Answer: Ratio of their investments is 3:4:6:7. Ratio of profits is 13:4:6:7.
Step-by-step explanation:
a. we know that their investments are 30,000 , 40,000 , 60,000 , 70,000 respectively.
so the ratio o their investments is, A:B:C:D = 3:4:6:7
A: (360-120) x (30000/ 30000+40000+60000+70000) = 36
B: (360-120) x (40000/ 30000+40000+60000+70000) = 48
C: (360-120) x (60000/ 30000+40000+60000+70000) = 72
D: (360-120) x (70000/ 30000+40000+60000+70000) = 84
b. For dividing the profit, it is given that 1/3rd of the profit is reserved for the manager. So,
1/3 of360 = 120
A: 120 + (360-120) x (30000/ 30000+40000+60000+70000) = 156
B: (360-120) x (40000/ 30000+40000+60000+70000) = 48
C: (360-120) x (60000/ 30000+40000+60000+70000) = 72
D: (360-120) x (70000/ 30000+40000+60000+70000) = 84
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The following table shows the number of hours 45 hospital patients...
The following table shows the number of hours 45 hospital patients slept following the administration of a certain anesthetic.
show all information at jpg
The following table shows the number of hours 45 hospital patients slept for one night. Use the table to answer the questions:Hours of Sleep | Patients0-2 | 53-5 | 96-8 | 179-11 | 2212-14 | 10a) How many patients slept between 6 and 11 hours?A total of 22 patients slept between 6 and 11 hours.
To find out, we need to add the number of patients who slept for 6-8 hours (17) and those who slept for 9-11 hours (5). Therefore, 17+5=22.b)
The mode is the value that occurs most frequently in the data set. In this case, the mode is the number of hours that the highest number of patients slept.
From the table, we can see that 9-11 hours is the mode because 22 patients slept for that number of hours, which is more than any other number of hours.c)
The median is the middle value in the data set when the data are arranged in numerical order. In this case, we have 45 patients, so we need to find the middle value between the 22nd and 23rd patients. These patients slept for 9-11 hours, so the median is 9-11 hours.
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4X to the power of four minus 3X to the power of 3+ 6X -10 divided by X plus one
The function [4x⁻⁴ - 3x ³ + 6x -10]/ x +1 is described accordingly.
What is the description of the above function?The graph of the function [4x⁻⁴ - 3x³ + 6x - 10]/(x + 1) represents a rational function.
It may exhibit vertical asymptotes at x = -1, where the function approaches infinity or negative infinity.
The graph can also have x-intercepts and may show different behavior based on the values of x.
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Full question
Describe the [4x⁻⁴ - 3x ³ + 6x -10]/ x +1
Find the surface area of the cone to the nearest square unit. Use π = 3.14.
396 cm2
283 cm2
198 cm2
452 cm2
Answer:
S = π(6^2) + π(6)(9) = 90π
= about 283 cm^2
Using π = 3.14:
S = 90(3.14) = about 283 cm^2
Review the Monthly Principal & Interest Factor chart to answer the question:
FICO Score APR 30-Year Term 20-Year Term 15-Year Term
770–789 5.5 $5.68 $6.88 $8.17
750–769 6.0 $6.00 $7.16 $8.44
730–749 6.5 $6.32 $7.46 $8.71
710–729 7.0 $6.65 $7.75 $8.99
690–709 7.5 $6.99 $8.06 $9.27
Calculate the monthly payment, for a 15-year term mortgage, after a 20% down payment on a $181,700.00 purchase price, for a household with a 760 credit score.
$1,226.84
$1,365.71
$1,528.93
$1,834.46
The closest amount to $1,225.38 is $1,226.84. Therefore, the correct answer is $1,226.84.
To calculate the monthly payment for a 15-year term mortgage, we need to consider the purchase price, down payment, and the interest rate associated with the FICO score range.
Given information:
Purchase price: $181,700.00
Down payment (20%): $181,700.00 * 0.20 = $36,340.00
FICO score: 760
Loan amount: Purchase price - Down payment = $181,700.00 - $36,340.00 = $145,360.00
Looking at the Monthly Principal & Interest Factor chart, for a 15-year term and a FICO score of 750-769, the APR is 6.0. The corresponding factor for this APR is $8.44.
To calculate the monthly payment, we multiply the loan amount by the factor:
Monthly payment = Loan amount * Factor = $145,360.00 * $8.44 = $1,225.38 (rounded to the nearest cent)
Among the given options, the closest amount to $1,225.38 is $1,226.84. Therefore, the correct answer is:
$1,226.84.
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Help find mean median and mode for 3 and 5
Given statement solution is :- "3 and 5 - 1," the mean is 3.5, the median is 5, and there is no mode.
To find the mean, median, and mode for the given numbers, let's start by organizing the numbers in ascending order:
For "3 and 5":
Ascending order: 3, 5
Mean:
To find the mean, we sum up all the numbers and divide the total by the count of numbers.
Mean = (3 + 5) / 2 = 8 / 2 = 4
Median:
The median is the middle value in a set of numbers when they are arranged in ascending order. Since we have two numbers, the median is the average of the two middle numbers.
Median = (3 + 5) / 2 = 8 / 2 = 4
Mode:
The mode is the value that appears most frequently in a set of numbers.
In this case, there is no repeating value, so there is no mode.
For "3 and 5 - 1":
Ascending order: 2, 5
Mean:
Mean = (2 + 5) / 2 = 7 / 2 = 3.5
Median:
Median = 5 (since we have two numbers, the median is the average of the two middle numbers, which is 5 in this case)
Mode:
Again, there is no repeating value, so there is no mode.
Therefore, for "3 and 5," the mean and median are both 4, and there is no mode.
For "3 and 5 - 1," the mean is 3.5, the median is 5, and there is no mode.
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Look at the picture.
Options:
A. PQ = 9.27, Area = 38.2
B. PQ = 9.267, Area = 58.2
C. PQ = 8.27, Area = 28.2
D. PQ = 7.23, Area = 42.2
Answer:
C
Step-by-step explanation:
(i)
given a triangle with 2 sides and the included angle known
to find the third side use the Cosine rule
a² = b² + c² - 2bc cosA
adapting the formula to describe Δ PQR
r² = p² + q² - 2pq cosR
here r = PQ, p = QR = 7.6 , q = PR = 8.4 and ∠ R = 62° , then
r² = 7.6² + 8.4² - (2 × 7.6 × 8.4 × cos62° )
= 57.76 + 70.56 - 59.942
= 128.32 - 59.942
= 68.376 ( take square root of both sides )
r = [tex]\sqrt{68.378}[/tex]
≈ 8.27
that is PQ ≈ 8.27 cm ( to 2 decimal places )
(11)
the area (A) is then calculated as
A = [tex]\frac{1}{2}[/tex] pq sinR
= 0.5 × 7.6 × 8.4 × sin62°
≈ 28.2
that is area of Δ PQR ≈ 28.2 cm² ( to 1 decimal place )
Answer:
c
Step-by-step explanation:
I think it's c I might be wrong though not sure
I NEED HELP ASAP PLEASE!
The mean is 5.907, and the standard deviation is 0.677.
To construct a binomial probability distribution, we need the parameters n and p, where n is the number of trials and p is the probability of success in each trial.
From the provided data, it appears that we have the probability distribution for a binomial random variable X with n = 6 trials. The probabilities are as follows:
P(0) = 0.0156
P(1) = 0.0938
P(2) = 0.2344
P(3) = 0.3125
P(4) = 0.2344
P(5) = 0.0938
P(6) = 0.0156
The sum of these probabilities should be equal to 1.
Now, let's compute the mean (μ) and standard deviation (σ) using the formulas:
μ = np
σ = √(np(1 - p))
So, p = P(success)
= P(1) + P(2) + P(3) + P(4) + P(5) + P(6)
= 0.0938 + 0.2344 + 0.3125 + 0.2344 + 0.0938 + 0.0156
= 0.9845
Now, we can calculate the mean and standard deviation:
μ = np = 6 x 0.9845 ≈ 5.907
σ = √(np(1 - p))
= √(6 x 0.9845 x (1 - 0.9845))
= 0.677
Therefore, the mean is 5.907, and the standard deviation is 0.677.
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of David's money is of Henry's money. on mo 2 (a) Express David's money as a fraction of Henry's money. David Henry (b) If David has $60 more than Henry, how much money do they have altogether?
a.)The expression of David's money as a fraction would be = 2/3×h
b.) The amount of money they have together would be = $40.
How to determine the fraction of Henry's money that is of David's?To determine the fraction of Henry's money that is of David's, the following steps needs to be considered.
Let d represent David's money
Let h represent Henry's money
a.) Therefore, Fraction of Henry's money that belongs to David;
d = 2/3×h ----> 1
b.) d= 60+ h----->2
Substitute d= 60+h in equation 1;
60+h = 2/3h
60= 2/3h-h
60 = -1/3h
h= 60/3
h= -20
The total amount of money they both have= 60-20 = $40
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Complete question:
1/2 of David's money is 2/3 of Henry's money.
a) Express David's $ as a fraction of Henry's $.
b) If David has $60 more than Henry, how much money to they have altogether.
What is the value of x if F(x)=7
Answer:
I'm sorry, but you haven't provided any information about the function F(x). In order to determine the value of x when F(x) equals 7, I need to know the specific form or equation of the function. Could you please provide more details or the equation of F(x)?
Step-by-step explanation:
The proper angle for a ladder is about 75 degrees from the ground. Suppose you have a 23 foot
ladder. How far from the house should you place the base of the ladder? Round to the hundredths..
(2 decimal places)
The distance from the house that should place the base of the ladder is approximately 5.95 feet.
We can start by modeling the situation as a right triangle. Doing this will allow us to use basic trigonometric functions to determine how far the base of the ladder should be placed from the house. Imagine the house makes a 90 degree angle with the ground. The ladder gets propped against the house, making a 75 degree angle with the ground. We can use the fact that cos(75°) = base distance/length of ladder to figure out the length of the base. Multiplying both sides by length of ladder we get, length of ladder × cos(75°) = base distance. Now, by plugging in the length of the ladder we find that base distance = 5 2381/2500 or roughly 5.95 feet.
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From the diagram below, if
= 27,
= 9, and
= 3,
then what would be the length of AB?
The length of AB in the triangle is 9 units.
How to find the side of a triangle?A triangle is a polygon with three sides. The sum of angles in a triangle is 180 degrees.
Therefore, the side AB can be found as follows:
AC = 27 units
CD = 9 units
DB = 3 units
Therefore, let's find the height of the triangle. AD is an angle bisector. Angle bisector theorem states that an angle bisector of a triangle divides the opposite side into two segments that are proportional to the other two sides of the triangle.
Using angle bisector theorem,
AC / AB = CD / DB
Therefore,
27 / AB = 9 / 3
cross multiply
AB = 81 / 9
AB = 9 units
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Question: The area of a trapezium is (6ah² + 9a) units². If the perpendicular height is (4h² + 6) units, express the sum of the lengths of the parallel sides in terms of a. Sum of the lengths of the parallel sides = ? units²
Answer:
3a units^2
Step-by-step explanation:
Area = 6ah^2 + 9a = 1/2(b1 + b2) × (4h^2 + 6)
Simplify: 6ah^2 + 9a = 2h^2(b1 + b2) × 3(b1 + b2)
Factor out b1 + b2:
6ah^2 + 9a = (2h^2 + 3)(b1 + b2)
Express sum of lengths (divide both sides by 2h^2 + 3):
(b1 + b2) = 6a^2 + 9a / 2h^2 + 3
= 3 units^2
So, the sum of the lengths is 3 units^2 (in terms of a).
Two functions are by f(x)=3x+18(x)= 2 x1. Find (g.f) (x).
The (g.f)(x) of the two functions is:
(g.f) (x) = 6x + 37
How to find (g.f)(x) of the two functions?A function is an expression that shows the relationship between the independent variable and the dependent variable. A function is usually denoted by letters such as f, g, etc.
To find (g.f) (x), follow the steps below:
1. Substitute the value of f(x) into the function g(x).
2. Then simplify the expression.
That is:
f(x) = 3x+18
g(x) = 2x+1
Thus, we have:
(g.f) (x) = g(f(x))
(g.f) (x) = g(3x+18)
(g.f) (x) = 2(3x+18) + 1
(g.f) (x) = 6x+36 + 1
(g.f) (x) = 6x + 37
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Determine whether each ordered pair is a solution of the equation y=2x+6
The equation does not hold true, the ordered pair (3, 10) is not a solution of the equation y = 2x + 6.In this way, we can determine whether an ordered pair is a solution of the given equation or not.
Given the equation y = 2x + 6To determine if an ordered pair is a solution of this equation or not, substitute the values of x and y in the equation. If the equation holds true, then the ordered pair is a solution.
If it is not true, then the ordered pair is not a solution.For example, let's consider the ordered pair (1, 8).
Here, x = 1 and y = 8.Substituting these values in the given equation,
we get: y = 2x + 6 => 8 = 2(1) + 6 => 8 = 8 Since the equation holds true,
the ordered pair (1, 8) is a solution of the equation y = 2x + 6.
Now, let's consider another ordered pair, say (3, 10). Here, x = 3 and y = 10.Substituting these values in the given equation, we get: y = 2x + 6 => 10 = 2(3) + 6 => 10 = 12
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What is the standard deviation?
Mean: 34
14, 14, 20, 38, 47, 48, 57
[tex]$\sigma={\sqrt {\frac {529+196+169+16+196+400+400}{7}}}$[/tex]The formula for calculating standard deviation is [tex]\sigma={\sqrt {\frac {\sum(x_{i}-{\mu})^{2}}{n}}}[/tex], where
[tex]\sigma[/tex] is the population standard deviation, [tex]n[/tex] is the population size, [tex]x_{i}[/tex] is each value from the population, and [tex]\mu[/tex] is the population mean. We can substitute each value into the formula and simplify, which gives us our standard deviation.
[tex]$\sigma={\sqrt {\frac {(57-34)^{2}+(48-34)^{2}+(47-34)^{2}+(38-34)^{2}+(20-34)^{2}+(14-34)^{2}+(14-34)^{2}}{7}}}$[/tex]
[tex]$\sigma={\sqrt {\frac {(23)^{2}+(14)^{2}+(13)^{2}+(4)^{2}+(-14)^{2}+(-20)^{2}+(-20)^{2}}{7}}}$[/tex]
[tex]$\sigma={\sqrt {\frac {529+196+169+16+196+400+400}{7}}}$[/tex]
[tex]$\sigma={\sqrt {\frac {1906}{7}}}$[/tex]
[tex]$\sigma = \sqrt{272.285714286}$[/tex]
[tex]$\sigma \approx 16.5010822156$[/tex]
Our answer is [tex]$\sigma \approx 16.5010822156$[/tex], or, for convenience, [tex]$\sigma \approx 16.501082$[/tex], which is the most digits you'll probably need for any calculations you make.
Hope this helps!
Assume that a producer pays $300 in fixed costs. For producing 4 units of their product they pay $100 in variable costs and for producing 5 units they pay $150 as variable cost what the Marginal Cost for the fifth unit? a. $40 b. $50 c. $60 d. $80
The marginal cost for the fifth unit is $50. Hence, the correct option is b. $50.
To find the marginal cost for the fifth unit, we need to calculate the change in total cost when moving from producing 4 units to producing 5 units.
Total cost consists of both fixed costs and variable costs. The fixed costs remain constant regardless of the number of units produced, so they do not contribute to the marginal cost.
Variable costs, on the other hand, increase as more units are produced. The change in variable costs from producing 4 units to producing 5 units is $150 - $100 = $50.
Therefore, the marginal cost for the fifth unit is $50.
Hence, the correct option is b. $50.
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.........................................................................................
Answer:
A sunflower pollen grain is 0.2 times as large as a ginger pollen grain.
Step-by-step explanation:
The diameter of a sunflower pollen grain is [tex]3.0 * 10^{-5}[/tex] meters.
The diameter of a ginger pollen grain is [tex]1.5 * 10^{-4}[/tex] meters.
We can divide the diameter of the sunflower pollen grain by the diameter of the ginger pollen grain to compare the sizes of these grains.
This gives us:
[tex]\frac{3.0 * 10^{-5} }{1.5 * 10^{-4 }}= 0.2[/tex]
This means that a sunflower pollen grain is 0.2 times as large as a ginger pollen grain.
So the answer is A sunflower pollen grain is 0.2 times as large as a ginger pollen grain.
Answer: Your answer is B. A sunflower pollen grain is 0.2 times as large as a ginger pollen grain.
Step-by-Step Explanation: Take them both and divide them (3.0*10^(-5))/(1.5*10^(-4)) Solving the equations first and that makes:
Scientific Notation 2⋅10^−1
Or expanded form 0.2
Hope it helped :D
If $3200 is invested at a rate of 2.4% that is compounded annually, how much will it be worth after 4 years?
Answer:
To calculate the future value of an investment compounded annually, we can use the formula:
Future Value = Principal Amount * (1 + Interest Rate)^(Number of Periods)
In this case, the principal amount is $3200, the interest rate is 2.4% (or 0.024), and the investment is compounded annually for 4 years.
Plugging these values into the formula, we get:
Future Value = $3200 * (1 + 0.024)^4
Calculating the exponent first:
(1 + 0.024)^4 = 1.024^4 = 1.09985925696
Multiplying the principal amount by the exponent:
Future Value = $3200 * 1.09985925696
Future Value ≈ $3,519.47
Therefore, the investment will be worth approximately $3,519.47 after 4 years when compounded annually at a rate of 2.4%.
Step-by-step explanation:
Upon returning from military deployment, Joseph is trying to describe to his family all that has changed at home while he was away. To illustrate his point, he gathered information about common items that had changed in his absence. He found that the average television size was 40.4 inches at the time of his deployment, and was 42.8 inches by the time he returned. What is the absolute and relative change in average television sizes from the time of Joseph's deployment to the time he returned?
Round your answer for relative change to the nearest hundredth of a percent.
Do not round until your final answer.
The relative change in average television sizes is 5.94%.
To calculate the absolute change in average television sizes, we subtract the initial average size from the final average size:
Absolute change = Final average size - Initial average size
Absolute change = 42.8 inches - 40.4 inches
Absolute change = 2.4 inches
Therefore, the absolute change in average television sizes from the time of Joseph's deployment to the time he returned is 2.4 inches.
To calculate the relative change in average television sizes, we divide the absolute change by the initial average size and then multiply by 100 to express it as a percentage:
Relative change = (Absolute change / Initial average size) × 100
Relative change = (2.4 inches / 40.4 inches) × 100
Relative change = 0.05940594× 100
Relative change = 5.94%
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danny's voice cracks every 20 minutes. How many times deos his voice crack in a day? In a week?
Answer:
504 voice cracks per week
72 voice cracks per day
Step-by-step explanation:
If Danny's voice cracks every 20 minutes, we can calculate the number of times his voice cracks in a day and in a week.
Number of times his voice cracks in a day:
There are 60 minutes in an hour, so there are 60/20 = 3 intervals of 20 minutes in an hour.
Since there are 24 hours in a day, Danny's voice cracks 3 times per hour * 24 hours = 72 times in a day.
Number of times his voice cracks in a week:
Since there are 7 days in a week, we can multiply the number of times his voice cracks in a day by 7.
Danny's voice cracks 72 times per day * 7 days = 504 times in a week.
Rock climbing is a dangerous sport, with an average of 30 rock climbers dying each year in the United States and many more suffering serious injuries. Earnings of rock climbers vary greatly. While most earn less than $10,000 per year, the best generally those who've accomplished the most dangerous climbs-can earn as much as $300,000 per year through
sponsorships, public speaking engagements, books, and movies. The difference in earnings between the highest- and lowest-paid rock climbers reflects:
-compensating differentials.
-the superstar effect.
-efficiency wages.
-signaling.
The difference in earnings between the highest- and lowest-paid rock climbers reflects:
Compensating differentials.
Given,
Earnings differences among the rock climbers in the US .
While most earn less than $10,000 per year, the best generally those who've accomplished the most dangerous climbs-can earn as much as $300,000 per year through sponsorships, public speaking engagements, books, and movies.
Now,
The basis of earning differentiation is that how much risky rock climbing can a person do successfully. If a person is having average rock climbing skills than he will earn $10000 per year approximately and if a person is having extra ordinary rock climbing skills than he will earn $30000 per year approximately .
So,
It totally depends on the skill set of the rock climber .
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Solve the given equation for x
7x=b-ax
Answer:
x=b/7+aStep-by-step explanation:
7x=b-ax(7x+ax)=bx(7+a)=bx=b/7+aWhich sequence shows the numbers in order from least to greatest?
A. -2.14<3.16227766017<2.8
B. 2.8<3.16227766017<2.14
C. 2.14<3.16227766017 <2.8
D. 2.14<2.8<3.16227766017
The sequence that shows the numbers in order from least to greatest is D. 2.14 < 2.8 < 3.16227766017.
The sequence that shows the numbers in order from least to greatest is D. 2.14 < 2.8 < 3.16227766017.What is the meaning of the inequality symbols?The inequality symbols are mathematical symbols that are used to compare two values.
They indicate the relationship between two values that are not equal to each other. Here are the inequality symbols:
< (less than)≤ (less than or equal to)> (greater than)≥ (greater than or equal to)What is the meaning of the sequence?
A sequence is a set of numbers arranged in a particular order. The order of the numbers in a sequence can be from smallest to largest or largest to smallest.
The sequence D. 2.14 < 2.8 < 3.16227766017 is arranged from smallest to largest because the first number in the sequence, 2.14, is the smallest, and the last number in the sequence, 3.16227766017, is the largest.
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Find the length of side AB. Round to the nearest hundredth inch.
The value of length of side AB is,
⇒ AB = 5 units
We have to given that;
The figure is shown a trapezoid.
Hence, By using Pythagoras theorem we get;
⇒ AB² = 4² + (5.25 - 2.25)²
⇒ AB² = 16 + 3²
⇒ AB² = 16 + 9
⇒ AB² = 25
⇒ AB = √25
⇒ AB = 5 units
Therefore, The value of length of AB is,
⇒ AB = 5 units
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You want to build a sandbox for your little brother. You know you need to
buy lumber to frame the outside of the box. If the dimensions of the box
will be 6.3 ft. by 8.2 ft., how many feet of lumber will you have to buy?
Your answer should be a number only.
You need to buy 29 feet of lumber to frame the outside of the sandbox.
To calculate the total amount of lumber you need to buy to frame the outside of the sandbox, you need to calculate the perimeter of the box.
The formula to calculate the perimeter of a rectangle is:
Perimeter = 2×(Length + Width)
Given that the dimensions of the sandbox are 6.3 ft. by 8.2 ft., we can substitute the values into the formula:
Perimeter = 2×(6.3 ft. + 8.2 ft.)
Perimeter = 2 × (14.5 ft.)
Perimeter = 29 ft.
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Please help, vry easy!!, super simple
The function is solved and the table of values of y = { 4 , 3 , 2 , 1 , 0 }
Given data ,
Let the function be represented as A
Now , the value of A is
y = ( -x / 3 ) + 2
Let the table of values of the input x be represented as table A , where
x = { -6 , -3 , 0 , 3 , 6 }
Let the table of values of the output y be represented as table B, where
when x = -3
y = ( -( -3 ) / 3 ) + 2
y = 1 + 2 = 3
when x = 0
y = ( 0/3 ) + 2
y = 2
when x = 3
y = ( -3/3 ) + 2
y = 1
when x = 6
y = ( -6/3 ) + 2
y = 0
Hence , the table of values of the function is y = { 4 , 3 , 2 , 1 , 0 }
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Line g is shown on the graph.
Previous Question
-2
×844
What is the equation of the line in slope-intercept form that is perpendicular to line g and passes through the point (1, -2)?
An equation of the line in slope-intercept form that is perpendicular to line g and passes through the point (1, −2) is y = 3x - 5.
Here, we have,
In Mathematics and Geometry, the point-slope form of a straight line can be calculated by using the following mathematical equation (formula):
y - y₁ = m(x - x₁)
Where:
m represent the slope.
x and y represent the points.
First of all, we would determine the slope of this line;
Slope (m) = (y₂ - y₁)/(x₂ - x₁)
Slope (m) = (5 - 6)/(0 + 3)
Slope (m) = -1/3.
For the equation of line g, we have:
y - 6 = (x + 3)
y - 6 = -1/3(x + 3)
y = -x/3 + 1 + 6
y = -x/3 + 7
Therefore, the slope, m = -1/3.
In Mathematics, a condition that must be met for two lines to be perpendicular is given by:
m₁ × m₂ = -1
-1/3 × m₂ = -1
m₂ = 3
At data point (1, -2), an equation of this line can be calculated by using the point-slope form:
y - y₁ = m(x - x₁)
y - (-2) = 3(x - 1)
y + 2 = 3x - 3
y = 3x - 5
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The list shows the number of visitors to an exhibition. 185 349 107 355 451 Estimate, by rounding each number to the nearest 100, how many visitors there were.
Answer: Total visitors =1500
Step-by-step explanation:
By rounding off each no. nearest to 100 is :
185=200, 349=300, 107=100, 355= 400. 451= 500
By adding round off no. i.e.200+300+100+400+500= 1500
So total no. of visitors were 1500
Question 4 problem solving
(a) The given sequence 2,4,8,..... is a geometric sequence, that is, the common ratio of the sequence is the same.
The next term, that is, the fourth term of the sequence can be found with the help of the nth term formula of G.P.(Geometric progression) which is given as
Aₙ = arⁿ⁻¹ where a is the first term and r is the common ratio.
Aₙ = (2)(2)⁴⁻¹
= (2)(2)³
= 16
(b) Putting n= 1,2,3,4 one by one in 2ⁿ, we have
2¹ =2
2²=4
2³=8
2⁴= 16
Now evaluating n²-n+2 by putting n=1,2,3,4
Putting n=1, we have
n²-n+2 = (1)²-1+2
= 1-1+2=2
Putting n=2, we have
n²-n+2 = (2)²-2+2
= 4-2+2
=4
Putting n=3, we have
n²-n+2 = (3)²-3+2
= 9-3+2
= 6+2
=8
Putting n=4, we have
n²-n+2 = (4)²-4+2
= 16-4+2
= 14
Now evaluating n³-5n²+10n-4 by putting n=1,2,3,4
Putting n=1,
(1)³-5(1)²+10(1)-4
= 1-5+10-4
= -4+6
= 2
Putting n=2,
(2)³-5(2)²+10(2)-4
= 8-20+20-4
= 4
Putting n=3,
(3)³-5(3)²+10(3)-4
=27-45+30-4
=8
Putting n=4,
(4)³-5(4)²+10(4)-4
=20
c) 2ⁿ is a geometric sequence, but the other two do not have the same ratio and hence their nth term can not be found by G.P.
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The volume of the planet is approximately 1.02×109 km³, and the mass of the planet is about 5.683 × 1021 kg. What is the average density of the planet in grams per cubic centimeter? The average density of the planet is approximately_____ g/cm³ .
The average density of the planet is approximately 5.6g/cm³
How to determine the densityThe formula for density is expressed as;
D = m/v
Such that;
D is the densitym is the massv is the volumeFrom the information given, we have that;
Volume = 1.02×10⁹ km³
Mass = 5.683 × 10²¹ kg
Convert the parameters
Volume = 1.02×10²⁴cm³
Mass = 5.683 × 10²⁴g
Substitute the values, we have;
Density = 5.683 × 10²⁴g/1.02×10²⁴cm³
Density = 5.6g/cm³
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