(a) The number of pounds of flour Manuel got per dollar is 2.167.
(b) The number of miles Rachel runs per minute is 0.105.
It is given that Manuel bought 26 pounds of flour for $12. We need to find the pounds of flour he got per dollar. We simply need to find the ratio by using division on the two quantities. The number of pounds of flour he got per dollar is 26/12 = 2.167. It is given that Rachel runs 11 miles in 105 minutes. We need to find the number of miles she runs per minute. We simply need to find the ratio by using division on the two quantities. The number of miles Rachel runs per minute is 11/105 = 0.105.
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Find the greatest common factor of - 24m3 n 3 + 32m3 n 3 x – 18m2 x 2 n 3
Answer: 3
2
3
3
+
2
4
3
3
−
3
6
2
3
Step-by-step explanation: my diclk
Answer: 2m^2n^3
Step-by-step explanation:
I'm assuming this is the expression:
\(-\:24m^3n^3\:+\:32m^3\:n^3x\:-\:18m^2\:x^2n^3\)
Factor 24m^3n^3 by separating all terms (use 2's and 3's as all terms are divisible by them):
\(2\cdot \:2\cdot \:2\cdot \:3\cdot \:m\cdot \:m\cdot \:m\cdot \:n\cdot \:n\cdot \:n\)
Factor 32m^3n^3x:
\(2\cdot \:2\cdot \:2\cdot \:2\cdot \:2\cdot \:m\cdot \:m\cdot \:m\cdot \:n\cdot \:n\cdot \:n\cdot \:x\)
Factor 18m^2x^2n^3:
\(2\cdot \:3\cdot \:3\cdot \:m\cdot \:m\cdot \:n\cdot \:n\cdot \:n\cdot \:x\cdot \:x\)
Common factor (terms that are present in all factored expressions):
\(2\cdot \:m\cdot \:m\cdot \:n\cdot \:n\cdot \:n\)
Simplify to:
\(2m^2n^3\)
A statistician read that 77% of the population opposes replacing $1 bills. He thought that was a high percentage so 80 individuals were interviewed and it
was found 55 were opposed to replacing the bills. Test the hypothesis at the 5% level.
Find the critical value.
Find the test statistic
Find the p value
The test statistic is -1.75, the critical value is 0.1, and the p value is 0.401.
\(H_{o}\)= p=.77 (p>or=.77) claim
\(H_{a}\)= p < .77
success = 55
observed =80
p = 0.6875
z-stat = -1.753
p = 0.0398
a = .01
Level = p() .05
stat calc normal plug in = -2.326
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Which of the following is the solution to the following system of inequalities?Let the green region represent the answer region.x+2y <=43x - y< =2
B
1) The way we're going to tackle this question is at first treating each inequality as an equation. So let's pick the first inequality, rewrite it as an equation set a t-table, and then trace a line.
2)
I) x+2y≤4
Rewriting it as a slope-intercept equation we get:
\(x+2y=4\Leftrightarrow2y=4-x,\mathbf{y=2-\frac{x}{2}}\)Setting a t-table:
So we'll plot the following points: (-2,3), (-1, 2.5), (0, 2), (1, 1.5), (2, 1)
Similarly, we can do the same with the 2nd inequality:
3x-y≤2
\(\begin{gathered} 3x-y=2 \\ -y=2-3x \\ y=3x+2 \end{gathered}\)Now, the t-table:
So the points we're going to use are: (-2,-4), (-1,-1), (0,2), (1,5), (2,8)
3) Now, let's treat them back as inequalities and plot them the solution will be on the darkest region, where the two regions overlap:
Examining the options, we can state the answer is: B
The population of a city in 2000 was 500,000 while the population of the suburbs of that city in 2000 was 700,000. Suppose that demographic studies show that each year about 6% of the city's population moves to the suburbs (and 94% stays in the city), while 2% of the suburban population moves to the city (and 98% remains in the suburbs). Compute the population of the city and of the suburbs in the year 2002. For simplicity, ignore other influences on the population such as births, deaths, and migration into and out of the city/suburban region.
Answer:
The population of the city in 2002 is 469,280 while the population of the suburb is 730,720.
Step-by-step explanation:
6% of the city's population moves to the suburbs (and 94% stays in the city).2% of the suburban population moves to the city (and 98% remains in the suburbs).The migration matrix is given as:
\(A= \left \begin{array}{cc} \\ C \\S \end{array} \right\left[ \begin{array}{cc} C&S\\ 0.94&0.06 \\0.02&0.98 \end{array} \right]\)
The population in the year 2000 (initial state) is given as:
\(\left[ \begin{array}{cc} C&S\\ 500,000&700,000 \end{array} \right]\)
Therefore, the population of the city and the suburb in 2002 (two years after) is:
\(S_0A^2=\left \begin{array}{cc} [500,000&700,000]\\& \end{array} \right\left \begin{array}{cc} \end{array} \right\left[ \begin{array}{cc} 0.94&0.06 \\0.02&0.98 \end{array} \right]^2\)
\(A^{2} = \left[ \begin{array}{cc} 0.8848 & 0.1152 \\\\ 0.0384 & 0.9616 \end{array} \right]\)
Therefore:
\(S_0A^2=\left \begin{array}{cc} [500,000&700,000]\\& \end{array} \right\left \begin{array}{cc} \end{array} \right \left[ \begin{array}{cc} 0.8848 & 0.1152 \\ 0.0384 & 0.9616 \end{array} \right]\\\\=\left[ \begin{array}{cc} 500,000*0.8848+700,000*0.0384& 500,000*0.1152 +700,000*0.9616 \end{array} \right]\\\\=\left[ \begin{array}{cc} 469280& 730720 \end{array} \right]\)
Therefore, the population of the city in 2002 is 469,280 while the population of the suburb is 730,720.
The population of the city in 2002 is 442,080 while the population of the suburb is 674,080.
The populations are given as:
\(\mathbf{P_c = 500000}\) --- the population of the city in 2000
\(\mathbf{P_s = 700000}\) --- the population of the suburbs of the city in 2000
For the city, we have:
94% stays, while 6% moves out
For the suburbs, we have:
98% stays, while 2% moves out
Population is calculated using:
\(\mathbf{P =P_o r^t}\)
Where:
Po represents the initial populationr represents ratet represents timeThe population of the city is:
Population = Population that stays in the city in 2 years + Population that enters from the suburbs in 2 years
So, we have:
\(\mathbf{P = 500000 \times (94\%)^2 + 700000 \times (2\%)^2}\)
\(\mathbf{P = 442080}\)
The population of the suburb is:
Population = Population that stays in the suburb in 2 years + Population that enters from the city in 2 years
So, we have:
\(\mathbf{P = 700000 \times (98\%)^2+ 500000 \times (6\%)^2 }\)
\(\mathbf{P = 674080}\)
Hence, the population of the city in 2002 is 442,080 while the population of the suburb is 674,080.
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Find the perimeter of the figure. If you need to use in your computation, approximate its value as 3.14.
Rectangle topped by a semicircle
10 m
a. 35.57 m
b.
65.40 m
C.
59.70 m.
d. 49.70 m
The total perimeter of the given composite figure is; 74.55 meters
How to find the perimeter of a composite figure?The perimeter of the given figure can be calculated by dividing the figure into two parts : One is semi-circle and second is rectangle.
To find Perimeter of rectangle :
Length of the rectangle = 18 m
Width of the rectangle = 15 m
Perimeter = (2 × Length) + Width
Perimeter = (2 × 18) + 15
Perimeter = 36 + 15
Perimeter = 51 meters
To find perimeter of semi-circle :
Radius of semi-circle = 15/2 = 7.5 m
Perimeter of semi-circle = π × radius
Perimeter = 3.14 × 7.5
Perimeter = 23.55 meter
So, Total Perimeter of the figure = 51 + 23.55
= 74.55 meter
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The units of an item available for sale during the year were as follows: Jan. 1 Inventory 50 units at $124 Mar. 10 Purchase 60 units at $132 Aug. 30 Purchase 20 units at $138 Dec. 12 Purchase 70 units at $142 There are 80 units of the item in the physical inventory at December 31. The periodic inventory system is used. Determine the ending inventory cost and the cost of goods sold by three methods. Round interim calculations to one decimal and final answers to the nearest whole dollar. blank Cost of Ending Inventory and Cost of Goods Sold Inventory Method Ending Inventory Cost of Goods Sold First-in, first-out (FIFO) $fill in the blank 1 $fill in the blank 2 Last-in, first-out (LIFO) fill in the blank 3 fill in the blank 4 Weighted average cost fill in the blank 5 fill in the blank 6
Ending Inventory Cost and Cost of Goods Sold using different inventory methods:
FIFO Method:
Ending Inventory Cost: $11,920
Cost of Goods Sold: $15,068
LIFO Method:
Ending Inventory Cost: $11,996
Cost of Goods Sold: $15,123
Weighted Average Cost Method:
Ending Inventory Cost: $11,974
Cost of Goods Sold: $15,087
Using the FIFO (First-In, First-Out) method, the cost of the ending inventory is determined by assuming that the oldest units (those acquired first) are sold last. In this case, the cost of the ending inventory is calculated by taking the cost of the most recent purchases (70 units at $142 per unit) plus the cost of the remaining 10 units from the March 10 purchase.
This totals to $11,920. The cost of goods sold is calculated by taking the cost of the units sold (50 units from the Jan. 1 inventory at $124 per unit, 60 units from the March 10 purchase at $132 per unit, and 20 units from the August 30 purchase at $138 per unit), which totals to $15,068.
Using the LIFO (Last-In, First-Out) method, the cost of the ending inventory is determined by assuming that the most recent units (those acquired last) are sold first. In this case, the cost of the ending inventory is calculated by taking the cost of the remaining 10 units from the December 12 purchase, which amounts to $1,420, plus the cost of the 70 units from the August 30 purchase, which amounts to $10,576.
This totals to $11,996. The cost of goods sold is calculated by taking the cost of the units sold (50 units from the Jan. 1 inventory, 60 units from the March 10 purchase, and 20 units from the August 30 purchase), which totals to $15,123.
Using the Weighted Average Cost method, the cost of the ending inventory is determined by calculating the weighted average cost per unit based on all the purchases. In this case, the total cost of all the purchases is $46,360, and the total number of units is 200.
Therefore, the weighted average cost per unit is $231.80. Multiplying this by the 80 units in the physical inventory at December 31 gives a total cost of $11,974 for the ending inventory. The cost of goods sold is calculated by taking the cost of the units sold (50 units from the Jan. 1 inventory, 60 units from the March 10 purchase, and 20 units from the August 30 purchase), which totals to $15,087.
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Find an nth-degree polynomial function with real coefficients satisfying the given conditin=3;3 and 5 i are zeros;f(1) = -52
Given:
3 and 5i are the roots of the equation.
It is given that n=3 .
Let assume the third root be the conjugate of complex root that is -5i
Then the polynomial function :
\(f(x)=(x-3)(x-5i)(x+5i)\)\(f(x)=(x-3)(x^2+25)\)\(f(x)=x^3+25x-3x^2-75\)\(f(x)=x^3-3x^2+25x-75\)\(\text{The polynomial function be }f(x)=x^3-3x^2+25x-75\)Given that f(1)= -52,
\(f(1)=1-3+25-75\)\(f(1)=-52\)What is 10000 + 129000
Answer:
the answer would be 139000
Answer:139000
Step-by-step explanation:
The function y=30x represents the distance in miles, y, a car travels after x hours.
Answer:
first option
Step-by-step explanation:
Answer:
A. The total distance the car travels in miles between hours 3 and 7.
Step-by-step explanation:
I took the test!
What is the GCF of the expression 5x2y + 10xy2?
Answer:
\(5xy\)
Step-by-step explanation:
\(\mathrm{Factor\:}:5x^2y\)
\(5\cdot \:x\cdot \:x\cdot \:y\)
\(\mathrm{Factor\:}:10xy^2\)
\(2\cdot \:5\cdot \:x\cdot \:y\cdot \:y\)
Common factor:-
\(5\cdot \:x\cdot \:y\)
OAmalOHopeO
Joanna has 3/4 of a gallon of milk left that has an expiration date in 6 days. If she splits the milk equally among her next 6 bowls of cereal. How much milk will she use in each bowl?
Answer:
Ahaha idek
Step-by-step explanation:
HELP!
Students in Mrs. Barnes’s class determined the probability that she will check homework on a randomly chosen day is 0.42. They also determined the probability that she will give a pop quiz when she checks homework is 0.6, and the probability that she will give a pop quiz when she does not check homework is 0.9. The probabilities are displayed in the tree diagram.
A tree diagram. Random day goes to checks homework and does not check homework. The arrow to checks homework is 0.42, and does not check homework is 0.58. Checks homework to pop quiz, 0.60; checks homework to no pop quiz, 0.40. Does not check homework to pop quiz, 0.90; does not check homework to no pop quiz, 0.10.
What is the probability that the students will have a pop quiz on a randomly selected day?
0.25
0.52
0.77
0.90
The probability that the students will have a pop quiz on a randomly selected day is 0.77, or 77%.
Describe Probability?Probability is a measure of the likelihood of an event occurring. In mathematics, probability is usually defined as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. For example, the probability of rolling a six on a fair six-sided die is 1/6, or approximately 0.167.
The concept of probability is used to describe random phenomena, such as the outcomes of a coin toss or the weather forecast. Probability theory provides a framework for calculating the probabilities of various events, based on certain assumptions and rules.
To find the probability that the students will have a pop quiz on a randomly selected day, we need to use the law of total probability and consider both cases: when Mrs. Barnes checks homework and when she does not check homework.
The probability of having a pop quiz on a randomly selected day can be calculated as:
P(pop quiz) = P(checks homework) * P(pop quiz | checks homework) + P(does not check homework) * P(pop quiz | does not check homework)
Substituting the given probabilities, we get:
P(pop quiz) = 0.42 * 0.6 + 0.58 * 0.9
P(pop quiz) = 0.252 + 0.522
P(pop quiz) = 0.774
Therefore, the probability that the students will have a pop quiz on a randomly selected day is 0.77, or 77%.
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NEED HELP QUICK!!! Ron is trying to find the LCM of 4 and 6. His work is shown at the right. What is Ron's mistake? Explain how to find the correct LCM of 4 and 6.
The LCM of 4 and 6 is 12.
What is Least Common Multiple?Least Common Multiple is a mathematical term. The smallest number that is a multiple of both of two numbers is called the least common multiple.
For example, common multiples of 4 and 6 are 12, 24 and 36, but the lowest of those is 12; therefore, the lowest common multiple of 4 and 6 is 12.
Given:
4: 2 x 2
6: 2 x 3
Now, as there is one 2 common in both then it will be written for one time.
and the rest uncommon numbers are written as same as well.
So, LCM( 4, 6)= 2 x 2 x 3 = 12
Hence, the LCM of 4 and 6 is 12.
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at a sporting event, you can buy 5 hot dogs and 2 drinks and spend $19. you could have also purchased 3 hot dogs and 4 drinks and sprnt $17. How much money did a hot dog cost? how much money did a drink cost?
What does the leading term of −5x^4+4x^3−6x^2+8 tell you?
Step-by-step explanation:
The leading term is -5x^4, which tells us the highest degree of the polynomial.
The leading term in the equation tells us about the degree and whether the curve opens outwards on inwards
What is an equation in one variable?
An equation is a polynomial in one variable with a finite degree
We are given an equation
\(-5x^4+4x^3-6x^2+8\)
In this the leading term is -5x^4
Here the coefficient is negative this tells us that the curve opens downwards. if the coefficient has been positive then the curve would open outwards.
Also from the leading term we can find out the degree of the highest variable. the degree of highest variable in this case is 4
Hence, The leading term in the equation tells us about the degree of the variable and whether the curve opens outwards on inwards
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2. Jacquelyn has 50 vocabulary words to study for an exam. She creates a flashcard for each word to study. Day 1 she studies 10 of the flash cards. Day 2 she studies the same 10 cards from the first day along with 5 new cards, for a total of 15 cards. Day 3 she studies the 15 cards she studied on the second day along with 5 new cards, for a total of 20 cards. Jacquelyn continues to increase the number of cards she studies each day by 5.
(a) Write a recursive rule to represent the number of cards Jacquelyn studies on day n.
(b) Write an explicit rule to represent the number of cards Jacquelyn studies on day n.
(c) On which day will Jacquelyn first study all 50 vocabulary cards?
Answer:
Sequence:
10, 15, 20, ...(a) Recursive formula:
a₁ = 10, aₙ = aₙ₋₁ + 5(b) Explicit rule:
aₙ = a₁ + (n - 1)*5 aₙ = 10 + 5n - 5 = 5n + 5aₙ = 5n + 5(c) aₙ = 50, n = ?
50 = 5n + 55n = 45n = 9Day 9
Which expression can be used to determine the reference angle for an angle, x, measuring 150°?
A 180-X
B X-180
C360-X
D X-360
Answer:
The expression that can be used to determine the reference angle for an angle, x, measuring 150° is A) 180 - X.
The reference angle is the acute angle between the terminal side of an angle and the x-axis in standard position. To find the reference angle for an angle greater than 90 degrees, we subtract the angle from 180 degrees.
In this case, the angle is x = 150 degrees. So, the reference angle would be:
180 - x = 180 - 150 = 30 degrees.
Therefore, the reference angle for an angle measuring 150 degrees is 30 degrees.
don't spam answer only if you know What is the measure of angle x? Enter your answer in the box
Answer:
The angle of x is 83°
Step-by-step explanation:
A straight line has a total of 180°. That means if you can figure out what the third angle on the bottom is (the one in the middle) you can add 41 to it and subtract that from 180. Since all the lines are straight you can say that the middle angle on the bottom is the same as the middle angle on the top. So:
180° - (41° + 56°) = 83°
Solve the trigonometric equation: 5sin theta+3=0 for values of theta from 0° to 360
Answer:
126.9° and 323.°1
Step-by-step explanation:
I'll use x instead of theta and you can replace it by theta
5 sin x + 3 = 0
5 sin x = - 3
Sin x = - 3/5
Key angle = sin¯¹ 3/5 = 36.8698
Sin negative, so we use the third and fourth quadrants
X = 90+36.8698, 360-36.8698
X = 126.8698, 323.1302
Theta = 126.9°, 323.°1
The is 3/8 as a decimal?
What is the domain of the function shown in the graph?
Answer:
its b
Step-by-step explanation:
Answer:
All Real Numbers (B)
Step-by-step explanation:
The line has arrows at each end meaning that they'll continue forever. Domain are the numbers for X. The answer would be B. If it were range it'd be y < 3.
For the following situation, find the mean and standard deviation of the population. List all samples (with replacement) of the given size from that population. Find the mean and
standard deviation of the sampling distribution and compare them with the mean and standard deviation of the population.
The number of DVDs rented by each of three families in the past month is 2, 11, and 5. Use a sample size of 2
The correct comparison of the population and sampling distribution is A. Means are the same but the standard deviation of sampling distribution is smaller
How to find the mean and standard deviationX X^2
95 9025
96 9216
98 9604
Sum = 289 27845
n 3
The sample mean 96.33333333 SUM/n
Population mean 96.33333333 SUM/n
Sample standard dev \(1.527525232 \sqrt{((1/(n-1))(SUM(X^2)-(1/n)SUM(X)^2)}\)
Population standard dev \(1.247219129 \sqrt{((1/n)(SUM(X^2)-(1/n)SUM(X)^2)}\)
Population Mean(μ) = 96.33
Population standard deviation (σ) = 1.25
Option A) 95,96,98 and X bar = 96.33
Sampling distribution :
mean (μx = μ) = 96.33
standard deviation(σx = σ/SQRT(n)) = 1.25/SQRT(3) = 0.72
Option A) Means are the same but the standard deviation of the sampling distribution is smaller
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Shameel has a flight to catch on Monday morning. His father will give him a ride to the airport. If it rains, the traffic will be bad and the probability that he will miss his flight is 0.06. If it doesn't rain, the probability that he will miss his flight is 0.01. The probability that it will rain on Monday is 0.30. Suppose that Shameel misses his flight. What is the probability that it was raining
Answer:
The probability that it was raining on Monday given that Shameel misses his flight is 0.5846.
Step-by-step explanation:
can someone pls help find x and y
Answer:
x = 9 & y = 29
Step-by-step explanation:
Since we know that 7x is next to 117, that area will be equal to 180*,
7x + 117 = 180
7x = 180-117
7x=63
x=9
to find y, you can use the same method, just by finding the other angle inside. 53+7(9) + z = 180
53+63 = 180
116+z = 180
z = 180-116
z = 64.
Then we do
4y + 64 = 180
4y = 180-64
4y=116
y = 29
Can some body check my math on this one(question #6) I think it’s n=26 am I right?
Answer:
\(n=26\)
Step-by-step explanation:
So we have the equation:
\(-413.4=-15.9n\)
To figure out the value of n, divide both sides by -15.9. The right will cancel. Thus:
\(n=(-413.4)/(-15.9)\)
Use a calculator:
\(n=26\)
So, the answer is 26.
So, yes, you are very correct!
Answer:
n=26
Step-by-step explanation:
We are given the equation:
\(-413.4=-15.9n\)
We want to solve for the unknown variable, which is n. Therefore, we must isolate n on one side of the equation.
n is being multiplied by -15.9. The inverse of multiplication is division. Divide both sides of the equation by -15.9
\(\frac{-413.4}{-15.9} =\frac{-15.9n}{-15.9}\)
\(\frac{-413.4}{-15.9}=n\)
\(26=n\)
Let's check our solution. Plug 26 in for n and solve.
\(-413.4=-15.9n\)
\(-413.4=-15.9(26)\)
Multiply -15.9 and 26.
\(-413.4=-413.4\)
This checks out, so we know our solution is correct.
The solution to this equation is n=26 and you are correct!
What is it? 1/2(4x + 8)
Answer: (2x+4)
Step-by-step explanation:
The term (4x+8) is in brackets. That means whatever you do to it will affect every term in the bracket.
This time, you are dividing by 2
Thus, (4x+8)/2 = 4x/2+8/2
=2x+4
Hope this helps! :)
8th grade math, please help.
I’ll give you brainliest if you want.
-Find the volume-
*links are reported*
Find a product of 3 2
\(\huge\text{Hey there!}\)
\(\huge\textsf{Guide to follow:}\)
\(\bullet\large\text{ Difference means to subtract}\\\bullet\large\text{ Product means to multiply}\\\bullet\large\text{ Quotient means to divide}\\\bullet\large\text{ Sum means to add}\)
\(\huge\textsf{Now that we have that information out the way,}\\\\\huge\textsf{we can answer your given equation.}\)
\(\huge\textsf{Question reads}\)
\(\star\large\text{ Find a product of 3 and 2}\)
\(\star\large\text{ Since, we are looking for the product of those two numbers (3 \& 2)}\\\large\text{we know that we have to \textsf{\underline{multiply}} them from each other. }\)
\(\huge\textsf{What should the equation look like?}\)
\(\large\text{3} \times \large\text{2}\)
\(\huge\textsf{What is the easiest way to solve for this equation?}\)
\(\large\text{3} \times \large\text{2}\\\rightarrow\large\text{3 + 3}\\\rightarrow\large\text{6}\)
\(\huge\text{Therefore your answer should be:}\)
\(\huge\text{The product of 3 and 2 is: \boxed{\mathsf{6}}}\huge\checkmark\)
\(\huge\text{Good luck on your assignment \& enjoy your day!}\)
please i’ll fail if i don’t get this right. please i’ll give brainlyist The current temperature of 15°F below zero is 18°F below the high temperature of the day. What is the high temperature for the
day?
OA. 5°F
ов. 33°F
OC. 3°F
OD. 33°F
Answer:
I think its C
Step-by-step explanation:
3
Which two equations represent the following statement?
28 is 12 less than k.
A
28 = K - 12
B
<
28 = 12 +K
с
K-12 = 28
D28 - k = 12