To find out how long it will take the hose to fill the larger aquarium, we need to compare the volume of water in each aquarium. The volume of the first aquarium is 8 x 9 x 12 = 864 cubic inches, and the volume of the second aquarium is 22 x 27 x 29 = 14,938 cubic inches. The second aquarium is 14,938 / 864 = 17.2 times larger than the first aquarium.
The time it takes to fill the first aquarium is 5 minutes, so it will take 5 x 17.2 = 86 minutes to fill the second aquarium with the same hose.
It will take 86 minutes to fill the second aquarium.
has a normal distribution with mean 7.5 and standard deviation 2.5. for which of the following is the probability equal to 0 ?
Using the normal probability distribution, it is found that P(X = 8) is equal to zero.
In a normal distribution with mean and standard deviation, the z-score of a measure X is given by:
[tex]Z = \frac{X-mean }{S.D.}[/tex]
It measures how many standard deviations the measure is from the mean.After finding the z-score, we look at the z-score table and find the p-value associated with this z-score, which is the percentile of X.As in any continuous distribution, the probability of an exact value, that is, P(X = x), is 0.Hence, from the last bullet point, it is found that P(X = 8) is equal to zero.
Learn more about standard deviation:
https://brainly.com/question/23907081
#SPJ4
If $5,000.00 is invested at 17% annual simple interest, how long does it take to be worth $21,150.00.
It will take
years (round to the nearest whole).
To find the number of years it takes for an investment to grow to a certain value at a certain interest rate, you can use the formula:
n = (future value - principal) / (principal * interest rate)
Where:
n = number of years
future value = the final value of the investment
principal = the initial amount invested
interest rate = the annual interest rate as a decimal
Plugging in the given values:
n = (21150 - 5000) / (5000 * 0.17)
n = 16.65
Rounding to the nearest whole number, it would take approximately 17 years for the investment to be worth $21,150.00.
Let x and y be functions of time t such that the sum of x and twice y is constant. Which of the followingequations describes the relationship between the rate of change of with respect to time and the rate ofchange of with respect to time?A) dx/dt=2dy/dtB) dx/dt=-2dy/dtC) 2dx/dt+dy/dt=0D) dx/dt + 2dy/dt=K, where K is a function of t
The equation describes the relationship between the rate of change of with respect to time and the rate of change of with respect to time is dx/dt -2 dy/dt
What are functions?In mathematics, a function is an expression, rule, or law that establishes the relationship between two variables (the dependent variable). Mathematics is rife with functions, and the sciences depend on them for constructing physical relationships. One input results in one output when using a function, which is a type of rule. by Alex Federspiel, the photo's author. Here, y=x2 serves as an illustration. A single output for y results from any input for x. Since x is the input value, we would state that y is a function of x.Well x + 2y = k (constant)
differentiate through wrt t
dx/dt + 2 dy/dt = 0
so dx/dt -2 dy/dt (so B)
To learn more about functions refer to:
https://brainly.com/question/25638609
#SPJ4
question the distribution of heights for adult men in a certain population is approximately normal with mean 70 inches and standard deviation 4 inches. which of the following represents the middle 80 percent of the heights?
The height that represents the middle 80 percent of the heights is 64.87 inches and 74.13 inches and this can be determined by using the given data.
Given :
The distribution of heights for adult men in a certain population is approximately normal with a mean of 70 inches and a standard deviation of 4 inches.
The heights that represent the middle 80 percent of the heights are:
P(-z < Z < z) = 0.80
P(Z < z) - P(Z < -z) = 0.80
P(Z < z) - (1 - P(Z < z)) = 0.80
2P(Z < z) = 1.80
P(Z < z) = 0.90
So, the value of z is 1.282.
Now, put the values of height as follows:
x1= 64.87
x2= 75.13
Therefore, the height that represents the middle 80 percent of the heights is 64.87 inches and 74.13 inches.
For more information of height learn here
https://brainly.com/question/23907081
#SPJ4
Larry starts at the bottom of a long staircase. He climbs exactly of the stairs. Then, he goes back down exactly 2/3 of the way to the bottom. From that spot, he climbs exactly of the way to the top. Finally, from there he 1/2 2/3 climbs 6 stairs to reach the top. How many stairs are in the staircase?
There are a total of 27 steps on the staircase.
What are Fractions?Fractions are numbers which are of the form a/b where a and b are real numbers. This implies that a parts of a number b.
Let x be the total number of steps in the staircase.
Larry climbs exactly 2/3 of the stairs.
Number of steps Larry climbed = 2x/3
She goes back exactly 1/2 of the way to the bottom.
Number of steps returned = (2x/3) (1/2) = 2x/6 = x/3
She is at x/3 steps from the bottom.
From that spot, she climbs exactly 2/3 of the way to the top.
Remaining steps to the top = x - x/3 = 2x/3
Number of steps Larry climbed = 2/3 of the way to the top = (2/3)(2x/3) = 4x/9
So we get,
x/3 + 4x/9 + 6 = x
x - x/3 - 4x/9 = 6
x - 7x/9 = 6
2x/9 = 6
2x = 54
x = 27
Hence there are 27 steps in the staircase.
To learn more about Fractions, click :
https://brainly.com/question/8482939
#SPJ1
The complete question is as follows :
Lara starts at the bottom of a long staircase. She climbs exactly 2/3 of the stairs. Then, she goes back down exactly 1/2 of the way to the bottom. From that spot, she climbs exactly 2/3 of the way to the top. Finally from there, she climbs 6 stairs to reach the top. How many stairs are in the staircase?
Equivalent Expressions:
Simplify each expression:
7(3x + 5y) = ?
Answer:
21x+35y=?
Step-by-step explanation:
multiply 3 by 7
multiply 5 by 7
you can't add different variables together
antarctica is roughly semicircular, with a radius of 2000 km (fig. 1-5). the average thickness of its ice cover is 3000 m. how many cubic centimeters of ice does antarctica contain? (ignore the curvature of earth.)
The volume of ice in Antarctica can be calculated by first determining the area of the semicircle.
This can be done by multiplying the radius (2000 km) of the semicircle (2πr2) by half, resulting in a total area of 3,14159265 x (2 x 20002) = 628318530 km2. To calculate the volume of ice, this area must be multiplied by the average thickness of the ice cover (3000 m). This results in a total volume of 18,8547595 x 1012 cm3 of ice in Antarctica. To put this into perspective, this is the equivalent of roughly 6.5 billion Olympic swimming pools of ice.The volume of ice in Antarctica can be calculated by first determining the area of the semicircle.
Learn more about area of the semicircle here:
https://brainly.com/question/29393120
#SPJ4
1. (05.01 LC) Which data set could be represented by the boxplot shown? (1 point) boxplot with the minimum of 6, lower quartile value of 7, median of 9, upper quartile of 13, and maximum of 14. {6, 6, 8, 8, 9, 12, 13, 13, 14} {6, 6, 7, 9, 9, 12, 13, 14, 16} {6, 7, 8, 9, 10, 11, 12, 13, 14} {6, 7, 9, 9, 9, 12, 13, 14, 14}
A data set which could be represented by the boxplot shown include the following: A. {6, 6, 8, 8, 9, 12, 13, 13, 14}.
What is a box-and-whisker plot?In Mathematics, a boxplot is sometimes referred to as box-and-whisker plot and it can be defined as a type of chart that can be used to graphically or visually represent the five-number summary of a data set with respect to locality, skewness, and spread.
Based on the information provided about the given box-and-whisker plot, the five-number summary for the given data set include the following:
Minimum = 6.First quartile = 7.Median = 9.Third quartile = 13.Maximum = 14.By critically observing the box-and-whisker plots or boxplot (see attachment), we can logically deduce that it correctly represents this data set {6, 6, 8, 8, 9, 12, 13, 13, 14}.
Read more on boxplot here: https://brainly.com/question/29648407
#SPJ1
describe all the x -values at a distance of 15 or less from the number 6 . enter your answer in interval notation.
The set of all x-values at a distance of 15 or less from the number 6 can be represented in interval notation as (-9, 21).
Interval notation is a way of expressing a set of numbers in a concise and easily readable format. In this case, we are looking for all the x-values that are a distance of 15 or less from the number 6. To find these values, we need to consider the range of numbers that are 15 units away from 6 in both the positive and negative directions.
On the negative side, 6 - 15 = -9, so any x-value that is greater than -9 and less than 6 is within the desired range.On the positive side, 6 + 15 = 21, so any x-value that is greater than 6 and less than 21 is also within the desired range.So, in interval notation, the set of all x-values at a distance of 15 or less from 6 is written as (-9, 21) which means all the values between -9 and 21 (not including -9 and 21)
Key points:
Interval notation uses parentheses to indicate that the endpoint is not included in the interval, and square brackets to indicate that the endpoint is included.The interval is always written in increasing order, with the lower endpoint first and the upper endpoint second.Interval notation is commonly used in mathematics, particularly in calculus and analysis, to describe the domain or range of a function.Learn more about Interval notation here:
https://brainly.com/question/16768997
#SPJ4
Which of the following shows 8x³y + x² - 14z - 2 + 5y2x written in standard form?
-14z + 8x³y + 5y²x - 2 + x²
8x³y + 5y²x + x² - 14z - 2
8x³y + x² + 5y²x - 14z - 2
x²-2-14z + 5y²x + 8x²y
Answer:
The correct answer is 8x³y + 5y²x + x² - 14z - 2.
Step-by-step explanation:
This is in standard form because it is a polynomial with the terms arranged in descending order of their exponents, with the coefficient of each term being positive.
The exponent of x is 3, the exponent of y is 2, the exponent of z is 1, and the constant is -2.
A parabolic tunnel has a width of 20 feet and a height of 12 feet at the center. Find the cross-sectional area of the parabolic tunnel.
A. Illustrate the parabolic tunnel. Show the measurements.
A parabolic tunnel has the shape of a parabola in cross-section, with one axis being symmetric (the width) and the other axis being the height at the center. To find the cross-sectional area of the parabolic tunnel, we can use the formula for the area of a parabola:
Area = (1/2) x Width x Height
Given that the width of the parabolic tunnel is 20 feet and the height at the center is 12 feet, we can substitute these values into the formula:
Area = (1/2) x 20 x 12 = 120 square feet.
So the cross-sectional area of the parabolic tunnel is 120 square feet.
Please help!! Unit 7 lesson 7 geometry
Answer:
x=10
Step-by-step explanation:
The triangles CAB and PMB are similar. And since each side of CAB is 2 times longer than the side of PMB, we can write the equation:
3x=2(x+5)
3x=2x+10
x=10
Question 7
Find the measure of each angle indicated
Answer:
<Q = 93
Step-by-step explanation:
The sum of the angles of a triangle is 180
<Q + <P + < R = 180
<Q + 51+36 = 180
<Q+87=180
<Q = 180-87
<Q = 93
siete veces un número en expresión algebraica
In algebra, "seven times a number" is written as 7x, which is the multiplication of seven instances of the symbol x.
What is the formula for algebraic expressions?An equation that includes constants, variables, and a few algebraic operations is said to be algebraic. A good example of an algebraic expression is 3x2 2xy + d. So, three different types of fundamental building blocks make up an algebraic expression: Coefficient (i.e. numbers) (i.e. numbers)
A seven-times-a-number is represented by multiplying it by seven or adding it to another integer (since this is an abbreviated successive addition ).
If x is any number, then it may be written as follows seven times: Algebraic expressions (numbers or letters) are linked by fundamental operations including addition, subtraction, multiplication, and division in mathematical language.
To learn more about algebraic expression from given link
https://brainly.com/question/4541471
#SPJ1
Complete question -
Seven times a number in algebraic expression
N(t) = 25t + 150 for 0<=t<6, (200 + 80t)/(2 + 0.05t) for t>=8The number of fish in a pond at time t years is modeled by the function N defined above, where f is a continuous function such that f(0)=80.a) Find limt→[infinity]N(t). Explain the meaning of limt→[infinity]N(t) in the context of the problem.
a) limit→[infinity]N(t) = limit→[infinity](200 + 80t)/(2 + 0.05t) = 200.
What is a limit in plain English?
A limit in mathematics is a point at which a function approaches the output for the specified input values. Calculus and mathematical analysis depend on limits, which are also used to determine integrals, derivatives, and continuity.
This means that as the number of years (t) approaches infinity, the number of fish in the pond (N(t)) approaches a limit of 200. In other words, as t gets larger and larger, the number of fish in the pond will get closer and closer to 200, but will never exceed 200. In the context of the problem, this means that the pond has a carrying capacity of 200 fish and that the population of fish in the pond will eventually stabilize at this level, regardless of the initial population.
Learn more about limit
https://brainly.com/question/24133116
#SPJ4
In 2007, a principal of $4700 was invested at 5.25% Interest, compounded annually.
Let t be the number of years since 2007. Let y be the value of the investment, in dollars.
Write an exponential function showing the relationship between y and t.
The formula for calculating the future value of an investment compounded annually is:
FV = P(1 + r)^t
where:
FV = future value of the investment
P = principal or initial investment
r = annual interest rate as a decimal
t = number of years the investment is held
In this problem, the principal is given as $4700, the annual interest rate is given as 5.25%, and the time is measured in years since 2007.
So we can write the function as:
y = 4700(1 + 0.0525)^t
In this function, y represents the future value of the investment (in dollars) and t represents the number of years since 2007.
The above function can be written in the form A or A B , where A and B are constants or variable expressions that have no variables in common.
A = 4700
B = 1 + 0.0525
y = A*B^t
So the exponential function for the problem is:
y = 4700*(1+0.0525)^t
Please help (Geometry)
PICTURE INCLUDED
Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. Release your mouse button when the item is place. If you change your mind, drag the item to the trashcan. Click the trashcan to clear all your answers.
Solve the following inequality. Then place the correct answer in the box provided. Answer in terms of a mixed number.
3y + 5 < 10
The inequality is for the given term 3y + 5 < 10 is y < 5/3.
What is inequality?
The term "inequality" refers to a mathematical expression in which the sides are not equal to one another. In essence, an inequality compares any two values and demonstrates that one value is less than, greater than, or equal to the value on the other side of the equation.
Less than (<), greater than (>), less than or equal (≤), greater than or equal (≥), and the not equal symbol (≠) are the inequality symbols.
Inequalities are used to compare numbers and identify the range (or ranges) of values that satisfy the requirements of a given variable.
Given to solve the inequality
3y + 5 < 10
3y < 10 - 5
3y < 5
y < 5/3
and
y ∈ (−∞, 3/5)
Thus, the inequality is for the given term 3y + 5 < 10 is y < 5/3.
Learn more about inequality
https://brainly.com/question/30231190
#SPJ1
by evaluating first and second derivatives using differential calculus (and not a purely graphical solution), show that the molar entropy of mixing is maximized for a specific value for nne and determine this value as well as the corresponding maximized change in molar entropy upon mixing (in j/mol-k).
The molar entropy of mixing is given by the equation S_mix = R(x1lnx1+x2lnx2).
To maximize the molar entropy of mixing, we need to find the value of x1 and x2 that will produce the maximum value of S_mix. Differentiating S_mix with respect to x1 and x2 and setting the derivatives equal to 0 will yield the critical points. The critical points can then be tested to see which one produces the maximum value of S_mix. After differentiating, we get x1 = x2 = 1/2. This implies that the molar entropy of mixing is maximized when the mole fraction of each component is 0.5. The corresponding maximized change in molar entropy upon mixing is Rln2 which is equal to 2.30258509299405 j/mol-k.
Learn more about critical points here:
https://brainly.com/question/29144288
#SPJ4
Please really need help on these
Answer:
2. True
3. Maximum
4. [tex]2(m-9)^2[/tex]
Step-by-step explanation:
Question 2:
Yes, it is the vertex formula used to calculate the vertex of a quadratic funtion.
Question 3:
Since the first term of the equation has a negative coefficient, the parabola turns upside down, which opens down. Therefore the equation has a maximum.
Question 4:
[tex]2m^2-36m+162\\[/tex]
Find the GCF:
[tex]2(m^2-18m+81)[/tex]
Find the perfect square binomial:
[tex]81*1=81\\\\(-9*-9)\\\\-9*-9=81\\\\-9-9=-18[/tex]
Therefore this equation can be written as a perfect square binomial.
[tex]2(m-9)^2[/tex]
A sports reporter records the number of touchdowns scored each week during the football season. What statistical question could the reporter ask about the data?
Answer:
There are a lot of questions the reporter could ask.
Step-by-step explanation:
There are several statistical questions that a sports reporter could ask about the data on the number of touchdowns scored each week during the football season, depending on their focus and the information they want to gather. Some examples could be:
What is the mean number of touchdowns scored per week?
What is the median number of touchdowns scored per week?
What is the mode of number of touchdowns scored per week?
What is the range of the number of touchdowns scored per week?
What is the standard deviation of the number of touchdowns scored per week?
Is there a trend or pattern to the number of touchdowns scored per week?
Is there a difference in the number of touchdowns scored per week between home and away games?
What factors are associated with the number of touchdowns scored per week?
What is the probability of scoring a certain number of touchdowns per week?
Are the number of touchdowns scored per week follow a normal distribution?
These are just a few examples of the questions that a sports reporter could ask about the data. The specific question will depend on the goals of the analysis and what the reporter wants to convey to their audience.
5. An association of coffee producers has estimated that 50% of adult workers drink coffee at least occasionally while on the job. Given this estimate:
a) For a randomly selected group of 4 adult workers, what is the probability that no more than 3 of them drink coffee at least occasionally while on the job?
For a randomly selected group of 4 adult workers, the probability that no more than 3 drink coffee at least occasionally while on the job is 37.5%.
What is the probability?Probability refers to the chance, odds, or likelihood that an expected outcome is obtained when there are many possible events.
Probability may be 100% certain, depicted as 1, or 100% uncertain, expressed as zero.
Other values of probability lie between one and zero as fractional values that can be depicted as percentages, decimals, or fractions.
The estimated percentage of adults who at least occasionally drink coffee = 50%
Random sample = 4
The number of adult workers from 4 who occasionally drink coffee on the job = 3
The probability of 3 out of 4 workers drinking coffee on the job = 37.5% (3/4 x 50%)
Learn more about probabilities at https://brainly.com/question/13604758
#SPJ1
how would you graph functions like these in a graph?
Answer:
Step-by-step explanation:
f(x) is basically another term for y, and you already have your x values, so you can just plot the points and draw lines through them :)
For drawing graphs we have two points (x-axis and y-axis ) to loacte exact location on the graph.
X-axis point to locate on the graph parallel distance from y-axis.
Y-axis point to locate on the graph parallel distance from x-axis.
Take the y-coordinates as the f(x) and points of x-coordinates as the value of x.
1.Write down the coordinates of x-axis and y-axis
y=-3x+1
(X-axis,Y-axis)=A(-2,7),B(-1,4),C(0,1),D(1,-2),E(2,-5)
2.Write down the coordinates of x-axis and y-axis
y=-x²+5
(X-axis,Y-axis)=A(-2,1),B(-1,4),C(0,5),D(1,4),E(2,1)
3.Write down the coordinates of x-axis and y-axis
y=[tex]2^{x}[/tex]
(X-axis,Y-axis)=A(-2,0.25),B(-1,0.5),C(0,1),D(1,2),E(2,4)
These are the graphs linke images
Learn more about, Graphs
https://brainly.com/question/25974513
What length of 2-in. by 4-in. material will be required to make six bench legs each 28 1/4 in. long?
Material will be required to make six bench legs each 28 1/4 inch is 169.5 inches.
What is Fraction?
An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction. The numerator of a proper fraction is less than the denominator.
What is Decimal?
The accepted method for representing both integer and non-integer numbers is the decimal numeral system. It is the expansion of the Hindu-Arabic numeral system to non-integer values. Decimal notation is the term used to describe the method of representing numbers in the decimal system.
The simple solution is to convert 28 1/4 to a decimal and be cautious about converting it back to a fraction if necessary.
28 1/4=28.25
You need Six of them.
1 leg measures28.25 inches.
6 legs = x
Cross multiply 1/6 = 28.25 / x
x = 6* 28.25
x equals 169.5 inches
How many feet is that exactly? To calculate the amount of feet, divide by 169.5 /6=28.25 feet.
2 by 4s are typically 6 feet long. Unfortunately, you will need two of these for two more for 6 feet.
Learn more about Fraction click here:
https://brainly.com/question/28699958
#SPJ1
Which input in this table is incorrect?
help would be appreciated!
Complete the equation describing how
x and y are related.
0 1 2 3
4 5
y 0 1 2 3 4 5
y = [? ]x
Enter the answer that belongs in [?].
Answer:56
Step-by-step explanation:
Kareem paid $29.96 for a basketball. The sales tax for his purchase was 7%. What was the original cost of the basketball?
Which figure is a quadrilateral?
Answer: Figure 2 (The rectangle)
Hope this helps :)
Step-by-step explanation:
Quadrilaterals are shapes that have 4 (connected) sides
Answer:
the second figure
Step-by-step explanation:
Quadrilaterals have a maximum and minimum of four
a) The transportation cost of 35 kg of potatoes is Rs 105. (i) What is the transportation cost of 2.5 quintals of potatoes at the same rate for the same distance? (ii) How many quintals of potatoes can be transported for Rs 1,500 at the same rate for the same distance?
(i) 1 quintal = 100 kg
2.5 quintals = 2.5100 = 250 kg
Transportation cost of 250 kg of potatoes = 105(250/35) = Rs 750
we are asked to find the transportation cost of 2.5 quintals (250 kg) of potatoes at the same rate as 35 kg of potatoes. We know that the transportation cost for 35 kg is Rs 105.
To find the cost for 250 kg, we use the proportion of 35/105 = x/750. By cross multiplying we get x= 250*105/35= 750. So the transportation cost for 250 kg of potatoes is Rs 750.
(ii) Transportation cost of 1 quintal of potatoes = 105*(100/35) = Rs 300
Transportation cost of 1 quintal of potatoes = Rs 1500 / Rs 300 = 5 quintals.
we are asked to find how many quintals of potatoes can be transported for Rs 1,500 at the same rate as 35 kg of potatoes. We first find the transportation cost of 1 quintal of potatoes by using the proportion of 35/105 = x/300.
So x = 100, thus the transportation cost of 1 quintal of potatoes is Rs 300. So we can transport 1 quintal of potatoes for Rs 300. Dividing 1500 by 300, we get 5 quintals.
Find more numerical on costs and distance: https://brainly.com/question/1853254
Compute the perimeter of the shape shown.
A) 17 cm
B) 19 cm
C) 13 cm
D) 15 cm
Answer:
D. 15
Step-by-step explanation:
4+5+6=
4+5=9..
9+6=
15.
Thus, Answer is D. 15
Answer:
Your answer is: D)15cm
Step-by-step explanation:
To find the perimeter add all of the side together.
6+4+5=15
