Answer:
so 3x_=12 3x4=12 2x4=8 8 bags of rice can be bought with $12
Step-by-step explanation:
Answer: 8 bags
Step-by-step explanation: 3*4=12 and 2*4=8
(a) If a particle moves along a straight line, what can you say about its acceleration vector?
o the acceleration vector has a magnitude of one
o the acceleration vector is parallel to the tangent vector
o the acceleration vector has a magnitude of zero
o the acceleration vector equals the velocity vector
o the acceleration vector is parallel to the unit normal vector
(b) If a particle moves with constant speed along a curve, what can you say about its acceleration vector?
o the acceleration vector has a magnitude of one
o the acceleration vector is parallel to the tangent vector
o the acceleration vector has a magnitude of zero
o the acceleration vector equals the velocity vector
o the acceleration vector is parallel to the unit normal vector
(a) If a particle moves along a straight line, the acceleration vector is parallel to the tangent vector.
It has a magnitude of zero.
(b) If a particle moves with constant speed along a curve, the acceleration vector is parallel to the unit normal vector.
It has a magnitude of zero since the velocity vector has a constant magnitude.
If a particle moves along a straight line, the acceleration vector is parallel to the tangent vector.
The acceleration vector has zero magnitude in this case and is always directed along the straight line.
A particle's acceleration vector is determined by the motion of the particle along a curve.
When a particle moves along a curve at a constant velocity, the acceleration vector is orthogonal to the velocity vector and has a magnitude of zero.
The particle moves in a straight line when its acceleration vector has zero magnitude, as in the first question about a particle moving along a straight line.
(a) If a particle moves along a straight line, the acceleration vector is parallel to the tangent vector.
It has a magnitude of zero.
(b) If a particle moves with constant speed along a curve, the acceleration vector is parallel to the unit normal vector.
It has a magnitude of zero since the velocity vector has a constant magnitude.
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Suppose set s1 is [1, 2, 5] and set s2 is [2, 3, 6]. After s1.addAll(s2), s1 is __________.
After set s1.addAll(s2), s1 is [1, 2, 5, 2, 3, 6].
After performing the operation s1.addAll(s2) on sets s1 [1, 2, 5] and s2 [2, 3, 6], the set s1 would become[1, 2, 5, 2, 3, 6].
To determine the value of s1, the following steps has to be taken:
1. Start with sets s1 [1, 2, 5] and s2 [2, 3, 6].
2. Apply the addAll operation with set s2: [2, 3, 6]
3. Add each element from set s2 to set s1, while avoiding duplicates (since sets cannot have duplicate elements).
4. Therefore, suppose if set s1 is [1, 2, 5] and set s2 is [2, 3, 6] then, after s1.addAll(s2), the set s1 becomes [1, 2, 5, 2, 3, 6].
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FSelect the correct answer. Consider these functions: f(x)=4x^3-10 g(x)=3x-4/2 What is the value of g(f(2))? A. -6 B. 2 C. 19 D. 31
Answer:
D. 31
Step-by-step explanation:
First we need to find what the value of f(2) is, so we are going to substitute x for 2 in f():
f(2)=4(2)^3-10
= 4(8)-10
= 32-10
= 22
And then we substitute 22 for x in g()
g(22)= (3(22)-4)/2
= (66 -4)/2
= 62/2
= 31
(a) What is the present value of $25,000 due 9 periods from now, discounted at 10%? (Round answer to 2 decimal places, e.g. 25.25.) Present value $ (b) What is the present value of $25,000 to be received at the end of each of 6 periods, discounted at 9%?
a) The present value of $25,000 due 9 periods from now, discounted at 10%, is approximately $10,593.22.
b) The present value of $25,000 to be received at the end of each of 6 periods, discounted at 9%, is approximately $22,935.35.
(a) Present Value of $25,000 due 9 periods from now, discounted at 10%:
To calculate the present value, we need to discount the future cash flow of $25,000 back to its current value using the given discount rate of 10%. The formula to calculate the present value is:
Present Value = Future Value / (1 + Discount Rate)ⁿ
Where:
Future Value is the amount to be received in the future ($25,000).
Discount Rate is the rate at which we discount the future cash flow (10%).
'n' is the number of periods or years until the future cash flow is received (9 periods in this case).
Let's plug in the values into the formula and calculate the present value:
Present Value = $25,000 / (1 + 0.10)⁹
Calculating the denominator:
(1 + 0.10)⁹ = 1.10⁹ ≈ 2.36
Present Value = $25,000 / 2.36 ≈ $10,593.22
(b) Present Value of $25,000 to be received at the end of each of 6 periods, discounted at 9%:
In this case, we have a cash flow of $25,000 to be received at the end of each of 6 periods, discounted at 9%. Let's calculate the present value:
Present Value = $25,000 / (1 + 0.09)¹ + $25,000 / (1 + 0.09)² + ... + $25,000 / (1 + 0.09)^6
Calculating each discount factor:
(1 + 0.09)¹ ≈ 1.09
(1 + 0.09)² ≈ 1.1881
(1 + 0.09)³ ≈ 1.2950
(1 + 0.09)⁴ ≈ 1.4116
(1 + 0.09)⁵ ≈ 1.5386
(1 + 0.09)⁶ ≈ 1.6765
Plugging in the values and summing them up:
Present Value = $25,000 / 1.09 + $25,000 / 1.1881 + $25,000 / 1.2950 + $25,000 / 1.4116 + $25,000 / 1.5386 + $25,000 / 1.6765
Present Value ≈ $22,935.35
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a study has two groups of subjects who receive different treatments but take the same posttreatment t test. what analytic statistic will be appropriate?
To compare the posttreatment t-test scores of two groups of subjects who received different treatments, the appropriate analytic statistic would be a two-sample t-test. An independent samples t-test would be appropriate for analyzing the data.
This test is used to determine whether there is a statistically significant difference between the means of two independent groups. The two-sample t-test assumes that the samples are independent, normally distributed, and have equal variances.
It calculates a t-statistic, which measures the difference between the sample means relative to the variation within the groups, and compares it to a t-distribution to determine the probability of observing such a difference by chance.If the probability is lower than a predetermined significance level (usually 0.05), then we reject the null hypothesis that the two group means are equal and conclude that there is a statistically significant difference between the treatments.
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HELP PLEASE!!!!
What are the leading coefficient and degree of the polynomial?
15v²-9v+8v+12v
Leading coefficient: ?
Degree: ?
write an equation in point-slope form of the line that passes through the point (4,−9) and has a slope of 6. PLEASE HELP I NEED HELP RN
Answer:
srry i couldnt answer earlier i didnt see yor question but here ye go Answer:
y + 9 = 6(x - 4)
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m = 6 and (a, b) = (4, - 9), thus
y - (- 9) = 6(x - 4), that is
y + 9 = 6(x - 4)
Find the volume v of the solid formed by rotating the region inside the first quadrant enclosed by y=x2 and y=5x; about the x-axis. v = ∫bah(x)dx where a= , b= , h(x)= . v=
The volume V of the solid is 500π/3 cubic units.
To find the volume V of the solid formed by rotating the region inside the first quadrant enclosed by y=x² and y=5x about the x-axis, we will use the disk method: V = ∫[πh(x)²]dx, where a and b are the limits of integration, and h(x) is the height of the solid at each x-value.
First, find the points of intersection between y=x² and y=5x by setting the two equations equal to each other: x² = 5x. Solve for x: x(x - 5) = 0, which gives x=0 and x=5. These are our limits of integration, a=0 and b=5.
Next, find the height h(x) at each x-value by subtracting the two functions: h(x) = 5x - x².
Now, we can find the volume V by integrating the area of the disks formed at each x-value: V = ∫[π(5x - x²)²]dx from 0 to 5.
V = ∫₀⁵[π(25x² - 10x³ + x⁴)]dx = π[25/3x³ - (5/2)x⁴ + (1/5)x⁵]₀⁵ = π[(125 - 625 + 3125/5) - 0] = π(500/3).
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Please construct the proof (using basic and/or replacement rules). (B • (H v J)), (A v C) = (B v D), ~ (A Ɔ D), (B • F) ƆJ 1.. ~ F
To prove the given expression using basic and/or replacement rules, we start with the given premises and apply logical rules to derive the desired conclusion, we have proved that (B • (H v J)), (A v C) = (B v D), ~ (A Ɔ D), (B • F) Ɔ J using basic and/or replacement rules.
~(B • (H v J)) (Premise)
~(A v C) (Premise)
B v D (Premise)
~A Ɔ D (Premise)
(B • F) Ɔ J (Premise)
~F (Premise)
To prove: (B • (H v J)), (A v C) = (B v D), ~ (A Ɔ D), (B • F) ƆJ
using the distributive law:
7. ~B v (H v J) (From 1, De Morgan's law)
A v C (From 2)
~A Ɔ D (From 4)
~F v J (From 5, logical disjunction rule)
~B v (H v J), A v C, ~A Ɔ D, ~F v J (From 7, 8, 9, 10)
Using replacement rules:
12. (B v D), (H v J), A v C, ~A Ɔ D, ~F v J (From 3, 11)
Using De Morgan's law and logical conjunction rule:
13. (B v D), (H v J), A v C, ~(A Ɔ D), ~F v J (From 12)
Using the distributive law:
14. (B v D), (H v J), (A v C) = ~(A Ɔ D), ~F v J (From 13, equivalence)
Therefore, we have proved that (B • (H v J)), (A v C) = (B v D), ~ (A Ɔ D), (B • F) Ɔ J using basic and/or replacement rules.
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A store is offering a 30% discount on shirts. A shirt at the store has an original cost of $25. What is the cost of the shirt, in dollars, after the discount?
The cost of the shirt, in dollars, after the 30% discount is $17.50.
What is discount?
A discount is a reduction in the price of a product or service that is offered by a seller to a buyer. Discounts can be offered for a variety of reasons, such as to attract customers, increase sales, or clear out inventory. Discounts can be expressed as a percentage or a fixed amount, and they can be applied at the time of purchase or deducted from an invoice or bill. Discounts are often used in sales promotions, marketing campaigns, and loyalty programs to incentivize customers to buy or use a product or service.
If a store is offering a 30% discount on shirts that cost $25 originally, then the discount amount is:
30% of $25 = 0.30 x $25 = $7.50
The discount amount is $7.50, so the new price of the shirt after the discount is:
$25 - $7.50 = $17.50
Therefore, the cost of the shirt, in dollars, after the 30% discount is $17.50.
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Help step by step !!!??? Please help asap please !!!???
Answer:
Choice 1= 19 times, 16 people
Step-by-step explanation:
Answer:
19 times 16 people
do 374 subtracted by 16, then divide 374 by 18, lastly, the remainder is how many who will be on the last ride
Fred is planning a fundraiser where he will collect $4.50 fir every mile he runs.
In the future, Free Corporation, will receive $520,000. If the future receipt is discounted at an interest rate of 12% and its present value is $210,018 in how many years is the $520,000 received? a. 9 years: b. 6 years c. 7 years d. 8 years
The future receipt is discounted at an interest rate of 12% and its present value is $210,018 in 7 years is the $520,000 received.
The formula for calculating present value is:
PV = FV / (1 + r)^n
Where:
PV = Present Value
FV = Future Value
r = Interest Rate
n = Number of years
Rearranging the formula to solve for 'n' (number of years):
n = log(FV / PV) / log(1 + r)
Plugging in the given values:
PV = $210,018
FV = $520,000
r = 12% or 0.12
n = log(520,000 / 210,018) / log(1 + 0.12)
Using a calculator, we can find the approximate value of 'n':
n ≈ 7.2 years
Therefore, in approximately 7.2 years, the $520,000 will be received. Rounding to the nearest whole number, the answer is (c) 7 years.
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what is the mean for 5,5,5,4,4,2,2what is the mean for 7, 5, 1, 2, 8, 3, 3what is the mean for 8, 4, 2, 8, 7what is the mean for 3, 3, 7, 6, 3, 3, 3, 5, 4
The mean for the first set of numbers is 4. The mean for the second set of numbers is 4. The mean for the third set of numbers is 5. The mean for the fourth set of numbers is 4.11.
To calculate the mean, we sum up all the numbers in the set and divide the sum by the total count of numbers.
For the first set of numbers (5, 5, 5, 4, 4, 2, 2), the sum is 27. There are 7 numbers in the set, so the mean is 27/7 = 4.
For the second set of numbers (7, 5, 1, 2, 8, 3, 3), the sum is 29. There are 7 numbers in the set, so the mean is 29/7 = 4.
For the third set of numbers (8, 4, 2, 8, 7), the sum is 29. There are 5 numbers in the set, so the mean is 29/5 = 5.
For the fourth set of numbers (3, 3, 7, 6, 3, 3, 3, 5, 4), the sum is 37. There are 9 numbers in the set, so the mean is 37/9 = 4.11 (rounded to two decimal places).
Therefore, the mean for the respective sets of numbers are 4, 4, 5, and 4.11.
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Find mZG The diagram is not to scale.
om 3: Linear Regression
FINAL PROJECT: DAY 3
he manager at Stellarbeans, collected data on the daily high temperature and revenue from coffee salm
ne days this past fall are shown in the table below
Day 1 Day 2 Day 3 Day 4 Day 5 Day & Day 7 Day 8 Day 9
High Temperature, t 54
Coffee Sales, f(t)
50
70
58
52
48
$2900 $3080 $2500 $2580 $2200 $2700 $3000 $3620 $372
e linear regression function, f(t), that estimates the day's coffee sales with a high temperature
A linear regression function, f(t), that estimates the day's coffee sales with a high temperature is f(t) = -58t + 6,182.
The correlation coefficient (r) is -0.94.
Yes, r indicates a strong linear relationship between the variables because r is close to -1.
How to find an equation of the line of best fit and the correlation coefficient?In order to determine a linear regression function and correlation coefficient for the line of best fit that models the data points contained in the table, we would have to use an online graphing tool (scatter plot).
In this scenario, the high temperature would be plotted on the x-axis of the scatter plot while the y-values would be plotted on the y-axis of the scatter plot.
From the scatter plot (see attachment) which models the relationship between the x-values and y-values, the linear regression function and correlation coefficient are as follows:
f(t) = -58t + 6,182
Correlation coefficient, r = -0.944130422 ≈ -0.94.
In this context, we can logically deduce that there is a strong linear relationship between the data because the correlation coefficient (r) is closer to -1;
-0.7<|r| ≤ -1.0 (strong correlation)
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Missing information:
State the linear regression function, f(t), that estimates the day's coffee sales with a high temperature of t. Round all values to the nearest integer. State the correlation coefficient, r, of the data to the nearest hundredth. Does r indicate a strong linear relationship between the variables? Explain your reasoning.
Pls pls help I don’t have time HELP ASAP. It also detects if it’s right or wrong.
Answer:
B is the correct answer
Step-by-step explanation:
becasue if you solve this you get (0,0) (1,20) and (2,40) so b is the correct answer
Justify each step in the flowchart proof.
Given: m ZABC = m Z CBD
Prove: BC bisects ZABD.
A
MZABC = m_CBD
B
LABCLCBD
С
BC bisects LABD
B
A:
B:
The justification for each step in the flowchart proof is given as:
A. given
B. definition of congruent
C. definition of bisect
What is an Angle Bisector?A segment that divides an angle into two equal halves is known as an angle bisector.
In the image attached below, we want to prove that BC is an angle bisector of angle ABD.
The following justofy each step in the flowchart proof:
m∠ABC ≅ ∠CBD (given)
m∠ABC ≅ ∠CBD (definition of congruent)
BC bisects ABD (definition of bisect)
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Answer:
Step-by-step explanation:
six pepperoni circles will exactly fit across the diameter of a 12-inch pizza when placed. if a total of 24 circles of pepperoni are placed on this pizza without overlap, what fraction of the pizza is covered by pepperoni
If six pepperoni circles can fit across the diameter of a 12-inch pizza, it means that each circle has a diameter of 2 inches. Given that a total of 24 circles of pepperoni are placed on the pizza without overlap.
Since the diameter of the pizza is 12 inches, its radius is half that, which is 6 inches. If six pepperoni circles can fit across the diameter, it means that the diameter of each circle is 2 inches. The area of each circle can be calculated using the formula A = πr^2, where r is the radius. In this case, the radius of the pepperoni circles is 1 inch. Therefore, the area of each circle is approximately 3.14 square inches.
With a total of 24 pepperoni circles on the pizza, the combined area covered by the pepperoni can be found by multiplying the area of one circle (3.14 square inches) by the number of circles (24), resulting in approximately 75.36 square inches. To find the fraction of the pizza covered by pepperoni, we divide this area by the total area of the pizza, which is calculated using the formula A = πr^2, where r is the radius of the pizza. In this case, the radius is 6 inches. Thus, the total area of the pizza is approximately 113.04 square inches.
Dividing the area covered by pepperoni (75.36 square inches) by the total area of the pizza (113.04 square inches), we get the fraction 0.6667, which can be simplified to 2/3. Therefore, approximately two-thirds of the pizza is covered by the pepperoni circles.
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Caroline is considering two video game rental plans. Plan A can be modeled with the equation C = 2n, and Plan B can be modeled with the equation C = n + 6, where C represents the cost in dollars and n represents the number of games rented each month. Which statement would justify selecting Plan A instead of selecting Plan B?
Options
A. Caroline rents exactly 7 games each month.
B. Caroline rents exactly 6 games each month.
C. Caroline rents 6 or more games each month.
D. Caroline rents from 1 to 5 games each month.
Answer:
D. Caroline rents from 1 to 5 games each month.
Step-by-step explanation:
Given
Plan A:
\(C = 2n\)
Plan B:
\(C = n + 6\)
Required
Which options justifies A over B
The solution to this question is option (d).
In option d, n = 1,2,3,4,5
When any of the values of n is substituted in plan A and B, respectively; the cost of plan A is cheaper than plan B.
This is not so, for other options (A - C)
To show:
Substitute 1 for n in A and B
Plan A:
\(C = 2n\) \(= 2 * 1 = 2\)
Plan B:
\(C = n + 6\) \(= 1 + 6 = 7\)
Substitute 5 for n in A and B
Plan A:
\(C = 2n\) \(= 2 * 5 = 10\)
Plan B:
\(C = n + 6\) \(= 5 + 6 = 11\)
See that A < B
Callie reads the same number of pages each month. How many pages will she have read after 4 months? Is an estimate or exact answer needed?
Answer:
if it doesn't give u a number then u can't explain or estimate it because there is not enough info.
Step-by-step explanation:
Though if there is a number then just multiple that by 4 and ya get your answer.
Somebody please help me with this math question and I’ll give you 26 points please if you are going to submit links do not answer me thank you
The Answer:
y = 1/2x + 3
Answer 3
Step-by-step explanation:
More than 84% of the school graduates passed the TSI before the 12 grade. State the null and alternative hypotheses.
Answer:
Step-by-step explanation:
The null hypothesis (H0) would be: Less than or equal to 84% of the school graduates passed the TSI before the 12th grade.
The alternative hypothesis (H1) would be: More than 84% of the school graduates passed the TSI before the 12th grade.
Write 125 x (5^4)7 as a single power of 5
125 x (5^4)7 as a single power of 5 is 28*5^4.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
Given;
125 x (5^4)7
Now, 125 x (5^4)7
=125x140
=17500
=28*5^4
Therefore, by algebra the answer will be 28*5^4.
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A number increased by three is the same as quadrupling that number increased by five all divided by four. What is le number?
Answer:
The number is infinity
Step-by-step explanation:
Let the unknown number be x
if the number increased by three, then we have;
x + 3
Also quadrupling that number increased by five all divided by four is expressed as;
(4x+5)/4
Equating bith expressions and calculating x;
x+3 = (4x+5)/4
cross multiply;
4(x+3) = 4x + 5
4x+12 = 4x + 5
4x-4x = 5 - 12
0x = -7
x = -7/0
x = ∞
Hence the number is infinity
Graph and find the area of the figure with vertices (−2, −2), (−3, 3), (0, 3), (1, −2).
Answer:
9 unit²Step-by-step explanation:
The points are plotted and the figure is a parallelogram with base and height both of 3 units long.
The area is:
A = 3*3 = 9 unit²HELP ME PLEASE!!! THANK YOU!
Answer:
down v
Step-by-step explanation:
1=20 mph
2=40 mph
3 1/4= 60.5 mph(im not sure if its correct but.)
.5 mph=10
2.5 mph=50
thats all i know
April took out a $600 loan from the bank. At the end of 5 years, she pays
back the principal, plus $60 simple interest. What was the interest rate?
a) 2%
b) 7%
c) 1.2%
d) 5.5%
Answer:
2%
Step-by-step explanation:
$60 is 10% of $600
If you divide that 10% by the 5 years you get 2%
can someone help me please
Answer:
8)449.1 9)349.3
Step-by-step explanation:
8.499+10/100*499=499+0.1*499=499+49.9=548.9
9.499-30/100*499=499-0.3*499=499-149.7=349.3
In the cross (or vector) product we know that what then is in unit-vector notation if bx = by?
If bx = by in the cross product or vector product, the unit-vector notation of the resulting vector would be (0, 0, 1) or simply k-hat.
In the cross product or vector product of two vectors, the resulting vector is perpendicular to both of the original vectors. The direction of the resulting vector is determined by the right-hand rule, where the thumb represents the direction of the cross product.
If bx = by, it means that the x-component of the first vector is equal to the y-component of the second vector. In this case, the resulting vector will have an x-component and y-component of zero.
Since the resulting vector must be perpendicular to both vectors, its z-component must be non-zero. Therefore, the unit-vector notation of the resulting vector would be (0, 0, 1), where the z-component (k-component) is 1.
If bx = by in the cross product, the resulting vector in unit-vector notation would be (0, 0, 1) or simply k-hat. This indicates that the resulting vector has zero components in the x and y directions and a non-zero component in the z direction.
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