Using trigonometric ratios, tan a + cot a = (cos a + sin a) / sin a * cos a
Trigonometric RatioThe six trigonometric ratios are sine (sin), cosine (cos), tangent (tan), cotangent (cot), cosecant (cosec), and secant (sec). In geometry, trigonometry is a branch of mathematics that deals with the sides and angles of a right-angled triangle. Therefore, trigonometric ratios are evaluated with respect to sides and angles.
In the question given, the trig ratio is
tan a + cot a
We can simplify this as
tan a = sin a / cos a
cot a = 1 / tan a = 1 / sin a / cos a = cos a / sin a
Adding both ratios together
tan a + cot a = (sin a / cos a) + (cos a / sin a)
tan a + cot a = (cos a + sin a) / sin a * cos a
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Solve for j.
–3(j − 8) + –6 = –9
Answer:
j = 9
Step-by-step explanation:
Given equation,
→ -3(j - 8) + (-6) = -9
Let's solve for the value of j,
→ -3(j - 8) + (-6) = -9
→ -3j + 24 - 6 = -9
→ -3j + 18 = -9
→ -3j = -9 - 18
→ j = (-27)/(-3)
→ [ j = 9 ]
Hence, the value of j is 9.
Answer:
j = -9
Step-by-step explanation:
[tex] - 3(j - 8) + - 6 = - 9 \\ open \: brackets \\ - 3j + 24 + - 6 = - 9 \\ 3j + 24 = - 9 + 6 \\ 3j + 24 = - 3 \\ 3j = - 3 - 24 \\ 3j = - 27 \\ divide \: by \: 3 \\ j = - 9[/tex]
Determine which integer(s) from the set S:{−24, 2, 20, 35} will make the inequality five sixths m minus five is less than one half m plus 3 false.
The integer in the set S:{−24, 2, 20, 35} that will make the inequality five-sixths m minus five is less than one-half m plus 3 false is 35
What is inequality?Inequalities are created through the connection of two expressions. It should be noted that the expressions in inequality aren't always equal. Inequalities imply that the expressions are not equal. They are denoted by the symbols ≥ < > ≤.
In this case, based on the information we will replace m with 35. This will be illustrated thus:
= 5/6(35 - 5) < 1/2(35 + 3)
= 5/6(30) < 1/2(38)
= 25 < 19
In this case, 25 isn't less than 19. Therefore, 35 is the correct integer.
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Consider a circle whose equation is x2 + y2 – 2x – 8 = 0. Which statements are true? Select three options. The radius of the circle is 3 units. The center of the circle lies on the x-axis. The center of the circle lies on the y-axis. The standard form of the equation is (x – 1)² + y² = 3. The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
The radius of the circle is 3 units.
The center of the circle lies on the x-axis.
The radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
The standard equation of a circle is:
[tex]x^{2} +y^{2} +2gx+2fy+c=0[/tex]
Given circle equation:
[tex]x^{2} +y^{2} -2x-8=0[/tex]
on comparing
2gx = -2x
g = -2
2fy = 0
f = 0
Center = (2,0)
radius r = [tex]\sqrt{g^{2}+f^{2}-c }[/tex]
= [tex]\sqrt{9}[/tex]
r = 3 units.
Hence the radius of this circle is the same as the radius of the circle whose equation is x² + y² = 9.
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a student observes a blood sample with a compound microscope that has a 10x ocular lens and a 40x objective lens. How much larger do the blood cells appear under the microscope?
If they observes a blood sample with a compound microscope that has a 10x ocular lens and a 40x objective lens. The larger that the blood cells appear under the microscope is: 400x.
How to determine the blood cells?Given data:
Blood sample has:
10x ocular lens
40x objective lens
Using this formula to determine how large the blood cells appear
Blood cells = ocular lens × objective lens
Let plug in the formula
Blood cells = 10x × 40x
Blood cells = 400x or 400 times larger
Therefore the blood cells appear 400 times larger.
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400 times larger
Jamison wants to run for office. The committee prints 18,800 flyers to fold and then mail out to the community. If there are 15 people on the committee, what is the number of flyers per capita to fold and distribute? Round to two decimal places if necessary.
Answer: 1253.33
Step-by-step explanation:
Jose hopes to earn $600 in interest in 4.8 years time from $30,000 that he has available to invest. To decide if it's feasible to do this by investing in an account that compounds annually, he needs to determine the annual interest rate such an account would have to offer for him to meet his goal. What would the annual rate of interest have to be? Round to two decimal places.
Answer
The annual rate of interest have to be 3.87%.
How to determine the annual rate of interest?Mathematically, compound interest can be calculated by using this formula:
A = P(1 + r/n)^{nt}
Where:
A represents the future value.P represents the principal.r represents the interest rate.n represents the number of times compounded.T represents the time measured in years.Making the interest rate (r) the subject of formula, we have:
r = n[(A/P)^{1/nt} - 1]
Note: A = SI + P = 600 + 30,000 = $36,000
Substituting the given parameters into the formula, we have;
Interest rate, r = 1[(36,000/30,000)^{1/1 × 4.8} - 1]
Interest rate, r = [(1.2)^{0.20833333333} - 1]
Interest rate, r = [1.0387 - 1]
Interest rate, r = 0.0387
Interest rate, r = 3.87%.
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WILL MARK BRAINLIEST 30 POINTS
Each night Liz spends at least 45 minutes and no more than 120 minutes on her phone.
Choose which double inequality describes how long Liz spends on her phone each night.
"n" will be used as your variable.
WILL MARK BRAINLIEST
The double inequality describing the length of time (in minutes) that Liz spends on her phone each night is 45 ≤ f(x) ≤ 120.
What is double inequality?Double inequality is a mathematical expression that has two inequalities.
Double inequality is also known as a compound inequality. because there is more than one inequality in the expression
The form of double inequality is always written as: a ≤ f (x) ≤ b.
This double inequality gives the value of x as more than a and less than b.
The least number of minutes spent by Liz on her phone = 45 minutes
The maximum number of minutes spent by Liz on her phone = 120 minutes
Inequalities:Inequality 1: 45 ≤ f(x)
Inequality 2: f(x) ≤ 120
Thus, this double inequality 45 ≤ f(x) ≤ 120 shows Liz's time on the phone every night.
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6) Tomás está haciendo compras en el supermercado. Primero eligió
una bandeja con naranjas cuya etiqueta dice 1.350 g. ¿Cuántos
gramos más debe comprar si quiere llegar a 5 kg?
With the help of unitary method it can be found out that Tomás has to buy more 3650 grams of oranges if he wants to reach 5 kg.
It is given to us that -
Tomás first chose a tray with oranges whose label says 1,350 gram
We have to find out more grams of oranges that he should buy if he wants to reach 5 kilogram.
We know that
1 kilogram = 1000 grams
=> 1000 grams = 1 kilogram ----- (1)
By unitary method, we can find out the number of kilograms equivalent to 1350 grams of oranges.
From equation (1), we have
1000 grams = 1 kilogram
=> 1350 grams = (1/1000) * 1350
=> 1350 grams = 1.35 kilograms ----- (2)
Now, from equation (2), we can see that Tomás first chose 1,350 grams of oranges which is equal to 1.35 kilograms of oranges.
This implies that the more kilograms of oranges that Tomás has to buy to reach 5 kilograms is given by -
(5 - 1.35) kilograms
= 3.65 kilograms
From equation (1), we have
1 kilogram = 1000 grams
=> 3.65 kilograms = 3.65 * 1000 grams
=> 3.65 kilograms = 3650 grams.
Thus, by solving through unitary method we find out that Tomás has to buy more 3650 grams of oranges if he wants to reach 5 kg.
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simplify: 8x divided by 16+8 divided by 32
The value of 8x ÷ (16+8) ÷ 32 is x/96
What are basic operations?The four basic arithmetic operations in Maths, for all real numbers, are:
Addition (Finding the Sum; ‘+’)
Subtraction (Finding the difference; ‘-’)
Multiplication (Finding the product; ‘×’ )
Division (Finding the quotient; ‘÷’)
Discussing about division or quotient
The division is usually denoted by ‘÷‘ and is the inverse of multiplication. It constitutes two terms dividend and divisor.
To simplify
8x÷(16+8)÷32= 8x×1/24×1/32
= x/96
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Give two ordered pairs on the line with equation x = 7
(7,0); (7,−5) ;(7,3); (7,10);. (7,y)
Step-by-step explanation:
Answer:
The equation x = 7 forms a vertical line which we refer to as undefined. So any points with a x value of 7 will pass through the line.
Step-by-step explanation:
For example, points like (7, 0) (7, 1) (7, 2) are all points that the line x = 7 passes through.
A point is made up of 2 values. An x-value and and a y-value. You simply plug in 7 for the x and any value for y.
Points that are on the line x = 7 include:
(7, 0)
(7, 1)
(7, 2)
(7, 4)
(7, 5)
(7, 6)
A manufacturer produces 25-pound lifting weights. The lowest actual weight is 24 pounds, and the highest is 26 pounds. Each weight is equally likely so the distribution of weights is uniform. A sample of 100 weights is taken. Find the probability that the mean actual weight for the 100 weights is greater than 25.2
The probability that the mean actual weight for the 100 weights is greater than 25.2 is equal to 0.0136%.
How to determine the probability that the mean actual weight for the 100 weights?In order to determine the probability that the mean actual weight for the 100 weights is greater than 25.2, we would have to calculate the mean and standard deviation.
In a uniform distribution, the mean of a data set can be calculated by using this formula:
Mean, E(x) = [a + b]/2
Where:
a is the lowest boundary.b is highest boundary.Substituting the given parameters into the formula, we have;
Mean, E(x) = [24 + 26]/2
Mean, E(x) = 50/2
Mean, E(x) = 25.
For the standard deviation, we have:
Standard deviation, S(x) = √((b - a)²/12)
Standard deviation, S(x) = √((26 - 24)²/12)
Standard deviation, S(x) = √((2)²/12)
Standard deviation, S(x) = √(4/12)
Standard deviation, S(x) = 0.5774.
For the sample standard deviation, we have:
Standard deviation = S(x)/√n
Standard deviation = 0.5774/√100
Standard deviation = 0.5774/10
Standard deviation = 0.05774.
By applying the central limit theorem, we would determine the z-score as follows:
Z-score = (x - μ)/σ
Z-score = (25.2 - 25)/0.05774
Z-score = 0.2/0.05774
Z-score = 3.64
Therefore, the p-value is equal to 0.000136.
Probability (x > z) = 0.0136%.
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Graph the line with slope 1/3 and y-intercept −2.
Write two quadratic equations that are NOT equivalent, each forming a graph with -intercepts
(−3,0) and (1,0).
Explain in detail please
The two quadratic equations are; y = x² + 2·x - 3 and y = -x² - 2·x + 3
Given,
x - intercepts = (−3,0) and (1,0).
The x-intercepts are given by the point at which the y-value of the equation are zero.
Therefore;
The quadratic equation are;
(x + 3)·(x - 1) = 0
x² + 2·x - 3 = 0
Quadratic equations;-
The polynomial equations of degree two in one variable of type f(x) = ax2 + bx + c = 0 and with a, b, c, and R R and a 0 are known as quadratic equations. It is a quadratic equation in its general form, where "a" stands for the leading coefficient and "c" for the absolute term of f. (x).
Here,
The equation can also be written in the form;
(-x - 3)·(x - 1) = 0
-x² - 2·x + 3 = 0
The quadratic equations are;
y = x² + 2·x - 3 and y = -x² - 2·x + 3
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Complete the table: (Enter your answers as a whole dollar amount.) Units Unit Cost Dollar Cost Beg. Inventory Jan. 1 10 $ 7.00 A Apr. 11 30 $ 12.00 B May 17 40 $ 13.00 C Dec. 5 20 $ 15.00 D
The completion of the inventory table is as follows:
A = $70B = $360C = $520D = $300.What are the inventory methods?Some of the inventory methods that are used in completing the inventory table are:
FIFO (First-in, First-out) lies on the assumption that the physical flow of goods sold depends on the chronological order of acquisition.LIFO (Last-in, First-out) assumes that the cost of goods sold should be based on the latest inventory purchases.The weighted-average method uses the average cost of goods to determine both the ending inventory and the cost of goods sold.Specification Identification does not rely on any assumptions in allocating the costs of goods sold and ending inventory.Inventory Table:Units Unit Cost Total Cost
Jan. 1 Beg. Inventory 10 $7.00 $70
Apri. 11 Purchases 30 $12.00 $360
May 17 Purchases 40 $13.00 $520
Dec. 5 Purchases 20 $15.00 $300
Total 100 $1,250
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James shares 5/8 of a cake between 6 people.
What fraction of the cake do they each receive?
Answer:
5/48
Step-by-step explanation:
The fraction of people getting cake will be 1/6 of 5/8 thus it will be 5/48.
What is a fraction?In such a fraction, the value that appears above the horizontal line is referred to as the numerator.
In another word, if we divide two numbers by each other then the upper word is called the numerator, and the lower word is called the denominator.
As per the given,
James shares 5/8 of a cake between 6 people.
Now, 1/6 of 5/8 will be as,
1/6(5/8) = 5/48
Hence "The fraction of people getting cake will be 1/6 of 5/8 thus it will be 5/48".
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Calculate capital if assets are £451,100, liabilities are £20,500, income is £351,200 and expenses are £270,600.
The capital is £430,600.
Define capital.
The money that a company has on hand to support both its current operations and potential expansion is known as capital. One source of funding for it is the earnings from its operations. When calculating a company's capital worth, all of the company's physical assets and financial assets would be included (minus its liabilities).
The capital account—also referred to as the capital and financial account—records the net flow of investment transactions into an economy and is used in macroeconomics and international finance.
Solution Explained:
Given, Assets = £451,100 and liabilities = £20,500
Capital = Assets - Liabilities
= 451100 - 20500
= £430,600
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Which graph represents the solution set of - 4x - y ≤ - 6?
Answer:
Step-by-step explanation:
Which graph represents the solution set of - 4x - y ≤ - 6?
21. An artist created a piece of art with 675 round glass beads. There were
also 179 beads in the shape of a heart. Write a number sentence to
find about how many more round beads there were.
By using subtraction, it can be calculated that there were 496 round beads more than heart shaped beads
What is subtraction?
Suppose, there are two numbers and it is required to find out how much one number is bigger than the other. The operation used for this is subtraction.
The larger number is called minuend and the smaller number is called subtrehend.
Here, subtraction will be used
Number of round glass beads = 675
Number of beads in the shape of heart = 179
Number of more round beads there were = 675 - 179
= 496
There were 496 round beads more than glass beads
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math, pls help, will mark brainlest
Answer:
Step-by-step explanation:
3x + 3x equals 11x
-268=-6(-6-6k)+2k
k= ???
Answer:
k = - 8
Step-by-step explanation:
- 268 = - 6(- 6 - 6k) + 2k ← distribute parenthesis by - 6
- 268 = 36 + 36 k + 2k ( subtract 36 from both sides )
- 304 = 38k ( divide both sides by 38 )
- 8 = k
The table below shows the cost of downloading songs from a website. \text{Number of Songs}Number of Songs \text{Total Cost}Total Cost 1313 \$9.36$9.36 1717 \$12.24$12.24 1919 \$13.68$13.68 What is the constant of proportionality between the total cost and the number of songs?
The constant of proportionality between the total cost and the number of songs is 0.72.
What is the constant of proportionality?The constant of proportionality is the ratio that supplies the variable cost per unit of each song.
Other names for the constant of proportionality include:
SlopeUnit rateConstant rateConstant ratioRate of changeConstant of variation.Determining the constant of proportionality can help us formulate the total cost equation as y = 0.72x.
Number of Songs Total Cost Unit Cost
13 $9.36 $0.72 ($9.36/13)
17 $12.24 $0.72 ($12.24/17)
19 $13.68 $0.72 ($13.68/19)
Check:
y = 0.72x
y = 0.72(13)
y = $9.36
Thus, the constant of proportionality is 0.72, showing that a downloaded song costs $0.72 each.
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Find the unit rate for this relationship
2/3 is the unit rate of the relationship
How to determine the unit rate of the relationship?
A unit rate is defined as the rate for one of something. For example, if 10 oranges cost $50, the unit rate will be $50/10 = $5 i.e. $5 for one orange.
On a linear graph, the unit rate is obtained by calculating the slope of the line. The slope is the change in y divided by the change in x:
Slope = y2-y1 / x2-x1
Thus, we can any two convenient points on the graph and use it calculate the slope as shown in the attached image:
Slope = y2-y1 / x2-x1
Slope = 6-2 / 9-3 = 4/6 = 2/3
Therefore, the unit rate for this relationship is 2/3. The 2nd option is the answer
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Two consecutive odd integers have a sum of 40. Find the integers
Answer:
19 and 21|
Step-by-step explanation:
a + (a+2) = 40
2a + 2 = 40
2a = 40 - 2
2a = 38
a = 38/2
a = 19
a+2 = 21
Check:
19 + 21 = 40
Please help with the ones that have a red x beside it would greatly and would give 100 pts so please help me!!!!!
Answer:
huhh
Step-by-step explanation:
Hi im new can u guys tell me how this work pease??
Answer:
Step-by-step explanation:
idek idek
find the horizontal asymptote
The horizontal asymptote is y = [tex]\frac{9}{4}[/tex].
Let f(x) = [tex]\frac{9x^{3}-5x-9}{4x^{3}-9x+4}[/tex]
Line y = L is a horizontal asymptote of the function y=f(x), if either [tex]\lim_{x \to \infty} f(x) = L[/tex] or, [tex]\lim_{x \to -\infty} f(x) =L[/tex] and L is finite.
We will calculate limits :
[tex]\lim_{x \to \infty}(\frac{9x^{3}-5x-9}{4x^{3}-9x+4}) = \frac{9}{4}[/tex]
[tex]\lim_{x \to -\infty}(\frac{9x^{3}-5x-9}{4x^{3}-9x+4}) = \frac{9}{4}[/tex]
Hence, horizontal asymptote is y = [tex]\frac{9}{4}[/tex].
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A bank representative studies compound interest, so she can better serve customers. She analyzes what happens when $2,000 earns
interest several different ways at a rate of 4% for 3 years.
Find the interest if it is computed using simple interest.
Find the interest if it is compounded annually.
Find the interest if it is compounded semiannually,
Find the interest if it is compounded quarterly.
Find the interest if it is compounded monthly.
Find the interest if it is compounded daily.
Find the interest if it is compounded hourly.
Find the interest if it is compounded every minute.
Find the interest if it is compounded continuously.
What is the difference in interest between simple interest and interest compounded continuously?
1) The interest if it is compounded using simple interest is $240
2) The interest if it is compounded annually is $249.73
3) The interest if it is compounded semiannually is $252.325
4) The interest if it is compounded quarterly is $253.650
5) The interest if it is compounded monthly is $254.543
6) The interest if it is compounded daily is $254.978
7) The interest if it is compounded hourly is $254.993
8) The interest if it is compounded every minute is $254.993
9) The interest if it is compounded continuously is $254.993
10) The difference in interest between simple interest and interest compounded continuously is $14.993
What is meant by compound interest?Compound interest is the addition of interest to the principal sum of a loan or deposit, or interest on interest plus interest.
Given, P=2000
r=4%
r=4/100
r=0.04
t=3 years
1) Simple interest⇒ A=P(1+rt)
=2000(1+3(0.04)
=2000(1+0.12)
=2240
S.I= 2240-2000
S.I=$240
2) Compound interest(yearly)
1st year= 2000(4/100)=80
2nd year=2080(4/100)=83.2
3rd year=(2080+83.2)(4/100)=86.528
P=2163.2+86.528
P=2249.728
C.I=2249.728-2000
C.I=249.728≈$249.73
3) Compounded semiannually
A= P(1+(R/200))²ⁿ
A=2000(1+(4/200))⁶
A=2000(1.12616)
A=2252.325
C.I= 2252.325-2000
C.I=$252.325
4) Compounded quarterly
A=P(1+(R/400))⁴ⁿ
A=2000(1+(4/400))¹²
A=2253.650
C.I=2253.650-2000
C.I=$253.650
5) Compounded monthly
A=P(1+(R/1200))³⁶
A=2000(1+(4/1200))³⁶
A=2254.543
C.I= 2254.543-2000
C.I=$254.543
6) Compounded daily
A=P(1+(R/36500))³⁶⁵ⁿ
A=2000(1+(4/36500))¹⁰⁹⁵
A=2254.978
C.I=2254.978-2000
C.I=$254.978
7) Compounded hourly
A=P(1+(R/876000))²⁶²⁸⁰
A=P(1+(4/876000))²⁶²⁸⁰
A=2254.993
C.I=2254.993-2000
C.I=$254.993
8) Compounded every minute
A=P(1+(R/52560000))¹⁵⁷⁶⁸⁰⁰
A=P(1+(4/52560000))¹⁵⁷⁶⁸⁰⁰
A=2254.993
C.I=2254.993-2000
C.I=$254.993
9) Compounded continuously
A= [tex]Pe^{rt}[/tex]
A=2000([tex]e^{0.04*3}[/tex])
A=2254.993
C.I=2254.993-2000
C.I=$254.993
10) The difference in interest between simple interest and interest compounded continuously is
254.993-$240=$14.993
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8 (a) Write 0.000089 in standard form.
Answer: 0.000089
Step-by-step explanation: 0.000089 is already in standard form, if you want 0.000089 in the scientific form then that would be...
8.9 x 10⁻⁵
An ice cream factory has 4 machines that make the same type of ice cream. The rate of production for each machine is shown in the table. Based on the date given, which machine works atthe fastest rate?
Using division operations and based on the rates of production, given, Machine D works the fastest.
How is the rate of production determined?The rate of production can be computed using the division operation, which divides the dividend by the divisor, to obtain the quotient (rate).
The rate of production is the number of goods that can be produced during a given period of time.
The rate of production or production rate also refers to the time consumed in the production of a unit of goods or services.
There are, therefore, two ways of determining production rate. Firstly, we can divide the total production by the hours consumed.
Secondly, the production rate can be computed by dividing the total production time by the number of goods produced.
Units Production Rate of
Produced Hours Production
Machine A 10,000 15 667 cups per hour
Machine B 25,000 20 1,250 cups per hour
Machine C 30,000 30 1,000 cups per hour
Machine D 15,000 10 1,500 cups per hour
Thus, using division operation, Machine D produces at the fastest rate than the other three machines.
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Question Completion:Units Production
Produced Hours
Machine A 10,000 15
Machine B 25,000 20
Machine C 30,000 30
Machine D 15,000 10
If Tomas divides his stack of programs between himself and his 3 friends, what fraction of the original stack will each of his friends have? can someone help me.
As per the given information, Tomas divides one program among four people then each person will get fraction of ( 1/ 4) of the original stack if divided equally .
As given in the question,
Number of stacks of program to be divided = 1
Number of friends = 3
Number of people among whom stack of program is to be divided = 4
Let us consider stack of program divided equally
Fraction of stack of program each friend will get = 1 /4
As
( 1 / 4 ) + ( 1 / 4 ) + ( 1 / 4 ) + ( 1 / 4 )
= ( 1+ 1+ 1+ 1) / 4
= 4/4
= 1
Therefore, for the given information, Tomas divides one program among four people then each person will get fraction of ( 1/ 4) of the original stack if divided equally .
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Customer account "numbers" for a certain company consists of 4 letters followed by 3 single-digit numbers. How many different account numbers are possible if repetitions of letters and digits are allowed?
If the number of different account numbers are possible if repetitions of letters and digits are allowed is:45,697,600,000.
How to determine the total possibilities?Let assume you have 26 choices for each of the first 4 slots and 10 choices for each of the last 5 slots.
Hence,
Total possibilities = (26× 26× 26×26) × (10×10×10×10×10)
Total possibilities = 26^4 × 10^5
Total possibilities = 456976×100000
Total possibilities = 45,697,600,000
Therefore we can assume that the total possibilities is : 45,697,600,000.
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