The average power exerted on the flag of mass 2 kg by the student is 58.8 Watt.
What is power?Power can defined as the rate at which work is done.
To calculate the average power exerted on the flag, we use the formula below.
Formula:
P = mgv............ Equation 1Where:
P = Power exertedm = Mass of the flagg = Acceleration due to gravityv = Velocity at which the flag was raisedFrom the question,
Given:
m = 2 kgv = 3 m/sg = 9.8 m/s²Substitute these values into equation 1
P = 2×3×9.8P = 58.8 WattHence, the average power exerted is 58.8 Watt.
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Emi is a veterinarian. In a given week, 50% of the 16 dogs she saw were boxers. Antonio is also a veterinarian. In the same week, 7 of the 35 dogs he saw this week were Boxers. Each wants to record the part, the whole, and the percent.
Emi will need to locate the whole in this case because she already has the part and the percentage.
What is a whole?In mathematics, the total number of items being analyzed, in this case, the total number of dogs, is represented by a whole.
The term "part" refers to a quantity that is typically smaller than the total and describes particular qualities. For instance, 20 of the 30 students in a classroom enjoy playing basketball. The part is 20 then.
The relationship between the part and the whole is represented by the percentage, which is a number followed by the symbol%. In this instance, the proportion of boxers and overall dogs are related.
Emi already knows the percentage (50%), the part (16), and the total number of dogs, which in this case is 32, as a result of this.
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what is:
s . s + 0.5s . s
if s=8.2
Answer:
100.86
Step-by-step explanation:
8.2*8.2+0.5(8.2)*8.2
Find the value of the expression:
3x^0 for x=2.6
Answer:
1
Step-by-step explanation:
We don't even need to calculate 3 x 2.6 considering any number raised to the power of zero equals 1.
A bag of fertilizer covers 3000 square feet of lawn. Find how many bags of fertilizer should be purchased to cover a rectangular lawn 290 feet by 170 feet. To cover the lawn bags of fertilizer are required
Answer: The correct answer is 17 bags of fertilizer to cover the lawn
Step-by-step explanation:
1 bag of fertilizer covers 3000 SF of lawn
How many bags are needed for an area of 290 feet x 170 feet
Calculate the Square Feet:
290 x 170 = 49,300 SF
Divide space (SF) by bag coverage (SF):
49,300 / 3,000 = 16.43 bags of fertilizer
Round up answer to 17 bags of fertilizer
Fill in the blank, rounding the result to exactly three significant digits when necessary
81 m = ___ ft
Select the values that make the inequality
The answer is -4, -1, 1, 3, 3.9, 3.99, 3.999.
Given,
In the question:
To see the figure:
To select the values that makes the inequality s ≤ 4 true.
Number table are given in figure.
To see the figure and analysis.
Now, According to the question;
To make the inequality s ≤ 4 true.
The selected value must be less than 4 {Properties of Inequality}
The values are sorted from small to large:
So, The answer is -4, -1, 1, 3, 3.9, 3.99, 3.999.
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Pam has worked for the same employer for 5 years. Her current salary is $73,500
which is 122.5% of her starting salary. What was Pam's starting salary?
What was Pam's starting salary?
Pam's current salary for 5 years = $73.500
Her salary went up for 122.5% in 5 years.
a = her starting salary
First, we will make an equation of this problem.
Let's use a as the symbol of her starting salary
equation that we are going to use
73500 = 122.5% x a
Next, we move a to the left and we want to divide 73500 with 122.5%
a = 73500 / (122.5/100)
Next, we want to divide 73500 with 1.225 since we've done dividing 122.5 with 100
a = 73500 / 1.225
a = 60000
Finally, we got the answer of Pam's starting salary was $60.000
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The scale on a map states that 1 centimeter corresponds to 15 kilometers Find how far apart two cities are if their corresponding points on the map are 13 centimeters apart
In this case, they are both centimetres, so they remain constant. The true size, 15km, is then multiplied by 13/ 1. Then, 20 × 13 = 195. As a result, the answer is 195 kilometres.
What is scale?The term scale refers to the relationship that exists between a measurement on a model and the corresponding measurement on the actual object. A scale of 1:5 means that the size of one unit in the drawing represents five units in reality. A scale of 1:5 is used, for example, if a giraffe with a real-world height of 150 inches is represented as 30 inches on the drawing. A ratio, such as 1:100, is used to represent a scale.A drawing at a scale of 1:100 indicates that the object is 100 times smaller than it would be in real life. You could also say that one unit in the drawing equals one hundred units in real life.Therefore,
The map has a scale = 1 cm
Corresponds to = 15 kilometers
Map centimeters apart = 13 cm
Then you simply multiply the true size
= 15km, by 13/ 1.
Then, 20 x 13 = 195.
Hence, the answer is 195 kilometers.
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What line is perpendicular to the line y= -1/2x + 8
Answer: y=2x+8
Step-by-step explanation:
you take the reverse of the slope being 2 including the negative.
Find the average for the set of numbers 7, 6, 12, 5, 7, 6, 13. Average:
Answer:
Add up all the numbers and divide the product of that by the numbers there are.
7+6+12+5+7+6+13 = 56
There are 7 numbers in these set of numbers hence we divide the product (56) by 7.
56/7 = 8
The answer is 8; The average of all these numbers is 8.
Step-by-step explanation:
Amount Desired at End of Period
$17,600.00
Length of Time
7
1. Period Used
2. Rate Used
23. PV factor used
3 4. PV of amount desired at end of period
Rate
2%
Compounded
Quarterly
Required:
Complete the following using the information above and the present value Table 12.3
or the present value table in the Business Math Handbook or the present value
formula to answer the following:
Note: Use cells A2 to D3 from the given information to complete this question.
A percentage is a number or ratio expressed as a fraction of . It is often denoted using the percent sign, "%" and PV factor used is 0.62026 .
Hence,
The amount desired at end of a period is $9400.
The length of time is 4 years .
The rate is 2%.
Compounded is monthly.
The period used is 48.
The rate used is 1%.
The PV factor used is 0.62026 .
The PV of the amount desired at the end of the period is $5830.45
What is the percentage?
A percentage is a number or ratio expressed as a fraction of . It is often denoted using the percent sign, "%".
Here from the question,
PV factor = (1 + i) ----(1)
where, i = 12/12 % , i =1
and
n = 4(12)
n = 48
Substituting the values in the equation , we get
PV factor = (1 + 0.01)^ -48
PV factor = 0.62026
Hence,
the amount desired at end of a period is $9400.
The length of time is 4 years.
The rate is %.
Compounded is monthly.
The period used is 48 .
The rate used is 1%.
The PV factor used is 0.62026.
The PV of the amount desired at the end of the period is $5830.45
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A Finnish registration consists of 3 letters and 3 numbers with empty spaces possible.
Numbers do not have leading zeroes and the number part cannot be only zero (for example AAA-001 isn't a valid plate but AAA-1 is). The registration plate must have at least one letter and one number. How many possible Finnish registration plates are possible to exist when the letters used are the 26 letters of the latin alphabet?
Answer:
How many possible plates there could be if we also allowed the letters Å, Ä and Ö?
Answer:
Using the Fundamental Counting Theorem, the number of plates for each case is obtained as follows:
Latin Alphabet: 17,558,424.Extra Letters: 24,364,611.What is the Fundamental Counting Theorem?The Fundamental Counting Theorem is a theorem that states that if there are n independent trials, each with [tex]n_1, n_2, \cdots, n_n[/tex] possible results, the total number of outcomes is calculated by the multiplication of the factorials as presented as follows:
[tex]N = n_1 \times n_2 \times \cdots \times n_n[/tex]
With the Latin letters, it is found that for the letters, there are 26 outcomes, hence:
[tex]n_1 = n_2 = n_3 = 3[/tex]
With one number, the number of outcomes for the digit is:
[tex]n_4 = 9[/tex]
(as the digit cannot be zero).
With two numbers, the number of outcomes for the digit are:
[tex]n_4 = 9, n_5 = 10[/tex]
With three numbers, the parameters are:
[tex]n_4 = 9, n_5 = 10, n_6 = 10[/tex]
Hence the total number of plates is obtained as follows:
T = 26³ x (9 + 9 x 10 + 9 x 10 x 10) = 17,558,424.
With the extra letters, each letter can assume 29 outcomes, hence the number of plates is:
T = 29³ x (9 + 9 x 10 + 9 x 10 x 10) = 24,364,611.
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10. Reduce the fraction 36/48 to its lowest terms.
O A. 114
O B. %
O C. 112/48
O D.34
Answer:
if D is 3/4 then it is the answer
Step-by-step explanation:
Because both 36 and 48 can be divided by 12 and 36/12 = 3 and 48/12=4 so the answer is 3/4
find the smallest value of an expression
(without using a calculator)
[tex]\bf\sqrt{(x-8)^2+(y+4)^2} +|y+3x|[/tex]
Step-by-step explanation:
to eliminate the always positive absolute value at the end let's set y = -3x
that makes the absolute value term = 0 in all cases.
then we have
sqrt((x - 8)² + (-3x + 4)²)
the x-value that makes this a minimum result also makes
(x - 8)² + (-3x + 4)²
a minimum.
x² - 16x + 64 + 9x² - 24x + 16
10x² - 40x + 80
the x that makes this a minimum, also makes
x² - 4x + 8
a minimum.
we get the extreme value as zero of the first derivative :
0 = 2x - 4
4 = 2x
x = 2
so, we get the minimum of all these expressions for x = 2.
as y = -3x, we get y = -3×2 = -6.
the minimum value for the expression is with
x = 2
y = -6
so, the minimum value is
sqrt((2 - 8)² + (-6 + 4)²) + |-6 + 3×2| =
= sqrt((-6)² + (-2)²) + |-6 + 6| =
= sqrt(36 + 4) + 0 =
= sqrt(40) = 6.32455532...
You might need: Calculator
Solve for a.
Reduce any fractions to lowest terms. Don't round your answer, and don't use mixed fractions.
4x +49x+8
3. One batch of pancakes needs 1 1/4 cups of pancake mix. One box has 9 cups of pancake mix How many batches of pancakes can be made with one box of pancake mix?
Differentiate the function with respect to x.
When we differentiate the given function with respect to x we get
(30x⁶ + 20x⁵ - 30x⁴ - 24x³)/ (5x²-3)²
what is Differentiation?
Differentiate is used for calculating rates of change.
How to Differentiate function?
Some of the formulas are; Power Rule: (d/dx) (xn ) = nxn⁻¹. Derivative of a constant, a: (d/dx) (a) = 0.
Here, we have
y = 2x⁵ + 2x⁴ / 5x² -3
when we differentiate a given function with respect to x, we get
dy/dx = {(5x² -3)(10x⁴ + 8x³)} - {(2x⁵ + 2x⁴)(10x -3)}/(5x -3)²
dy/dx = (30x⁶ + 20x⁵ - 30x⁴ - 24x³)/ (5x²-3)²
Hence, after differentiating the given function with respect to x, we get
(30x⁶ + 20x⁵ - 30x⁴ - 24x³)/ (5x²-3)²
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I need help with this Question.
The number of quarts in 12 L is 12.684 qt.
Given that, 12 L to qt.
What is metric conversion?Metric Conversion refers to the conversion of the given units to desired units for any quantity to be measured.
Here,
There are 1.057 quarts in a liter, and there are 0.946 liters in a quart.
Now, 12 L=12×1.057
= 12.684 qt
Therefore, the number of quarts in 12 L is 12.684 qt.
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Which equation below represents the Exponent Property of Logs?
The only equation given that represents the Exponent Property of Logs is; Option A: log(A^r) = r*log(A)
How to find the exponent property of logarithm?The exponent property of logarithm says that the log of a power is the exponent times the logarithm of the base of the power. For example;
logₐ(MN) = logₐM + logₐN
logₐ(M/N) = logₐM - logₐN
logₐ(3²) = 2logₐ3
The first example above shows the product rule of logarithms
The second example shows the quotient rule of logarithms
The third rule shows the power rule
Now, looking at the options, the only one that shows the correct pattern of exponent property of logarithm is;
Option A: log(A^r) = r*log(A)
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Current Year Previous Year
Occupied Rooms 1,512 1,458
Total Rooms 1,800 1,800
The proportions of the total rooms that were occupied each year are:
The current year is 84%.The previous year is 81%.What is the proportion?Proportion is the fractional value of a variable when compared to the whole.
Proportions show the ratio or relative relationship between two or more values set as equal.
Like ratios, proportions are depicted in fractions, decimals, or percentages to show how two values compare.
Current Year Previous Year
Occupied Rooms 1,512 1,458
Total Rooms 1,800 1,800
Proportion of occupied rooms = 84% 81%
(1,512/1,800 x 100) (1,458/1,800 x 100)
Thus, on average, room occupancy for the two years is 82.5%, and proportionately for each year, it is 84% for the current year, while the previous year recorded 81%.
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Question Completion:What proportion of the total rooms were occupied each year?
Tina has 5345 beads . She has 3687 fewer beads than her sister . How many beads does her sister have ?
Answer:
Her sister has 9032 beads
Step-by-step explanation:
All you have to do is Tina's beads plus the extra number of beads that her sister has
5345 + 3687 = 9032
Examine the worked examples. Then, answer the questions.
Alessa's car uses 2 gallons of gas to drive 45 miles.How many miles can
Alessa's car drive using 15 gallons of
Answer:
Alessa's car would be able to drive 337.5 miles with 15 gallons of gas.
Hank rents 9 cases of plates.He has 250 guests attending the banquet. There are 30 plates in each case. Did Hank rent enough plates? Explain
Answer:
yup
Step-by-step explanation:
so to find the amount of plates he has we :
30*9 = 270
How many guests :
250
Hank has 20 extra plates,
hope this helps :)
manuel wishes to purchase 25cent and 30 cent stamps. he decides to buy 10 fewer 30 cent stamps. How many of each can he buy for no more than $19.00
Using the simplification, Manuel buy 15 stamps of 25 cents and 5 stamps of 30 cent.
In the given question,
Manuel wishes to purchase 25 cent and 30 cent stamps.
He decides to buy 10 fewer 30 cent stamps.
We have to find how many of each can he buy for no more than $19.00.
Let he buy x stamps of 25 cent.
He want to buy 10 fewer 30 cent stamps.
So he buy x−10 stamps of 30 cent.
But he have to buy total stamps of $19.
So the equation is
x+x−10 = 19
Simplifying
2x−10=19
Add 10 on both side
2x−10+10=19+10
2x=29
Divide by 2 on both side
2/2 x =29/2
x=14.5
x≈15
Hence, he buy 15 stamps of 25 cent.
Now finding the number of 30 cent.
he buy x−10 stamps of 30 cent.
So 15−10=5.
So he buy 5 stamps of 30 cent.
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help me 10 pnts thanks so much
The expression 3.2^2 - 1 and 10 - 0.33 * 2 should be joined by less than to form an inequality
What is inequality?Inequality refers to a way of representing relationships between variables at the left hand side of equation to the variables to the right hand side of an equation.
The signs used in inequality are of 4 types namely
less thangreater thanless than or equal togreater than or equal toThe given expression is solved as follows
3.2^2 - 1
= 10.24 - 1
= 9.24
10 - 0.33 * 2
= 10 - 0.66
= 9.34
The two expressions can be joined as below
9.24 < 9.34
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Essay for operation of sets
What is Set Theory Formula?
The set formula is given in general as n(A∪B) = n(A) + n(B) - n(A⋂B), where A and B are two sets and n(A∪B) shows the number of elements present in either A or B and n(A⋂B) shows the number of elements present in both A and B.
In a set theory, there are three major types of operations performed on sets, such as: Union of sets (∪) Intersection of sets (∩) Difference of sets (–)
Set Operations include Set Union, Set Intersection, Set Difference, Complement of Set, and Cartesian Product of Set
Set Union
The union of sets A and B (denoted by A ∪ B) is the set of elements that are in A, in B, or in both A and B. Hence, A ∪ B = { x | x ∈ A OR x ∈ B }.
n(A∪B) = n(A) + n(B) − n(A∩B)
Set Intersection
The intersection of sets A and B (denoted by A ∩ B) is the set of elements which are in both A and B. Hence, A ∩ B = { x | x ∈ A AND x ∈ B }.
n(A∩B) = n(A)+n(B)−n(A∪B)
Set Difference
The set difference of sets A and B (denoted by A - B) is the set of elements that are only in A but not in B. Hence, A - B = { x | x ∈ A AND x ∉ B }.
Complement of a Set
The complement of a set A (denoted by A’) is the set of elements which are not in set A. Hence, A' = { x | x ∉ A }. More specifically, A'= (U - A) where U is a universal set that contains all objects.
The complement of a universal set is an empty set U′ = ϕ. The complement of an empty set is a universal set ϕ′ = U.
Cartesian Product / Cross Product
The Cartesian product of n number of sets A1, A2, ... An denoted as
A1 × A2 ... × An can be defined as all possible ordered pairs
De-Morgan's Law - The De Morgan's law states that for any two sets A and B, we have (A ∪ B)' = A' ∩ B' and (A ∩ B)' = A' ∪ B'
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Which equation represents this statement?
3 times the sum of 4 and a number is 18.
O 3 +4n = 18
O 3n+ 4 = 18
O 3.4+ n = 18
O 3 (n+4)= 18
The equation represents the statement "3 times the sum of 4 and a number is 18 " is option (D) 3(n+4) = 18
The statement is
3 times the sum of 4 and a number is 18
The equation is the the mathematical statement the represents the relationship between two expression or variables with an equal sign.
Consider the unknown number = n
Sum of 4 and the number = n + 4
3 times the sum of 4 and the number = 3(n + 4)
3 times the sum of 4 and a number is 18
3(n + 4) = 18
Hence, the equation represents the statement "3 times the sum of 4 and a number is 18 " is option (D) 3(n+4) = 18
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Solve the following 2(x + 3) = x - 4
Answer:
x = - 10
Step-by-step explanation:
2(x + 3) = x - 4
==> distribute the 2
2x + 6 = x - 4
==> subtract 6 from both sides
2x = x - 10
==> subtract x from both sides
x = - 10
Amanda has 5 office assistants. If A is the event that at least 4 of them are men and B is the event that at least 4 of them are women, are A and B mutually exclusive?
Choose the correct answer below.
O No
Yes
A and B are mutually exclusive events
The correct answer is yes
What are mutually exclusive events?
Two events are mutually exclusive in statistics and probability theory if they cannot happen simultaneously. A coin toss is the most basic illustration of two events that cannot coexist. The result of tossing a coin can be either heads or tails, but neither outcome can happen at the same time.
We are given that Amanda has 5 office assistants.
Events A is the event that at least 4 of them are men. this means that there is at most 1 female assistant
Events B is the event that at least 4 of them are women. this means that there is at most 1 male assistant.
Now one of the conditions is possible but both at the same time is not possible
Hence the both events are mutually exclusive.
The correct answer is yes
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The population of a small town, P, as a function of time, t, in years past 1940 is given below.
P = 2,511 + 500t
For which of the following years was the population of the town 11,511?
A. 1928
B. 1958
C. 1968
D. 1918
The year for which the population of the small town is 11,511 is; Choice B; 1958.
Function evaluationIt follows from the task content that the year for which the population of the small town in discuss becomes 11,511 be determined.
Given the function: P = 2,511 + 500t
11,511 = 2511 + 500t
9,000 = 500t
t = 9,000 / 500
t = 18 years.
Hence, the year in which case the population of the small town is; 11,511 is; 1940 + 18 = 1958.
Therefore, the year in which the population of the small town in discuss becomes 11,511 as required in the task content is Choice B; 1958 is correct.
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