There are 256 ways in total and 56 possible outcomes contain exactly three heads. The possible outcomes contain at least three heads is 219.
Consider the provided information.
A coin is flipped eight times where each flip comes up either heads or tails.
Part (a) How many possible outcomes are there in total?
Each time we flip a coin it comes up either heads or tail.
Therefore the total number of ways are: 2⁸ = 256
Hence, there are 256 ways in total.
Part (b) contain exactly three heads?
We want exactly 3 heads, therefore,
n=8 and r=3
According to the definition of combination:
To get exactly 3 heads,
n=8 and r=3
(⁸C₃ ) = 8! / 3!(5!) = 56.
Therefore, there are 256 ways in total and 56 possible outcomes contain exactly three heads. The possible outcomes contain at least three heads is 219.
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Calculate length of bc
Answer:
a) BC = 8.66
b) BC = 4.33
Step-by-step explanation:
a)
solution:
cos30°=BC/AC
or, BC=0.866*10
BC=8.66
b)
solution:
BC=5*0.866
BC=4.33
Caroline buys 5 rubbers and 5 crayons for £10.
Elliot buys 1 rubber and 2 crayons for £2.75.
Work out the cost of one rubber and one crayon.
Answer:
5R + 5C = 1000
1R + 2C = 275
(1R + 2C = 275) x 5 = 5R + 10C = 1375
(5R + 10C = 1375) - (5R + 5C = 1000) = 5C =375
CRAYON = 75p
RUBBER = 125p
How does decision making affect your life?.
Every decision we make is followed by a series of related events. The magnitude of the decision will determine how drastically it will affect the person making it and those around them. There is always a result, whether the impact is positive or negative.
What is the process of decision making ?Step 1: Identification of the purpose of the decision
Step 2: Information gathering
Step 3: Principles for judging the alternatives
Step 4: Brainstorm and analyze the different choices
Step 5: Evaluation of alternatives
Step 6: Select the best alternative
Step 7: Execute the decision
Step 8: Evaluate the results
When making judgments, one should always balance the potential business benefits against the drawbacks, leaning toward the former.
By doing this, potential losses to the organisation are avoided, and sustainable growth is maintained within the business. When you have to make a difficult decision, it might often seem easier to postpone doing so, especially if you encounter a lot of conflict thereafter.
However, in order to maintain control over your work and time, decisions must be made and their implications accepted.
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State the complementary event of rolling a die and getting a number less than 3.
The complementary event of rolling a die and getting a number less than three is that the six-sided die is rolled and the outcome is greater than three. Where P = n < 3 is the event and its complement is P' = n > 3.
What is the complement of an event?The sample space of all outcomes that are not the event in question is the complement of an event. The inverse of "a flipped coin lands on heads" is "a flipped coin lands on tails."
If the chance of drawing a red marble from a bag is 26%, the chance of the complement (picking a non-red marble ) is 74%.
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Write a recursive formula for the sequence described.
It follows a plus one pattern: 8, 9, 10, 11, 12, ...
The recursive formula for the given sequence is, [tex]a_n=a_n_-_1+1[/tex].
What is recursive formula?
Any term of a series can be defined by its preceding term in a recursive formula (s). For instance: An arithmetic series has the recursive formula
[tex]a_n=a_n_-_1+d[/tex]. [tex]a_n=a_n_-_1r[/tex] is the recursive formula for a geometric sequence.
Consider the given sequence,
8, 9, 10, 11, 12, ...
Here each next term is defined by it's preceding term by adding 1 in each preceding term.
That is,
9 = 8 +1
10 = 9 + 1
11 = 10 + 1
12 = 11 + 1
Hence, the recursive formula for the sequence is, [tex]a_n=a_n_-_1 + 1[/tex].
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Which table represents the function y = -2x + 4?
Input x 0 1 2
Output y 4 7 10
Input x 0 1 2
Output y 4 2 0
Input x 0 1 2
Output y 4 6 8
Input x 0 1 2
Output y 3 4 5
The table that represents the function y = -2x + 4 is: the second table.
How to Find the Function that Represents a Table?Considering the third table representing a function given:
x | y
0 4
1 2
2 0
Find the slope (m) using the two points (1, 2) and (2, 0):
Slope (m) = change in y / change in x = (0 - 2) / (2 - 1)
m = -2/1
m = -2.
The y-intercept (b) = 4.
Substitute m = -2 and b = 4 into y = mx + b:
y = -2x + 4
Therefore, the second table represents the function y = -2x + 4.
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Solve the following inequality: -4x
+ 14 ≤ 54
The solution to the inequality is solved as: x ≥ -10.
How to Solve an Inequality?To solve an inequality means to find the possible values of the variable in the inequality that will make it true.
Given the inequality:
-4x + 14 ≤ 54
Subtract 14 from both sides of the inequality:
-4x + 14 - 14 ≤ 54 - 14 [Subtraction property of equality]
-4x ≤ 40
Divide both sides by -4 then change the inequality sign:
-4x/-4 ≥ 40/-4 [division property of equality]
x ≥ -10
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If 1 2 gallon of paint covers 1 12 of a wall, then how many quarts of paint are needed for the entire wall?.
If 1/2 gallon covers 1/12 of a wall, then there are 12 quarts of paint that are needed to cover the entire wall.
One gallon is equal to 4 quarts.
The amount of gallon that covers 1/12 of a wall = 1/2.
1/2 gallon = 2 quarts
This means that 2 quarts are needed to cover 1/12 of a wall.
Now, the number of quarts needed to cover the entire wall = 1/12 × 2= 1.
Therefore, if 1/2 gallon covers 1/12 of a wall, then there are 12 quarts of paint that are needed to cover the entire wall.
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Andre wants to make an open-top box by cutting out corners of a 22 inch by 28 inch piece of poster board and then folding up the sides. The volume v(x) in cubic inches of the open-top box is a function of the side length x in inches of the square cutouts.
The expression for the volume is V = (28 - 2x)(22 - 2x)(x), and the volume of the box is 864 cubic inches.
It is given that:
Andre wants to make an open-top box by cutting out the corners of a 22-inch by 28-inch piece of poster board and then folding up the sides.
As we know,
The volume of the box = length×width×height
V = (28 - 2x)(22 - 2x)(x)
Plug x = 2
V = (28 - 2×2)(22 - 2×2)(2)
V = (24)(18)(2) cubic inches.
V = 864 cubic inhces
Since x measures length, it is not possible for it to be smaller than zero. In addition, since the width of the box's bottom cannot be less than zero.
Thus, the expression for the volume is V = (28 - 2x)(22 - 2x)(x), and the volume of the box is 864 cubic inches.
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In preparing for the upcoming holiday season, fresh toy company (ftc) designed a new doll called the dougie that teaches children how to dance. the fixed cost to produce the doll is $100,000. the variable cost, which includes material, labor, and shipping costs, is $31 per doll. during the holiday selling season, ftc will sell the dolls for $39 each. if ftc overproduces the dolls, the excess dolls will be sold in january through a distributor who has agreed to pay ftc $10 per doll. demand for new toys during the holiday selling season is extremely uncertain. forecasts are for expected sales of 60,000 dolls with a standard deviation of 15,000. the normal probability distribution is assumed to be a good description of the demand. ftc has tentatively decided to produce 60,000 units (the same as average demand), but it wants to conduct an analysis regarding this production quantity before finalizing the decision. (a) determine the equation for computing ftc's profit for given values of the relevant parameters (e.g., demand, production quantity, etc.). using this equation, compute ftc's profit (in dollars) when realized demand is equal to 60,000 (the average demand).
The equation for ftc's profit is Profit = Sales – (Variable Cost + Fixed Cost)
According to the question,
The fixed cost to produce the doll = $100,000
Variable cost = $31
Selling price during holiday season = $39
Selling price during January = $10
Demand of new toys follows normal distribution
average sales = 60,000
Standard deviation = 15,000
Demand assumed in normal distribution = 60,000
The equation for ftc's profit ;
Let demand be d , production quality be p , fixed cost be x and variable cost be y
Maximum Profit:
Profit = Sales – (Variable Cost + Fixed Cost)
During the holiday season, For 40,000 dolls
Sales = 40,000 * 39 = $1,560,000
profit = $1,560,000 – (x+ y)
Variable Cost = 31*40,000 = 1,240,000
Fixed Cost = $100,000
Total Cost = 1,240,000+100,000 = $1,340,000
Profit = 1,560,000 – 1,340,000
= $220,000
Maximum Profit = $220,000
Average Profit: Off season sale price * Demand =$10*40,000
= $400,000
average sales = ($400,000 + 1,560,000 ) / 2=$1960,000/2
= $980,000
Average profit = 980,000 – 73,000= $972,700
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You want a 95% confidence interval for average pizza delivery time. A sample of 10 pizzas has an average delivery time of 34 minutes and a sample standard deviation of 5. 2 minutes. What t value do you use in your formula for the confidence interval?.
Determine the value of b in the equation b3 = −125. b = −5 b = 5 b = −41.7 b = 41.7
The value of b in the equation [tex]b^{3}[/tex] = 125 will be 5. Option (b) is correct.
The question is about the system of equations. According to the question, we have the following equation:
b³ = 125.
We can find the value of b by simplifying and using the rules of equations.
First, we need to Factorize 125 on the right-Hand side, we get.
b³ = 5.5.5 = 5³
Hence we get,
b³ = 5³
We know that if there are two expressions that are equal and we add, subtract, multiply or divide into both sides of the equation, the resulting equation will also be equal. So, Multiply both sides by the cube root, and we get:
[tex]\sqrt[3]{b^{3}} = \sqrt[3]{5^{3}}[/tex]
[tex](b^{3})^{\frac{1}{3}} = (5^{3})^{\frac{1}{3}}[/tex]
[tex](b})^{\frac{3}{3}} = (5})^{\frac{3}{3}}[/tex]
[tex](b})^1 = (5})^1[/tex]
So we get the value of b = 5, hence the correction option will be (b).
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Which statement correctly describes the relationship between the graph of f (x) and the graph of g (x) =f (x) - 4?
A) The graph of g(x) is the graph of f(x) translated 4 units down.
B) The graph of g(x) is the graph of f(x) translated 4 units left.
C)The graph of g(x) is the graph of f(x) translated 4 units right.
D)The graph of g(x) is the graph of f(x) translated 4 units up.
The statement which describes the relationship between the graph of f (x) and the graph of g(x) = f (x) - 4 is the graph of f(x) translated 4 units down.
What is meant by standard form of transformation?The standard form of transformation can be described as,
g(x) = f(x + a) + b .... (1)
If a > 0, then the graph of f(x) shifts left side by a unit and if If a < 0, then the graph of f(x) shifts right side by a units.
If b > 0, then the graph of f(x) shifts upward by b unit and if If a < 0, then the graph of f(x) shifts downward by b units.
Since the relationship between the graph of f(x) and g(x) exists,
g(x) = f(x − 4)
From (1), we get
The value of a exists -4, therefore the graph of f(x) translated 4 units down.
The value of a function exists defined on a graph by the vertical distance from the x-axis. When that vertical distance exists reduced by 4, the corresponding point exists shifted down 4 units.
Therefore, the correct answer is option A) The graph of g(x) is the graph of f(x) translated 4 units down.
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How is the area of a triangle formed by the Midsegments of a triangle related to the area of the original triangle use an example to justify your answer?.
A triangle's midsegment is the section created by joining any two of its sides at their midpoints.
Simply said, it equally splits the two triangle sides. A side is divided into two equal segments at its halfway. The middle segment of the triangle ABC is DE, as shown in the image below. Segment AB is divided into two equal portions at point D, and segment CB is divided into two equal parts at point E. The base of the triangle is the side on which the midsegment does not meet. The segment created by joining the midpoints of a trapezoid's two legs is known as the midsegment. Despite the fact that a trapezoid's midsegment is also helpful
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In a cla of 26 tudent 15 of them like math 13 of them like Englih and 9 of them don’t like math or Englih
Using Probability,
The probability that a randomly selected student in the class likes math or English is 11/26.
We have provided the following information,
total number of students in a class = 26
number of students who likes Math = 15
number of students who likes English = 13
number of students who does not likes English or Math = 9
let x be number of students who likes both of subjects .
firstly , we have to find out the value of x i.e total number of students who likes both subjects out of 26 students class .
For this , number of students who likes any one of subjects from both = 26- 9 = 17
but we have total 28 (i.e., 15 + 13 )students who likes Math and English.
so, number of students who likes only Math = 17-15 = 2
number of students who likes only English = 4
then, number of students who likes both subjects
(x) = 26 - 4- 2-9 = 11
randomly one student is selected from the Class,
The probability that a randomly selected student in the class likes math or English = 11/26
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Complete question:
In a class of 26 students: 15 like math, 13 like English, 9 does not like both. What is the probability that a randomly selected student in the class likes math or English?
Probability models? In each of the following situations, state whether or not the given assignment of probabilities to individual outcomes is legitimate, that is, satisfies the rules of probability. If not, give specific reasons for your answer.(a) Roll a die and record the count of spots on the up-face: P(1) = 0, P(2) = 1/6, P(3) = 1/3, P(4) = 1/3,P(5) = 1/6, P(6) = 0.(b) Choose a college student at random and record gender and enrollment status: P(female full-time) = 0.56, P(male full-time) = 0.44, P(female part-time) = 0.24, P(male part-time) = 0.17.(c) Deal a card from a shuffled deck: P(clubs) = 12/52, P(diamonds) = 12/52, P(hearts) = 12/52,P(spades) = 16/52.Part (a) The distribution is legitimate.Part (b) The distribution is not legitimate.Part (c) The distribution is legitimate.
From the various probabilities, (a) the distribution is legitimate (b) the distribution is not legitimate (c) the distribution is legitimate.
How to know legitimate probability distribution?We should know that Probability is the chance of occurrence of an even (E) over a period of time.
A legitimate probability distribution must be that which adds up to 1 and cannot be negative.
Legitimate Distribution= P(a)+P(b)+P(c)+.....+P(n)
Where a,b,c and n are Probabilities of events.
From the given Parameters
(a) Rolling a die to record P(1) =0, P(2)=[tex]\frac{1}{6}[/tex], P(3)=[tex]\frac{1}{3}[/tex], P(4)=[tex]\frac{1}{3}[/tex], P(5)=[tex]\frac{1}{6}[/tex], P(6)=0
Add up the probabilities to get 1
⇒0+[tex]\frac{1}{6} +\frac{1}{3}+\frac{1}{3}+\frac{1}{6}+0[/tex]
⇒[tex]\frac{0+1+2+2+1+0}{6}[/tex]
P(E)=[tex]\frac{6}{6}=1[/tex]
This implies that the distribution is legitimate
(b) Choosing a college student at random,
Add up the probabilities to get 1
P(female full time)+P(male full time)+P(female part time)+P(male part time)
⇒0.56+0.44+0.24+0.17
=1.41
The probability of the distribution is not legitimate because it is greater than one.
(c) Deal a card from a shuffled deck.
Add up the probabilities to get 1
P(club)+P(diamond)+P(hearts)+P(spades)
[tex]\frac{12}{52} +\frac{12}{52}+\frac{12}{52}+\frac{52}{16}[/tex]
[tex]\frac{12+12+12+16}{52}[/tex][tex]\frac{52}{52}=1[/tex]
The distribution is legitimate because the sum of the probabilities is
equal to 1
In conclusion, from the various probabilities, (a) the distribution is legitimate (b) the distribution is not legitimate (c) the distribution is legitimate.
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How do you write an equation in slope-intercept form of the line that is perpendicular to a graph?.
The original slope's reciprocal will be the opposite of the perpendicular slope. To determine the intercept, b, enter the supplied point and the new slope into the slope-intercept form (y = mx + b). Rewrite the following equation in standard form: ax + by = c.
The values of the slope and y-intercept provide details on the relationship between the two variables, x and y. The slope shows how quickly y changes for every unit change in x. When the x-value is 0, the y-intercept shows the y-value.
Y = mx + b, where m denotes the slope and b the y-intercept, is how the equation of the line is expressed in the slope-intercept form. We can see that the slope of the line in our equation, y = 6x + 2, is 6.
The slope is m and the y-intercept is b in the equation y=mx+b in slope-intercept form. Some equations can also be rewritten so that they resemble slope-intercept form. For instance, y=x can be written as y=1x+0, resulting in a slope and y-intercept of 1 and 0, respectively.
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if speed varies inversely as the time it takes to drive and kris takes 5 hours driving at 55 mph, what speed will martin need to drive if he wants to take 512hours
The speed that will martin need to drive, if he wants to take the 512 hours is 0.537 mph.
What does proportionality's constant look like?Students determine the rate of change, often referred to as the constant of proportionality (k = y/x), which is the consistent ratio between two proportional values (y/x) indicated by the symbol k, which may be a positive rational integer. The x value and the y value are directly proportional, as in the equation y = kx.
Speed and travel time vary in opposite directions.,
So v ∝ 1/t.
speed = v
time = t
So
=> v = k/t, k=constant of proportionality.
Since it takes Kris 5 hours when driving at 55 mph,
=> v = 55mph and t = 5 hours.
=> 55 = k/5
by doing cross multiply
=> k = 55*5
=> k = 275
Hence, to calculate for Martin to drive for 5 hours, we will take k = 275 and t = 5 into v = k/t
=> v = 275/512
=> v = 0.537 mph
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determine the seating capacity of an auditorium with 20 rows of seats if there are 25 seats in the first row, 29 seats in the second row, 33 seats in the third row, 37 seats in the fourth row, and so on.Total number of seats=_____.
The total number of seats are 1260 in an auditorium.
The number of seats will be calculated by the arithmetic progression -
S = n/2 [2a + (n-1)d], where s is the number of seats, n is number of rows, a is the number of seats in first row and d is the number of extra seats added in each row.
d = 29 - 25
Performing subtraction
d = 4
Keep the values in formula -
S = 20/2 [(2×25) + (20 - 1)×4]
Performing multiplication and subtraction
S = 10 [50 + (19×4)]
Performing multiplication
S = 10 [50 + 76]
Performing addition
S = 10 [126]
Performing multiplication
S = 1260
Hence, there are 1260 seats.
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What is the slope of the line that passes through the points (-3, 3), and (1, -5)?
-1/2
2
1/2
-2
Write : linear equation to represent the line shown on the graph.
The equation of the line that passes through the points (0,-2) and (3,2) is 4x-3y-6 = 0.
What is equation of line?A line's equation is an algebraic way of expressing the collection of points that make up a line in a coordinate system.
The many points that collectively make up a line on the coordinate axis are represented as a group of variables (x, y) to create an algebraic equation, also known as an equation of a line.
In the given graph,
The points are (0,-2) and (3,2)
To find the equation of the line,
Find slope by using formula m = (y₂-y₁)/(x₂-x₁)
m = (2-(-2))/(3-0)
m = 4/3
The equation of line is,
y-y₁ = m (x-x₁)
y-(-2) = 4/3(x-0)
y+2 = 4/3x
3y+6 = 4x
4x-3y-6 = 0
The required equation of line is 4x-3y-6 = 0.
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At 98°F, a certain insect chirps at a rate of 88 times per minute, and at 107°F, they chirp 151 times per minute. Write an equation in slope-intercept form that represents the situation.
The equation in slope-intercept form that represents the situation is y = 7x - 598
What is slope?The slope of a line is the ratio of the amount that y increases as x increases some amount. Slope tells you how steep a line is, or how much y increases as x increases. The slope is constant (the same) anywhere on the line.
The ordered pair are ( 98, 88) and (107, 151)
Equation of line in slope-intercept form is y = mx + c
at x = 98, y =88
so that by substituting we have,
88 = 98m + c -------------------1
at x = 107, y = 151 and by substituting we have
151 = 107m + c -----------------2
subtract equation 1 from 2
63 = 9m
m = 63/9
m = 7
substitute m = 7 in equation 1
88 = 98(7) + c
c = 88 - 686c
c = -598
substitute m and c for their values equation becomes
y = 7x - 598
In conclusion, the equation in slope-intercept form is y = 7x - 598
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There are currently 4000 mice in a population that grows continuously and exponentially. 10 years ago there were 100 individuals. How much longer (in years) will it take to reach 7000? round and give your answer to 2 decimal places
It will take approximately 11.62 years to reach a population of 7000 mice.
To solve this problem, we can use the formula for exponential growth:
[tex]\mathrm{N = N_0 \times e^{(r \times t)}}[/tex]
Where:
N = Final population size
N₀ = Initial population size
r = Growth rate
t = Time (in years)
Let's calculate the growth rate (r):
N₀ = 100
N = 4000
[tex]\mathrm{r = ln(N/N_0) / t}[/tex]
[tex]\mathrm {r = ln(4000/100) / 10}\\\\\mathrm {r = ln(40) / 10}\\\\\mathrm {r \approx 0.3688}[/tex]
Now, let's find the time required to reach 7000 mice:
[tex]\mathrm {N = 7000}\\\\\mathrm {t = ln(N/N_0) / r}[/tex]
[tex]\mathrm {t = ln(7000/100) / 0.3688}\\\\\mathrm {t \approx 11.52 \ years}[/tex]
Therefore, it will take approximately 11.62 years to reach a population of 7000 mice.
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a petty cahs fund was established with a $360 balance. it currently has cash of $42 and petty cash tickets totaling $318.
A credit to cash for $318 would be included in the entry to replenish the fund.
What is Balance?The balance is the sum owing on an account in banking and accounting. The term "balance" in accounting refers to the difference between the total of debit entries and the total of credit entries made into an account over the course of a certain financial period. The account shows a negative balance when total debits exceed total credits. There is just one rule in the balancing method: Perform the identical action on both sides of the equal sign so that only the unknown variable is left on one side.
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a rectangular room twice as long as it is wide would contain 145 square feet more if each side were one foot longer. what is the length of the room?
The length of the room will be 96 ft after increasing each side by 1 foot.
Let L be the length of the room and W be the width of the room.
Given , L = 2W.
Area , A = LW
= 2W × W
= 2W²
On increasing each side by 1 foot, new area is A' = (L + 1)(W + 1)
= (2W + 1)(W + 1)
= 2W² + 3W + 1
Since, the room would contain 145 ft more if each side were increased by 1 foot, then its new area is A' = A + 145 = 2W² + 3W + 1
2W² + 145 = 2W² + 3W + 1
145 = 3W + 1
3W = 145 - 1
3W = 144
W = 144/3
W = 48 ft.
Since its length L = 2W, substituting W = 48 into the equation, we have
L = 2(48)
L = 96 ft
Therefore the length of the room will be 96 ft.
The area of a rectangle in a two-dimensional plane is the area that it occupies. A quadrilateral, a form of two-dimensional object with four sides and four vertices, is what a rectangle is. The rectangle's four angles are all right angles or exactly 90 degrees. The rectangle's opposing sides are equal and parallel to one another. It should be noted that a parallelogram also has equal and parallel opposite sides, but the angles are not exactly 90 degrees.
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FILL IN THE BLANK. Overall, available research suggests jurors exposed to pretrial publicity are ________________ to favor the ________________.
Answer:
Overall, available research suggests jurors exposed to pretrial publicity are more likely to favor the prosecution.
How to determine if a graph represents y as a function of x?.
Answer:
Step-by-step explanation:
If it is not possible to draw a vertical line to touch the graph of a function in more than one place, then y is a function of x. For Example: Use the vertical line test to determine if the graph depicts y is a function of x.
A pendulum of length L cm has time period T seconds.
T is directly proportional to the square root of L.
The length of the pendulum is increased by 40%.
Work out the percentage increase in the time period.
The percentage increase in the time period is 6.3245%.
Given:
A pendulum of length L cm has time period T seconds.
T is directly proportional to the square root of L.
The length of the pendulum is increased by 40%.
Let L1 and T1 be the increased pecentage.
T α [tex]\sqrt{L}[/tex]
T/[tex]\sqrt{L}[/tex] = constant
T/[tex]\sqrt{L}[/tex] = T1/[tex]\sqrt{L1}[/tex]
T1 = [tex]\sqrt{L1}[/tex] * T/[tex]\sqrt{L}[/tex]
= [tex]\sqrt{L1/L}[/tex]* T
= [tex]\sqrt{40/100 *L / L}[/tex] * T
= [tex]\sqrt{0.4}[/tex] * T
= [tex]\sqrt{0.4} *100[/tex]
= 6.3245% T
Therefore The percentage increase in the time period is 6.3245%.
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Pythagorean Theorem of an equilateral triangle?
The Pythagorean Theorem of an equilateral triangle is a²+b²=c²
What is meant by an equilateral triangle?The height of an equilateral triangle is defined as a line drawn from any vertex on the opposite side of the triangle. This is the opposite side's perpendicular bisector. This means it cuts the opposite side in half and produces a 90° angle with it. The altitude that separates an equilateral triangle into two congruent right-angled triangles is also known as the triangle's height.
To calculate the missing side lengths of an equilateral triangle, use the Pythagorean theorem and the height of the right triangles within the equilateral.
The area of an equilateral triangle can therefore be determined using the formula A = 3/4 (a2).
The Pythagorean Theorem of an equilateral triangle is,
a(√3/2a)+b(√3/2b)=c(√3/2c)
√3/2a²+√3/2b²= √3/2c²
√3/2(a²-b²)= √3/2(c²)
a²+b²=c²
This is the Pythagorean Theorem of an equilateral triangle.
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