The number οf hοurs fοr Shandra wοrking tο wash car is 2 hοurs.
The number οf hοurs fοr Shandra wοrking tο walking dοgs is 9 hοurs.
What is an expressiοn?Mathematical expressiοn is defined as the cοllectiοn οf the numbers variables and functiοns by using οperatiοns like additiοn, subtractiοn, multiplicatiοn, and divisiοn.
Given that;
Shandra is wοrking twο summer jοbs, making $9 per hοur washing cars and $8 per hοur walking dοgs.
Last week Shandra wοrked a tοtal οf 11 hοurs.
Tοtal earned = $90
Nοw,
Tοtal number οf hοurs tο wash car = x
Tοtal number οf hοurs tο walk dοgs = y
Sο, We can fοrmulate;
⇒ 9x + 8y = $90 ... (I)
And, x + y = 11 .. (ii)
Sοlve equatiοn (i) and (ii) we get;
x = 2 hοurs and y = 9 hοurs
Sο, The number οf hοurs fοr Shandra wοrking tο wash car is 2 hοurs.
The number οf hοurs fοr Shandra wοrking tο walking dοgs is 9 hοurs.
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In a rice factory, if each kg of rice needs 1 5 th of total amount of raw paddy, how much amount of raw paddy will be needed to manufacture 3 kg of rice? Total amount of paddy available is 300 kg=
Proportionately, if each kilogram of rice needs ¹/₅ th of the total amount of raw paddy or 60 kg, to manufacture 3 kg of rice, the rice factory needs 180 kg of raw paddy.
How is the quantity determined?The quantity of raw paddy required to manufacture 3 kg of rice can be determined by proportions.
Proportion is the equation of two ratios.
The quantity of raw paddy required by each kg of rice = ¹/₅
The total raw paddy available = 300 kg
¹/₅ of 300 kg = 60 (300 x ¹/₅)
Proportionately, the quantity of raw paddy required for 3 kg of rice = 180 (60 x 3).
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The outside of a closed glass display case measure 22 inches by 15 inches by 12 inches. The glass is half an inch thick. how much air is contained in the case?k
Answer:
V_air = V_inside = 2,600 cubic inches.
Step-by-step explanation:
To find the amount of air contained in the display case, we need to subtract the volume of the glass from the volume of the outside dimensions.
The volume of the outside dimensions of the display case is:
V_outside = 22 * 15 * 12 = 3,960 cubic inches
The glass is half an inch thick, which means it adds 1 inch to each dimension of the display case. Therefore, the inside dimensions of the display case are:
22 - 2(1) = 20 inches
15 - 2(1) = 13 inches
12 - 2(1) = 10 inches
The volume of the inside dimensions of the display case is:
V_inside = 20 * 13 * 10 = 2,600 cubic inches
The volume of the glass is the difference between the outside and inside volumes:
V_glass = V_outside - V_inside = 3,960 - 2,600 = 1,360 cubic inches
Therefore, the amount of air contained in the display case is:
V_air = V_inside = 2,600 cubic inches.
what is .00024 as simple fraction
[tex]0.\underline{00024}\implies \cfrac{000024}{1\underline{00000}}\implies \cfrac{24}{100000}\implies \cfrac{8\cdot 3}{8\cdot 12500}\implies \cfrac{3}{12500}[/tex]
A factory manufactures parts for ceiling in fan based on the data shown in the graph below how many parts can factory manufactor in 14 hours
By answering the presented question, we may conclude that The equation number of pieces that may be manufactured in 14 hours is: y = 12(14) = 168 components.
What is equation?An equation in mathematics is a statement that states the equality of two expressions. An equation is made up of two sides that are separated by an algebraic equation (=). For example, the argument "2x + 3 = 9" asserts that the phrase "2x Plus 3" equals the number "9." The purpose of equation solving is to determine the value or values of the variable(s) that will allow the equation to be true. Equations can be simple or complicated, regular or nonlinear, and include one or more elements. The variable x is raised to the second power in the equation "x2 + 2x - 3 = 0." Lines are utilised in many different areas of mathematics, such as algebra, calculus, and geometry.
The following is the number of pieces that the plant can produce in 14 hours:
168 pieces.
As a result, the equation is as follows:
y = kx.
In where k is a proportionality constant denoting the number of pieces that may be created each hour.
With x = 5, y = 60, and so the constant is given as follows:
k = 60/5
k = 12.
As a result, the equation is:
y = 12x.
The number of pieces that may be manufactured in 14 hours is:
y = 12(14) = 168 components.
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If you are dealt five cards from a standard deck of 52 cards then find the probability of getting one ten and four kings.
Answer:
The probability of getting one ten from the deck of 52 cards is 4/52, since there are four tens in the deck. After one ten is drawn, there are only 51 cards remaining in the deck.
Step-by-step explanation:
The probability of getting four kings from the remaining 51 cards is (4/51) * (3/50) * (2/49) * (1/48), since there are four kings left in the deck after the ten is drawn, and the probability of drawing a king decreases with each card drawn.
Therefore, the probability of getting one ten and four kings is:
(4/52) * (4/51) * (3/50) * (2/49) * (1/48)
= 0.0000026
This is an extremely low probability, since the chances of getting this specific combination of cards is very low.
Ivan's personal information is:
Age
Time at address
Age of auto
Car payment
Housing costs
Checking and
savings accounts
Finance company
reference
Declared
bankruptcy
61
13 years
3 years
$203
Owns Clear
Both
Major credit cards 5
Ratio of debt to
2%
income
PREVIOUS
No
Never
According to the following table, what is his credit score?
27
Answer:
Step-by-step explanation:
Based on the information provided, we can use the following credit score range and corresponding points:
Excellent: 800-850 (23-27 points)
Very good: 750-799 (18-22 points)
Good: 700-749 (13-17 points)
Fair: 650-699 (8-12 points)
Poor: 600-649 (5-7 points)
Bad: below 600 (0-4 points)
Using this range, we can add up the points for Ivan's information:
Age: 23 points (because he is between 60-64 years old)
Time at address: 5 points (because he has lived at his address for more than 10 years)
Age of auto: 5 points (because he has owned his car for 2-4 years)
Car payment: 13 points (because his monthly car payment is between $200-$299)
Housing costs: 23 points (because he owns his home and has no monthly mortgage or rent payment)
Checking and savings accounts: 5 points (because he has both types of accounts)
Finance company reference: 5 points (because he has a reference from a finance company)
Declared bankruptcy: 0 points (because he has never declared bankruptcy)
Adding up all these points, we get a total of 79 points. Based on the credit score range and points listed above, this falls into the "Excellent" category, which corresponds to a credit score between 800-850. Therefore, Ivan's credit score is likely to be in that range.
PLEASE HELP DUE IN 5 MINS
The box plots display measures from data collected when 15 athletes were asked how many miles they ran that day.
A box plot uses a number line from 0 to 13 with tick marks every one-half unit. The box extends from 1 to 3.5 on the number line. A line in the box is at 2. The lines outside the box end at 0 and 5. The graph is titled Group A's Miles, and the line is labeled Number of Miles.
A box plot uses a number line from 0 to 13 with tick marks every one-half unit. The box extends from 5 to 10 on the number line. A line in the box is at 7. The lines outside the box end at 0 and 11. The graph is titled Group B's Miles, and the line is labeled Number of Miles.
Which group of athletes ran the least miles based on the data displayed?
Group B, with a median value of 7
Group A, with a median value of 2
Group B, with narrow spread in the data
Group A, with a wide spread in the data
Based on the data displayed in the two box plots, the group of athletes that ran the least miles is Group A, with a median value of 2.
select the correct answer. of the students in gianna's math class, 28% of the students have Gianna's favorite book, and 36% of the students have seen the movie version of the book. she finds that 20% of the students have both read the book and seen the movie version. what is the probability that a randomly chosen student in gianna's math class has read her favorite book or seen the movie version of the book? (a) 44%, (b)64%, (c)24%, (d)84%.
As a result, the probability that a randomly selected student in Gianna's probability maths class has read or seen the movie adaptation of her favourite book is 44%.
What is probability?Probability is a measure of how likely an event is to occur. It is represented by a number between 0 and 1, with 0 representing a rare event and 1 representing an inescapable event. Switching a fair coin and coin flips has a chance of 0.5 or 50% because there are two equally likely outcomes. (Heads or tails). Probabilistic theory is an area of mathematics that studies random events rather than their attributes. It is applied in many fields, including statistics, economics, science, and engineering.
solve this problem,
P(A or B) = P(A) + P(B) - P(A and B)
P(A) = 28%
P(B) = 36%
P(A and B) = 20%
Using the formula, we can find:
P(A or B) = P(A) + P(B) - P(A and B)
P(A or B) = 28% + 36% - 20%
P(A or B) = 44%
As a result, the probability that a randomly selected student in Gianna's maths class has read or seen the movie adaptation of her favourite book is 44%.
As a result, the right answer is (a) 44%.
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x^2/x^2-16+9x/8x+2x^2
[tex]-15+\frac{25x^2}{8}[/tex]
Solve the equation. 72n–6 = 1
here you go i think im right
Prove the value of the expression (36^5-6^9)(38^9-38^8) is divisible by 30 or 37
Answer:
The given expression is divisible by both 30 and 37
Step-by-step explanation:
First, let's consider the expression (36^5-6^9). We can factor out 6^5 from both terms to get:
(36^5-6^9) = 6^5(6^10-36^3)
Next, let's consider the expression (38^9-38^8). We can factor out 38^8 from both terms to get:
(38^9-38^8) = 38^8(38-1)
Now, we can substitute these factorizations back into the original expression:
(36^5-6^9)(38^9-38^8) = 6^5(6^10-36^3)38^8(38-1)
To show that this expression is divisible by 30, we need to show that it is divisible by both 2 and 3. We can see that 6^5 is divisible by both 2 and 3, so the entire expression is divisible by 2 and 3, and hence divisible by 30.
To show that this expression is divisible by 37, we can use Fermat's Little Theorem, which states that if p is a prime number and a is any integer not divisible by p, then a^(p-1) is congruent to 1 mod p. In this case, p=37 and a=6, so we can write:
6^36 ≡ 1 (mod 37)
Multiplying both sides by 6^10 gives:
6^46 ≡ 6^10 (mod 37)
We can use this congruence to simplify the expression we are interested in:
(36^5-6^9)(38^9-38^8) ≡ (6^10-6^9)(1-38^-1) (mod 37)
Simplifying this expression further gives:
(6^10-6^9)(1-38^-1) ≡ 0 (mod 37)
Therefore, the expression (36^5-6^9)(38^9-38^8) is divisible by both 30 and 37.
The painting shown at the right
has an area of 360 in2. What is
the value of x?
X =
(3x + 2) in.
Required value of x is 20/3 inches.
What is area of the square?
Side × Side
Given, the area of the painting, which is 360 square inches, and we know that the side of the square is (3x + 2) inches. So we can set up an equation,
(3x + 2)² = 360
Expanding the left side,
9x²+ 12x + 4 = 360
Subtracting 360 from both sides,
9x² + 12x - 356 = 0
Now we can use the quadratic formula to solve for x,
[tex]x = \frac{ - b \pm \sqrt{ {b}^{2} - 4ac} }{2a} [/tex]
In this case, a = 9, b = 12, and c = -356. Plugging these values into the formula, we get:
[tex]x = \frac{ - 12 \pm \sqrt{ {12}^{2} - 4 \times 9} }{2 \times 9} \\ = \frac{ - 12 \pm \sqrt{144 - 36} }{18} [/tex]
By solving,we will get [tex]x = - \frac{7}{3} \: or \: \frac{20}{3} [/tex]
Since the side length of the square must be positive, we can ignore the negative solution and conclude that the value of x is 20/3 inches.
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Please help with this question!
Answer:
The distance between the library and museum is 400 yards
Step-by-step explanation:
If an interior angle of a regular polygon has a measure of 120 degrees, how many sides does it have?
Step-by-step explanation:
The formula to find the interior angle of a polygon is 180(n - 2) over n.
So, we know that the interior angle of the polygon which is 120, therefore we can produce this equation, 180(n - 2) over 2 n, equals to 120.
Now we use algebric method to solve for n.
180n − 360 = 120n
60n = 360
n = 6
So, the answer is = 6 sidesTo make blackberry jam, you must cook blackberries until they become juice. If 4 cups of blackberries give you 1 1/3 cups of juice, find the constant of proportionality of juice to blackberries.
I don't need sleep, I need answers.
The constant of proportionality of juice to blackberries is 3. This means that for every cup of blackberries, you will get 1/3 cup of juice.
Describe Constant of proportionality ?The constant of proportionality is a mathematical term used to describe the relationship between two quantities that are directly proportional to each other. When two quantities are directly proportional, they vary in proportion to each other such that if one quantity doubles, the other also doubles. The constant of proportionality is the number that relates the two quantities together.
To find the constant of proportionality, we need to divide the amount of juice by the amount of blackberries.
Let x be the amount of blackberries required to make 1 cup of juice. Then we have:
4 cups of blackberries = 1 1/3 cups of juice
Divide both sides by 1 1/3 cups of juice:
4 cups of blackberries / (4/3) cups of juice = 3 cups of blackberries / cup of juice
So the constant of proportionality of juice to blackberries is 3. This means that for every cup of blackberries, you will get 1/3 cup of juice.
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Giving a test to a group of students, the grades and gender are summarized below
The probability that the student was male AND got A is 5/28.
Define probabilityProbability is a measure of the likelihood that an event will occur. It is expressed as a number between 0 and 1, where 0 represents an impossible event and 1 represents a certain event. A probability of 0.5 (or 50%) indicates that the event is equally likely to occur or not to occur.
There are 56 students total
There are 10 males who got a A.
P(male AND got a A) = (number of males who got a A)/(number total) = (10)/(56) =5/28
Answer in decimal form=0.17
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PLEASE HELP AND GIVE A GOOD EXPLANATION!!!!!
The statement that is true about the graph shown is the distribution of the data is symmetrical so the mean and the median are likely within 1000 - 1099 photocopies category (A).
When is the data symmetrical?A graph is symmetrical when it has a line of symmetry, which is a vertical or horizontal line that divides the graph into two equal halves that are mirror images of each other. A graph is symmetrical if it has the same shape on both sides of the line of symmetry.
This happens in the graph presented and as a result other measures such as median and mean are expected to be in the center too.
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What is the interquartile range (IQR) of the data set represented by this box
plot?
0
10
A. 55
B. 37
OC. 24
D. 12
← PREVIOUS
18 25 37
20
30
40
49 55
50
60
The interquartile range (IQR) of the data set represented by this box plot is 24.
What is IQR and how it is find?The interquartile range, or IQR, can be determined in four easy steps: Sort the facts in ascending order of importance. locate the centre. Do the lower and higher half of the data's median calculations. Upper and lower median differences make up the IQR.
We must determine the difference between the third quartile (Q3) and the first quartile (Q1) in order to determine the interquartile range (IQR) of the data set depicted by this box plot.
We can see from the box plot that the range of the box is 18 to 49, which implies that Q1 is 25 and Q3 is 49. Therefore,
IQR = Q3 - Q1 = 49 - 25 = 24
So, none of the choices provided are the correct response. The data collection represented by this box plot has an IQR of 24, which is 24.
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Complete question:
What is the interquartile range (IQR) of the data set represented by this box plot?
A. 55
B. 37
C. 24
D. 12
Solve2x^2-6x+5 by completing the square
Airplanes are sometimes used to fight fires. A certain airplane can deliver 4x10^4 liters of water in one trip. How much water can this airplane deliver in 38 trips?
Write your answer in scientific notation.
Answer:
1.52×10⁶ liters of water
Step-by-step explanation:
38(4×10⁴)
Determine any data values that are missing from the table, assuming that the data represent a linear function. x y 1 6 2 10 3 a. 6 c. 16 b. 15 d. 14 Please select the best answer from the choices provided
The missing data value in the table of values is y = 14
Determining the missing data valuesWe can use the two given data points (1,6) and (2,10) to find the equation of the linear function that represents the data.
First, we can use the slope formula to find the slope of the line:
slope = (change in y) / (change in x) = (10-6) / (2-1) = 4/1 = 4
Next, we can use the point-slope formula to find the equation of the line using one of the given points. Let's use (1,6):
y - 6 = 4(x - 1)
We can simplify this equation to slope-intercept form (y = mx + b) by solving for y:
y = 4x + 2
Now we can use this equation to find the missing data value when x = 3:
y = 4(3) + 2 = 14
Therefore, the missing data value is y = 14, and the correct answer is (d) 14.
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Find the coordinates of the circumcenter of triangle ABC with vertices of A(0,3), B(0,-1), and C(6,1).
Answer:
the circumcenter of triangle ABC is the point (3, 7/3).
Step-by-step explanation:
To find the circumcenter of triangle ABC, we need to find the intersection point of the perpendicular bisectors of its sides.
First, let's find the midpoint and slope of each side of the triangle:
Side AB: midpoint = (0,1), slope = undefined (vertical line)
Side AC: midpoint = (3,2), slope = -1/3
Side BC: midpoint = (3,-1/2), slope = 3/2
Next, we need to find the equations of the perpendicular bisectors of each side. The perpendicular bisector of a segment is the line that passes through its midpoint and is perpendicular to the segment.
Perpendicular bisector of AB: x = 0 (it is a vertical line passing through the midpoint of AB)
Perpendicular bisector of AC: passes through the midpoint (3,2) and has a slope of the negative reciprocal of AC's slope, which is 3
Therefore, the equation of the perpendicular bisector of AC is y - 2 = -1/3 (x - 3), which simplifies to y = -x/3 + 8/3
Perpendicular bisector of BC: passes through the midpoint (3,-1/2) and has a slope of the negative reciprocal of BC's slope, which is -2/3
Therefore, the equation of the perpendicular bisector of BC is y + 1/2 = -2/3 (x - 3), which simplifies to y = -2x/3 + 7/2
Now we need to find the intersection point of any two of these perpendicular bisectors. We can choose any two, but it is usually easier to choose the ones that have equations in slope-intercept form, which are the perpendicular bisectors of AC and BC.
Solving the system of equations y = -x/3 + 8/3 and y = -2x/3 + 7/2, we get x = 3 and y = 7/3.
Therefore, the circumcenter of triangle ABC is the point (3, 7/3).
Set up a proportion and solve for x
Thus value of x in the given the proportion is 7.
How to find the value of x?Here, both triangles are congruent due to sss congruency,
Thus,
6 : 12
6k = 12
k = 12/6
k = 2
Also, The expressions are
(x+2) : 3x - 3
(x+2)k = 3x - 3
(x+2)2 = 3x - 3
2x + 4 = 3x - 3
3x - 2x = 4 + 3
x = 7
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What is the probability that out of 175 chicks hatched on Peeper Farm, at
least 90 will be female? Assume that males and females are equally probable,
and round your answer to the nearest tenth of a percent.
OA. 3.5%
OB. 99.7%
C. 38.1%
D. 88.7%
Use the matrix calculator to solve this linear system for cost per hour of each machine. 100x1 + 130x2 + 16x3 = 3,528 120x1 + 180x2 + 28x3 = 4,864 160x1 + 190x2 + 10x3 = 4,920 x1 = x2 = x3 =
Answer:
x1 = 10
x2 = 16
x3 = 28
Step-by-step explanation:
edge 2023
This shape is made up of one half-circle attached to a square with side lengths 17 inches. You can use 3.14 as an approximation for pie
Answer:
109.68
Step-by-step explanation:
The side lengths are 24 not 17 according to the directions.
The sides of the square would be 24 + 24 + 24 = 72
Circumference of the 1/2 circle:
c = [tex]\frac{2\pi r}{2}[/tex] We are dividing by 2 because we have 1/2 of a circle
c= [tex]\frac{(2)(3,14)(12)}{2}[/tex] The diameter is 24 so the radius is 12
c = 37.68
Add 72 + 37.68 = 109.68
Helping in the name of Jesus.
find the value of 8w+6 given that -7w+1=8
Answer: -2
Step-by-step explanation:
-7w + 1 = 8
Subtract 1 from both sides
-7w + = 7
Divide -7 from both sides
w = -1
then
8(-1) = -8
-8 + 6 = -2
Let G := {a1, . . . , an} be a finite abelian group such that n := |G| is odd. Prove that
a1 + · · · + an = 0.
We have shown that the sum of the elements in G is equal to zero, as required.
What is abelian group?An abelian group, also known as a commutative group in mathematics, is a set of elements where the outcome of applying the group operation on two elements of the set does not depend on the order in which the elements are written. The group operation is hence commutative. The integers and real numbers both form abelian groups when addition is used as an operation, and the idea of an abelian group can be seen as a generalisation of these cases.
We can prove this statement using the fact that the sum of the elements in an abelian group is always equal to zero.
Since G is a finite abelian group, every element ai in G has an inverse, denoted by -ai. Furthermore, since G is abelian, the order in which we add the elements does not matter. Therefore, we can rearrange the terms in the sum a1 + a2 + ... + an so that all of the terms are paired with their inverse:
a1 + a2 + ... + an = (a1 + (-a1)) + (a2 + (-a2)) + ... + (an + (-an))
Since n is odd, we have an odd number of elements in G, which means that we have an odd number of pairs of the form ai + (-ai). Therefore, there is exactly one element in the sum that is not paired with its inverse, which is either ai or -ai for some i.
Without loss of generality, suppose that ai is the element that is not paired with its inverse. Then, we have:
a1 + a2 + ... + ai + ... + an = (a1 + (-a1)) + (a2 + (-a2)) + ... + (ai + (-ai)) + ... + (an + (-an))
= 0 + 0 + ... + 0 + ai + (-ai) + ... + 0
= ai - ai
= 0
Therefore, we have shown that the sum of the elements in G is equal to zero, as required.
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The pentagonal prism below has a height of 13.4 units and a volume of 321.6 units ^3 . Find the area of one of its bases.
The area of one of the bases of the pentagonal prism is approximately 172.96 square units.
What is Area ?
Area is a measure of the amount of space inside a two-dimensional shape, such as a square, rectangle, triangle, circle, or any other shape that has a length and a width. It is usually measured in square units, such as square inches, square feet, or square meters.
To find the area of one of the bases of the pentagonal prism, we need to use the formula for the volume of a pentagonal prism, which is:
V = (1÷2)Ph,
where V is the volume, P is the perimeter of the base, h is the height of the prism.
Since we know that the height of the prism is 13.4 units and the volume is 321.6 , we can solve for the perimeter of the base:
V = (1÷2)Ph
321.6 = (1÷2)P(13.4)
P = 48
The perimeter of the base is 48 units.
To find the area of one of the bases, we can use the formula for the area of a regular pentagon, which is:
A = (5÷4) [tex]s^{2}[/tex]* tan(π÷5)
where A is the area of the pentagon and s is the length of a side.
Since the pentagon is regular, all sides have the same length. Let's call this length "x".
The perimeter of the pentagon is 48 units, so we have:
5x = 48
x = 9.6
Now we can use the formula for the area of a regular pentagon to find the area of one of the bases:
A = (5÷4)[tex]x^{2}[/tex] * tan(π÷5)
A = (5÷4)(9.6*9.6) * tan(π÷5)
A ≈ 172.96
Therefore, the area of one of the bases of the pentagonal prism is approximately 172.96 square units.
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what is the sum of the first 30 terms of the sequence 2,5,8,11,14,17
The first 30 terms of the sequence are 89.
What is an arithmetic sequence?A progression or sequence of numbers known as an arithmetic sequence maintains a consistent difference between each succeeding term and its predecessor. The common difference in that mathematical progression is the constant difference.
Here, we have
Given: the sequence 2,5,8,11,14,17.
We have to find the first 30 terms of the sequence.
It is known that the value of the first term (a) = 2.
Different from the sequence (d) = 5 - 2 = 3.
To solve this problem, we use the formula [tex]$ \rm S_n=(\frac{n}{2})(2a+d(n-1))[/tex]
[tex]$ \rm S_{30}=(\frac{30}{2})(2(2)+(3)(30-1))[/tex]
[tex]$ \rm S_{30}=(15)(4+(3)(29))[/tex]
S₃₀ = 1365
Hence, the first 30 terms of the sequence are 89.
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