Answer:$1.33
Step-by-step explanation:
1 apple would cost 38 cents so 3 x .38 = 114 and half an apple is 19 cents so 114 plus 19 equals 133
3m-6n + 2m +4n
PLZZZZ HELPP
Answer:
5
−
2
Step-by-step explanation:
3
−
6
+
2
+
4
5
−
6
+
4
a team of 9 engineers must be split in three groups of 4, 3, and 2 engineers to complete different parts of a project. in how many ways can the team manager split the team considering that each engineer must be in exactly one team?
There are 1260 number of ways in which the team manager can split the team of 9 engineers into three groups of 4, 3, and 2 engineers respectively, with each engineer in exactly one team.
To determine the number of ways the team manager can split the team of 9 engineers into three groups of 4, 3, and 2 engineers respectively, we can use the concept of combinations.
The combination formula:
\(\[ C(n, r) = \frac{{n!}}{{r!(n-r)!}} \]\)
where n is the total number of engineers and r is the number of engineers to be selected
First, let's select the group of 4 engineers.
We need to choose 4 engineers out of the 9 available. The number of ways to do this can be calculated using the combination formula as:
\(\[C(9, 4) = \frac{{9!}}{{4!(9-4)!}}\)
\(= \frac{{9!}}{{4!5!}}\)
\(= \frac{{9 \times 8 \times 7 \times 6}}{{4 \times 3 \times 2 \times 1}}\)
= 126
So, there are 126 ways to select a group of 4 engineers from the team of 9.
Next, let's select the group of 3 engineers.
We need to choose 3 engineers from the remaining 5. Using the combination formula again, we have:
\(\[ C(5, 3) = \frac{{5!}}{{3!(5-3)!}} \\\)
\(= \frac{{5!}}{{3!2!}} \\\)
\(= \frac{{5 \cdot 4}}{{2 \cdot 1}}\)
= 10
There are 10 ways to select a group of 3 engineers from the remaining 5.
Finally, we assign the remaining 2 engineers to the last group.
To obtain the total number of ways the team manager can split the team, we multiply the number of ways for each step:
Total ways = 126 * 10 * 1
= 1260
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what is 36.12 divided by 0.42 show your work
Answer: 86
Step-by-step explanation:
calculator but..
\(\frac{36.12}{0.42}\) just convert them into whole numbers and after finding the value put the same number of spaces in the decimal behind it. Did that make sense?
PLS HWELPPP ILL GIVE BRAINLIEST + EXTRA POINTS
Answer:
container y can hold 12.56 more salt
Step-by-step explanation:pls brainlist
Which expressions are equivalent to 5^12*5^8?
Choose 2 answers:
\( {5}^{12} \times {5}^{8} \\ = {5}^{12 + 8} \\ = {5}^{20} \)
Therefore,
\( a) \: {25}^{20} ≠ {5}^{20} \)
\(b) ({25}^{5} ) ^{4} \\ = {25}^{5 \times 4} \\ = {25}^{20} \\ ( {25}^{5} )^{4} ≠ {5}^{20} \)
\(c) \: ( {5}^{3} . {5}^{2} ) ^{4} \\ = ({5}^{3 + 2}) ^{4} \\ = ({5}^{5} )^{4} \\ = {5}^{20} \)
\(d) \: {(5 ^{5}) }^{4} \\ = {5}^{5 \times 4} \\ = {5}^{20} \)
Answers:
\(c)( {5}^{3} . {5}^{2} {)}^{4} \\ d) {(5}^{5} ) ^{4} \)
Hope you could understand.
If you have any query, feel free to ask.
Complete to get an equal ratio
3x/y = ? /2y
Answer:
6x
Step-by-step explanation:
3x/y=x/2y
Since 2y is 2X greater than y, 6x is 2X greater than 3x.
So,
The answer is 6x.
A sample of 11 individuals shows the following monthly incomes. Which of the following is the least representative measure of the "central value" for this data set? Mean Median Mode Range
The least representative measure of the "central value" for this data set include the following: D. range.
What is a median?In Mathematics and Geometry, a median simply refers to the middle number (center) of a sorted data set, which is when the data set is either arranged in a descending order from the greatest to least or an ascending order the least to greatest;
Median = 3,000.
In Mathematics and Statistics, the range of a data set can be calculated by using this mathematical expression;
Range = Highest number - Lowest number
Range = 43,000 - 1,500
Range = 41,500.
Mode of data set = 4,000.
Mean of data set = 6545.5.
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Missing information:
The question is incomplete and the complete question is shown in the attached picture.
Use the Alternating Series Test to determine whether the alternating series converges or diverges. 00 k5 Σ(* + 1 (-1)k+1 3k5 + 2 k = 1 Identify an Evaluate the following limit. lim an n00 Since lim a ? O and ? van for all n, --Select--- n + 1 n n00
The limit of the sequence is:
lim an= lim (-1)
k+1 . 3= 3 or -3 (depending on the parity of n)
we use the Alternating Series Test to find the limit of the given sequence. We have already shown that the series ∑ an converges. Therefore, by the Alternating Series Test, we have: lim an= 0
Alternating Series Test states that, if a series is an alternating series, meaning the series has alternating positive and negative terms and the terms decrease in size, then the series converges. If the series has terms that increase in size, then the series diverges.
Therefore, the given series is an alternating series.
Thus, the given series converges.
Let's find out the limit:
Given
an = (3k5 + 2)/k5
The degree of the numerator is 5 and the degree of the denominator is also 5.
Therefore, by using the limit comparison test, we can find the limit of the given sequence.
lim an = lim (3k5 + 2) / k5
= lim 3 + 2/k5
Since lim k → ∞
(2/k5) = 0,
lim k → ∞ an = 3.
Therefore, the required limit is 3.
Alternating Series Test: Alternating Series Test states that, if a series is an alternating series, meaning the series has alternating positive and negative terms and the terms decrease in size, then the series converges. If the series has terms that increase in size, then the series diverges.
Therefore, the given series is an alternating series. Thus, the given series converges.
Identify an Evaluate the following limit:Let's find out the limit:
Given an = (3k5 + 2)/k5
The degree of the numerator is 5 and the degree of the denominator is also 5.
Therefore, by using the limit comparison test, we can find the limit of the given sequence.
lim an
= lim (3k5 + 2) / k5
= lim 3 + 2/k5
Since lim k → ∞
(2/k5) = 0,
lim k → ∞
an = 3.
Therefore, the required limit is 3.
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Given the points (2, 2) and (-1, -7) find the slope.
Slope is change in y over the change in x.
Slope = (-7 - 2) / (-1 -2)
Slope = -9/-3
Slope = 3
What is the slope of the line that passes through the points (-2, 1) and (5, 7)?
Answer:
The slope is 6/7
Step-by-step explanation:
The slope is equal to (y₂ - y₁)/(x₂ - x₁)
Point 1 is (-2,1)
Point 2 is (5,7)
((7) - (1))/((5) - (-2))
(7 - 1)/(5 + 2)
6/7
The slope is 6/7
What is the value of x in this equation? 5x − 2(2x − 1) = 6
Answer:
x=4
Step-by-step explanation:
first you would factor the -2(2x-1). -2x2x= -4x, -2x-1= 2
the equation would then be 5x-4x+2=6
add the x's together which turns the equation to 1x+2=6
minus 2 from both sides of the equation which gives you x=4
The required value of x would be 4 in the given equation 5x − 2(2x − 1) = 6.
What is the equation?The equation is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are equal.
What are Arithmetic operations?Arithmetic operations can also be specified by adding, subtracting, dividing, and multiplying built-in functions.
* Multiplication operation: Multiplies values on either side of the operator
For example 4*2 = 8
We have to determine the value of x in the equation
Given that the equations as :
⇒ 5x − 2(2x − 1) = 6
Open the parentheses and apply the multiplicative property,
⇒ 5x - 4x + 2 = 6
Apply the subtraction operation in the terms of x
⇒ x + 2 = 6
⇒ x = 6 - 2
⇒ x = 4
Therefore, the required value of x would be 4 in the equation
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I need the answer fast please
Answer:
H is the answer
Step-by-step explanation:
James Bond is rappelling down a cliff face to infiltrate an enemy base, but there is a gust of wind, and he starts swinging side to side. If he makes a 45 m pendulum once you factor in the length of the rope, how long does it take for him to complete a full oscillation? He'll need to know this so that he can time his distraction of the guards
Answer:
13.46 s
Step-by-step explanation:
The time it takes James Bond to complete one full oscillation is the period of a pendulum of length, l which is, T = 2π√(l/g) where l = length of pendulum = length of rope = 45 m and g = acceleration due to gravity = 9.8m/s²
So, substituting the values of the variables into the equation, we have
T = 2π√(l/g)
= 2π√(45 m/9.8m/s²)
= 2π√(4.592s²)
= 2π × 2.143
= 13.46 s
So, it takes 13.46 s for him to complete one full oscillation.
The product of (5+3√2) (5-3√2) is
Answer:
7
Step-by-step explanation:
First use the (a-b) and (a+b) = a^2 - b^2 which is equal to 25 - 9 x 2
then you multiply 9 x 2 which is 18 so 25 - 18 thus 7. The trick is to remember the rules.
PLEASE HELP ME!! The 7th grade has already saved $60 for a field trip to Hershey Park. They need to raise at least$720 in order to pay for the trip. They decide to sell T-shirts to raise money. They earn $12toward the trip for every T-shirt they sell.Write the inequality that represents this situationHow many T-shirts must they sell to eam at least $720? Show how you determined your answer
We have to calculate how many T-shirts the hay to sell in order to raise $720, including the $60 dollars they already saved.
They earn $12 for every T-shirt, so the amount of money raised is 12x, being x the number of T-shirts.
Then, 12x has to be at least equal to 720-60=660:
\(12x\ge660\)Then, if we divide both sides by 12, we get the number of T-shirts they have to sell:
\(\begin{gathered} 12x\ge660 \\ \frac{12}{12}x\ge\frac{660}{12} \\ x\ge55 \end{gathered}\)They have to sell at least 55 T-shirts.
Simplify the expression:
-7 + m – 3s +5 - 5m
Answer:
Concept: Algebraic Function
Combine all like terms -2-3s-4mAnswer:
-4m-3s-2
Step-by-step explanation:
what is the equation of a line parallel to y=3x-2 and goes through the point (-1,1)
Answer:
y = 3 x − 29
Step-by-step explanation:
First, let's find the slope of the line
y = 3 x + 2
As the equation is already in slope-intercept form
y = m x + c
Slope = 3
Let a point ( x , y ) be on the new line.
By finding the slope again,
y − 1 x − 10 = 3
y − 1 = 3 ( x − 10 )
y − 1 = 3 x − 30
Which can then be converted to different forms:
Standard form:
3 x − y = 29
Equation form:
3 x − y−29 = 0
Slope-intercept form:
y = 3 x − 29
graph{3x-y=29 [-32.3, 47.7, -34.1, 5.9]}
Which expression does not represent "the sum of n and 6"?
On+6
06 n
06+n
The expression that does not represent "the sum of n and 6" is 06+n. The expression On+6 and 06 n are equivalent to n+6, which represents the sum of n and 6.
To understand why 06+n does not represent the sum of n and 6, it's important to recognize that mathematical expressions follow certain conventions. In this case, the order of the terms matters. The expression 06+n implies that the number 6 is being added to n, whereas the expression "the sum of n and 6" implies that n is being added to 6. Therefore, 06+n does not represent the sum of n and 6.
It's worth noting that the expression 06+n could still represent a mathematical equation or relationship, but it does not accurately represent "the sum of n and 6". When working with mathematical expressions, it's important to pay attention to the order of the terms and the intended meaning of the expression to ensure accurate communication and calculation.
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What is the solution of the system of equations below?
x + 3y = 7
2x - y = 7
Answer:
y = 1
x = 4
Step-by-step explanation:
x + 3y = 7 → ( 1 )
2x - y = 7 → ( 2 )
First, let us make x the subject in equation ( 1 ).
x = 7 - 3y → ( 3 )
Let us find the value of y.
For that let us take equation (1) & replace x with ( 7 - 3y ).
2x - y = 7
2 ( 7 - 3y ) - y = 7
Solve the brackets.
14 - 6y - y = 7
Combine like terms.
14 - 7y = 7
Subtract 14 from both sides.
-7y = 7 - 14
-7y = -7
Divide both sides by -7.
y = 1
Let us find value of x
For that let us take equation (3) & replace y with 1.
x = 7 - 3y
x = 7 - 3 × 1
x = 7 - 3
x = 4
Which of the following lists of ordered pairs is a function? A. (2,5), (3, 6), (6, 9) B. (-1,2), (2, 3), (3, 1), (2,5) C. (1,2), (4,0), (3,5),(4,3) D. (2,5), (3, 6), (2, 1)
Answer:
A. (2,5), (3,6), (6,9)
Step-by-step explanation:
In order to be a function, all inputs (x values) must go to only one output (y value). List A is the only list that obeys this rule. Therefore, List A is a function.
Claire keeps track of the miles per gallon her car gets per week. She has accumulated the following data: (1, 22.42), (2, 22.84), (3, 23.26), (4, 23.68) What is the common difference or ratio
The common difference is 0.42. The comparison of each ratio's successive values over time for a single firm.
Now, According to the question:
What is meant by ratio?
When expressed in numbers or amounts, a ratio is a relationship between two things. For example, if a room contains ten boys and thirty girls, the boy-to-girl ratio is 1:3, or one to three.A ratio, or getting rationed, on the occurs when replies to a tweet vastly outnumber likes or retweets. This means that people are reacting negatively to the tweet's content.It usually means that your comment has received more replies than likes. This implies that there are more people who disagree with your comment than agree with it.Therefore, simplifying the equation then we get,
if you take the ranges (y) and subtract one from the other you get 0.42.
(22.84 - 22.42)/(2 - 1) = 0.42/1 = 0.42
(23.26 - 22.84)/(3 - 2) = 0.42
(23.68 - 23.26)/(4 - 3) = 0.42
Hence, The common difference is 0.42
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"Twelve minus the product of ten and a number is the same as two multiplied by the difference of twice that
number and one"
Answer:
answer:1) 2) 3) 4)
Step-by-step explanation:
Write the expressions "Four times the difference of a number and 7 is 32", "One third of a number is 12 less than the number itself", "Ten increased by the quotient of a number and 2 is -15", and "One less than the product of a number and 3 is 5 more than the number itself".
2
SEE ANSWERS
Answer
4
calculista
Genius
19K answers
423.1M people helped
Part 1) "Four times the difference of a number and is "
Let
x--------> the number
we know that
the expressions is equal to
therefore
the answer part 1) is
Part 2) "One third of a number is less than the number itself"
Let
x--------> the number
we know that
the expressions is equal to
therefore
the answer part 2) is
Part 3) "Ten increased by the quotient of a number and is "
Let
x---------> the number
we know that
the expressions is equal to
therefore
the answer Part 3) is
Part 4) "One less than the product of a number and is more than the number itself"
Let
x---------> the number
we know that
the expressions is equal to
therefore
the answer Part 4) is
cliffffy4h and 4 more users found this answer helpful
THANKS
4
0.0
(0 votes)
Answer
3.0/5
4
tardymanchester
Ambitious
1K answers
4.6M people helped
Answer:
1)
2)
3)
4)
Step-by-step explanation:
Given : Expressions in words.
To find : The expressions value?
Solution :
Let x be the number,
According to question,
1) "Four times the difference of a number and 7 is 32"
2) "One third of a number is 12 less than the number itself"
3) "Ten increased by the quotient of a number and 2 is -15"
4) "One less than the product of a number and 3 is 5 more than the number itself"
Tommy kicks a ball with a speod of 12 m/s at an angle of 25% to the horizontal. seconds of flight, the ball strikes Mr. Lowno's descending? Assume the value of g=9.8 m/s
2
The time of flight for the ball kicked by Tommy with an initial speed of 12 m/s at an angle of 25 degrees to the horizontal is approximately 2.18 seconds.
To determine the time of flight for the ball and whether it strikes Mr. Lowno's descending, we need to analyze the motion of the ball in projectile motion. Projectile motion refers to the motion of an object that is launched into the air and experiences both horizontal and vertical components of motion.
Given:
Initial speed (velocity) of the ball, V₀ = 12 m/s
Launch angle, θ = 25 degrees
Acceleration due to gravity, g = 9.8 m/s²
First, we need to split the initial velocity into its horizontal and vertical components. The horizontal component (Vx) remains constant throughout the motion and is given by:
Vx = V₀ * cos(θ)
The vertical component (Vy) changes due to the effect of gravity and can be calculated as:
Vy = V₀ * sin(θ)
Now, we can determine the time of flight (t) for the ball. The time it takes for the ball to reach its maximum height is equal to the time it takes to fall back down. Since the vertical motion is symmetrical, we can use the following equation to find the time of flight:
t = (2 * Vy) / g
Substituting the values:
t = (2 * 12 * sin(25°)) / 9.8
Calculating this, we find that the time of flight is approximately 2.18 seconds.
To determine if the ball strikes Mr. Lowno's descending, we need additional information such as Mr. Lowno's position or the height at which the ball was launched. Without this information, we cannot definitively state whether the ball strikes Mr. Lowno's descending. The time of flight only provides us with the duration of the ball's motion.
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a research institute poll asked respondents if they felt vulnerable to identify theft. n the poll n=1100 and x=542 who said yes use 90% confidence level find the best point estimate of the population proportion p
We are told tha our sample consists of n=1100 polls, out if which 542 said yes.
The 90% confidence level is not used to calculate the point estimate of the population proportion p.
The best point estimate of the population proportion p is obtained by simply calculating the the proportion among the sample. That is
\(p^{\prime}=\frac{x}{n}=\frac{542}{1100}=0.492727272\)which rounded to three decimal places is
\(p^{\prime}\approx0.493\)The manager of a small company that produces roof tile has determined that the total cost in dollars, C(x), of producing × units of tile is given by C(x) = 220x + 200, while the revenue in dollars, R(x), from the sale of x units of tile is given by
R(x) = 230x. Find the break-even point and the cost and revenue at the break-even point.
The break-even point is 20 units.
The cost and revenue at the break-even point is $4600.
How to find the break-even point and the cost and revenue at the break-even point?The break-even point is the point at which the cost and revenue are equal. Thus, we can say:
R(x) = C(x)
230x = 220x + 200
230x - 220x = 200
10x = 200
x = 200/10
x = 20
Thus, the break-even point is 20 units
cost and revenue at the break-even point:
Put x = 20 into the C(x) and R(x) respectively
C(x) = 220x + 200
C(20) = 220(20) + 200
C(20) = $4600
R(x) = 230x
R(20) = 230 * 20
R(20) = $4600
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There’s 29 coupons. The workers want to put an equal amount of the remaining coupons in each of the apple bags. how many coupons can they put in each bag?
The amount of coupons for each bag is 3 coupons.
How to calculate number of coupons?To determine the number of coupons that can be put in each bag, first calculate the total number of apples in both types of bags.
Bag type A - 10 apples per bag x 30 bags = 300 apples
Bag type B - 25 apples per bag x 10 bags = 250 apples
The total number of apples is 300 + 250 = 550 apples.
Next, we need to find the total number of workers involved in putting coupons in the bags.
5 workers + 3 workers = 8 workers
Finally, we can divide the total number of coupons by the total number of workers to find the number of coupons each worker will put in each bag.
29 coupons / 8 workers = 3.63 coupons/worker
Since the workers are trying to put an equal number of coupons in each bag, they will round down to the nearest whole number, which is 3 coupons/worker.
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How would two hundred billion, two hundred four million, twelve thousand, eight hundred thirteen be written in standard form?
construct a box plot from the given data. scores on a statistics test: 90,49,68,71,91,59,58,52,49,47
Answer: To construct a box plot from the given data, we need to first find the minimum, first quartile (Q1), median (Q2), third quartile (Q3), and maximum values.
The minimum value is 47.
To find the quartiles, we first need to put the data in order from smallest to largest:
47, 49, 49, 52, 58, 59, 68, 71, 90, 91
There are 10 data points, so the median (Q2) is the average of the fifth and sixth values:
Q2 = (58 + 59)/2 = 58.5
To find Q1 and Q3, we need to find the medians of the lower and upper halves of the data, respectively. The lower half of the data is:
47, 49, 49, 52, 58
So the median (Q1) of this half is:
Q1 = (49 + 49)/2 = 49
The upper half of the data is:
68, 71, 90, 91
So the median (Q3) of this half is:
Q3 = (71 + 90)/2 = 80.5
Now that we have found the minimum, Q1, Q2, Q3, and maximum values, we can construct the box plot:
| *
| * |
|-----|-----|-----|-----|-----|-----
40 50 60 70 80 90 100
The line inside the box represents the median (Q2), the box goes from Q1 to Q3, and the whiskers extend from the box to the minimum and maximum values. The asterisk (*) represents an outlier, which is any data point more than 1.5 times the interquartile range (IQR) away from the nearest quartile. In this case, there are no outliers.
Step-by-step explanation:
Consider the Autoregressive model AR(1) below 1.05+0.9Y+&+1, t=0,1,..., where E1, E2... are independent normal random variables with mean 0 and variance 0.01, (a) Compute the unconditional mean E(Y) a
The unconditional mean E(Y) of the autoregressive model AR(1) is 10.5.
To compute the unconditional mean E(Y) of the autoregressive model AR(1) given by 1.05 + 0.9Y + ε, we can use the property of linearity in expectation and solve for the mean value.
The model can be rewritten as:
Y = (1.05 + ε) / (1 - 0.9)
Since ε follows a normal distribution with mean 0 and variance 0.01, we know that E(ε) = 0.
Using the linearity of expectation, we can compute the unconditional mean E(Y) as follows:
E(Y) = E((1.05 + ε) / (1 - 0.9))
= (1.05 + E(ε)) / (1 - 0.9)
= 1.05 / (1 - 0.9)
= 1.05 / 0.1
= 10.5
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Find the sum of the arithmetic series given a1
12, d = 4, and n = 30.
A. 8434
B. 4200
C.4216
D. 2100
Answer:
D
Step-by-step explanation:
The sum to n terms of an arithmetic series is
\(S_{n}\) = \(\frac{n}{2}\) [ 2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
Here a₁ = 12, d = 4 and n = 30 , then
\(S_{30}\) = \(\frac{30}{2}\) [ (2 × 12) + (29 × 4) ]
= 15(24 + 116)
= 15 × 140
= 2100 → D
The sum of the arithmetic series given a₁ =12, d = 4, and n = 30 is 2100, therefore the correct answer is D.
What is the Sum of arithmetic series?The sum of n terms of an arithmetic series can be easily found using a simple formula which says that, if we have an arithmetic series whose first term is a and the common difference is d, then the formula of the sum of n terms of the arithmetic series is as follows
Sn = n/2 [2a₁ + (n-1)d].
as given in the problem
a₁ =12, d = 4, and n = 30
Sn = 30/2 [2×12 + (30-1)×4]
= 2100
The sum of the arithmetic series given a₁ =12, d = 4, and n = 30 is 2100.
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