Answer:
The height of the tree to the nearest foot is 75.
Step-by-step explanation:
The height is opposite the angle of elevation, and the 45 ft distance to the tree is adjacent to it.
tangent = opposite/adjacent
[tex]\frac{tan(59)}{1} = \frac{h}{45}[/tex]
h = tan(59) * 45
h ≈ 74.89
To the nearest foot, 74.89 is 75 ft.
6 ft 9.5 ft 6 ft 8.5 ft Which measurement is closest to the area of the desk in square feet?
The measurement that is closest to the area of the given desk would be = 103.26ft²
How to calculate the area of the desk?To calculate the area of the desk is to determine both the area of a trapezium and a quarter circle and add up the areas derived.
The formula of the area of trapezium = ½(a+b)h
where;
a = 9.5ft
b = 9.5+6 = 15.5
h = 6ft
area =½(9.5+15.5 )×6
= 25/2×6
= 75ft²
The area of quarter circle = πr²/4
r = 6ft
area = 3.14×36/4
= 3.14× 9
= 28.26ft²
Therefore the area of the shape;
= 75+28.26 = 103.26ft²
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A room has the dimesnsions of 8 feet by 10 feet. The height of the basement is 9 feet. What is the area of all 4 walls?
Step-by-step explanation:
Two walls are 8x 9 and two walls are 10 x 9
8x9 x2 + 10x9 x2 = 324 ft^2
The probability that Cody will be first in the 50m backstroke Is 25%. What are the odds In favour of him being first?
Answer:
To find the odds in favor of Cody being first, we need to divide the probability of him winning (25%) by the probability of him not winning (75%).
Odds in favor of Cody winning = 25% / (100% - 25%) = 25% / 75%
Simplifying, we get:
Odds in favor of Cody winning = 1/3
Therefore, the odds in favor of Cody being first in the 50m backstroke are 1 to 2 (or 1:2).
Which of the following are examples of acceleration?
MORE THAN ONE ANSWER
Question options:
A) A runner slows down after passing another runner.
B) A runner speeds up at the end of a race.
C) A runner turns the corner on a track at a constant speed.
D) A runner moves along the straight part of a track at a constant speed.
Don't use ChatGPT and I'm pretty sure one has to be B
Examples of acceleration are given as follows:
A) A runner slows down after passing another runner.
B) A runner speeds up at the end of a race.
What is the concept of acceleration?The concept of acceleration is that the acceleration is defined as the change in the speed divided by the change in time, that is:
Acceleration = Change in speed/Change in time.
Hence any instance involving slowing down or speeding up involve acceleration, as it is the case for options A and B.
For options C and D, they do not involve acceleration, as the constant speed means that the change in the speed is of zero, hence the acceleration is also of zero.
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A cook removes a package of food from a freezer and begins to defrost the package. • The initial temperature of the package of food is -15°F. • At noon, the temperature of the package of food has increased to 35°F. What is the total change in temperature, in degrees Fahrenheit, for the package of food? Show your work.
Answer:
50 degrees Fahrenheit
Step-by-step explanation:
add 15f to cancel -15f and add the 35f left which is 50f
Write the equation for the function represented
Answer:
Step-by-step explanation:
formula for equation is
y=mx+b
b= y-intercept, meaning when x is 0, y=b
b= -1
m is slope = rise/run or [tex]\frac{y_{2}- y_{1} }{x_{2}- x_{1} }[/tex]
(1,2) (2,5)
m=[tex]\frac{5-2}{2-1} = \frac{3}{1}[/tex] I picked the last 2 points because positive numbers are easier
m=3
now put into formula
y=3x-1
After 20 minutes Juan had completed 14 questions, which is 0.7 of his assignment. What fraction of the assignment had Juan NOT completed?
Answer:
Juan has completed 0.7 of his assignment, which means he has not completed 0.3 of his assignment. This can also be expressed as a fraction: 3/10. Therefore, Juan has not completed 3/10 of his assignment.
Step-by-step explanation:
each digit shown below to create a 5-digit number with the greatest value and a
5-digit number with the least value. Each digit can only be used once in each number. Ther
write a number sentence using >,<, or = to compare the two numbers you created.
2, 9, 1, 3, 8
Answer:
at a certain company there are two managers, five office clerks, seven stock boys, three foreman, six secretaries, and four shipping clerks. How many different ways can a stock boy and a secretary be selected?
As per the given data, there are 42 different ways a stock boy and a secretary can be selected.
Based on the given information, there are 7 stock boys and 6 secretaries at the company. To find out how many different ways a stock boy and a secretary can be selected.
To find the number of ways a stock boy and a secretary can be selected, we need to multiply the number of choices for each position.
There are 7 stock boys to choose from, and 6 secretaries to choose from.
Therefore, the total number of ways a stock boy and a secretary can be selected is:
7 x 6 = 42
Thus, there are 42 different ways a stock boy and a secretary can be selected.
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1.
4m
Find the area of the polygon
[tex]\underset{ \textit{angle in degrees} }{\textit{area of a regular polygon}}\\\\ A=\cfrac{ns^2}{4}\cot\left( \frac{180}{n} \right) ~~ \begin{cases} n=\stackrel{sides'}{number}\\ s=\stackrel{side's}{length}\\[-0.5em] \hrulefill\\ n=9\\ s=4 \end{cases}\implies A=\cfrac{(9)(4)^2}{4}\cot\left( \frac{180}{9} \right) \\\\\\ A=36\cot(20^o)\implies A\approx 98.91~m^2[/tex]
Make sure your calculator is in Degree mode.
Step-by-step explanation:
Area = 1/2 apothem × perimeter
Area = 1/2 apothem × perimeter A= 1/2 r cos(20) × N × S
Area = 1/2 apothem × perimeter A= 1/2 r cos(20) × N × S we need to find radius so
Area = 1/2 apothem × perimeter A= 1/2 r cos(20) × N × S we need to find radius so s = 2rsin(180/90)
Area = 1/2 apothem × perimeter A= 1/2 r cos(20) × N × S we need to find radius so s = 2rsin(180/90)4 = r ( 2 sin(20) )
Area = 1/2 apothem × perimeter A= 1/2 r cos(20) × N × S we need to find radius so s = 2rsin(180/90)4 = r ( 2 sin(20) )r = 4/ ( 2 sin(20)
Area = 1/2 apothem × perimeter A= 1/2 r cos(20) × N × S we need to find radius so s = 2rsin(180/90)4 = r ( 2 sin(20) )r = 4/ ( 2 sin(20)r = 5.847 approximate to 6
when we go back
A = 1/2( 6 × cos(180/n) )×9×4
A = 1/2( 6 × cos(180/n) )×9×4A = 1/2( 6 × cos(180/9) )×9×4
A = 1/2( 6 × cos(180/n) )×9×4A = 1/2( 6 × cos(180/9) )×9×4A = 101.486m2 app|ozximate to 102 m2
Linear function K passes through points (-3, 7) and (3, 3). What is the rate of change of function K?
A -3/2
B-2/3
C 3/2
D 2/3
the slope goes by several names
• average rate of change
• rate of change
• deltaY over deltaX
• Δy over Δx
• rise over run
• gradient
• constant of proportionality
however, is the same cat wearing different costumes.
[tex](\stackrel{x_1}{-3}~,~\stackrel{y_1}{7})\qquad (\stackrel{x_2}{3}~,~\stackrel{y_2}{3}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{\textit{\large rise}} {\stackrel{y_2}{3}-\stackrel{y1}{7}}}{\underset{\textit{\large run}} {\underset{x_2}{3}-\underset{x_1}{(-3)}}} \implies \cfrac{-4}{3 +3} \implies \cfrac{ -4 }{ 6 } \implies - \cfrac{2}{3}[/tex]
Could someone help with this question??
Answer:
(i) [tex]B^c =[/tex] {1, 4, 6, 8}
(ii) A - (B - C) = {4, 6, 8}
(iii) A ∩ (B ∪ C) = {2, 3, 5, 7}
Step-by-step explanation:
We have the following sets
Universal set U = {x ∈ N, x ≤ 8}
This would all the numbers from 1 to 8 inclusive
U = {1, 2, 3, 4, 5, 6, 7, 8}
Set A = {x : 1 < x² < 65}
This would be all the numbers from U such that the square of those numbers lies between 1 and 65
Thus
A = {2, 3, 4, 5, 6, 7 ,8}
We exclude 1 because 1² = 1 is not included in the set definition
Highest is 8 because 8² = 64 < 65 and also 8 is the highest element in the set U
B = (x ∈ N: x is a prime number less than 10}
B = {2, 3, 5, 7 } these being the prime numbers less than 10
C = {x: x³ + 1 = 0, x ∈N}
if x³ + 1 = 0 ==> x³ = -1 and there is only one value of x that satisfies this relationship and that is x = -1 since (-1)³ = -1 and (-1)³ + 1 = 0
Now that we have enumerated the elements of all 4 sets we can solve the questions
(i) [tex]B^c[/tex] is the complement of set B = set of all elements not in set B
This would be the set of all numbers from 1 through 8 that are not prime
[tex]B^c[/tex] ={x: x is not a prime number and ≤ 8}
= {1, 4, 6, 8}
(ii) A - (B - C)
B - C is the set difference between B and C
It is the set of all elements in B that are not in C
Since B = {2, 3, 5, 7} and C = {-1} no element of B appears in C so
B - C = B = {2, 3, 5, 7}
A - (B - C) = A - B
{2, 3, 4, 5, 6, 7 ,8} - {2, 3, 5, 7} = {4, 6, 8}
(iii) A ∩ ( B ∪ C)
B ∪ C = {2, 3, 5, 7} ∪ {-1} = {-1, 2, 3, 5, 7}
A ∩ (B ∪ C) = {2, 3, 4, 5, 6, 7 ,8} ∩ {-1, 2, 3, 5, 7}
= {2, 3, 5, 7}
= B
I hope I got it right :)
Let the predictor variable x represent heights of males and let response variable y represent weights of males. A sample of 154 heights and weights results in se = 16.49232 cm. In your own words, describe what that value of se represents Choose the correct answer below. O A. The value of s, is the standard deviation of e, which is a measure of the differences between the observed weights and the weights predicted from the regression equation OB. The value of s, is the standard deviation of e, which is a measure of the differences in standard deviations for the two samples OC. The value of s, is the standard error of the estimate, which is a measure of the differences in standard deviations for the two samples. OD. The value of s, is the standard error of the estimate, which is a measure of the differences between the observed weights and the weights predicted from the regression equation.
The correct option is D that is the value of se represents the standard error of the estimate, which is a measure of the variability of the errors in predicting the response variable (weights) from the predictor variable (heights) using the regression equation.
Specifically, se represents the standard deviation of the residuals, which are the differences between the observed values of the response variable and the values predicted by the regression equation. A smaller value of se indicates that the regression equation provides a better fit to the data and that the predictions of the response variable are more accurate.
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Mrs. Jacobson asked her students to write a word problem that describes the graph below.
A graph has days on the x-axis and money on the y-axis. A line goes through points (0, 8) and (4, 0).
Which word problem accurately describes the graph?
Jamie has $8, and she pays $2 per day to ride the bus.
Melinda has $4 and earns $2 allowance per day doing chores.
Carrina has $8, and she earns $2 per day babysitting.
Louise has $4, and she pays $2 per day for school lunch.
PART 1
John is saving money to buy a car. He takes $8,000 to the bank and opens an annual CD upon which the bank agrees to pay him 2% interest.
Principal = 8000
Term = 1 year
APR = 2% = 0.02
8000 x 0.02 = $160
8000 + 160 = $8,160
Beginning Balance
2% Interest
Ending Balance
$8,000.00
$160
$8,160
After one year, Michael earned $160 in interest on his initial deposit of $8,000, so his balance is now $8,160.
Calculate the Annual interest below (first image):
PART B:
Now, let’s say John leaves his money in the bank for four years. The term of the annual CD is four years, so he will be earning 2% interest per year for four years. Since this is an annual CD, interest will be added to the principal at the end of every year. This is called annual compounding. Complete the following table (2nd Image), filling in the cells for years 5 through 10.
John will earn an annual interest of $500 on a beginning balance of $10,000 at a rate of 5% per year. After one year, the ending balance will be $10,500. John earned $160 in interest after leaving his initial deposit of $8,000 in the bank for first year with annual compounding at a 2% interest rate. His ending balance was $8,160. The table shows his ending balance for years 5-10.
We can use the formula for simple interest to calculate the annual interest earned by John on a balance of $10,000 at a rate of 5% per year
Annual interest = (Principal x Rate x Time) / 100
where Principal is the beginning balance, Rate is the interest rate, and Time is the duration of investment in years.
Substituting the given values, we get
Annual interest = (10000 x 5 x 1) / 100 = $500
Therefore, the annual interest earned by John on a balance of $10,000 at a rate of 5% per year is $500.
Ending balance after one year = Beginning balance + Annual interest = $10,000 + $500 = $10,500.
since the term of the annual CD is four years, and John will leave his money in the bank for four years, we can calculate the ending balance at the end of each year using the formula above.
For year 5
P = $8,160
r = 0.02
n = 1
t = 1
A = $8,160 (1 + 0.02/1)^(1x1) = $8,324.80
For year 6
P = $8,324.80
r = 0.02
n = 1
t = 1
A = $8,324.80 (1 + 0.02/1)^(1x1) = $8,492.78
For year 7
P = $8,492.78
r = 0.02
n = 1
t = 1
A = $8,492.78 (1 + 0.02/1)^(1x1) = $8,664.28
For year 8
P = $8,664.28
r = 0.02
n = 1
t = 1
A = $8,664.28 (1 + 0.02/1)^(1x1) = $8,839.44
For year 9
P = $8,839.44
r = 0.02
n = 1
t = 1
A = $8,839.44 (1 + 0.02/1)^(1x1) = $9,018.34
For year 10
P = $9,018.34
r = 0.02
n = 1
t = 1
A = $9,018.34 (1 + 0.02/1)^(1x1) = $9,201.05
Therefore, the table for years 5 through 10 would look like
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why is the domain of sin^-1(x) and cos^-1(x) are different while the domain of sin(x) and cos(x) are the same?
The domain of sin^-1(x) and cos^-1(x) are different while the domain of sin(x) and cos(x) are the same is due to the inverse properties and the range of their respective functions.
The domain of sin(x) and cos(x) are the same because both are trigonometric functions that can accept any real number as input, meaning their domain is all real numbers (-∞, ∞).However, when we consider their inverse functions, sin^-1(x) and cos^-1(x), we need to restrict their domain to ensure that these inverse functions are well-defined and unique. The range of sin(x) is between -1 and 1, so the domain of sin^-1(x) is restricted to the interval [-1, 1]. Similarly, the range of cos(x) is also between -1 and 1, but its behavior is different from sin(x), so the domain of cos^-1(x) is also restricted to the interval [-1, 1].Know more about the domain
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What is the median of the data represented by the stem
and leaf plot above?
Hint: Use the key to determine the individual values
MEDIAN middle data value when values are listed least to greatest
A 108.75
B 57
C 309
The median of middle data values is 57.
Hence option (B) is correct.
In the given table;
total number of digits = 20
Since 20 is even number
Therefore its median = 20/2 + 1
= 11
So the 11th digit of table is 7
Which gives index 5
Now according to the defined key 5|7 = 57
Hence median = 57
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at a bus station buses begin their routes at 7:30 am the schedule of the buses is based on time intervals listed below.what is the next time bus a and bus b will leave the bus station at the same time
Answer:
To determine when Bus A and Bus B will leave the station at the same time, we need to find the least common multiple (LCM) of their time intervals.
The time intervals for Bus A and Bus B are:
Bus A leaves every 45 minutes (i.e. intervals of 45 minutes)
Bus B leaves every 60 minutes (i.e. intervals of 60 minutes)
To find the LCM of 45 and 60, we can first factor each number into its prime factors:
45 = 3 x 3 x 5
60 = 2 x 2 x 3 x 5
The LCM is the product of the highest power of each prime factor, so:
LCM(45, 60) = 2 x 2 x 3 x 3 x 5 = 180
Therefore, Bus A and Bus B will leave the station at the same time every 180 minutes, or every 3 hours.
Since the buses begin their routes at 7:30 am, we can add multiples of 3 hours to this time to find when Bus A and Bus B will leave together.
The first time after 7:30 am when Bus A and Bus B leave together is:
7:30 am + 3 hours = 10:30 am
So Bus A and Bus B will leave the station together at 10:30 am, and then every 3 hours after that.
How to do this question????
The values of A-B and B-A are 27 and 36.
We are given that;
WA=(x/x=3".n≤6,nEN)
B= (x/x=9",n≤ 4,n € N)
Now,
First, let’s write the sets A and B using roster notation, which means listing all the elements inside curly braces.
A = {x | x = 3n, n ≤ 6, n ∈ N} = {3, 6, 9, 12, 15, 18}
B = {x | x = 9n, n ≤ 4, n ∈ N} = {9, 18, 27, 36}
Now, let’s find A - B by removing the elements that are common to both sets from A.
A - B = {3, 6, 9, 12, 15, 18} - {9, 18, 27, 36} = {3, 6, 12, 15}
Similarly, let’s find B - A by removing the elements that are common to both sets from B.
B - A = {9, 18, 27, 36} - {3, 6, 9, 12, 15, 18} = {27, 36}
Therefore, by the equation the answer will be 27 and 36.
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0
What number does the point show?
OA.
B. 1
ن
413
OD.
OE
34
5
Đ
Answer:
3/4
Step-by-step explanation:
there are 4 spots and it is on the the third of them
Miguel has 3 1-gallon containers each 3/4 full of water how many cups of water are there
GEOMETRY- pls help i’m so bad at this (worth 25 pts)
The value of x for the intersecting secants is derived to be equal to 10.7 to the nearest tenth.
What is the intersecting secant theoremThe intersecting secant theorem, also known as the secant-secant theorem, states that when two secant lines intersect outside a circle, the product of the length of one secant segment and its external segment is equal to the product of the length of the other secant segment and its external segment.
(x - 3)(x + 1) = 6 × 15
x² + x - 3x - 3 = 90
x² - 2x - 93 = 0
using the quadratic formula;
x = 10.7 or x = -8.7
The segments must be positive so we take x = 10.7 so that;
x + 1 = 11.7
x - 3 = 7.7
Therefore, the value of x for the intersecting secants is derived to be equal to 10.7 to the nearest tenth.
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What is the total volume of Mountain Dew in this six pack? Each can is 5 inches tall and has a diameter of 3 inches.
The total volume of Mountain Dew in this six-pack is approximately 212.058 cubic inches.
Assuming that each can in the six-pack of Mountain Dew is cylindrical in shape, we can use the formula for the volume of a cylinder to calculate the volume of each can, and then multiply that by the total number of cans in the pack.
The formula for the volume of a cylinder will be;
V = πr²h
where V is volume, r is radius (half the diameter), and h is height.
The radius of each can is 1.5 inches (half of 3 inches), and the height is 5 inches. So the volume of each can is;
V = π(1.5)²(5) = 35.343 cubic inches
To find the total volume of the six-pack, we need to multiply this by the number of cans;
Total volume = 35.343 cubic inches/can × 6 cans
= 212.058 cubic inches
Therefore, the total volume is 212.058 cubic inches.
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Tessa designs a supply closet as an addition to her house. The closet is pictured, and its total area is 36 square feet. What is the length in feet of the side of the supply closet labeled with the question mark? fill in the blank
___feet
thank you
Answer: The length of the side of the supply closet is 6 feet
Step-by-step explanation:
1. We can separate the box into 2 rectangles.
3 x 8 and 2 x y
3 x 8 = 24
2. The whole closet is 36
36 - 24 = 12
3. The area of the 2 x y rectangle is 12
12/2 = 6
So the length of the y side is 6 feet.
a 41 gram sample of a substance that's used to detect explosives has a k value of 0.1392 find the substance's half life in days round your answer to the nearest tenth
If, 41 gram sample of a substance that's used to detect explosives has a k value of 0.1392 then, the substance's half-life is approximately 4.98 days.
Half-life is the time it takes for half of the atoms in a radioactive substance to decay. It is a characteristic property of a specific radioactive substance and is independent of its amount or condition.
The half-life formula is given by;
[tex]t_{1/2}[/tex] = (ln 2) / k
where k is the decay constant.
Given k = 0.1392, we can find the half-life as follows;
[tex]t_{1/2}[/tex] = (ln 2) / k
[tex]t_{1/2}[/tex] = (0.693) / 0.1392
[tex]t_{1/2}[/tex] = 4.978 days
Therefore, the half-life of the substance's will be 4.98 days.
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How many solutions are possible?
y = 5x + 3
2y = 10x + 6
O one
O two
O No
O infinite
Answer:
infinite number of solutions
Step-by-step explanation:
y = 5x + 3 → (1)
2y = 10x + 6 → (2)
substitute y = 5x + 3 into (2)
2(5x + 3) = 10x + 6
10x + 6 = 10x + 6
since both sides are the same then any value of x will make the equation true.
This means there are an infinite number of solutions to the system
Answer:
Step-by-step explanation: there are infinite solutions
when comparing three or more populations means within a set of quantitative data that is categorized according to one​ factor/treatment, a​ one-way anova is appropriate. it is also appropriate in this​ situation, however, to compare two means at a time using multiple independent two sample​ t-tests. true or​ false?
True. it is also appropriate to compare two means at a time using multiple independent two-sample t-tests in the same situation.
While a one-way ANOVA is appropriate for comparing three or more populations means within a set of quantitative data that is categorized according to one factor/treatment, it is also appropriate to compare two means at a time using multiple independent two-sample t-tests in the same situation.
However, using multiple t-tests may increase the probability of making a Type I error, so it is important to adjust the significance level or use a method such as the Bonferroni correction to account for multiple comparisons.
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Harry goes to Hogwarts School of Witchcraft and Wizardry. He can travel to school and back in
3
33 different ways: by the Hogwarts Express, a flying car, or the Knight Bus. He's decided to choose his methods of transportation to and from Hogwarts at random this year.
Which of these tables lists all the different ways Harry can get to Hogwarts and back? (Each row represents one outcome.)
Choose all answers that apply:
Choose all answers that apply:
(Choice A) Table A
A
Table A
(Choice B) Table B
B
Table B
Table A:
To Hogwarts From Hogwarts
Knight Bus Knight Bus
Knight Bus Flying Car
Knight Bus Hogwarts Express
Flying Car Knight Bus
Flying Car Flying Car
Flying Car Hogwarts Express
Hogwarts Express Knight Bus
Hogwarts Express Flying Car
Hogwarts Express Hogwarts Express
Table B:
To Hogwarts From Hogwarts
Knight Bus Hogwarts Express
Flying Car Flying Car
Hogwarts Express Knight Bus
Knight Bus Knight Bus
Flying Car Hogwarts Express
Hogwarts Express Flying Car
Knight Bus Flying Car
Flying Car Knight Bus
Hogwarts Express Hogwarts Express
Table B lists all the different ways Harry can get to Hogwarts and back. See the attached tables.
What explanation justifies the above?One mus tnote that both tables detail all of the alternative routes Harry can take to and from Hogwarts, however Table B is the only one that lists all of the different modes of transportation.
Table B includes all of the potential scenarios in which Harry can use the Knight Bus, Flying Car, or Hogwarts Express to and from Hogwarts, including situations in which he uses the same form of transportation both times. Table A, on the other hand, simply covers transit combinations, not all conceivable outcomes. So it is correct to state that as a result, Table B is the right solution.
See attached tables.
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A 26-volume encyclopedia is placed on a bookshelf in numerical order. Each volume is 3 inches thick, including the front and back covers. Each cover is 1 4 inch thick. The volumes are placed on the shelf so that the front cover is on the right side of each volume and the back cover is on the left side of each volume. A bookworm eats straight through the encyclopedia, beginning inside the front cover of the first volume and ending after eating through the back cover of the last volume. How many inches of book did the bookworm eat?
Answer:
The encyclopedia has 26 volumes, each 3 inches thick. Since each volume has a front and back cover that is 1/4 inch thick, the actual pages in each volume are 3 - 1/4 - 1/4 = 2 1/2 inches thick.
To find the total thickness of all the pages in the encyclopedia, we can multiply the thickness of one volume by the number of volumes:
Total thickness of pages = 2 1/2 inches/volume x 26 volumes = 65 inches
Since the bookworm ate through the front cover of the first volume and the back cover of the last volume, it did not eat through 2 1/2 inches of pages for those volumes. Therefore, the bookworm ate through:
65 inches - 2 1/2 inches - 2 1/2 inches = 60 inches
So the bookworm ate through 60 inches of book.
a) Express √√√3+ √12 in the form a√3 where a is an integer. √3 b) (i) Express 1 (5) in the form b√3 where b is an integer. 1 (ii) Express (5) 3 in the form 3 C where c is an integer. √√3 √3
Answer & Step-by-step explanation:
a)
√√√3 + √12
= √√(3)^(1/2) + √(4 x 3)
= √√(√3)^2 + √(4 x √3)^2
= √(√3 + 2√3)
= √3(1 + 2)
= 3√3
Therefore, √√√3 + √12 can be expressed in the form of a√3, where a = 3.
b)
(i)
1 + √(3)
To rationalize the denominator, we multiply the numerator and denominator by √3:
= 1 + √(3) * √(3) / √(3)
= 1 + √(9) / √(3)
= 1 + 3√(3) / 3
= (3 + √(3)) / 3
Therefore, 1 + √(3) can be expressed in the form of b√3, where b = (3 + √3) / 3.
(ii)
(5)^(1/3)
To rationalize the denominator, we multiply the numerator and denominator by √(3):
= (5)^(1/3) * √(3) / √(3)
= (5√(3)) / √(27)
= (5√3) / (3√3)
= (5/3)√3
Therefore, (5)^(1/3) can be expressed in the form of c√3, where c = 5/3.