The number of ways to arrange all the letters if the arrangement must end in a vowel is; 25,200.
The number of arrangement using only five letters is; 6720.
What is the number of ways to arrange the letters as described?Since there are 5 options for the last letter, and there a 7 letters left to make an arrangement of 7.
Hence, The number of ways can you arrange all of the letters if the arrangement must end in a vowel is; 5 × 7!
= 5 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 25,200.
b). The number of arrangements if one can only use five letters is; ⁸P₅
= 6720.
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Write the sentence as an equation.
242 fewer than the quantity 193 times n equals 131
I think this is it
252-(193×n) =131
The hypotenuse of a right triangle measures 7cm and one of its legs measures 2m. Find the measure of the other leg. If necessary, round to the nearest tenth.
Answer: 6.7
Step-by-step explanation: 7^2-2^2=45
square 45 =6.7
{y=1/2x−4
{ y=−2x+1
What is the y-
coordinate for the solution to the system of equations?
The y-coordinate for the solution to the system of equations is y = -3.
What is substitution method?The substitution method is typically used in mathematics to solve an equation system. In this approach, you solve the equation for one variable first, then you enter its value into the other equation.
Simultaneous equations may usually be solved easily using the substitution method. There are direct ways that can give you the value of the unknown variables, such as cross-multiplication techniques. However, this method can be chosen over other algebraic methods for straightforward equations that don't require complicated calculations.
The system of equation is given as:
y = 1/2x - 4
y = -2x + 1
Substituting the value of y in equation 1 we have:
-2x + 1 = 1/2x - 4
-2x + 1 = x - 8 / 2
(-2x + 1)(2) = x - 8
-4x + 2 = x - 8
2 + 8 = x + 4x
10 = 5x
x = 2
Substituting the value of x in the second equation:
y = -2(2) + 1
y = -4 + 1
y = -3
Hence, the y-coordinate for the solution to the system of equations is y = -3.
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Six more than one-fifth of a number p is equal to a number k.
Step-by-step explanation:
We can start by using an equation to represent the given information. Let's call the number p, and the number k, then:
k = (1/5)p + 6
So, "six more than one-fifth of a number p is equal to a number k" can be represented mathematically as k = (1/5)p + 6. To find the value of p, we can solve for p:
p = 5k - 30
So, p is equal to 5 times the value of k minus 30.
It is important to know what the variables in interest-rate formulas represent.
Compound Interest: A = P(1 + F)nt
Continuously Compounded Interest: A = Pert
Write the variable in the blank next to its description.
Answer:
Step-by-step explanation:
In the compound interest formula: A = P(1 + r)^t
A represents the amount of money in the account at the end of the term t, including interest.
P represents the initial principal, or the amount of money invested.
r represents the interest rate, usually expressed as a decimal.
t represents the number of time periods over which the interest is compounded.
In the continuously compounded interest formula: A = Pe^(rt)
A represents the amount of money in the account at the end of the term t, including interest.
P represents the initial principal, or the amount of money invested.
r represents the interest rate, usually expressed as a decimal.
t represents the number of time periods over which the interest is compounded.
So the variables in the formulas and their descriptions are:
A: the amount of money in the account at the end of the term t, including interest
P: the initial principal, or the amount of money invested
r: the interest rate, usually expressed as a decimal
t: the number of time periods over which the interest is compounded.
A store owner want to develop a new snack mix by mixing chocolate and trail mix. How many pounds of chocolate costing $10.40 per pound should be mixed with 10 pound of trail mix costing $4.30 per pound to create a mixture worth $7.96. (round to the nearest pound)
Answer: 15 pounds
Step-by-step explanation:
10.4(x)+4.3(10)=7.96(x+10)
10.4x+43=7.96x+79.6
2.44x=36.6
x=15 pounds
(check my work. I may have done something wrong, but the equation should be correct.)
What is the value of f(3) in the function below?
f(x) = 1/4 • 2*
A. 4
B. 2
C. 8
D. 3/2
The value of f(3) is 2.
Option B is the correct answer.
What is a function?A function has an input and an output with a relationship between them.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
f(x) = 1/4 x [tex]2^x[/tex]
Substitute x = 3.
f(3) = 1/4 x 2³
f(3) = 1/4 x 8
f(3) = 2
Thus,
The value of f(3) is 2.
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Of the apps on Juan’s tablet, 3/4 are gaming apps,and 5/7 of the gaming apps are action games.what fraction of the apps on Juan’s tablet are action games?
On solving the provided question, we can say that By fraction, 3/4 times 5/7 is 15/28 and Action games are 15/28 of the apps.
what is fraction?Any number of equal portions, or fractions, can be used to represent a whole. Fractions in standard English indicate how many units of a certain size there are. 8, 3/4. A whole includes fractions. The ratio of the numerator to the denominator is how numbers are expressed in mathematics. Each of these is an integer in simple fractions. In the numerator or denominator of a complex fraction is a fraction. True fractions have numerators that are less than their denominators. A fraction is a sum that constitutes a portion of a total. By breaking the entire up into smaller bits, you can evaluate it. Half of a full number or item, for instance, is represented as 12.
By fraction,
3/4 times 5/7 is 15/28.
Action games are 15/28 of the apps.
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Mia bought five pounds of potatoes and sent a total of 3.65 for them
The cost of one pound of potato is 0.73 pounds.
What is Algebra ?The mathematical field of algebra assists in the depiction of problems or conditions as mathematical statements. It involves variables like x, y, z, and mathematical operations like addition, subtraction, multiplication, and division to form a meaningful mathematical expression.
Now in the given question , we have to find the cost of one pound of potato.
here we have to find the cost of one pound of potato mia bought.
she total spent $3.65 for them and bought five pounds of potatoes.
cost of one pound of potato
= [tex]\frac{total spent}{total bought} = \frac{3.65}{5} =0.73 pounds[/tex]
hence, cost of one pound of potato is 0.73 pounds.
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Kelsey orders several snow globes that each come in a cubic box that measures 14
foot on each side. Her order arrives in the large box shown below. The large box is completely filled with snow globes.
The number of snow globe in box is x³/ 2744.
What is Volume?Each thing in three dimensions takes up some space. The volume of this area is what is being measured. The space occupied within an object's borders in three dimensions is referred to as its volume. It is sometimes referred to as the object's capacity.
Given:
length of one small cube = 14 foot.
Volume of small cube = l³
= 2744 ft³
let the edge of one large cube be x.
So, volume of large cube= x ft³
Thus, number of globes in larges box
= Volume of large box/ Volume of small box
= x³/ 2744
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A baseball coach purchased bats and batting helmets. The coach purchased 19 items in all. Each bat cost $18.25 and each batting helmet cost $24.50. If the coach spent a total of $396.75, how many bats did the coach purchase?
Answer:
11 bat and 8 helmets.
Step-by-step explanation:
Let x = the number of bats
Let y = the number of batting helmets
x + y = 19 Rewrite as y = 19 - x
18.25x + 24.50y = 369.75 Multiply by 100
1825x + 2450y = 36975 Substitute 19 - x for y
1825x + 2450(19 -x) = 39675 Distribute the 2450
1825x + 46550 - 2450x = 39675 combine like terms
-625x + 46550 = 39675 subtract 46550 from both sides
-625x = -6875 Divide both sides by -625
x = 11
He bought 11 bats
x + y = 19 Substitute 11 for x to solve for y
11 + y = 19 Subtract 11 from both sides
y = 8
He bought 8 helmets.
I will give brainliest and ratings if you get this correct
A. The indifference curve of a consumer is negatively sloped to the right because it represents the consumer's preference for one good over another. As the consumer's income increases, their willingness to substitute one good for the other increases.
B. The indifference curve is convex to the origin because it shows the diminishing marginal rate of substitution of the two goods. As the consumer reaches the optimal combination of goods, the marginal rate of substitution between the two goods decreases.
C. Using the Lagrange method, the optimum combination of goods can be determined as follows:
Let L(X,Y) be the Lagrangian of this problem:
L(X,Y) = √X² + Y² - λ(200 - 3X - 4Y)
Where λ is the Lagrange multiplier.
The optimal solution is obtained by setting the derivatives of L with respect to X and Y to 0 and solving the equations simultaneously.
∂L/∂X = 0 -> X = 11.85
∂L/∂Y = 0 -> Y = 8.57
Therefore, the optimum combination of goods is X = 11.85 and Y = 8.57.
D. The slope of the indifference curve is equal to the slope of the budget line. This can be shown by comparing their respective equations and noting that their slopes are the same. The equation for the indifference curve is Y/X = (-2/3) and the equation for the budget line is Y/X = (-3/4). Since these equations are the same, it follows that the slopes of the two lines are equal.
Angles (x+40) and (x-20) are supplementary, find the value of x
Answer:
x = 80
Step-by-step explanation:
supplementary angles sum to 180°
sum the 2 angles and equate to 180
x + 40 + x - 20 = 180
2x + 20 = 180 ( subtract 20 from both sides )
2x = 160 ( divide both sides by 2 )
x = 80
Xin is going to invest in an account paying an interest rate of 5.8% compounded annually. How much would Xin need to invest, to the nearest hundred dollars, for the value of the account to reach $2,290 in 16 years?
The amount that should be invested in order to have $2,290 in 16 years is $929.11.
What is compound interest?
The interest on a deposit calculated using both the initial principle and the accrued interest from prior periods is known as compound interest. In other words, compound interest is interest that is earned on interest.
Here, we have
Given: Xin will invest in an account paying an interest rate of 5.8% compounded annually.
Amount to invest = Future value / (1 + r)ᵗ
Where:
r = interest rate
t = time
X = $2,290 / (1 + 0.058)¹⁶
X = 2,290 / 2.46474
X = $929.11
Hence, the amount that should be invested in order to have $2,290 in 16 years is $929.11.
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Answer question B please
I tried doing my own explanation but i i only received a mark not full, i would really appreciate it if you would help m,
thx, kind regards
Lisa
Step-by-step explanation:
The slashes through the lines indicate they're of the same length, which means this is an equilateral triangle. Therefore all three angles are 60 degrees.
The lines being parallel mean that angle x shares the same angle as the triangle in the bottom-right corner.
The parallel lines intersecting with the line segment that is consistent throughout the triangle makes the angle the same.
Step-by-step explanation:
We can see that the triangle in the picture is an equilateral triangle, because its sides are all marked with one dash, meaning they are equal lengths. We note that all the angles in an equilateral triangle are each 60°.
The little arrows on the top and bottom lines in the figure indicate that they are parallel, which means that the diagonal line between them creates a set of alternate angles (I've attached a pic of what alternate angles generally look like to make this clearer).
Alternate angles are equal, which means x is equal to the angle at the bottom right of the triangle, which is 60°.
Given the following observation for ortime serie X
t=1,2,3,4,5,6,7,8,9,10
Xt=47,64,23,71,38,64,55,41,59,48
Find
r(2)
Answer:t he autocorrelation of the time series X at lag 2 is approximately -0.018.
Step-by-step explanation:
To find the autocorrelation of the time series X at lag 2, we need to calculate the covariance between X(t) and X(t-2). This can be done using the following formula:
r(2) = cov(X(t), X(t-2)) / var(X(t))
where cov(X(t), X(t-2)) is the covariance between X(t) and X(t-2), and var(X(t)) is the variance of X(t).
To calculate the covariance, we'll use the following formula:
cov(X(t), X(t-2)) = sum((X(t) - mean(X(t))) * (X(t-2) - mean(X(t-2)))) / (n - 1)
where n is the number of observations in the time series. To calculate the variance, we'll use the following formula:
var(X(t)) = sum((X(t) - mean(X(t)))^2) / (n - 1)
First, let's calculate the mean of X(t):
mean(X(t)) = (47 + 64 + 23 + 71 + 38 + 64 + 55 + 41 + 59 + 48) / 10 = 51
Next, let's calculate the covariance between X(t) and X(t-2):
cov(X(t), X(t-2)) = sum((X(t) - 51) * (X(t-2) - 49)) / (10 - 1) = -10.3
Finally, let's calculate the variance of X(t):
var(X(t)) = sum((X(t) - 51)^2) / (10 - 1) = 563.7
Plugging in these values, we can find the autocorrelation at lag 2:
r(2) = cov(X(t), X(t-2)) / var(X(t)) = -10.3 / 563.7 = -0.018
So the autocorrelation of the time series X at lag 2 is approximately -0.018.
Two large and 1 small pumps can fill a swimming pool in 4 hours. One large and 3 small pumps can also fill the same swimming pool in 4 hours. How many hours will it take 4 large and 4 small pumps to fill the swimming pool.(We assume that all large pumps are similar and all small pumps are also similar.)
Answer:
Step-by-step explanation: We can start the problem by using the principle of Proportional Equivalents. We can write two equations based on the given information:
Let's say that the rate of filling the pool with one large pump is x and the rate of filling the pool with one small pump is y.
Then, we can write the following two equations:
2x + 1y = 1/4 (because two large and one small pump can fill the pool in 4 hours)
1x + 3y = 1/4 (because one large and three small pumps can fill the pool in 4 hours)
Now we have two equations with two unknowns, x and y. We can solve for x and y using either substitution or elimination method. Let's use substitution method.
Solving for x:
From equation (1), we have 2x = 1/4 - 1y
Substituting this value of x in equation (2), we get:
1 (1/4 - 1y) + 3y = 1/4
Expanding and simplifying, we get:
1/4 - 1 + 3y = 1/4
3y = 1/2
y = 1/6
So, the rate of filling the pool with one small pump is 1/6.
Now that we have found the value of y, we can find the value of x.
x = 1/4 - 1y = 1/4 - 1 * 1/6 = 1/4 - 1/6 = 1/12
So, the rate of filling the pool with one large pump is 1/12.
Now that we have found the rate of filling the pool with each large and small pump, we can find the time it will take 4 large and 4 small pumps to fill the pool.
Let's call the rate of filling the pool with 4 large and 4 small pumps as R.
Then, R = 4 * 1/12 + 4 * 1/6 = 1/3
So, it will take 1/R = 3 hours to fill the pool with 4 large and 4 small pumps.
5.
Jenny had to increase her gas budget from $300 per month to $350 per
month. What is the percentage increase in Jenny's budget?
Answer:
16.66667% increase
Step-by-step explanation:
100 x 350 - 300/ 300 = 50/3 = 16.66667% increase
Formula for percent increase is below↓
One cubic foot holds 7.48 gallons of water, and 1 gallon of water weighs 8.33 pounds. how much does 2.6 cubic feet of water weigh in pounds? in tons?
Answer: Weight of water in 1 cubic foot water (in pounds)
Weight of water in 1 cubic foot water (in ounces)=
Step-by-step explanation:
Given: One cubic foot holds 7.48 gallons of water.
One gallon of water weighs 8.33 pounds.
To find the weight of water in 1 cubic foot water in pounds we apply Unitary method.
Weight of water in 1 cubic foot water (in pounds)
⇒Weight of water in 1 cubic foot water (in pounds)
Since , 1 pound = 16 ounces .
Weight of water in 1 cubic foot water (in ounces)=
Step-by-step explanation:
Complete the table of inputs and outputs for the function.
Mrs. Smith baked 2 cakes. There are seven people in her family. How much of the cakes can each person have? Make sure to write your answer as a simplified fraction.
The required, each person can have 2/7 of a cake. This fraction cannot be simplified any further, so the answer is 2/7.
What is the fraction?A fraction is a mathematical concept that can be used to express a portion of a whole or a number that can be written as the ratio of two integers.
here,
To divide the 2 cakes equally among 7 people, we can use division. We can think of the total amount of cake as 2 whole cakes or 2/1 cakes. To find out how much cake each person can have, we can divide the total amount of cake by the number of people:
2/1 cakes ÷ 7 people = 2/1 × 1/7 = 2/7 cakes per person
So each person can have 2/7 of a cake. This fraction cannot be simplified any further, so the answer is 2/7.
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What is the area of a triangle with base 24cm height 16cm and show the workings
Answer:
The triangle has an area of 192cm^2
Step-by-step explanation:
Given;
the formula to find the area of the triangle,
[tex]A=\frac{h_{b}b }{2}[/tex]
We can insert the values,
[tex]A=\frac{24*16}{2} \\\\\\A=\frac{384}{2} \\\\A=192cm^2[/tex]
The area of the triangle is 192cm^2.
am a 4-digit number. My thousands digit is greater than 6, but less than 8 My hundreds digits is the highest even number. and ones The sum of my tens cligit a digit is equal to my hundreds digit. My tens digit is 6. Who am I?
Answer:
From the given information, we know that:
The thousands digit is greater than 6 and less than 8, so it must be 7.
The hundreds digit is the highest even number, so it must be 8.
The tens digit is 6.
The sum of the tens and ones digit is equal to the hundreds digit, so 6 + ones digit = 8.
Solving for the ones digit, we get:
ones digit = 8 - 6 = 2
Putting the digits together, we get the number: 7862.
So, the 4-digit number that satisfies all the given conditions is 7862.
Step-by-step explanation:
Given the clues, the thousands digit is 7, the hundreds digit is 8, the tens digit is 6, and the ones digit is 2; therefore, the 4-digit number is 7862.
Explanation:Given the hints, we can infer that:
The thousands digit is greater than 6, but less than 8, so it can only be 7.The hundreds digit is the highest even number, which is 8.The tens digit was specifically said to be 6.The sum of the tens and ones digit is equal to the hundreds digit. The tens digit is 6 and the hundreds digit is 8, so the ones digit must be 2 because 6 + 2 = 8.Therefore, the 4-digit number is 7862.
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Cory is a bird-watcher. He estimates that 30% of the birds he sees are
American robins, 20% are dark-eyed juncos, and 20% are song sparrows. He
designs a simulation.
Let 0, 1, and 2 represent American robins.
Let 3 and 4 represent dark-eyed juncos.
Let 5 and 6 represent song sparrows.
Let 7, 8, and 9 represent other birds.
The table shows the simulation results.
05716
16803
96568
32177
33855
76635
92290
88864
72794
14333
79019
05943
77510
74051
87238
97895
86481
94036
12749
24005
According to this simulation, what is the probability that at least one of the
next five birds he sees is a song sparrow?
The probability that at least one of the next five birds he sees is a song sparrow is 0.65
How to determine the probability from the simulationFrom the question, we have the following parameters that can be used in our computation:
05716 16803 96568 32177 33855
76635 92290 88864 72794 14333
79019 05943 77510 74051 87238
97895 86481 94036 12749 24005
Also, we have:
Let 0, 1, and 2 represent American robins.Let 3 and 4 represent dark-eyed juncos.Let 5 and 6 represent song sparrows.Let 7, 8, and 9 represent other birds.Using the above as a guide, we have the following individual representations of at least one sparrow bird
Yes Yes Yes No Yes
Yes No Yes No No
No Yes Yes Yes No
Yes Yes Yes No Yes
So, we have
At least one sparrow bird = 13
Total = 20
So, the probability is
P = 13/20
Evaluate
P = 0.65
Hence, the probability is 0.65
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Mary invests £12000 into a savings account. The account 1.5% compound interest per year. Work out the value of her investment after 2 years.
Answer:
Step-by-step explanation:
To calculate the compound interest on Mary's savings account, we can use the formula:
A = P * (1 + r/n)^(nt)
Where:
A is the amount after t years
P is the initial principal (£12000)
r is the interest rate (1.5%)
n is the number of times the interest is compounded in a year (let's assume it's compounded annually)
t is the number of years (2)
So, plugging in the values, we get:
A = £12000 * (1 + 0.015/1)^(1 * 2)
A = £12000 * (1.015)^2
A = £12000 * 1.0302
A = £12363.84
So, after 2 years, Mary's £12000 investment would be worth £12363.84, including the compound interest.
Can someone do all of this and explain each one
Answer: no exact answer
Step-by-step explanation:
Jason decides to sell his band's CD. It required an investment of $3349 for computer hardware and it will cost $3.65 for materials for each disk. If each CD sells for $13.50, how
many must he sell to break even?
196 CDs
340 CDs
339 CDs
195 CDs
Answer:
340 CDs
Step-by-step explanation:
To answer this question, we're dealing with three functions for one problem, namely the revenue function, the cost function, and the profit function.
The revenue function is R(q) = pq, where p is the price of a certain good and q is the quantity sold.
The cost function is C(q) = variable cost + fixed cost, where variable costs changes depending on the quantity of goods produced and fixed cost is a one-time cost for the producer (e.g., an investment, rent, etc.).
The profit function is P(q) = R(q) - C(q) and is simply the cost function subtracted from the revenue function.
The "break-even point" is the point at which profit = $0 and the point at which cost = revenue.
From the problem, we see that Jason invested $3349 (once) for his CDs and each disk requires $3.65 for the materials so our cost function is C(q) = 3.65q + 3349
Furthermore, we see that each disks sells for $13.50, so our revenue function is R(q) = 13.5q
Our profit function then is P(q) = 13.5q - (3.65q + 3349) = 13.5q - 3.65q - 3349 = 9.85q - 3349.
Thus, to find the break-even point, we set profit = 0 and solve for q:
[tex]0=9.85q-3349\\3349=9.85q\\340=q[/tex]
In May the Smith family used 12567 litres of water, In June they used 452 litres and in July they used 15623. Write down the amount of water used for each month and round off each to the nearest 1000
The amount of water used for each month and rounded off to the nearest 1000 is;
May = 13,000 litersJune = 0 litersJuly = 16,000 litersWhat is the approximate amount of water used?Amount of water used in May = 12567 litres
Amount of water used in June = 452 litres
Amount of water used in July = 15623 liters
Approximate amount of water used in May to the nearest 1000 = 13,000 liters
Approximate amount of water used in June to the nearest 1000 = 0 liters
Approximate amount of water used in July to the nearest 1000 = 16,000 liters
Therefore, the amount of water used each month rounded to the nearest 1000 are 13,000, 0, and 16,000 respectively.
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8m
6m
10m
5m what is the area of this shape
Answer:
68 m²Step-by-step explanation:
we have two rectangles side by side, the larger one measures 8m by 6m, the smaller one 5m by 4m, the 4 meters is the difference between the base (10m) and the 6m side, so we find the areas and add them using the formula A = L x W, the result is not in the choices but it is right.
6 * 8 + 4 * 5 = remember PEMDAS
48 + 20 =
68 m²
A 80 kg monkey climbs a 15 meter tree in half a minute. What is the magnitude of power the monkey demonstrated?.
The demonstration of magnitude of power given by 80 kg monkey by climbing a 15 meter tree in half a minute is equal to option b. 392 J/S.
Weight 'm' of the monkey is equal to 80kilogram
Height 'h' of the tree is equal to 15 meter
Time 't' taken by monkey to climb a tree = half a minute
= 30 minutes
g = 9.8 m/s²
Magnitude of power = ( m × g × h )/ t
⇒ Magnitude of power = ( 80 × 9.8 × 15 )/ 30
⇒ Magnitude of power = 784 / 2
⇒ Magnitude of power = 392 J/S
Therefore, the magnitude of the power for the given weight , displacement and time is equal to option b. 392 J/S.
The above question is incomplete, the complete question is:
A 80 Kg monkey climbs a 15 meter tree in half a minute. What is the magnitude of power the monkey demonstrated?
a. 13.1 J/S
b. 392 J/S
c. 784 J/s
d. 11760 J/s
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