Answer:
88.8 cm square
Step-by-step explanation:
make b the subject of p=1/2ab^2+c
The variable b as the subject of the formula is b = √2(p -c)/a
What are expressions?Expressions are mathematical statements that are represented by variables, coefficients and operators
How to make b the subject of the equation?The equation is given as
p = 1/2ab^2 + c
Subtract c from both sides of the equation
So, we have
1/2ab^2 = p - c
Multiply through by 2
ab^2 = 2(p -c)
Divide by a
b^2 = 2(p -c)/a
Take the square root of both sides
b = √2(p -c)/a
Hence, b as the subject of the formula is b = √2(p -c)/a
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a jar contains some marbles that are either white or red. the ratio of the number of white marbles to the number of red numbers is 2 : 3. What might be the total of white and red marvle in the jar?
Answer:
52 marbles i think
Step-by-step explanation:
Maggie runs 1/4 of a mile in 1.3 minutes. Olivia runs 2/3 of a mile in 2.9 minutes. Who runs faster? How much faster per hour does the person run?
Answer:
Olivia-2.25
Step-by-step explanation:
Olivia runs faster than Maggie.
Olivia runs 2.22 miles/hour faster than Maggie.
What is speed?Speed is the ratio of the given distance and time.
It shows how fast an object is moving at a given time.
The formula is Distance / Time.
We can find the distance or time when the required values are given using this formula.
We have,
To compare the speeds of Maggie and Olivia, we can calculate their respective rates using the formula:
rate = distance/time
For Maggie:
distance = 1/4 mile
time = 1.3 minutes
rate = (1/4) / 1.3 = 0.1923 miles/minute
For Olivia:
distance = 2/3 mile
time = 2.9 minutes
rate = (2/3) / 2.9 = 0.2293 miles/minute
Therefore, Olivia runs faster than Maggie.
To find out how much faster Olivia runs per hour, we can convert her rate to miles per hour:
0.2293 miles/minute x 60 minutes/hour x 60 seconds/minute
= 13.758 miles/hour
Similarly, we can convert Maggie's rate to miles per hour:
0.1923 miles/minute x 60 minutes/hour x 60 seconds/minute
= 11.538 miles/hour
The difference in their speeds is:
13.758 - 11.538
= 2.22 miles/hour
So,
Olivia runs 2.22 miles/hour faster than Maggie.
Thus,
Olivia runs faster than Maggie.
Olivia runs 2.22 miles/hour faster than Maggie.
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Find the 15th term: 1/2, 1/4, 0, -1/4,...
Step-by-step explanation:
a(n) = a +(n-1)d
d=1/4 -1/2 =-1/4
°.° a(15) = 1/2 +(15–1) -1/4
a(15) = 1/2 -3.5
=-3
hope it will help
(GIVING BRAINLIEST!!!)
Answer:
5
Step-by-step explanation:
5/30 = 1/6
A store ordered 124 2 liters of coke how many liters are there.
Answer:
248
Step-by-step explanation:
2x124
if i get off my online classes at 11:11 and get back on at 12:26 how much free time do i have?
Answer:
1 hr and 45 mins
Step-by-step explanation:
12:26-11:11 or 115, so an hour and 45 mins.
Hope this helps :D
Answer:
75 min
Step-by-step explanation:
I did 49+26 because from 11:11 to 12 theres 49 min and from 12 to 12:26 theres 26 min
Are you able to help me with my summer school work?
Answer:
yes, but the assignment is not here
the cost of 15 lessons?
Answer:
$150
Step-by-step explanation:
shown on graph when graphed out
a car manufacturer is looking to compare the sales of their sedan model last year to the sales of the same model 15 years ago at various dealerships. the manufacturer is weighing two different proposals to conduct the study. under the first proposal, the manufacturer randomly samples 10 different dealerships for their sales numbers last year and randomly selects another 10 dealerships for their sales numbers 15 years ago. in the second proposal, the manufacturer randomly samples 10 dealerships for both sets of sales numbers. are the samples in these proposals dependent or independent?
The samples in the first proposal are independent, while the samples in the second proposal are dependent.
In the first proposal, where the manufacturer randomly samples 10 different dealerships for each set of sales numbers (last year and 15 years ago), the samples are independent. This is because the selection of dealerships for one set of sales numbers does not affect or influence the selection of dealerships for the other set of sales numbers. Each dealership is chosen randomly and independently for each set.
On the other hand, in the second proposal, where the manufacturer randomly samples 10 dealerships for both sets of sales numbers, the samples are dependent. This is because the selection of dealerships for one set of sales numbers is directly tied to the selection of dealerships for the other set of sales numbers. The same 10 dealerships are chosen for both sets, so the samples are not independent.
The choice between independent and dependent samples can have implications for statistical analysis. Independent samples allow for direct comparisons between the two sets of sales numbers, while dependent samples may introduce potential bias or confounding factors due to the shared dealership selection.
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3) Jason's mother asked him to buy some vitamins at the store. There were two different
sizes of vitamin bottles, and Jason was not sure which one to buy. The bottle with 250
10 10 tablets cost $8.25. The bottle with 100 tablets cost $4.00. Jason used proportions to
make his decision.
Which bottle is the better buy?
A. the bottle with 250 tablets
B. the bottle with 100 tablets
C. both bottles work out the same
Please help due tonight
Answer:
7, 10
Step-by-step explanation:
X - 1 is greater than or equal to 6
+1. +1
x is greater than or equal to 7.
7 can work as
7 - 1 is greater than or equal to 6
6 is greater than or equal to 6
10 also works because if you put it in the equation the answer is still more than 6.
Help me please please
(3a + 18c) ÷ b²??HELP
Answer:
\( 3\bigg( \dfrac{a}{b^2}+\dfrac{6c}{b^2}\bigg) \)
Step-by-step explanation:
Here we have ,
\(\sf\longrightarrow \dfrac{3a+18c}{b^2} \)
This can be written as ,
\(\sf\longrightarrow \dfrac{3a}{b^2}+\dfrac{18c}{b^2} \)
You can take out 3 as common,
\(\sf\longrightarrow 3\bigg( \dfrac{a}{b^2}+\dfrac{6c}{b^2}\bigg) \)
We can't simplify this any further. Hope this helps!
A fifteen passenger van is rented for a family vacation. The van rental is $75.00 per day, plus a $160.00 insurance fee. Which equation could be used to find x, the number of days the car be rented if they want to spend exactly $760.00 on the van rental?
Answer:
Step-by-step explanation:
You are right it is 8!
8. A cylinder and cone have the same volume. The cylinder has a height of 2 22 inches and a diameter of 10 inches. The cone has a diameter of 20 inches. What is the height of the cone?" 5.5 inches O 12.5 inches O 16.5 inches 22 inches.
Answer:
cylinder? Radius × Radius × Height × Pi ... You have a cylinder with a 5 inch diameter and it's 6 inches high. ... (5 Inch Diameter Divided by 2) = 2.5 Inch Radius
What’s the answer to 0.462 / 0.2
Answer: 2.31
Step-by-step explanation: 0.462 divided by 0.2 is 2.31. I knew it was going to be over 2 because 0.2 times 2 is 0.4.
Answer:
2.31
Step-by-step explanation:
0.2 goes into 0. 2 times. First part of answer: 2
0.2 goes into 0.06 3 times. second of answer: 3
0.2 goes into 0.002 one time. Third part of answer: 1
Answer: 0.231.
Now we need to move the decimal 4 places to the left and we get 2.31
HOPE THIS HELPS YOU!! :)
Plz mark brainliest if you want to! :)
Roll a fair die three times. What is the probability that it is 1 or 2 on the first roll, 3 or 4 on the second roll, or 5 or 6 on the third roll?
The probability that it is 1 or 2 on the first roll, 3 or 4 on the second roll, or 5 or 6 on the third roll when a fair die is rolled three times is 1/4.
Probability is the study of random events. It is a measure of the likelihood of an event occurring. Probability can be expressed as a decimal, a fraction, or a percentage. There are two types of probability - empirical probability and theoretical probability.
Empirical probability is calculated by conducting experiments or collecting data. It is calculated using the following formula:
Empirical probability = Number of favourable outcomes/Total number of outcomes
Theoretical probability is calculated using probability formulas. It is calculated using the following formula:
Theoretical probability = Number of favourable outcomes/Total number of possible outcomes
In the given problem, a fair die is rolled three times. We need to find the probability that it is 1 or 2 on the first roll, 3 or 4 on the second roll, or 5 or 6 on the third roll. There are 2 favourable outcomes for the first roll, 2 favourable outcomes for the second roll, and 2 favourable outcomes for the third roll.
Total number of outcomes = 6×6×6 = 216
Number of favourable outcomes = 2×2×2 = 8
Probability = Number of favourable outcomes/Total number of outcomes
Probability = 8/216
Probability = 1/27
Therefore, the probability that it is 1 or 2 on the first roll, 3 or 4 on the second roll, or 5 or 6 on the third roll when a fair die is rolled three times is 1/4.
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PLS HELP ME AND MY TEACHER ARE ON A 1 ON 1 CALL HELP ASAP
Answer:
I'm confused because...
Step-by-step explanation:
The area of the triangle is 117.
So the surface area of the pyramid is 701.168.
A landlord rents out apartments for $900 per unit and has all 50 rented. For every time he raises the price by $25 he loses one unit. Any rented units also cost $75 a month in repairs. Create a function to represent the ratio of revenue to cost. a) Analyze the function represented by the problem using the first and second derivatives to find local extrema points and points of inflection. b) Do interval tests with each derivative to find intervals of increase and decrease and intervals of concavity. c) If the function is rational, find any asymptotes. d) Sketch a graph of the function, the first derivative, and the second derivative on large paper (use different colours for each function).
The ratio of revenue to cost is given by: \(\[\frac{R(x)}{C(x)} = \frac{(900 + 25x)x}{900x + 75(50 - x)}\]\). The second
derivative expression, we get: \(\[\frac{d^2}{dx^2}\left(\frac{R(x)}{C(x)}\right) = \frac{875}{(900x + 75(50 - x))^2}\]\) and this
equation will give us the potential vertical asymptotes.
a) To represent the ratio of revenue to cost, let's start by defining the function \(\(f(x)\)\) as the revenue generated by renting \(\(x\)\) units. The cost function \(\(C(x)\)\) can be expressed as:
\(\[C(x) = 900x + 75(50 - x)\]\)
The revenue function \(\(R(x)\)\) is the product of the number of rented units \(\(x\)\) and the price per unit:
\(\[R(x) = (900 + 25x)(x)\]\)
The ratio of revenue to cost is given by:
\(\[\frac{R(x)}{C(x)} = \frac{(900 + 25x)x}{900x + 75(50 - x)}\]\)
b) To find the intervals of increase and decrease and the intervals of concavity, we need to analyze the first and second derivatives.
First, let's find the first derivative \(\(\frac{d}{dx}\left(\frac{R(x)}{C(x)}\right)\)\) using the quotient rule:
\(\[\frac{d}{dx}\left(\frac{R(x)}{C(x)}\right) = \frac{(900 + 25x)\frac{d}{dx}(x) - x\frac{d}{dx}(900 + 25x)}{(900x + 75(50 - x))^2}\]\)
Simplifying the derivative expression, we have:
\(\[\frac{d}{dx}\left(\frac{R(x)}{C(x)}\right) = \frac{875x - 1800}{(900x + 75(50 - x))^2}\]\)
Now, let's find the second derivative \(\(\frac{d^2}{dx^2}\left(\frac{R(x)}{C(x)}\right)\):\)
\(\[\frac{d^2}{dx^2}\left(\frac{R(x)}{C(x)}\right) = \frac{\frac{d}{dx}(875x - 1800)}{(900x + 75(50 - x))^2}\]\)
Simplifying the second derivative expression, we get:
\(\[\frac{d^2}{dx^2}\left(\frac{R(x)}{C(x)}\right) = \frac{875}{(900x + 75(50 - x))^2}\]\)
c) To find any asymptotes of the function, we need to determine the values of \(\(x\)\) where the denominator of the ratio function becomes zero:
\(\[900x + 75(50 - x) = 0\]\)
Solving this equation will give us the potential vertical asymptotes.
d) To sketch the graph of the function, the first derivative, and the second derivative, we can plot them on a graph paper, using different colors for each function. The graph will help us visualize the points of interest, such as local extrema and points of inflection.
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Please help me find the answer.
Answer: sqrt 91
Step-by-step explanation:
We can substitute in y here as 30, so that 60+102=2x^2
182=2x^2
In the order of operations, it states that exponents comes before multiplication
91=x^2
So x will be the square root of 91
Demarco and Tanya have received information about three separate mortgage offers. In two or three paragraphs, describe your recommendation for the best financial choice in their situation. Evaluate each of the three offers, compare and contrast their effectiveness, and explain the offer that works best. As you explain your answer, support it using reasons and evidence from the calculations you made based on the information provided in this guide for Analyzing Mortgage Options.
Answer:
Option A would be the best option, as the payment would not change. Option B has a lower payment, but that payment is expected to rise and eventually be a bigger payment. Option C would require them to pay it off in 8 years, which would be too much based on their income and they would end up having to get another mortgage. Option C would be better if they wanted to live their temporarily, but Demarco and Tanya would like to live in their house permanently. This makes option A the best option because it is an affordable payment that will not change.
Step-by-step explanation:
The best option will be option A which will be chosen by Demarco and Tanya.
What is finance?Finance deals with the study of money, management, creation, and investments. Also, finance is divided into the following board of categories such as personal finance, corporate finance, and public finance.
The best option will be option A which will be chosen by Demarco and Tanya as the payment plan would not change in this situation.
Option B has a lower payment, but the payment is expected to increase with time and eventually be a bigger payment.
Also, option C would require them to pay it off in 8 years but both of them want to live permanently not separately. Therefore, the best option to choose will be option A.
So, The best option will be option A which will be chosen by Demarco and Tanya.
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what is the probability that a positive integer not exceeding 100 selected at random is divisible by 5 or 7
Answer:
So, the probability of selecting a number from 1 to 100 that is divisible by 5 or 7 is 0.32.
Hope this helped!
Find the area of the shaded regions below. Give your answer as a completely simplified exact value in term of pie.
1) The area of the shaded portion is; 63π
2) The area of the shaded portion is; 4π - 8√2
How to find the area of the shaded region?1) The formula for area of a circle is;
A = πr²
where r is radius
The radius here is 9cm and so;
A = π * 9²
A = 81π
The area of a sector is given by the formula;
(θ/360) * πr²
Thus;
A_sect = (80/360) * π * 9²
A_sect = 18π
Area of shaded region = 81π - 18π
Area of shaded region = 63π
2) Using trigonometric ratio, we can find the diameter LN as;
4/LN = cos 45
4/LN = 1/√2
LN = 4√2
Formula for area of semi circle is;
A = ¹/₂πr²
A = ¹/₂ * π * (¹/₂ * 4√2)²
A = ¹/₂ * π * 8
A = 4π
Area of triangle = ¹/₂ * 4 * 4√2
= 8√2
Area of shaded portion = 4π - 8√2
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Happy (Valentine) day!
Happy Valentine's day!!! May God bless you!
Answer:
happy Valentine day you too
If Clarence drives 60 miles per hour, it will take him 3 hours to drive
to Concordia. How many minutes longer will it take to make the trip
if he drives 48 miles per hour?
Answer:
3.75 Hours or 3H and 45m
Step-by-step explanation:
60MPH * 3H = 180M
180 / 48 = 3.75
Step-by-step explanation:
Distance = rate x time = 60 mi/hr * 3 hr = 180 mi
distance / rate = time = 180 mi / 48 mi/hr = 3.75 hr
it will take .75 hr longer which is 45 minutes longer
what is the volume of a cylinder with a a radius of 9 inches and a hirght of 2 inches? use 3.24 for pie. round your answer to the nearest hundredth
Answer:
To answer this u need the formula v=pi r^2h. Since r=9 and h= 2, we could solve the equation by plugging in the variables. v= (3.14)(9)^2(2) is equal to 508.94
explain the tradeoff of using a high versus a lower sampling rate when sampling audio data. include a discussion of the sampling rate as described by the nyquist theorem.
The tradeoff of using a higher versus a lower sampling rate when sampling audio data lies in balancing the fidelity of the recorded sound and the storage or processing requirements. Higher sampling rates capture more details and provide better audio quality but require more storage space and computational resources. Lower sampling rates result in reduced audio quality but require less storage space and computational resources.
The sampling rate refers to the number of samples taken per second when converting an analog audio signal into a digital format. It is typically measured in samples per second or hertz (Hz). The Nyquist theorem states that to accurately reproduce a continuous waveform, the sampling rate must be at least twice the highest frequency present in the audio signal.
When using a higher sampling rate, more samples are taken per second, resulting in a more accurate representation of the original analog signal. This leads to better audio quality, particularly in capturing high-frequency components and subtle details. Higher sampling rates are commonly used in professional audio production and high-fidelity audio systems.
However, using a higher sampling rate comes with tradeoffs. Firstly, it requires more storage space as each sample needs to be stored. For example, a sampling rate of 44.1 kHz (common for audio CDs) results in a larger file size compared to a lower sampling rate like 22.05 kHz. Secondly, higher sampling rates require more computational resources for processing and playback, as more data needs to be processed in real-time.
On the other hand, using a lower sampling rate reduces the amount of data captured and processed per second. This results in decreased audio quality, especially for high-frequency sounds and subtle nuances. Lower sampling rates are often used in scenarios where audio quality is not a critical factor, such as telecommunications or certain multimedia applications where storage and computational efficiency are prioritized.
The choice of sampling rate in audio data sampling involves a tradeoff between audio quality, storage requirements, and computational resources. Higher sampling rates provide better fidelity and detail but require more storage space and computational resources. Lower sampling rates result in reduced audio quality but are more efficient in terms of storage and processing. The Nyquist theorem establishes a minimum sampling rate requirement to accurately capture the audio signal.
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How do you convert 2D coordinates to 3D coordinates?
There is no such formula, because there are infinitely many "cornered objects" for a single 2D sketch.
To convert 2D coordinates to 3D coordinates We can extrude or drag the shape in the third 3D space direction if you desire a prismatic object. Such block graphics can be easily shown in Word, Excel, and many other programs.
To formulate a surface if co-ordinates are given in parametric form x(t),y(t) forming any base contour, then add z=cu, where c is chosen for the depth you want. like this (x(t),y(t),cu);
As you question, the overall conversion of 2D projection to 3D is uncertain. However, if two orthogonal views are provided, software like Autodesk may utilize specific criteria to build a 3D view that you can rotate with your mouse.
To generate an extruded or linearly swept surface mathematicall
Use two parameters (t, u) to create a 3D extrusion/prism surface, one for the reference plane and the other for adding depth.
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one hundred and sixty-two thousandths as a decimal
Answer:
0.0162
Step-by-step explanation:
Cause it is
Answer:
0.162
Step-by-step explanation:
one hundred and sixty-two thousandths
162/1000 = 0.162