x-intercept and y-intercept of the line y = 4x+5 is -5/4 and 5 respectively.
What is the equation straight line?
The given equation Y = mx + c is the general equation for a straight line, where m denotes the line's slope and c the y-intercept. It is the version of the equation for a straight line that is used most frequently in geometry. There are numerous ways to express the equation of a straight line, including point-slope form, slope-intercept form, general form, standard form, etc. A straight line is a geometric object with two dimensions and infinite lengths at both ends. The formulas for the equation of a straight line that are most frequently employed are y = mx + c and axe + by = c. Other versions include point-slope, slope-intercept, standard, general, and others.
The equation of the line is y = 4x+5
So the y-intercept is (x=0)
y = 5
And the x-intercept is (y=0)
4x +5 =0
x = -5/4
Hence, the x-intercept and y-intercept of the line y = 4x+5 is -5/4 and 5 respectively.
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identify a set of test cases that satisfies the all defs criterion, for variables x, k and y in method fun. use trace tables to show how the def-use pairs are covered.
Thus, the minimum time taken for a car from start to end of the assembly unit is 14.
Algorithm for assembly line scheduling using dynamic programming:-
1. We need following parameter:
· S[i,j]: The jth station on ith assembly line
· a[i,j]: Time required at station S[i,j], because every station has some dedicated job that needs to done. · e[i]: Entry time of product on assembly line i [here i= 1,2] · x[i]: Exit time from assembly line i· t[i,j]: Time required to transit from station S[i,j] to the other assembly line.
2. Further in dynamic programming we have to ways to do so:
· Reach station S1j from S1,j-1 (same assembly line).
· Reach station S1j from S2,j-1 (switch from second assembly line).
3. Calculate minimum time to leave.
4. After that find the minimum time to leave the previous two stations.
5. Then combining it with the time spent on station.
6. calculate the leaving time of previous stations.
7. Finally, we need two tables to store the partial results that are calculated for each station in an assembly line.
Example:- a = [[5,4,3], [2,3,7]], t = [[0,2,2], [0,1,1]]
e1 = 3, e2 = 2
x1 = 3, x2 = 4
T1[0] = e1 + a[0][0] = 3+5 = 8
T2[0] = e2 + a[0][1] = 2+2 = 4
T1 = [8, 0, 0]
T2 = [4, 0, 0]
i = 1
T1[1] = min(T1[1-1] + a[0][1], T2[1-1] + t[1][1] + a[0][1])
= min(8+4, 4+1+4) = min(12,9)
T1[1] = 9
T2[1] = min(T2[1-1] + a[1][1], T1[1-1] + t[0][1] + a[1][1])
= min(4+3, 8+2+3) = min(7,13)
T2[1] = 7
T1 = [8, 9, 0] T
2 = [4, 7, 0]
i = 2
T1[2] = min(T1[2-1] + a[0][2], T2[2-1] + t[1][2] + a[0][2])
= min(9+3, 7+1+3) = min(12,11)
T1[2] = 11
T2[2] = min(T2[2-1] + a[1][2], T1[2-1] + t[0][2] + a[1][2])
= min(7+7, 9+2+4) = min(14,15)
T2[2] = 14​
T1 = [8, 9, 11]
T2 = [4, 7, 14]
ans = min(T1[n-1]+x1, T2[n-1]+x2)
= min(11+3, 14+4) = min(14, 18)
ans = 14
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which statistic of the sampling distribution is used in calculating the margin of error for a confidence interval of the population mean?
Standard Deviation statistic of the sampling distribution is used in calculating the margin of error for a confidence interval of the population mean.
Basically, the margin of error is stated as follows:
Error margin, E = Z* (Standard deviation)
Therefore, the calculation of the margin of error does not employ the mean at all.
The margin of error is computed using the standard deviation.
The term "standard deviation" reveals that a measurement of the data's dispersion from the mean. While a high standard deviation indicates that the data are more spread or dispersed, a low standard deviation suggests that the data are clustered or gathered around the mean.
It depicts the average deviation of each score from the mean. A high standard deviation in a normal distribution denotes that values are often far from the mean, while a low standard deviation denotes that values are grouped together around the mean.
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the lengths of two sides of a triangle are 11 cm and 19 cm. identify the range of possible lengths for the third side.
The third side of the triangle whose two sides are 11 cm and 19 cm can be between 9 and 29.
What is a triangle?A triangle is a geometric figure with three edges, three angles and three vertices. It is a basic figure in geometry.
The sum of the angles of a triangle is always 180°
Given that,
The sides of triangles are 11 cm and 19 cm,
Let the third side of the triangle is x,
Since, a side of a triangle is greater than the difference of two sides and less than the sum of two sides,
implies that,
19-11<x<19+11
8 < x < 30
The possible range of third side is (9,29).
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Answer:
8cm < x < 30cm
Step-by-step explanation:
To find the range of lengths for the third side of a triangle when two side lengths are known, first, assign a variable for the length of the third side.
Let x be the length of the unknown side.
Use the Triangle Inequality Theorem to write the three inequalities.
x + 11x > 19
x + 19 > 11
11 + 19 > x
Solve each inequality.
x > 8
x > -8
30 > x
Now find the range of values that satisfies all three inequalities.
The range between 8 and 30 satisfies all 3 inequalities. Therefore, this triangle's third side lengths range is 8cm < x < 30cm.
3. Find the measure of the angle indicated.
Answer:
94°
Step-by-step explanation:
Interior angles:
m<C = 49°
m<D = ?
Angles CBD and CBY are supplementary.
m<CBD = 180° - 143° = 37°
m<C + m<D + m<CBD = 180°
49° + m<D + 37° = 180°
m<D = 94°
14. In a box of 120 holiday ornaments, 75% are green and the rest are red. Peter removes green ornaments
from the box until only 60% of the ornaments in the box are green. How many green ornaments did
Peter remove from the box?
bluco
(A) 40
(B) 30
(C) 55
(D) 45
(E) Other
The green ornaments that Peter remove from the box will be; 30
What is the probability?Probability refers to a possibility that deals with the occurrence of random events. The probability of all the events occurring need to be 1.
We are given that box of 120 holiday ornaments, 75% are green and the rest are red.
Therefore, 120 ornaments = 100%
75% are green = 75% of 120
0.75 x 120 = 90
And the rest are red means
120 - 90 = 30
Peter removes green ornaments from the box until only 60% of the ornaments in the box are green that means;
60% of 90
0.60 x 90 = 54
Then the green ornaments that Peter remove from the box will be; 30
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Felipe places a bottle of water inside a cooler. As the water cools, its temperature Ct in degrees Celsius is given by the following function, where t is the number of minutes since the bottle was placed in the cooler.C(t) = 10+12e-0.025tFelipe wants to drink the water when it reaches a temperature of 16 degrees Celsius. How many minutes should he leave it in the cooler?Round your answer to the nearest tenth, and do not round any intermediate computations.
The number of minutes Felipe should leave the bottle of water in the cooler is 27.7 minutes
How to determine the number of minutes to leave it in the cooler?From the question, we have the following function that can be used in our computation:
C(t) = 10 + 12e⁻⁰°⁰²⁵ˣ
Where:
C(t) is in degrees CelsiusAns t is the number of minutesAlso from the question, we understand that Felipe wants to drink the water when it reaches a temperature of 16 degrees Celsius
This means that
C(t) = 16
Substitute C(t) = 16 in the above equation, so, we have the following representation
10 + 12e⁻⁰°⁰²⁵ˣ = 16
Evaluate the like terms
12e⁻⁰°⁰²⁵ˣ = 6
Divide both sides by 12
e⁻⁰°⁰²⁵ˣ = 0.5
Take the natural logarithm of both sides
-0.025t = ln(0.5)
So, we have
-0.025t = -0.693
Divide
t = 27.72
Approximate
t = 27.7
Hence, the number of minutes is 27.7 minutes
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What is an equation of the line that passes through the point (8,0)(8,0) and is parallel to the line x+y=5x+y=5?.
The equation of the line that passes through the point (8,0) and is parallel to the line x + y = 5 is x + y = 8.
Two lines are parallel with each other if they do not intersect no matter how much you extend both lines. Parallel lines have equal slopes.
Get the slope of the given line x + y = 5.
y = -x + 5
m = -1
Hence, the equation of the line should also be equal to -1.
Using the point slope form, plug in the values of the slope and the point to set up the equation.
(y - y₁) = m(x - x₁)
(y - 0) = -1(x - 8)
y = -x + 8
Rearranging, x + y = 8.
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what is the probability that the mean time for the sample of 150 returns for this year is greater than 92?
The probability that the mean time for the sample of 150 returns for this year is greater than 92 is 0.95907
Given,
Mean, [tex]\overline x[/tex] = 90 minutes
standard deviation, [tex]\sigma[/tex] = 14 minutes
to find probability that mean for sample 150 returns is greater than 92, [tex]P(\overline x > 92)[/tex]
This means we need to find probability the related z-value of expected mean
where, [tex]z=\frac{\overline x-\mu_x}{\sigma_x}[/tex]
Here,
[tex]\mu_x[/tex]= expected mean =92
[tex]\sigma_x[/tex]=standard deviation for new sample i.e. 150
[tex]\sigma_x[/tex] can be calculated by formula,
[tex]\sigma_x=\frac{\sigma}{\sqrt{n}}\\\\\sigma_x=\frac{14}{\sqrt{150}}\\\\\sigma_x=1.143[/tex]
Now,
[tex]z=\frac{90-92}{1.143}\\\\z=-1.749[/tex]
Now,
[tex]P(\overline x > 92)\\\\=P(z > -1.749)\\\\=1-P(z < -1.749)\\\\=1-0.04093\\\\=0.95907[/tex]
In above calculation, the z-value is determined from the z-table.
Thus, the probability that mean is greater than 92 is 0.95907
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Your question is incomplete, please complete the question.
Can we form a triangle with length 4cm 5cm 9cm?.
Answer:
No. It is not possible to construct a triangle with lengths of its sides 4cm, 5cm and 9cm because the sum of two sides is not greater than the third side:
5 + 4 is not greater than 9.
Step-by-step explanation:
May I have Brainliest please? My next rank will be the highest one: A GENIUS! Please help me on this journey to become top of the ranks! I only need 10 more brainliest to become a genius! I would really appreciate it, and it would make my day! Thank you so much, and have a wonderful rest of your day!
18.92 at the top 11 at the bottom explain your answer PLEASE I HAVE TO SUMMIT THIS IN 19 MIN!
Answer:
1.72
Step-by-step explanation:
Let's solve the problem,
→ 18.92/11
→ 18.92 ÷ 11
→ 1.72
Hence, answer is 1.72.
Translate: the sum of 6 and the quotient of 3 and a number
Answer:
6 + [tex]\frac{3}{y}[/tex]
Step-by-step explanation:
"Sum of" means "this number plus whatever follows." In other words: 6 + ?.
"The quotient of 3 and a number" means 3 divided by said number, so:
6 + 3/x
To furnish a cafeteria, a school can spend $5200 on tables and chairs. Tables cost $200 and chairs cost $40. Each table will have 8 chairs around it. Write and solve a system of equations for x and y. How many tables and chairs will the school purchase?
The number of tables is 100 and the number of chairs purchased is 800.
Given,
In the question:
To furnish a cafeteria, a school can spend $5200 on tables and chairs. Tables cost $200 and chairs cost $40. Each table will have 8 chairs around it.
To write and solve a system of equations for x and y and how many tables and chairs will the school purchase?
Now, According to the question:
We need to form an equation from this given information and solve it for x to find the number of tables and chairs that the school will purchase.
The number of tables is x, so number of chairs is 8x
Total cost of tables=200x
Total cost of chairs=40 × 8x=320x
Total expenditure=200x + 320x=520x
520x = 5200
x = 100
Therefore, the number of tables is 100 and the number of chairs purchased is 800.
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you notice a hot air balloon is sending the elevation H in feet of the balloon is modeled by the function h x equals 6X + 90 where X is the time in second since you first noticed the hot air balloon
The slope-intercept definition of a linear function is given as follows:
y = mx + b.
In which the coefficients are given as follows:
m is the slope, representing in this problem the rate of change of the height of the balloon relative to time.b is the y-intercept of the function, representing the initial height of the balloon.In this problem, the function is:
H(x) = 6x + 90.
Hence the slope and the intercept are given as follows:
m = 6, b = 90.
The domain and the range of the function are given as follows:
Domain is x ≥ 0, as the input variable is time and time cannot be negative.Range is H ≥ 90, as the function starts at the intercept and is increasing.Missing InformationThe problem is given by the image shown at the end of the answer.
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What will be the 75% of 25?.
Answer:
18.75
Step-by-step explanation:
"Of", in math, typically denotes multiplication, which means we multiply 75% and 25 to find "75% of 25":
75% = 0.75
0.75 * 25 = 18.75
Money is invested at two rates of interest. One rate is 8% and the other is 2%. If there is $800 more invested at 8 % than at 2 %. find the amount invested at each
rate if the total annual interest received is $490. Let x = amount invested at 8 % and y = amount invested at 2 %. Then the system that models the problem is
x=y+800
Solve the system by using the method of addition.
0.08x+0.02y = 490
8% is
2% is
Amount invested at rate 8% is, $5060.
Amount invested at rate 2% is, $4260.
What is addition method?
Using the Addition Method to Solve Systems of Equations in Two Variables. The addition approach, often known as the elimination method, is a third strategy for resolving linear equation systems. With this approach, we combine two components that share the same variable but have opposing coefficients, resulting in a sum of zero.
Let, money is invested at two rates of interest.
One rate is 8% and the other is 2%.
There is $800 more invested at 8 % than at 2 %.
Total annual interest received is $490.
Let x = amount invested at 8 % and
y = amount invested at 2 %.
So,
x - y = 800 ..(1)
0.08x + 0.02y = 490 ..(2)
Multiply equation (1) by -8 and equation (2) by 100
-8x + 8y = -6400 ..(3)
8x + 2y = 49000 ..(4)
Adding equation (3) and (4)
(-8x + 8y) + (8x + 2y) = -6400 + 49000
10y = 42600
y = 4260
Plug y = 4260 in equation (1)
x - 4260 = 800
x = 800 + 4260
x = 5060
Hence, amount invested at 8% = $5060.
amount invested at 2% = $4260.
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What is the solution to this system of linear equations 3x 2y 14 5x y 32?.
The solution to the system of linear equation is (x, y) = (6, 2)
What in mathematics is a linear equation?
A linear equation is a first-order (linear) term plus a constant in the algebraic form y=mx+b, where m is the slope and b is the y-intercept.Sometimes, the aforementioned is referred to as a "linear equation of two variables," where x and y are the variables.3x - 2y = 14 (1)
3x - 2y = 14 (1)5x + y = 32 (2)
From (2)
y = 32 - 5x
Substitute y = 32 - 5x into (1)
3x - 2y = 14 (1)
3x - 2(32 - 5x) = 14
3x - 64 + 10x = 14
13x = 14 + 64
13x = 78
x = 78/13
x = 6
Substitute x = 6 into (2)
5x + y = 32 (2)
5(6) + y = 32
30 + y = 32
y = 32 - 30
y = 2
(x, y) = (6, 2)
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The complete question is -
What is the solution to this system of linear equations? 3x – 2y = 14 5x + y = 32 (3, 5) (6, 2) (8, –1) (14, –18)
Answer:
(6,2)
Step-by-step explanation:
i just did the
how to graph (1, 1 1/3) and (2, 2/3) on a cartesian plane? kindly explain how
The points have two coordinates, (x, y)
The first coordinate, x represents the distance from zero on the x-axis,The second coordinate, y represents the distance from zero on the y-axis.To plot a point, mark x coordinate on the x-axis, y-coordinate on the y-axis, then add imaginary lines parallel to x- and y-axis, the intersection of those lines is the point to be plotted.
The points we have:
(1, 1 1/3) and (2, 2/3)See attached, it should be clear visually.
there is a coffee drink made of 4oz of coffee, 3oz of milk, 2.5oz of cream, and 1oz of flavoring. if you have an unlimited amount of flavoring and milk but only 350 oz of cream and 450 oz of coffee, how many ounces of drink can you make? (presume that you cannot make partial servings.)
Answer:
1176 oz of drink
Step-by-step explanation:
112 * 4 = 448
112 * 3 = 336
112 * 2.5 = 280
112 * 1 = 112
What are the 4 main types of mathematical thinking?.
They were based on four key areas
1) Representation,
2) Reasoning and Proof
3) Communication,
4) Problem Solving,
1) Representation:
Students are being challenged to present a mathematical concept in multiple ways. There are five different ways to depict thought:
1) Plaything models
2) Still images
3) Printed signs
4) Verbal/written communication
5) actual circumstances or settings
2) Reasoning and Proof:
The habit of reasoning should serve as a backdrop for the development of key mathematical concepts. Asking questions is the key! Why not? Invite students to make conjectures and then to develop, improve, and assess them since mathematics includes discovery. Additionally, let pupils investigate and articulate their own logic. It's frequently beneficial to expand on what kids already know while teaching them.
Students can use technology and manipulatives to solve problems and test their hypotheses at this point.
3) Communication:
Both a method of transmission and a part of what it means to "do" mathematics, communication in mathematics encompasses both. Teachers must create a safe space where students can attempt to share their ideas in the beginning. Since kids don't naturally communicate in math, teachers must be patient while they learn to do so.
4) Problem solving:
Mathematical problem solving is defined as "participating in a task for which the solution approach is not known beforehand. Students must employ previously learned information to create a solution, and by doing so, they obtain new mathematical understandings. Problem-solving exercises ought to be a regular element of math classes. Problems can be derived from real-world applications and experiences.
Hence we get the required answer.
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a restaurant offers salads with 2 types of lettuce, 3 different toppings, and 3 different dressings. how many different salads could be ordered?
Answer:
36 different salads can be ordered
Step-by-step explanation:
if a(t) is the amount of the investment at time t for the case of continuous compounding, write a differential equation satisfied by a(t). Let the rate be r. Then the amount of the investment must satisfy the differential equation A′ (t) = r A (t)
The initial condition satisfied by A (t) is its value at t = 0. At t=0, no compounding has occurred yet, and the amount is equal to the original amount invested, called the principal. If the principal is P, then the initial condition is A (0) = P
The differential equation that satisfies the given amount of investment is A'(t) = rA(t)
Let the rate of investment = r
The amount of investment must satisfy the differential equation
A'(t) = r A(t)
Initial condition is the value of A(t) at t = 0
No compounding will be applied at t = 0 and the amount is equal to the original amount invested, known as principal.
If the Principal amount is P, then the initial condition is A(0) = P
Hence, the differential equation is A'(t) = rA(t)
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To simulate a toss of a coin we let the digits 0, 1, 2, 3, and 4 correspond to a head and the digits 5, 6, 7, 8, and 9 correspond to a tail. Consider the following game: We are going to toss the coin until we either get a head or we get two tails in a row, whichever comes first. If it takes us one toss to get the head we win $2, if it takes us two tosses we win $1, and if we get two tails in a row we win nothing. Use the following sequence of random digits: 12975 13258 45144The estimated number of tosses in a single trial of the game is?A)2.0B)15/9C)15/11D)11/7E)7/11
As per the given probability, the estimated number of tosses in a single trial of the game is 7/11
Probability:
Basically, the term Probability refers the possibility of happening the particular event.
Given,
Here we have to simulate a toss of a coin we let the digits 0, 1, 2, 3, and 4 correspond to a head and the digits 5, 6, 7, 8, and 9 correspond to a tail. And consider the following game: We are going to toss the coin until we either get a head or we get two tails in a row, whichever comes first. If it takes us one toss to get the head we win $2, if it takes us two tosses we win $1, and if we get two tails in a row we win nothing.
While we looking into the given question we have identified that, the total number possible events is 11.
And we have to find the single trial of the game that is 7.
So, the estimated number of tosses in a single trial of the game is written as,
=> 7/11
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Find the equation of the straight line passing through the point of intersection of the lines 2x - y 4 = 0 and x y 2 = 0and cut with the equal intercept on the axes
The equation of the line having equal intercepts on the axes is:
13x+13y=6.
Given:
the straight lines are:
4x-7y-3 and 2x-3y+1
we are asked to determine the equation of the straight line passing through the point of intersection of the lines 4x-7y-3 and 2x-3y+1 and cut with the equal intercept on the axes.
Let the equation of the line having equal intercepts on the axes be
x/a + y/a =1
x + y = a ... eq(1)
On solving equation 4x-7y-3 and 2x-3y+1 we obtain x = 1/13 and y = 5/13.
{1/13,5/13} is the point of intersection of the two given lines.
Since equation (1) passes through point {1/13,5/13}
{1/13+5/13} = a
⇒ a = 6/13
∴ Equation (1) becomes x+y=6/13
⇒ 13x+13y=6
Thus the required equation of the line is 13x+13y=6.
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Your question is incomplete. Please find the missing content here.
Find the equation of the line passing through the point of intersection of the lines 4x-7y-3 and 2x-3y+1 that has equal intercepts on the axes.
What are the 5 examples of linear equation?.
Examples of linear equations are 2x - 3 = 0, 2y = 8, m + 1 = 0, x/2 = 3, and 3x - y + z = 3.
A linear equation is an algebraic equation of the form y = mx + b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) component are included. Above is sometimes referred to as a "linear equation of two variables," where variables y and x are.
The three primary forms of linear equations are point-slope, standard, and slope-intercept.
Linear equations are a key tool in science that have several real-world applications. They enable researchers to compute rates, define relationships between two variables in the physical world, and make predictions. Linear equations are frequently graphed to identify patterns.
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What is the formula for the sum of integers?.
The sum of integers is: S = n(a + l)/2
Integer numbers are those without fractional or decimal parts. When there are fewer numbers to add, it is possible to determine the sum of integers using basic mathematics. However, we employ the sum of integers formula if we need to add multiple consecutive integers at once. Our computations are made easier, and the amount of time we spend adding is reduced.
The sum of an arithmetic sequence's n terms is what is meant by the sum of integers formula. The formula for the sum of integers is:
S = n(a + l)/2
where,
S = sum of the consecutive integers
n= number of integers
a= first term
l = last term
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minutes. assuming alexander works at this rate for the next hour, which of the following best approximates the number of words he would type in that hour?
the closest estimate of the words he would type in that hour is 3180 at this rate.
Given,
rate of 742/14 units
The unit rate will come out to be 53,
then multiply by 60 since there are often 60 minutes in an hour. So the answer is 3180
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Can an acute triangle measure 90 degrees?.
The acute triangle can not measure 90 degrees because the criteria requires angles to be less than 90 degrees.
Acute triangle is the triangle with all the angles less than 90 degrees. However, the acute angles should always add up to 90 degrees. There are different types of acute triangles such as scalene, isosceles and equilateral triangle.
Acute Equilateral triangle has all the equal sides, acute isosceles triangle has two equal sides and acute scalene triangle has three different sides with different lengths.
Apart from acute angles, there are many other types of angles like obtuse angle and right angle. Right triangle has a 90 degree angle and obtuse triangle has more than 90 degrees angle.
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1212 members of a wedding party are lining up in a row for a photograph. (1) how many ways are there to line up the 1212 people?
The total number of ways to line up 12 people are 479,001,600.
We have 12 members of wedding party. We need to make arrangements for 12 people to line up for a photograph.
If we have total n objects and we need to arrange r objects then it can be done in [tex]^nP_r[/tex] ways which is equivalent to =(n!/(n-r)!)
Now, here we have 12 members for photograph, we are free to choose any of members from 12 members.
So, this can be done in [tex]^1^2P_1_2[/tex] ways which is equivalent to =(12!/(12-12)!)=12!/0!
We know that 0!=1
Therefore,12!/0!=12!=479,001,600
Hence, total number of ways are 479,001,600.
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Chelsea wrote several equations and determined that only one of the equations has exactly one solution. which of these equations has exactly one solution? 4 (x 3) = 7 x minus 6 4 (x 3) 8 = 4 x 20 4 (x 3) 3 x 7 x 12 4 (x 3) 6 = 4 x 9
The equation which has exactly one solution is 4 (x + 3) = 7x – 6, and the solution is x = 6.
To solve the equations, we can use Multiplicative Distribution Law.
The first equation, 4 (x + 3) = 7x – 6, has exactly one solution that is x = 6.
4 (x + 3) = 7x – 6
4x + 12 = 7x – 6
4x – 7x = – 6 – 12
– 3x = – 18
x = 6
The second equation, 4 (x + 3) + 8 = 4x + 20, has all real numbers.
4 (x + 3) + 8 = 4x + 20
4x + 12 + 8 = 4x + 20
4x – 4x = 20 – 12 – 8
0 = 20 – 12 – 8
0 = 0
The third equation, 4 (x + 3) + 3x = 7x + 12, has all real numbers.
4 (x + 3) + 3x = 7x + 12
4x + 12 + 3x = 7x + 12
4x + 3x – 7x = 12 – 12
7x – 7x = 0
0 = 0
The last equation, 4 (x + 3) + 6 = 4x + 9, has no solution. It is a wrong equation.
4 (x + 3) + 6 = 4x + 9
4x + 12 + 6 = 4x + 9
4x – 4x = 9 – 12 – 6
0 = - 9
Hence, by using the Multiplicative Distribution Law, the equation which has exactly one solution is 4 (x + 3) = 7x – 6.
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Answer: (A)
Step-by-step explanation: 4(x + 3) = 7x - 6
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What is the common ratio in the geometric sequence 324 108 36?.
The common ratio is 1/3.
What is common ratio?
In a geometric sequence, ratio of each term to its immediately preceding term is always constant and is known as common ratio.
The common ratio is expressed as the value r. It can be calculated by taking any term in the sequence and dividing it by the term before it.
Here, 108/324 = 1/3 ( it is a constant ratio )
Hence it is a geometric sequence and common ratio is 1/3.
Next terms can be found by multiplying the common ratio with the previous term.
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