Answer:
f(7) = 41
Step-by-step explanation:
6(7)-1
42-1
= 41
CAN SOMEONE HELP ME??
Answer:
Im not sure thats something we can help with
Step-by-step explanation:
very blurry and confussing
Q1. Solve the below two questions (i and ii). 1. Mohamed had AED 14,000 in credit card debt when he graduated from college. The balance increased by 2% each month due to interest, and Mohamed could only make payments of AED 300 per month. Write a recursive formula for the balance of his account each month. ii. Find the first three iterates x1, x2 and x3 for f(x) = 5x +4 an initial value of xo= 2. A. 14,74,374. B. 2,14,74 C. 74,374,572 D. 0,14,74 Q2. i. Find the term described: Second term in expansion of (y-2x)* A. -y³x B. -8y³x C. 8y³x D. -8x³y ii. What is row 7 of Pascal's Triangle? A. 1,5,10,5,1 B. 1,5,10,10,5,1 C. 1, 7, 21, 35, 35, 21, 7, 1 D. 1,7, 21, 35, 21, 7,1 iii. Expand completely (2x³ + 1)³ Q3. i. The sum of the first n odd numbers is equal to the nth square. 1+3+5+7+...+ (2n-1) = n² To prove this by mathematical induction, what will be the induction assumption? A. The statement is true for n=k: 1 + 3 +5+7+...+(2k-1) = k² B. The statement is true for n = 1: 2x1 - 1 = 1² C. The statement is true for n=k+1:1+3+5+7+...+(2k-1)+(2k + 1) = (k+ 1)² D. The statement is true for n=k+ 1: 1+3+5+7+...+(2k-1)+(2k + 2) = (k+ 2)² Prove that 7"-4" is divisible by 3 Q4. On a factory feedback form, employees were asked to rate the work atmosphere at the factory using a score from 1 to 5, where 1 was poor and 5 was very good. distrubtion of X. Score, X Frequency 1 3 2 4 3 10 4 23 5 10 i. Use the frequency distribution shown to construct a probability distribution for the random variable X. Find the expected value of the distribution ii.
In question 1, the recursive formula for the balance of Mohamed's credit card debt each month can be written as Bₙ = 1.02Bₙ₋₁ - 300, where Bₙ represents the balance in the nth month.
In question 2, (i) The second term in the expansion of (y-2x)³ is option B: -8y³x.
(ii) Row 7 of Pascal's Triangle is option B: 1, 5, 10, 10, 5, 1.
(iii) Expanding (2x³ + 1)³ completely yields 8x⁹ + 12x⁶ + 6x³ + 1.
In question 3, To prove the statement that the sum of the first n odd numbers is equal to the nth square (1+3+5+7+...+(2n-1) = n²) by mathematical induction, the induction assumption is option A: The statement is true for n=k: 1 + 3 + 5 + 7 + ... + (2k-1) = k².
In question 4, the probability distribution for the random variable X, representing the work atmosphere scores, can be constructed using the given frequency distribution.
In question 1(i), the recursive formula Bₙ = 1.02Bₙ₋₁ - 300 represents the balance of Mohamed's credit card debt each month. The balance increases by 2% each month due to interest and decreases by the monthly payment of AED 300.
In question 1(ii), to find the first three iterates of the function f(x) = 5x + 4 starting with x₀ = 2, we substitute the value of x₀ into the function and then repeatedly apply the function to obtain x₁, x₂, and x₃.
In question 2, the answers are obtained as follows:
(i) To find the second term in the expansion of (y-2x)³, we use the binomial expansion formula (a-b)³ = a³ - 3a²b + 3ab² - b³. In this case, a = y and b = 2x. Using the formula, the second term is -3a²b = -3(y)²(2x) = -3y²(2x) = -6xy². However, in the given options, the term is in the form -8y³x. To match this form, we can rewrite -6xy² as -8y³x. Therefore, the second term is -8y³x, which corresponds to option B.
(ii) Pascal's Triangle is a triangular arrangement of numbers where each number is the sum of the two numbers above it. Row 7 of Pascal's Triangle is 1, 6, 15, 20, 15, 6, 1. However, none of the options matches this row. Thus, the given options are incorrect, and the correct row 7 of Pascal's Triangle is not provided.
(iii) To expand (2x³ + 1)³ completely, we use the binomial expansion formula (a + b)³ = a³ + 3a²b + 3ab² + b³. In this case, a = 2x³ and b = 1. Applying the formula, we obtain (2x³ + 1)³ = (2x³)³ + 3(2x³)²(1) + 3(2x³)(1)² + (1)³. Simplifying this expression gives 8x⁹ + 12x⁶ + 6x³ + 1.
Therefore, the second term in the expansion of (y-2x)³ is -8y³x, the correct row 7 of Pascal's Triangle is not provided, and the expansion of (2x³ + 1)³ is 8x⁹ + 12x⁶ + 6x³ + 1.
In question 3, To prove the given statement using mathematical induction, we need to follow the steps of induction: base case and induction step.
The base case is when n = 1. We need to show that the statement is true for n = 1. Evaluating the left-hand side (LHS) and right-hand side (RHS) of the equation, we have 1 = 1², which is true.
Next, we assume that the statement is true for some value k, which is the induction assumption. In this case, the assumption is that 1 + 3 + 5 + 7 + ... + (2k-1) = k².
Now, we need to prove that the statement holds for n = k+1. This is the induction step. We add (2k+1) to both sides of the assumption and evaluate the LHS and RHS. The LHS becomes 1 + 3 + 5 + 7 + ... + (2k-1) + (2k+1), and the RHS becomes (k+1)².
By applying the induction assumption and simplifying the LHS, we can show that it is equal to (k+1)², proving the statement for n = k+1.
Therefore, option A: The statement is true for n=k: 1 + 3 + 5 + 7 + ... + (2k-1) = k² is the correct induction assumption for proving the sum of the first n odd numbers is equal to the nth square.
Regarding the second part, to prove that 7ⁿ - 4ⁿ is divisible by 3, we can use mathematical induction. By verifying the base case (n = 1) and assuming the statement is true for n = k, we can prove that it holds for n = k+1.
In question 4, to construct the probability distribution for the random variable X, we use the frequency distribution to determine the probabilities associated with each score. The expected value of the distribution can be calculated by multiplying each score by its corresponding probability and summing the results.
By understanding the concepts and applying the appropriate formulas and techniques, the solutions to these questions can be obtained.
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Which of the binomials below is a factor of this trinomial? 4x^2 - 4x - 120
The binomial x - 12 is a factor of the trinomial [tex]4x^2 - 4x - 120.[/tex]
To determine which binomial is a factor of the trinomial [tex]4x^2 - 4x - 120,[/tex] we can use the factor theorem and test each binomial by dividing it into the trinomial.
The binomials given are:
A. x + 12
B. 2x + 5
C. 2x - 5
D. x - 12
To test each binomial, we perform polynomial division:
A. x + 12:
Dividing [tex]4x^2 - 4x - 120 by x + 12,[/tex] we find that there is a remainder, indicating that x + 12 is not a factor of the trinomial.
B. 2x + 5:
Dividing [tex]4x^2 - 4x - 120[/tex] by 2x + 5, we also find that there is a remainder, so 2x + 5 is not a factor.
C. 2x - 5:
Dividing [tex]4x^2 - 4x - 120[/tex] by 2x - 5, we again find a remainder, indicating that 2x - 5 is not a factor.
D. x - 12:
Dividing [tex]4x^2 - 4x - 120[/tex] by x - 12, we find that there is no remainder, indicating that x - 12 is a factor of the trinomial.
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the following circle has an area of 81 pi . angles x, y, and z are angles created by two straight lines that intersect the center of the circle, and points a, b, c, and d are all points on the circle. if the measure of angle y is \frac{5 pi }/{9}radians greater than the measure of angle x, what is the length of minor arc cd?
The length of minor arc CD is [tex]\( \frac{5\pi}{3} \)[/tex] units.
1. Let's start by finding the measure of angles x and y. We know that the area of the circle is [tex]\(81\pi\)[/tex], and since the area of a circle is given by the formula [tex]\(A = \pi r^2\[/tex]), we can equate it to find the value of [tex]\(r\). So, \(81\pi = \pi r^2\).[/tex]
Solving this equation, we get [tex]\(r^2 = 81\)[/tex], which gives us [tex]\(r = 9\)[/tex].
2. Since points A, B, C, and D are on the circle, we can consider the angles formed by the lines connecting these points to the center of the circle.
3. Let's assume that the measure of angle x is [tex]\(a\)[/tex] radians. As per the given information, the measure of angle y is [tex]\( \frac{5\pi}{9} \)[/tex] radians greater than angle x. So, the measure of angle y is [tex]\(a + \frac{5\pi}{9}\)[/tex] radians.
4. Since angles x and y are formed by lines from the center of the circle, the sum of their measures should be equal to [tex]\(2\pi\)[/tex] radians. So we can write the equation [tex]\(a + (a + \frac{5\pi}{9}) = 2\pi\).[/tex]
5. Simplifying the equation, we get [tex]\(2a + \frac{5\pi}{9} = 2\pi\).[/tex]
6. Solving for [tex]\(a\)[/tex], we find [tex]\(a = \frac{4\pi}{9}\).[/tex]
7. Now that we have the value of angle x, we can find the measure of angle z. Again, since the sum of angles formed by lines from the center of the circle is [tex]\(2\pi\)[/tex], we can write the equation [tex]\(a + (a + \frac{5\pi}{9}) + z = 2\pi\)[/tex].
8. Substituting the known values, we have [tex]\( \frac{4\pi}{9} + (\frac{4\pi}{9} + \frac{5\pi}{9}) + z = 2\pi\)[/tex].
9. Simplifying the equation, we get [tex]\( \frac{13\pi}{9} + z = 2\pi\)[/tex].
10. Solving for [tex]\(z\)[/tex], we find [tex]\(z = \frac{5\pi}{9}\)[/tex].
11. Angle z represents the measure of the central angle that corresponds to minor arc CD.
12. The length of a minor arc in a circle is given by the formula [tex]\(s = r\theta\)[/tex], where [tex]\(r\)[/tex] is the radius of the circle and [tex]\(\theta\)[/tex] is the central angle in radians.
13. Substituting the known values, we have [tex]\(s = 9 \cdot \frac{5\pi}{9} = \frac{5\pi}{3}\)[/tex].
14. Therefore, the length of minor arc CD is [tex]\( \frac{5\pi}{3} \)[/tex] units.
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Please help ! due by 11:59
Answer:
straighter pic?
Step-by-step explanation:
Current Assets : $ 950.000 Current liabilities: $ 450.000 Current Cast of goods sold = $1.200.000 Quick ratio = 1,56 Q Calculate inventory turnover a) 4,8 timer b 35 times c) 3,0 timer.
d) 4,5 tiner
a) From the given information , upon calculation , the inventory turnover is 4.8 times.
To calculate the inventory turnover, we need to divide the cost of goods sold (COGS) by the average inventory. The quick ratio given is 1.56, which can help us find the average inventory.
Quick Ratio = (Current Assets - Inventory) / Current Liabilities
Rearranging the formula, we can find the inventory:
Inventory = Current Assets - (Quick Ratio * Current Liabilities)
= $950,000 - (1.56 * $450,000)
= $950,000 - $702,000
= $248,000
Now, we can calculate the inventory turnover:
Inventory Turnover = COGS / Average Inventory
Given that COGS is $1,200,000 and the average inventory is $248,000:
Inventory Turnover = $1,200,000 / $248,000
≈ 4.8 times
The inventory turnover is approximately 4.8 times. This means that the company sells and replaces its inventory about 4.8 times during the given period. A higher inventory turnover generally indicates efficient inventory management, as it implies that the company is selling its goods quickly and minimizing the risk of inventory obsolescence or spoilage.
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10. The average annual expenditure on health insurance per family is shown in the following table. Annual Expenditure on Health Insurance per Family Number of Years since 2000 Average Annual Expenditure on Health Insurance (dollars) 0 983 1 1061 2 1168 3 1252 Write the equation of the line of "best fit" that most accurately represents these data. Identify what each variable represents.
Answer:
not sure hmmm
Step-by-step explanation:
Find the slope of the line on the graph.
Write your answer as a fraction or a whole
number not a mixed number or decimat.
Answer:
M= -3
Step-by-step explanation:
The two points on the graph are (0,4) and(1,1), using the slope formula you get a slope of - 3
Solve= r = n/2(a+K) ;for K.
Answer: r=0
It’s very easy to do and make sure to simplify
You need $37.45 for a
new outfit, so your mom
gives you $13.25. Two
friends offer to split the
difference. How much
do they each
contribute?
Answer:
24.2
Step-by-step explanation:
37.45-13.25=24.2
24.2/2=12.1
each friend contributes $12.1
In a certain arithmetic sequence, the 10th term is equal to 56 and the 12th term is equal to 108. What must the 11th term be?
Answer:
82
Step-by-step explanation:
The formula is:
(n*26) - 204
Equation is (n * a) + x
n = 10 => 10a + x = 56 => x = 56-10a
n = 12 => 12a + x = 108 => x = 108 - 12a
56-10a = 108-12a
2a = 52
a = 26
x = 56 - 10a = 56 - (10*26) = -204
Equation = (26 * n) - 204
n = 11 => (26 *11) - 204 = 286 - 204 = 82
The 11th term will be equal to 82
What is arithmetic progression?An arithmetic progression or arithmetic sequence is a sequence of numbers such that the difference between the consecutive terms is constant.
The formula is:
Equation is (n * a) + x
(n*26) - 204
n = 10 => 10a + x = 56 => x = 56-10a
n = 12 => 12a + x = 108 => x = 108 - 12a
56-10a = 108-12a
2a = 52
a = 26
x = 56 - 10a = 56 - (10*26) = -204
Equation = (26 * n) - 204
n = 11 => (26 *11) - 204 = 286 - 204 = 82
Hence the 11th term will be equal to 82.
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which of the following are always perpendicular to a side of a triangle? (2 answers)
a. altitude
b. perpendicular bisector of a side
c. midsegment
d. angle bisector
e. median
f. an inscribed circle
The following are always perpendicular to a side of a triangle : a) altitude and b) perpendicular bisector of a side and therefore, option a and b are the correct answers.
Altitude is a line segment that is drawn from the vertex, perpendicular to the opposite side and perpendicular bisector of a side is a line that is perpendicular to a segment at the midpoint.
Angle bisector divides the angle into two equal parts and it doesn't have to be perpendicular to any side of the triangle. Median is a line segment from vertex to midpoint of the opposite side and it is not always perpendicular to any side of the triangle.
The midsegment is a line segment drawn from the midpoint of one side of a triangle to the midpoint of another side. It is not always perpendicular to any side of the triangle. An inscribed circle is a circle inside a triangle that is tangent to all three sides. It is not always perpendicular to any side of the triangle.
Correct answers are : option a and b.
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Find the length of the unknown side. Round your answer to the nearest whole number.
Answer:
Okay I mayyy be wrong on this but, is it 12?
Answer:
Hippo potamus
Step-by-step explanation:
Cause the hypotenuse said so.
One cell phone company offers a plan that cost $29.99 and includes unlimited nights and weekend minutes. Another phone company offers a plan that cost $19.99 and charges $0.35 per minute during nights and weekends. For what number of night and weekend minutes does the second company's plan cost more than the first company's plan
Answer:
t ≥ 29
Step-by-step explanation:
Given the following :
Company A:
Cost of plan = $29.99
Night and weekend minutes = unlimited
Company B :
Cost of plan = $19.99
Night and weekend = $0.35 per minute
Let number of night and weekend minute = t
For what number of night and weekend minutes does the second company's plan cost more than the first company's plan
Company A > Company B
(19.99 + 0.35*t) > 29.99
19.99 + 0.35t > 29.99
0.35t > 29.99 - 19.99
0.35t > 10
t > 10/0.35
t > 28.57
28.57 to the nearest whole number = 29
t ≥ 29
find the unknown angle
how to solve this problem??
a)Find x and y
BCD=ACB+ACD
180°=ACB+150°
ACB=180°-150°
ACB=30°
since triangle ABC is an isosceles triangle
therefore, AB=BC
BAC=ACB
y=ACB=30°
ACB+ABC+BAC=180°
ABC+2BAC=180°
ABC+2*30°=180°
ABC=180°-60°
ABC=120°
X=120°
Bill invested $2000 at a rate of 5% compounded annually. What is the value of his investment at the end of 5 years? Round answer with money appropriately (to the nearest cent)
Answer:
Step-by-step explanation:
P: the principal, amount invested
A: the new balance
t: the time
r: the rate, (in decimal form)
n: the number of times it is compounded.
Ex2:Suppose that $5000 is deposited in a saving account at the rate of 6% per year. Find the total amount on deposit at the end of 4 years if the interest is:
P =$5000, r = 6% , t = 4 years
a) simple : A = P(1+rt)
A = 5000(1+(0.06)(4)) = 5000(1.24) = $6200
b) compounded annually, n = 1:
A = 5000(1 + 0.06/1)(1)(4) = 5000(1.06)(4) = $6312.38
c) compounded semiannually, n =2:
A = 5000(1 + 0.06/2)(2)(4) = 5000(1.03)(8) = $6333.85
d) compounded quarterly, n = 4:
A = 5000(1 + 0.06/4)(4)(4) = 5000(1.015)(16) = $6344.93
e) compounded monthly, n =12:
A = 5000(1 + 0.06/12)(12)(4) = 5000(1.005)(48) = $6352.44
f) compounded daily, n =365:
A = 5000(1 + 0.06/365)(365)(4) = 5000(1.00016)(1460) = $6356.12
Answer:
2552.60
Step-by-step explanation:
in a classroom with some girls and some boys, four students are chosen at random to lead a class discussion. all of those chosen are boys. this would be highly unlikely to happen by chance alone if the probability of it happening is:
The Probability of all four boys being chosen is only 1.8%. This means that it would be highly unlikely to occur by chance alone.
In a classroom with some girls and some boys, four students are chosen at random to lead a class discussion. All of those chosen are boys. The probability of this happening would be highly unlikely to occur by chance alone.
In probability theory, the probability of an event is a measure of the possibility of the event occurring. It is expressed as a value between zero and one, with zero representing impossibility and one representing certainty.
The formula for calculating the probability of an event is the number of ways the event can occur divided by the total number of possible outcomes. In this case, the probability of four boys being chosen from a mixed group of boys and girls is calculated as follows:
The probability of the first boy being chosen is the number of boys divided by the total number of students. If there are 30 students in the class, 15 boys, and 15 girls, then the probability of the first boy being chosen is 15/30.
The probability of the second boy being chosen is the number of remaining boys divided by the total number of remaining students. After the first boy is chosen, there are 14 boys and 29 students left. Therefore, the probability of the second boy being chosen is 14/29.
The probability of the third boy being chosen is the number of remaining boys divided by the total number of remaining students. After the second boy is chosen, there are 13 boys and 28 students left. Therefore, the probability of the third boy being chosen is 13/28.
The probability of the fourth boy being chosen is the number of remaining boys divided by the total number of remaining students.
After the third boy is chosen, there are 12 boys and 27 students left.
Therefore, the probability of the fourth boy being chosen is 12/27.To find the probability of all four boys being chosen, we multiply the probabilities of each event together:15/30 * 14/29 * 13/28 * 12/27 = 0.018 or 1.8%
Therefore, the probability of all four boys being chosen is only 1.8%. This means that it would be highly unlikely to occur by chance alone.
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What is the range of f?
Your a sped this is so easy
Look at this set of ordered pairs:
(16, 18)
(19, 0)
(16,4)
Is this relation a function?
Answer:
No, I don't think so.
Step-by-step explanation:
pic below...............
Answer:
the answer is that you need a pic for me to answer.
Step-by-step explanation:
what hero will u pick in xmen
a
quicksilver
b
nightcrawler
c
mystique
d
cyclops
Answer: A Quick silver
Step-by-step explanation:
he can run fast and is cool
Answer:
mystique
Step-by-step explanation:
shes just the perfect spy, with her no mission can go wrong
VS is the perpendicular bisector of XZ. What is the length of XS?
Answer:
9
Step-by-step explanation:
the length is half of 18
which is .. 9
here is a better pic
Answer:
domain: (-5, infinity)
range: (-infinity, 2)
Step-by-step explanation:
Answer:
Domain= (-5,3]
Range= (-2,2]
Step-by-step explanation:
Range is the Y axis the open circle indicates that you would use ( insead of [ because the -2 is not actually included. the closed circle indicated you would use ] because the 2 is included. Domain is the X axis and its pretty much the same thing. always be sure to put the losest number first though.
hope this helped
what is the equation of a line perpendicular to 2x-3y=6 and passes through the point (6,-1) ?
The equation of a line perpendicular to 2x-3y=6 and passes through the point (6,-1) is y=2/3x-5.
The given line 2x-3y=6 has a slope of m=2/3.
A line perpendicular to this line will have a slope that is the negative reciprocal of this slope. Therefore, the slope of the line perpendicular to 2x-3y=6 is -3/2.
Using the point-slope formula to find the equation of the line:y-y1 = m(x-x1).
Substituting in the point (6,-1) and the slope of -3/2:y-(-1) = -3/2(x-6)y+1 = -3/2x + 9y = -3/2x + 8.
The equation of a line perpendicular to 2x-3y=6 and passes through the point (6,-1) is y=2/3x-5.
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Simplify the complex number
2-4i
6+4i
Answer: 6+4i
Step-by-step explanation:
You are considering a security that will pay $7,000 in 8 years. If the interest rate is 2.75% per year, what should you pay today for the security? [ Answer =5,634.34] 2. Alicia is 25 years old, and she has decided it is time to plan for her retirement. At the end of each year until she is 65 , she will save $6,000 in a retirement account. If the account eams 6.5% per year, how much will Alicia have at age 65 ? [Answer =1,053,791]
1) The quantum that should be paid moment for the security is$ 5,634.34. 2) Alicia will have$ in her withdrawal account at age 65.
1) We're given that the security will pay$ 7,000 in 8 times and the interest rate is2.75 per time.
We've to calculate what should be paid moment for the security.
First, we will calculate the present value of the security by using the following formula
PV = FV/( 1 r) n
where, FV = unborn value = $ 7,000
r = periodic interest rate = 2.75
n = number of times = 8
Substituting the given values, we get
PV = $ 7,000/( 10.0275) 8PV = $ 5,634.34
Hence, the quantum that should be paid moment for the security is$ 5,634.34.
2) We're given that Alicia will save$ 6,000 at the end of each time until she's 65.
We need to calculate how important she'll have in her withdrawal account at age 65, given that the account earns6.5 per time.
To calculate the unborn value of her savings, we can use the following formula
FV = PMT *(( 1 r) n- 1)/ r
where, PMT = payment per period = $ 6,000
r = interest rate per period = 6.5 = 0.065
n = number of ages = 40( since she's saving until she's 65 and she's presently 25)
Substituting the given values, we get
FV = $ 6,000 *(( 10.065) 40- 1)/0.065 FV = $
Hence, Alicia will have$ in her withdrawal account at age 65.
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what is the value of x?
solve for x step by step 2x - 3 > 2x-5/2
Answer: x= -1
2x + 3(5 - x) - 12 = 4(x + 2)
1) pass: Delete the parentheses, making the multiplications.
2x + 15 - 3x - 12 = 4x + 8
2) pass: Put the numbers with incognito on the left and change the signal when changing sides if necessary, put the numbers without incognito on the right by changing the signal if necessary.
2x + 15 - 3x - 12 = 4x + 8
2x - 3x - 4x = - 15 + 12 + 8
3) pass: Solve the equations not forgetting the signal rules.
2x - 3x - 4x = - 15 + 12 + 8
- x - 4x = - 3 + 8
- 5x = 5 Simplify by (-1) Exchanging the signals
5x = -5
solve for j:-11=14+3j
Answer:
x=.12
Step-by-step explanation:
The reason:
-11=14+3j
-14 -14
-25=3j
divide 3 =
-.12
Answer:
[tex]j=-\frac{25}{3}[/tex]
Step-by-step explanation:
[tex]-11=3j+14[/tex]
Simple numerical terms are commonly written last.
[tex]-11+(-14)=(3j+14)+(-14)[/tex]
To solve this linear equation, we need to group all the variable terms on one side, and all the constant terms on the other side of the equation.
In our example, [tex]14[/tex], will be moved to the left side. Notice that a term changes sign when it 'moves' from one side of the equation to the other.
If the radius of a circle is 15 yards, What is the diameter?
Answer: 30 yards
Step-by-step explanation: To get the diameter, we double the radius.
So 15 doubles is 30 so we now that the diameter of the circle is 30 yards.
Answer:
The diameter would be 30 yards.
Step-by-step explanation:
