Jill is swimming laps in a pool. The table shows how the total distance she swims depends on the number of laps she does.
Number of Laps - Total Distance (Meters)
5 250
10 500
15 ?
20 1,000
25 1,250
A. 50
B. 75
C. 550
D. 750
Answer:
the expression b/c=b/c is an example of a/an
please help me with this question:(
A y= 2x - 10
B y= 1/2 x + 10
C y= 1/2x -10
D y= 2x + 10
9514 1404 393
Answer:
D. y= 2x + 10
Step-by-step explanation:
Try x=3 in the equations and see which one works.
A: 2·3 -10 = -6 ≠ 16
B: 1/2(3) +10 = 11.5 ≠ 16
C: 1/2(3) -10 = -8.5 ≠ 16
D: 2(3) +10 = 16 . . . . . . this equation works
PLS HELP ME GIVING OUT BRAINLIEST ANSWER!!
Answer:
4r^2
Step-by-step explanation:
The area of a square is the square of the side length. Since a circle with radius r is inscribed inside the square, the side length of the square is 2r. Therefore, the area of the square is (2r)^2, which is 4r^2.
Note that the area of the circle is [tex]\pi r^2[/tex].
6)
Simplify
12
A)
B
5
BV
D
BV
Answer:
"The square root of 12 is represented in the radical form as √12, which is equal to 2√3. Since 2√3 cannot be further simplified, hence such roots are called surds"
Step-by-step explanation: I just looked it up-
Help pls will give brainlist make sure to show work if needed
Answer:
11
Step-by-step explanation:
Just make your dot plot so that the amount of dots corresponding to the number is the amount of times the number shows in the box. :)
Write a thesis statement for your argument aginst online learning
Answer:
Step-by-step explanation:
Online Learning is bad because it can cause social Isolation, it requires strong self-motivation and time management skills , Lack of communication skill development in online students and cheating prevention during online assessments is very complicated.
derivative of
[tex] \frac{ {3x}^{2} - 2x - 1 }{ {x}^{2} } [/tex]
Show a step.
Answer:
[tex] \displaystyle \frac{dy}{dx} = \frac{2x + 2}{x^3} [/tex]
Step-by-step explanation:
we would like to figure out the derivative of the following:
[tex] \displaystyle \frac{ { 3x }^{2} - 2x - 1 }{ {x}^{2} } [/tex]
to do so, let,
[tex] \displaystyle y = \frac{ { 3x }^{2} - 2x - 1 }{ {x}^{2} } [/tex]
By simplifying we acquire:
[tex] \displaystyle y = 3 - \frac{2}{x} - \frac{1}{ {x}^{2} } [/tex]
use law of exponent which yields:
[tex] \displaystyle y = 3 - 2 {x}^{ - 1} - { {x}^{ - 2} } [/tex]
take derivative in both sides:
[tex] \displaystyle \frac{dy}{dx} = \frac{d}{dx} (3 - 2 {x}^{ - 1} - { {x}^{ - 2} } )[/tex]
use sum derivation rule which yields:
[tex] \rm\displaystyle \frac{dy}{dx} = \frac{d}{dx} 3 - \frac{d}{dx} 2 {x}^{ - 1} - \frac{d}{dx} {x}^{ - 2} [/tex]
By constant derivation we acquire:
[tex] \rm\displaystyle \frac{dy}{dx} = 0 - \frac{d}{dx} 2 {x}^{ - 1} - \frac{d}{dx} {x}^{ - 2} [/tex]
use exponent rule of derivation which yields:
[tex] \rm\displaystyle \frac{dy}{dx} = 0 - ( - 2 {x}^{ - 1 -1} ) - ( - 2 {x}^{ - 2 - 1} )[/tex]
simplify exponent:
[tex] \rm\displaystyle \frac{dy}{dx} = 0 - ( - 2 {x}^{ -2} ) - ( - 2 {x}^{ - 3} )[/tex]
two negatives make positive so,
[tex] \displaystyle \frac{dy}{dx} = 2 {x}^{ -2} + 2 {x}^{ - 3} [/tex]
further simplification if needed:by law of exponent we acquire:
[tex] \displaystyle \frac{dy}{dx} = \frac{2 }{x^2}+ \frac{2}{x^3} [/tex]
simplify addition:
[tex] \displaystyle \frac{dy}{dx} = \frac{2x + 2}{x^3} [/tex]
and we are done!
A culture of the bacterium Salmonella enteritidis initially contains 50 cells. When introduced into a nutrient broth, the culture grows at a rate proportional to its size. After 1.5 hours, the population has increased to 775. (a) Find an expression for the number of bacteria after t hours. (Round your numeric values to four decimal places.)
Answer:
The expression for the number of bacteria after t hours is [tex]P(t) = 50e^{0.2922t}[/tex]
Step-by-step explanation:
When introduced into a nutrient broth, the culture grows at a rate proportional to its size.
This means that the size of the population, after t hours, is modeled by the following differential equation:
[tex]\frac{dP}{dt} = rP[/tex]
In which R is the growth rate.
The solution of this differential equation is:
[tex]P(t) = P(0)e^{rt}[/tex]
In which P(0) is the initial population.
A culture of the bacterium Salmonella enteritidis initially contains 50 cells.
This means that [tex]P(0) = 50[/tex], and so:
[tex]P(t) = P(0)e^{rt}[/tex]
[tex]P(t) = 50e^{rt}[/tex]
After 1.5 hours, the population has increased to 775.
This means that [tex]P(1.5) = 775[/tex]. We use this to find r. So
[tex]P(t) = P(0)e^{rt}[/tex]
[tex]500e^{1.5r} = 775[/tex]
[tex]e^{1.5r} = \frac{775}{500}[/tex]
[tex]\ln{e^{1.5r}} = \ln{\frac{775}{500}}[/tex]
[tex]1.5r = \ln{\frac{775}{500}}[/tex]
[tex]r = \frac{\ln{\frac{775}{500}}}{1.5}[/tex]
[tex]r = 0.2922[/tex]
The expression is:
[tex]P(t) = 50e^{rt}[/tex]
[tex]P(t) = 50e^{0.2922t}[/tex]
The expression for the number of bacteria after t hours is [tex]P(t) = 50e^{0.2922t}[/tex]
:) please help me. Thank you
Answer:
it's the 3rd one
Step-by-step explanation:
i used m ath way
II. The Añejo Rum 45 played 5 games. Find the total of poin
basketteall game and for each player,
Loyzaga J
WAME GAME 1 GAME 2
Jaworski 18
2B
12 15
Isaac 16
12
Gonzalgo 21 15
Distrito 26 24
Mamaril 19 22
GAME 3
12
16
18
24
20.
12
GAME H GAME 5
24
18
16
20
19 15
26 23
21
15 16
21
Answer:
Step-by-step explanation:
alright l like this answer too
Rationalize the denominator and simplify
Find the radius of the curcle
Answer:
radius=diameter/2
=9/2
=4.5 in.
diameter=radius*2
=3m*2
=6m
Step-by-step explanation:
Step-by-step explanation:
1) r=d/2
r=9in/2
r=4.5in
2) d= r×2
d=3m×2
d=6m
Two sixth-grade classes, A and B, voted on whether
to give the answers to their math problems in poetry.
The "yes" choice was more popular in both classes.
class A - 24 yes , 16 no
class B 18 yes , 9 no
i know the percent of class a but not b
class A - 60/100
class B - ???????
Review the graph of a piecewise function. On a coordinate plane, a line starts at open circle (0, negative 1) and goes to open circle (negative 2, negative 3). It then curves up through (negative 5, 2). A curve starts at closed circle (0, 3) and curves down and approaches x = 1 into quadrant 4. Another curve starts at closed circle (2, 3) and curves down and approaches x = 1 in quadrant 4. A horizontal line goes from closed circle (2, 3) to (5, 3). Which list represents all values of x for which the function has a discontinuity? 1 0 and 1 –2 and 1 –2, 0, and 1
Answer:
A
Step-by-step explanation:
It is
Answer:
a
Step-by-step explanation:
I’ll
Give Brainlest
Write 1.28:3.12 as a whole number ratio in it's simplest from.
Answer: 1.28 : 3.12 = 16 : 39
Step-by-step explanation: now let me sleep
HELP NEEDED PLEASE!! WILL GIVE BRAINIEST
Find the mean absolute deviation of the following numbers:
12, 15, 17, 18, 15, 20, 22
Answer:
12 20 22
Step-by-step explanation:
what is and application that process data into meaningful information is
Answer:
Data processing is a process of converting raw facts or data into a meaningful information. Data can be done manually using a pen and paper, mechanically using simple devices eg. typewritter or electronically using modern dat processing toolseg computers.
Step-by-step explanation:
A finite sequence of numbers is called AWESOME if each subsequent member of the sequence, except the first one, is larger than the previous one and if the
product of all the members of that sequence is a perfect square. For example, sequence 2, 6, 27 is an AWESOME sequence. Determine the natural numbers x and y such that the sequence 28, x, y, 65 is an AWESOME sequence.
Answer:
The answer is "28, 35, 52, 65"
Step-by-step explanation:
Calculating the x,y:
[tex]\to x< y<65\\\\\to 65 \times 28 xy=13 \times 5xy \times 7 \times 2^2\\\\x=13 \\\\y=5 \times 7= 35\\\\[/tex]
When
or
[tex]x=35\\\\y= 13 \times 2^2=13 \times 4 =52[/tex]
So, the final answer is "28, 35, 52, 65".
NEED HELP A family traveling home after a reunion Records the time in hours and the distance they are from home in miles based on the scatter plot the family is miles from home after the first 3.5 hours
Answer:
200 miles
Step-by-step explanation:
BE QUICK GIVING BRAINIEST
A cylinder with a diameter of 24 inches and a height of 8 inches has the same volume as a cone with a diameter of 12 inches.
What is the height of the cone?
A. 4 Inches
B. 16 inches
C. 48 inches
D. 96 Inches
Answer:
D. 96 inches.
Step-by-step explanation:
Radius of cylinder = 1/2 * 24 = 12 inches.
Radius of the cone = 1/2 * 12 = 6 inches.
Volume of the cylinder = pi r^2 h and volume of the cone = 1/3 pi r^2 h
So pi 12^2 * 8 = 1/3 pi * 6^2 * h
1152 pi = 12 pi h
h = 1152/12
h = 96 inches.
Yesterday, Fairlane got 1 1/2 inches of rain. It got 3/4 of that rain before 3:00 P.M. How much rain did Fairlane get before 3:00 P.M.
Answer:
3/4
Step-by-step explanation:
1 1/2
3/2 make this 6/4 so you can have a common denominator
3/4
Then you subtract and boom 3/4 it also says in the problem lol
Please help me this is for a test. Thank you so much whoever answers this.
Answer: Pretty sure the answer is 3.
Step-by-step explanation:
[tex]\frac{2(4+7)-7}{5}[/tex]
[tex]\frac{2(11)-7}{5}[/tex]
[tex]\frac{22-7}{5}[/tex]
[tex]\frac{15}{5}[/tex]
Under her cell phone plan, Aubree pays a flat cost of $50.50 per month and $4 per gigabyte. She wants to keep her bill at $56.10 per month. Write and solve an equation which can be used to determine gg, the number of gigabytes of data Aubree can use while staying within her budget.
Equation:
Answer: gg =
Answer:
4.4 gibrayets should be it
2 - (4 - 3) and (2 – 4) - 3 what property is it?
Answer:
1 and -2
Step-by-step explanation:
Answer:
Associative property
Step-by-step explanation:
When three or more numbers are multiplied, the answer is the same regardless of the way in which the numbers are grouped.
Help me please I will give brainleist
Answer:
? = 7x
Step-by-step explanation:
Lets simplify the equation first;
5x - 20 + ? = -20 + 12x
=> So now, we have to make the equation on the left equation congruent to the right equation:
It we already have -20 common on both sides, but we need to find out, what added by 5x gives us 12x,
=> So we can let the number we have to find out be y, and say:
5x + y = 12x
=> y = 12x - 5x
=> y = 7x
Therefore, ? = 7x
Hope this helps!
The boat top speed was 2 miles per hour less then 3/5 the cars top speed. The boats top speed was 73 miles per hour.what was the top speed of the car ?
Answer:
Word Problem. Hmm
The Interpretation of the first expression
Let boat top speed be x and car's top speed be y
x= 3y/5 – 2
From the question
x= 73miles per hr
73= 3y/5 - 2
3y/5 = 73+2
3y/5=75
y= 75x5/(3)
y=125miles per hr.
This is the car's top speed. Thanks
Yoonie is a personnel manager in a large corporation. Each month she must review 16 of the employees. From past experience, she has found that the reviews take her approximately four hours each to do with a population standard deviation of 1.2 hours. Let Χ be the random variable representing the time it takes her to complete one review.Assume Χ is normally distributed.Let be the random variable representing the mean time to complete the 16 reviews. Assume that the 16 reviews represent a random set of reviews.
A. Find the probability that the mean of a month’s reviews will take Yoonie from 3.5 to 4.25 hrs. Sketch the graph, labeling
and scaling the horizontal axis. Shade the region corresponding to the probability.
b. P(________________) = _______
C. Find the 95th percentile for the mean time to complete one month's reviews. Sketch the graph.
D. The 95th Percentile =____________
Answer: i think it would be 20
Step-by-step explanation:
if you do the problem it should show you
6(3b-5) b=5
is the value 60
Answer:
Yes
Step-by-step explanation:
6((3×5)-5)
6(15-5)
6(10)
60
Hope this helps!! :)
A box holds 30 tins How many boxes can be filled
with 810 tins