The total income tax imposed on $47,000 is $12,800
How does income tax work?The term "income tax" describes a class of taxes that governments impose on income generated by people and businesses within their territorial jurisdiction.
Taxpayers are required by law to submit an income tax return each year in order to determine their tax obligations.
Income taxes are the main source of funding for governments. They are employed to fund public services, provide residents with goods, and settle debts owing to the government.
A number of states and municipal governments, in addition to the federal government, also require payment of income tax. The Internal Revenue Service is responsible for collecting taxes and enforcing the tax laws in the United States (IRS).
Regarding credits, deductions, and other forms of taxable and reportable income.
Firstly let us break the income tax as per the given condition
Income = 47,000 = 30,000 + 17,000
hence 20% tax is imposed on $30,000 and 40% on $17,000
Total income tax = 20% of 30000 + 40% of 17000
Total income tax = 6000 + 6800 = 12800
hence, The total income tax imposed on $47,000 is $12,800.
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Attached as an image below.
The formula for the squirrel population is P(t) = 400 e^0.5t and the doubling time of the population is 17. 68 years
Growth constant
The growth constant k can be defined as the frequency or also known as the number of times per unit time of growing by a factor
it is also called the logarithmic return, compounded return, or the force of interest.
Note that the general formula for growth rate is given as;
[tex]P(t) = P0 e^k^t[/tex]
Where,
Po = Initial value = 400 squirrels
r = Rate of growth
k = constant of proportionality = 0. 5 per year
t = time = 1 year
The function P(t) is given as;
P(t) = 400 e^0.5t
Note that the formula for doubling time is given as;
[tex]TD = t \frac{In 2}{In 1 + r/ 100}[/tex]
r = 4
t = 1
substitute into the formula
[tex]TD = 1 \frac{0. 693}{0. 0392}[/tex]
Doubling time = 1 × 17. 68
Doubling time = 17. 68 years
Thus, the formula for the squirrel population is P(t) = 400 e^0.5t and the doubling time of the population is 17. 68 years
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How do you solve for m?
m= −(4+m)+2
Answer:
[tex]\bf m = - 1[/tex]
Step-by-step explanation:
[tex]\bf m= −(4+m)+2[/tex]
First of all, let's Rearrange the given terms :-
[tex]\bf m = - ( m +4) + 2[/tex]
Now, let's distribute:-
[tex]\bf m = - m - 4 + 2[/tex]
Add numbers -4 + 2 = -2
[tex]\bf m = - m - 2[/tex]
Add m to both sides, and combine like terms :-
[tex]\bf 2m = - 2[/tex]
Divide both sides by 2 :-
[tex]\bf m = - 1[/tex]
Find sec, tan 0, and sin 0, where is the angle shown in the figure.
Give exact values, not decimal approximations.
0
4
5
The exact values of sec θ, tan θ and sin θ are 6.4/4, 5/4 and 5/ 6.4 respectively.
How to determine the trigonometric ratiosFrom the figure, we have the values of the sides to be;
opposite side = 5Adjacent side = 4Let's use Pythagorean theorem to find the hypotenuse(x)
Hypotebuse square = opposite side square + adjacent side square
Substitute the values deduced from the figures given
x² = 5² + 4²
x² = 25 + 16
x² = 41
x = [tex]\sqrt{41}[/tex]
x = 6. 4
sin θ = opposite/hypotenuse
Substitute the values
sin θ = 5/ 6. 4
tan θ = opposite/ adjacent
Substitute the values
tan θ = 5/ 4
sec θ = hypotenuse/ adjacent
substitute the values
sec θ = 6. 4/ 4
Thus, the exact values of sec θ, tan θ and sin θ are 6.4/4, 5/4 and 5/ 6.4 respectively.
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The image of the point (-7, 8) under a translation is (-11, 6). Find the coordinates
of the image of the point (8, -3) under the same translation.
Answer:
(4,-5)
Step-by-step explanation:
Nathan shares out 12 sweets he gives yasmin 1 sweet for 3 sweets he buys how many sweets does nathan get
Given that, Nathan shares out 12 sweets, if he gives Yasmin 1 sweet for 3 sweets he buys, Nathan will get 9 sweets.
How many sweets does Nathan gets?Given that, Nathan shares out 12 sweets, he gives Yasmin 1 sweet for 3 sweets he buys.
Let the sweet be represented by x
For each x sweet for Yasmin, Nathan gets 3x sweets
Hence
x + 3x = 12
We solve for x
4x = 12
x = 12/4
x = 3
Hence;
Yasmin gets x sweet = 3
Nathan gets 3x sweets = 3 × 3 = 9
Given that, Nathan shares out 12 sweets, if he gives Yasmin 1 sweet for 3 sweets he buys, Nathan will get 9 sweets.
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The diameter of an electric cable is normally distributed, with a mean of 0.9 inch and a standard deviation of 0.02 inch. What is the probability that the diameter will exceed 0.92 inch? (You may need to use the standard normal distribution table. Round your answer to three decimal places.)
The probability that the diameter of the electric cable that is normally distributed will exceed 0.92 inch is 0.841
What is probability?Probabilities are used to determine the chances, likelihood, possibilities of an event or collection of events
How to determine the probability?The given parameters are:
Mean = 0.9
Standard deviation = 0.2
Calculate the z-score at x = 0.92 using
[tex]z = \frac{x - \mu}{\sigma}[/tex]
This gives
z = (0.92 - 0.9)/0.02
Evaluate the numerator; subtract 0.9 from 0.92
z = 0.02/0.02
Divide 0.02 by 0.02. This gives
z = 1
The probability is then represented as:
P(x > 0.92) = P(z > 1)
Next, we look up the value of the z table of probabilities
From the z table of probabilities, we have:
P(x > 0.92) = 0.841
Hence, the probability that the diameter of the electric cable that is normally distributed will exceed 0.92 inch is 0.841
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Which inequality is represented by the given graph?
C) y ≤ -3x+6
D) y ≥ 3x+6
Answer: c, y ≤ -3x+6
Step-by-step explanation:
for example we could use a point on the graph such as (-2, 0)
now we would insert the numbers into the inequality:
y ≤ -3x+6
= 0 ≤ -3(-2) +6
= 0 ≤ 6+6
= 0 ≤ 12
which is true! therefore it is y ≤ -3x+6
3 + b/d
HELP !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Fractions are mathematical expressions that relate two numbers as a quotient. Thus the answer to this question is: [tex]\frac{3d + b}{d}[/tex]
Fractions are expressions in a form of a quotient that relates one number to another number. The two numbers can be classified as either the numerator or the denominator. The number above the division line is the numerator, while that below the line is the denominator. Some types of fractions are proper fractions, improper fractions, and mixed fractions.
A given fraction can undergo basic arithmetic operations when two or more are involved. Also, a fraction can be added to one another, or subtracted from a whole number.
The given expression in the question involves the addition of a whole number (3), to a fraction (b/d).
Given: 3 + b/d
The LCM is d, thus;
3 + b/d = [tex]\frac{3d + b}{d}[/tex]
Therefore, the required answer is: [tex]\frac{3d + b}{d}[/tex]
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Solve p/-1+ 17 = 13 for p.
Answer: 208
Step-by-step explanation:
[tex]\frac{p}{-1+17} =13[/tex]
[tex]\frac{p}{16} =13[/tex]
[tex](16)\frac{p}{16} =13(16)[/tex]
[tex]p=13*16[/tex]
[tex]p=208[/tex]
[tex]\large\displaystyle\text{$\begin{gathered}\sf \frac{p}{-1}+17=13 \end{gathered}$}[/tex]
[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{Apply \ the \ properties \ of \ fractions: \frac{a}{-b}=-\frac{a}{b}. } \end{gathered}$}[/tex]
[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{=-\frac{P}{1} } \end{gathered}$}[/tex]
[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{Apply\:the\:rule \:\frac{a}{1}=a} \end{gathered}$}[/tex]
[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{=-P} \end{gathered}$}[/tex][tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{-P+17=13} \end{gathered}$}[/tex][tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{Subtract \ 17 \ from \ both \ sides. } \end{gathered}$}[/tex]
[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{-P+17-17=13-17} \end{gathered}$}[/tex][tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{Simplify } \end{gathered}$}[/tex]
[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{-P=-4} \end{gathered}$}[/tex][tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{Divide\:both\:sides\:by\:-1} \end{gathered}$}[/tex]
[tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{\frac{-p}{1}=\frac{-4}{-1} } \end{gathered}$}[/tex][tex]\large\displaystyle\text{$\begin{gathered}\sf \bf{Simplify } \end{gathered}$}[/tex]
[tex]\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{P=4} \end{gathered}$}}[/tex]Please help quick!!!
Reflect over the y axis then translate
The composition of transformation that maps ABCD to EHGF is reflect over the y-axis, then translate (x - 1, y + 1)
What is transformation?Transformation is the movement of a point from its initial location to a new location. Types of transformations are reflection, rotation, translation and dilation.
Translation is the movement of a point either up, left, right or down in the coordinate plane.
The composition of transformation that maps ABCD to EHGF is reflect over the y-axis, then translate (x - 1, y + 1)
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Find the missing side of the triangle. pythagorean 4 A. 337‾‾‾‾√ km B. 5‾√ km C. 193‾‾‾‾√ km D. 112‾√ km
The missing side in the given triangle is x = √193 km
Pythagoras theoremThe Pythagoras theorem is expressed as;
x^2 = a^2 + b^2
where
x is the longest side
Substitute the given side
x^2 = 12^2 + 7^2
x^2 = 144 + 49
x = √193 km
Hence the missing side in the given triangle is x = √193 km
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Use the Associative Property to find the value of the variable.
(8 x 15) x s = 8 x (15 x 11)
Answer:
hey its me again so the answer is 11.
I'm sure because I did this.
1/2x + 1/4y = 3 solve for y
Answer:
y=-2x+12
Step-by-step explanation:
First, subtract 1/2 from each side
1/4y = -1/2x + 3 --> multiply each side by 4
y = -2x + 12 is your final answer
Please draw the number line and show me if possible:)
The solution to the given inequality expression is expressed as x ≥ 6
Solving inequalitiesGiven the inequality expression shown below;
5x-9/7≥3
Cross multiply
(5x -9)≥7(3)
Expand
5x-9≥21
Add 9 to both sides
5x ≥ 21 + 9
5x ≥ 30
x ≥6
The solution to the given inequality expression is expressed as x ≥ 6
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What is the value of tan M?
15
15
17
L
∞ ∞01 200
8
17
8
15
15
K 8
8
M
Answer:
The value of tan M = 15/8
Step-by-step explanation:
[tex]tan \: m \: = \frac{p}{b} \\ tan \: m \: = \frac{15}{8} [/tex]
Triangle L N M is shown. Angle L N M is 90 degrees and angle N M L is 20 degrees. The length of L N is 21.
Use the diagram to complete the statements.
The measure of angle L is
°.
The trigonometric ratio that uses ∠M and LN to solve for NM is
.
The length of NM, to the nearest tenth, is approximately
.
Angle L: 70°
The trigonometric ratio used to solve for NM is the tangent ratio.
NM = 57.7 [nearest tenth]
How to Apply the Trigonometric Ratios?Using the triangle sum theorem, find angle L.
Angle L = 180 - 90 - 20 = 70°
Using the tangent ratio, we can use ∠M and LN to solve for NM
Tan 20 = 21/NM [tan ∅ = opposite/adjacent]
NM = 21/tan 20
NM = 57.7 [nearest tenth]
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Answer:
70, tangent, 57.7
Step-by-step explanation:
Calculate the perimeter and area of this shape.
Perimeter =
Area =
7.5 cm
6 cm
2 cm
3 cm
2 cm
area = 25.5 cm²
Step-by-step explanation:
i have shown in the image you have to rotate it to see how i worked the area out
i am very sorry i cant work the perimeter out since i have no idea what the length of the two sides of the triangle are . if you need help on understanding how i worked out the area please let me know .
hopefully i was able to help you in half of the question i am sorry for not helping on the perimeter :)
Answer:
Step-by-step explanation:
Perimeter=25
The number of marriage licenses issued by Clark County Nevada, the county where Las Vegas is located, has been
decreasing since the year 2000:
According to the model, how many marriage licenses were issued in 2003? Round your answer to the nearest hundred.
You must find the linear regression equation first.
The number of marriage licenses were issued in 2003 is 21586.
According to the statement
we have to find the number of marriage licenses were issued in 2003
and the given equation is y=3.405x^2-17674x+21533000
And in this equation x represent the time
And Y represent the number of marriage certificate issued.
So, in given equation
y=3.405x^2-17674x+21533000
we fill the value of X and find the value of Y means tne number of marriage license is issued in 2003
We know that X = 3 from 2000 to 2003
Then put X=3 in the given equation.
Then
This is the equation (1) represent the change
y=3.405(3)^2-17674(3)+21533000 -(1)
y = 30.645+53022+21533000
y = 21586052.645
On nearest hundred the value becomes 21586.
So, The number of marriage licenses were issued in 2003 is 21586.
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DISCLAIMER: The question was incomplete. please find the full content below.
QUESTION:
According to the model, how many marriage licenses were issued in 2003? Round your answer to the nearest hundred.
The number of marriage licenses issued by Clark county Nevada, the county where Las Vegas is located, has been decreasing since the year 2000. This can be modeled by y=3.405x^2-17674x+21533000 where x is the year and y is the number of marriage licenses issued.
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Answer: A. 137,000
Step-by-step explanation: I did the quiz.
Which inequality is true when x = 4?
A. X+5<_3
B.x/2<3
c.9x>36
D.18<_-8
Answer:
[tex] \sf{b. \frac{x}{2} <3}[/tex]
step by step explanation:
We will try one by one.
A. x + 5 < 3
Step 1. Subtitution Value of x
= 4 + 5 < 3
Step 2. Add by 4 with 5
= 9 < 5
A is wrong because 9 is bigger then 5
B. x/2 < 3
= 4/2 < 3
= 2 < 3
is true because 2 is smaller than 3
C. 9x > 36
9(4) > 36
36 > 36
is wrong, should 36 = 36
D. 18 < 8
is wrong because 18 is bigger than 8
lim 1 − cos(2x) /x x→0
The value of the limit of the function given when the value of x tends to zero is 0
What is a limit of a function?The limit of a function is a fundamental concept in calculus and analysis concerning the behavior of that function near a particular inputs.
Given the function limit below;
lim x→0 [1 − cos(2x) /x]
Substitute the value of x into the expression to have;
f(0) = 1-cos2(0)/0
f(0) = 1-1/0
f(0) = 0/0 (ind)
Apply the L'hospital rule to have:
lim x→0 [ − (-2sin2x)) /1]
Substitute the value of x into the result
f(0) = 2sin2(0)/1
f(0) = 2(0)
f(0) = 0
Hence the value of the limit of the function given when the value of x tends to zero is 0
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On 1st January 2014, Rs1,000,000 was invested and on 1st January of each
successive year Rs500,000 was added to it. What sum will be accumulated by
31st December 2018 if interest is compounded each year at 10% per annum?
The sum accumulated by 31st December 2018 is Rs 4,163,060.00
What is future value?
Future value is the accumulated amount that investments would yield in future period when the amounts invested are added with the total interest earned.
Note in this case that Rs500,000 would be invested subsequently for 4 years( 2015-2018 , January 1st of each year)
We can determine the future value of each investment using the future value formula shown below:
FV=PV*(1+r)^N
PV=amount invested
r=interest=10%
N=number of years that an amount is invested(for instance, the amount invested on 1st January 2014 will earn interest in 2014,2015,2016, 2017 and 2018 i.e. for 4 years)
Total FV=1,000,000*(1+10%)^5+500,000*(1+10%)^4+500,000*(1+10%)^3+500,000*(1+10%)^2+500,000*(1+10%)^1
Total FV=Rs 4,163,060.00
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A stadium has 53,000 seats. Seats sell for $25 in Section A, $20 in Section B, and $15 in Section C. The number of seats in Section A
equals the total number of seats in Sections B and C. Suppose the stadium takes in $1,131,000 from each sold-out event. How many seats
does each section hold?
The number section A, section B and section C seats sold are 26500, 14200 and 12300 respectively.
How to use equation to find the total number of seat in each section?The stadium has 53,000 seats.
Seats sell for $25 in Section A, $20 in Section B, and $15 in Section C.
The number of seats in Section A equals the total number of seats in Sections B and C.
Therefore,
a = b + c
a + b + c = 53000
b + c + b + c = 53000
2b + 2c = 53,000
25a + 20b + 15c = 1131000
25(b + c) + 20b + 15c = 1131000
25b + 25c + 20b + 15c = 1131000
45b + 40c = 1131000
Hence,
2b + 2c = 53000
45b + 40c = 1131000
40b + 40c = 1060000
45b + 40c = 1131000
-5b = - 71000
b = - 71000 / -5
b = 14,200
Therefore,
2(14,200) + 2c = 53000
2c = 53000 - 28400
2c = 24600
c = 24600 / 2
c = 12300
Hence,
a = b + c
a = 14200 + 12300
a = 26500
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a. How many bushels of corn, if any, will the United States export or import at the prices below?
At $1, it will (import, export, or neither import or export )
___bushels.
b. How many bushels of corn, if any, will the United States export or import at the prices below?
At $2, it will (import, export, or neither import or export )
____bushels.
c. How many bushels of corn, if any, will the United States export or import at the prices below?
At $3, it will (import, export, or neither import or export )
____ bushels.
d. How many bushels of corn, if any, will the United States export or import at the prices below?
At $4, it will (import, export, or neither import or export )
____ bushels.
e. How many bushels of corn, if any, will the United States export or import at the prices below?
At $5, it will (import, export, or neither import or export )
____ bushels.
2.
a. Use this information to construct the U.S export supply curve and import demand curve for corn
b. Suppose that the only other corn-producing nations is France, where the domestic price is $4. Which country will export corn and which country will import it
The United Stated will import corn France will export it
The United States will export corn and France will import it
Neither country will import or export corn.
Based on the graph which depicts the United States domestic market for corn at different prices, we can logically deduce the following information:
At $1, the United States will import 15,000 bushels of corn.At $2, the United States will import 7,000 bushels of corn.At $3, the United States will neither import nor export any bushels of corn.At $4, the United States will export 6,000 bushels of corn.At $5, the United States will export 10,000 bushels of corn.Assuming France is the only other corn-producing nations at a domestic price of $4, we can reasonably infer that the United States will export corn while France will import it.
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Consider the following sample data set of 20 numbers.
24 30 4 42 40 26 23 36 12 45 29 21 34 16 47 28 32 54 19 9
1.
Create a relative frequency table and a frequency histogram with the bin width 8.
2.
Find the sample mean. (Round to the nearest hundredth.)
3.
Find the sample standard deviation
. (Round to the nearest hundredth.)
The mean = 28.55, while the standard deviation is 13.16
1. The histogram is an attachment
How to calculate for the mean of the data setWe have the following numbers
24 30 4 42 40 26 23 36 12 45 29 21 34 16 47 28 32 54 19 9
The sum of these numbers is given as
571
The total numbers = 20
The mean = 571/20
= 28.55
2 = How to find the standard deviation= (24 - 28.55)2 + ... + (9 - 28.55)/20 - 1
= 3292.95/19
= 173.31315789474
s = √173.31315789474
= 13.164845532506
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3. Mr. Black's pay increased by 15% when he got a raise, bringing his new salary to $184. What was Mr. Black's original pay?
Answer:
$160
Step-by-step explanation:
115% = $184
100% = X
let X be the original salary
(X is unknown)
115% = $184
100% = X
cross mutiply
115 x X = 100 x 184
115X = 18400
X = 18400 divided by 115
X = $160
therefore,Mr Black's original salary before increased by 15% was $160
hope am helpful.
Select the correct answer. A new building in the shape of a square pyramid is to be constructed. The slant height will be five times the side length of the base. There will be between 20,000 square feet and 50,000 square feet of construction material used for the outside of the building. What would be the maximum possible side length of the base of the building? Round your answer to the nearest foot. Ο Α. 71 feet OB. 89 feet OC. OD. 45 feet 141 feet
From the information given about the square pyramid, the maximum base length of the building is 67.42 cm.
How do you determine the maximum side length?We are given the following details are:
Base = b
Slant height (l) = 5b
The lateral surface area is calculated using:
L = 2bl
So, we have:
L = 2 * b * 5b
Evaluate the product
L = 10b²
The total surface area is calculated using:
T = L + b²
So, we have:
T = 10b² + b²
Evaluate the sum
T = 11b²
Recall that the maximum surface area is 50,000 square feet
So, we have:
11b² = 50000
Divide both sides by 11
b² = 50000/11
Taking the square root of both sides, we have
b = 67.42
Hence, the maximum base length of the building is 67.42 cm
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Find the difference between Simple interest and compound interest on 1200 for one year at 10% per annum
Answer:
the difference between them is zero cause on first year simple interest and compound interest are equal
Factor problems 1-4 by finding the GCF.
1. 4x3 – 12x2 + 4x
A. 4x(x2 – 3x + 1)
B. 4x(4x2 – 3x + 1)
C. 4x(4x2 – 3x - 1)
D. 4x(x2 – 6x + 1)
E. 2x(2x2 – 6x + 2)
F. This polynomial cannot be factored using the GCF method.
2. 9x4 + 4x3 - 27x2 + 12x
A. x(9x3 + 4x2 + 27x + 12)
B. x(9x3 + 4x2 - 27x + 12)
C. x(9x4 + 4x3 – 27x2 + 12x)
D. x4(9x3 + 4x2 + 27x + 12)
E. x(9x4 + 4x3 - 27x2 + 12x)
F. This polynomial cannot be factored using the GCF method.
3. x2 – 3x + 4
A. x(x – 3)
B. x(x + 3)
C. x(x – 1)
D. x(x – 7)
E. x(x + 7)
F. This polynomial cannot be factored using the GCF method.
4. 17x5 + 51x2 – 34
A. 17x5 + 3x2 + 2
B. 17(x3 + 3x2 + 2)
C. 17(x4 + 3x2 + 2)
D. 17(x5 + 3x2 – 2)
E. x5 + 3x2 – 2
F. This polynomial cannot be factored using the GCF method.
Factor problems 5 - 8 by grouping.
5. x2 – 2x + 1
A. (x – 1)(x – 1)
B. (x – 1)(x + 1)
C. (x + 1)(x – 1)
D. (x + 1)(x + 1)
E. (x + 2)(x – 1)
F. This polynomial cannot be factored by grouping.
6. x2 + 2x – 15
A. (x - 5)(x – 3)
B. (x + 5)(x + 3)
C. (x + 5)(x – 3)
D. (x - 5)(x + 3)
E. (x + 15)(x – 1)
F. This polynomial cannot be factored by grouping.
7. x2 – 3x – 18
A. (x + 3)(x + 6)
B. (x + 3)(x - 6)
C. (x - 3)(x - 6)
D. (x - 3)(x + 6)
E. (-x + 3)(x + 6)
F. This polynomial cannot be factored by grouping.
8. 8x2 + 47x + 28
A. This polynomial cannot be factored by grouping.
B. (3x + 7)(5x - 4)
C. (3x - 7)(5x - 4)
D. (3x + 7)(-5x + 4)
E. (-3x + 7)(-5x + 4)
F. (3x + 7)(5x + 4)
The factor of the polynomial expression 4x^3 – 12x^2 + 4x by using GCF method is 4x(x^2 - 3x + 1).
What is a factor of a number?The factors of a given number are those numbers that are divisible by the given number without a remainder.
By using the GCF method in an algebraic, i.e. the factors of the algebraic equation will be dependent on the greatest common factor.
From the given information, we are to factorize the following expression by using the GCF method as follows.
1.
4x^3 – 12x^2 + 4x
Here; the common expression in all the three variables is 4x. So, we have:
= 4x(x^2 - 3x + 1)
Option A is correct
2.
9x^4 + 4x^3 - 27x^2 + 12x
The common expression here is (x); So,
= x(9x^3 +4x^2 - 27x + 12)
Option B is correct
3.
x^2 - 3x + 4
This polynomial expression cannot be factored.
Option F is correct.
4.
17x^5 + 51x^2 - 34
= 17(x^5 + 3x^2 - 2)
Option D is correct.
The factorization of a quadratic equation (polynomial expression) in the form (ax^2 + bx + c) by grouping results into two factors that if multiplied together result back into the original equation.
Given that:
5.
x^2 – 2x + 1
Factors are two numbers that if the multiplied result in (ac) and if added it gives us (b)
By grouping, the polynomial expression is:
= (x - 1)(x - 1)
Option A is correct
6.
x^2 + 2x - 15
= (x + 5) (x - 3)
Option C is correct
7.
x^2 – 3x – 18
=(x + 3)(x - 6)
Option B is correct
8.
8x^2 + 47x + 28
= This polynomial expression cannot be factored in as it contains rational numbers.
Option A is correct.
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Question 2 of 5
Select the correct answer.
After buying a car, Sarah decides to get it appraised every few years. After owning the car for two years, its value is $5,000. After own
the car for five years, its value is $2,000.
What is the equation that models this inverse variation?
Oy=
O y = 2,500
O
O
5,000
y = 2,000
y =
10,000
Submit
Reset
The inverse proportional relationship that models this variation is given as follows:
[tex]y = \frac{10,000}{x}[/tex]
What is a proportional relationship?A proportional relationship is a function in which the output variable is given by the input variable multiplied by a constant of proportionality, that is:
y = kx
In which k is the constant of proportionality.
An inverse proportional relationship is given as follows:
[tex]y = \frac{k}{x}[/tex]
In this problem, we have an inverse relation in which y(2) = 5000, hence the constant k is found as follows:
[tex]y = \frac{k}{x}[/tex]
[tex]5000 = \frac{k}{2}[/tex]
k = 10,000
Hence the relation is:
[tex]y = \frac{10,000}{x}[/tex]
As stated in the problem, when x = 5, y = 2,000, which we can verify replacing in the relation.
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Does anyone know the answer to this?
Answer: equation: y=-4x+1
slope: -4
y intercept:1