answer is x =-8
hope that helps^^
In Dylan's grade, there are 80 students. Currently, 40% of them are enrolled in health. How many students are enrolled in health?
Answer:
32
Step-by-step explanation:
Convert 40 percent to a decimal, which is 0.4, then multiply 0.4 with 80 and you get 32.
The graph below represents a function.
what are the rate of change and the initial value of the function represented by the graph
A.the rate of change is 3 and the initial value is 5
B.the rate of change is 1/3 and the initial value is 5
C.the rate of change is 5 and the initial value is 3
D.the rate of change is 5 and the initial value is 1/3
Answer:
B
Step-by-step explanation:
Let C be the first quadrant portion of the circle of radius 3 centered on the origin. Find the line itegral for x^2+y^2 over C.
Four friends go to dinner. Each chooses a different meal. When the check comes, they decide they will each pay the same amount. If the costs of the meals (including tax and tip) were $12.20, $11.00, $8.50, and $7.50, what should each friend pay so they cover the whole bill?
Answer: Each friend should pay $9.80
Step-by-step explanation: First add up all their checks, then divide them by 4 (4 because there 4 friends) to get the amount each friend needs to pay.
$12.20 + $11.00 + $8.50 + $7.50= $39.20
39.30 / 4 = $9.80
8 (3x-6) = 6(4x + 8)
Answer:
There is no solution to make it true.
Step-by-step explanation:
Can someone help me with these 2 questions please???
Answer:
See step-by-step explanation.
Step-by-step explanation:
For the first question, you simply put an EMPTY circle above 2 and draw an arrow from it all the way down to -3. The reason why we put an empty circle is because there is no equal sign below it.
For the second question, you put a FILLED circle above 4 and draw an arrow from it all the way down to -3. The reason why we use a filled circle is because x is less than OR equal to 4.
how can you find the area of a circle? give me a good explanation please, ty!
Answer:
The area of a circle is pi times the radius squared (Area = pi radius²).
Step-by-step explanation:
The circumference of a circle is the linear distance of a circle's edge. It is the same as the perimeter of a geometric figure, but the term 'perimeter' is used exclusively for polygons.
The following equation describes the relation between the circumference and the radius R of a circle:
C = 2πR
Where π is a constant approximately equal to 3.14159265..
How to find the circumference of a circle
Determine the radius of a circle. Let's assume it's equal to 14 cm.
Substitute this value to the formula for circumference: C = 2 * π * R = 2 * π * 14 = 87.9646 cm.
You can also use it to find the area of a circle: A = π * R² = π * 14² = 615.752 cm².
Finally, you can find the diameter - it is simply double the radius: D = 2 * R = 2 * 14 = 28 cm.
Use our circumference calculator to find the radius when you only have the circumference or area of a circle.
Answer:
Use this formula: A = π r²
Step-by-step explanation:
A = π r²
What does A = π r² mean? :
(Area = Pi x Radius²)
π = Pi (3.14)
² = squared
Hope this helps! :)
Please help with my question
Answer:
[tex]5\frac{5}{6}[/tex]
Step-by-step explanation:
The problem above requires the use of mathematical operation with mixed fractions. In order to do this, you have to convert the mixed fractions into improper fractions first.
Let's convert.
[tex]3\frac{1}{2}[/tex] = [tex]\frac{7}{2}[/tex][tex]1\frac{2}{3}[/tex] = [tex]\frac{5}{3}[/tex]Next, you have to multiply the fractions by multiplying the numerators with each other and the denominators with each other.
Let's solve.
[tex]\frac{7}{2}[/tex] x [tex]\frac{5}{3}[/tex] = [tex]\frac{35}{6}[/tex]Since [tex]\frac{35}{6}[/tex] is an improper fraction and the choices above are mixed fractions, you have to convert it.
Let's convert.
[tex]\frac{35}{6}[/tex] = [tex]5\frac{5}{6}[/tex]Therefore, the answer is [tex]5\frac{5}{6}[/tex]
The tide is the regular rising or falling of the ocean’s surface. This is due in large part to the gravitational forces of the moon. The following table represents water level of the tide off the coast of Kings Point, N.Y., for a 24 hour period, February 9th through February 10th of 2009.
Hour
Measurement in feet above the average low tide
0
-0.98
2
5.83
4
7.78
6
7.34
8
2.33
10
-0.47
12
-0.21
14
5.32
16
8.83
18
8.31
20
3.80
22
-0.28
24
0.53
Plot the data points given in the table using hour as the independent variable. Does this data indicate that a sine regression may be appropriate in this case? Explain.
a.
Yes, in the scatterplot the wavelike behavior is apparent although not precise.
b.
Yes, the scatterplot shows an increase over time.
c.
No, there is no correlation between the points.
d.
No, the scatterplot depicts a hyperbole.
Answer:
Option AStep-by-step explanation:
Points plotted.
See the graph attached.
Correct choice is:
A. Yes, in the scatterplot the wavelike behavior is apparent although not preciseOPTION A
#CcarryOnLearning
Graph the line that passes through the points (-4, 6) and (-8,5) and determine the equation of the line.
Plz guys help I need help
A triangle has two sides that measure 5 cm and 7 cm. Which of the following CANNOT be the measure of the third side? A 3 cm B 5 cm C 7 cm D 12cm
Answer:
D
Step-by-step explanation:
Saying the number of |`s is the number side and |<|||>|| then for a triangle i can say |+||>|||