choose the best data type for each of the following so that any reasonable value is accommodated but no memory storage is wasted. give an example of a typical value that would be held by the variable, and explain why you chose the type you did.
Answers
a. The best data type for the number of siblings would be an integer.
An example of a typical value for this variable would be 3, as someone might have 3 siblings. An integer is the best data type because the number of siblings is a whole number and can never be a fraction or a negative number.
b. The best data type for the final grade in this class would be a floating-point number. An example of a typical value for this variable would be 85.5, as a final grade may include decimal points. A floating-point number is the best data type because a final grade can have a decimal point and may include fractions.
c. The best data type for the population of Earth would be a long integer. An example of a typical value for this variable would be 7,794,798,739, as of the year 2020. A long integer is the best data type because the population of Earth is a large number and cannot be expressed using a regular integer.
d. The best data type for the population of a U.S. county would be an integer. An example of a typical value for this variable would be 100,000, as the population of a county can vary greatly. An integer is the best data type because the population of a county is a whole number and can never be a fraction or a negative number.
e. The best data type for the number of passengers on a bus would be an integer. An example of a typical value for this variable would be 20, as a bus can carry a varying number of passengers. An integer is the best data type because the number of passengers on a bus is a whole number and can never be a fraction or a negative number.
f. The best data type for one player's score in a Scrabble game would be an integer. An example of a typical value for this variable would be 45, as a score in Scrabble is calculated in whole numbers. An integer is the best data type because a score in Scrabble is a whole number and can never be a fraction or a negative number.
g. The best data type for one team's score in a Major League Baseball game would be an integer. An example of a typical value for this variable would be 7, as a team's score is calculated in whole numbers. An integer is the best data type because a team's score is a whole number and can never be a fraction or a negative number.
h. The best data type for the year a historical event occurred would be an integer. An example of a typical value for this variable would be 1776, as the year the United States declared independence. An integer is the best data type because a year is a whole number and can never be a fraction or a negative number.
i. The best data type for the number of legs on an animal would be an integer. An example of a typical value for this variable would be 4, as many animals have four legs. An integer is the best data type because the number of legs an animal has is a whole number and can never be a fraction or a negative number.
j. The best data type for the price of an automobile would be a floating-point number. An example of a typical value for this variable would be $25,000.50, as a price for a car can include decimal points. A floating-point number is the best data type because the price of a car can have a decimal point and may include fractions.
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Related Questions
How would you translate a real world verbal expression into an algebraic expression?
Answers
The Translation to algebraic expression is shown below.
What is Expression?A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:
An absolute numerical number is referred to as a constant.Variable: A symbol without a set value is referred to as a variable.Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.Coefficient: In an expression, a coefficient is a number that is multiplied by a variable.Given:
To create a variable expression for a circumstance in the actual world:
Determine which quantity is unknown in the circumstance, then define a variable to represent it.To reflect the circumstance, create an expression utilising the variable. To determine what mathematical procedures to apply, look for essential words.For example, the sum of a and b can be written as
= a+ b
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Write a piece wise function for each function graphed below.
Answers
The piecewise function for the graph is given as follows:
y = -2, x < -4.y = 0.5x + 4, -4 < x ≤ 2y = -1.5x + 1, x > 1.How to define the piecewise function?A piecewise function is a function that has different definitions, depending on the input x of the function.
The three different definitions for the function in this problem are given as follows:
x < -4.-4 < x ≤ 2.x > 2.For x < -4, the function is constant at y = -2, hence:
y = -2, x < -4.
For -4 < x ≤ 2, the function is linear, with an slope of 0.5 and intercept of 4, hence:
y = 0.5x + 4, -4 < x ≤ 2
For x > 2, the function is also linear, with slope of -1.5, hence at x = 0 it would assume a value of 1, thus:
y = -1.5x + 1, x > 1.
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73.
ILLUSTRATION 7
Find a. the length and b. the diameter of the shaft in
Answers
In the illustration given above, the length and the diameter of the shaft would be = 21.8 in and 7/8 in respectively.
How to calculate the total length of the shaft?The total length of the shaft can be calculated through the addition of the various given lengths along the shaft such as follows:
= 5⅛ + 5 + 7⅝ + 4 1/16
First convert all the mixed fraction into single fraction;
= 41/8 + 5/1 + 61/8 + 65/16
= 82+80+122+65/16
= 349/16
= 21.8 in.
The diameter of the shaft can be calculated as follows;
= 7¼ - (3 3/16 + 3 3/16 )
First convert all the mixed fraction into single fraction;
= 29/4 - (51/16 + 51/16)
= 29/4 - 102/16
= 116-102/16
= 14/16
= 7/8 in.
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A newspaper randomly chooses 100 names from it's subscriber database and then survey's those subscribers to find if they read the restaurant review is this biased or non biased
Answers
Answer:
Non biased (kind of)
Step-by-step explanation:
It depends on how they randomly chose but if it was truly random it would be non biased as many people will read newspapers for things such as sports or catalogs
Lisa's average score on 4 tests is 82. What does she need to score on her fifth test to have an average final score of 85?
Answers
Answer:
Lisa would need to score 97 on her 5th test.
Step-by-step explanation:
If Lisa has an average score of 82 on 4 tests, then the total sum of her scores would be 82 multiplied by 4, which is equal to 328.
If she wants an average final score of 85 over 5 tests, then the total sum of her scores needs to be 425 (i.e. 85 multiplied by 5).
To determine what she needs to get on her 5th test we need to subtract 328 from 425.
425 - 328 = 97
5x5+67-85=
PLS HURRY
Answers
Answer:
7
Step-by-step explanation:
We start doing the multiplication, and [tex]5 \cdot 5 = 25[/tex]. So we can rewrite it as [tex]25 + 67 - 85.[/tex] Now we work from left to right, where we calculate [tex]25 + 67 = 92[/tex]. Now the final step, [tex]92 - 85 = 7.[/tex] Therefore, the answer is [tex]\boxed{7.}[/tex]
Answer:
sry for being late the answer is 7……I did it in my head and double checked with a calculator. Go ahead and give the other person brainliest they did it first! Hope I helped to!!
Step-by-step explanation:
An angle is measures 139.6 less than the measure of its supplementary what is the measure of each angle
Answers
Answer:
788883332220+2648340
Step-by-step explanation:
what is energy transferred
Can some one help sovle this?
-
Answers
By using the graph of the piecewise function we can see that:
f(0) = 0.
How to find the value of f(0)?Here we have the graph of a piecewise function, and we want to find the function when x = 0.
Remember that on a graph, an open circle means that the value does not belong to the graph, while a closed circle means taht the value belongs to the graph.
Here we can see that the closed circle at x = 0 is on the line at the middle, then we can conclude that f(0) = 0.
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help with question 17
Answers
Answer:
hundredths
Step-by-step explanation:
i need help with this one?
Answers
The best description of the transformation for the image being projected on the retina is A. A dilation with a scale factor between 0 and - 1 and center at the nodal point.
How does the nodal point dilate the retina ?An mage is inverted and reversed as it passes through the lens of the eye, and is then projected upside down and reversed onto the retina. The process of transforming the image is called "rectification."
In mathematical terms, a dilation would have taken place because the object was shrunken by the eyes at the nodal point. When an object shrinks , then the scale factor is between 0 and 1 but because this image is inverted, the scale factor is between 0 and - 1.
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marvin the fly starts at $(0,0).$ each step, marvin moves one unit right or one unit up. he is trying to get to his home at $(4,6)$. however, at $(1,4),$ there is a frog that will eat him if he goes through that point. in how many ways can marvin reach his home?
Answers
There are 50 ways for Marvin to reach his destination without passing through the forbidden point.
To solve this problem, we can use the unitary method. This method involves breaking the problem down into smaller, simpler units to solve it more easily.
In this case, we can break the path from Marvin's starting point to his destination into two smaller paths. The first path is from (0,0) to (1,4), and the second path is from (1,4) to (4,6).
There are five paths from the bottom left corner to the point (1,4) that do not go through the forbidden point.
Once Marvin reaches the point (1,4), he can only go up or to the right to reach his destination. So, we need to count the number of ways to get from (1,4) to (4,6)
We can visualize this by drawing another grid and counting the paths:
In total, there are
=> 5 x 10 = 50
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which expression is equivalent to 5^6
a.125 x 125 b. 6 x 5 c. 35 x 6 x 6 x 6 d. 25 x 5 x 5 x 5
Answers
The expression that is equivalent to 5^6 is A.125 x 125
What are index forms?Index forms are defined as mathematical forms of writing numbers that are too large or small in more convenient forms.
Other terms for index forms are called standard forms or scientific notations.
They are also described as numbers or variables that are raised to an exponent.
From the information given, we have that;
5⁶
This is replicating 5 in 6 places, we have the representation as;
5 × 5 × 5 × 5 × 5 × 5
Hence, the expression is 125 x 125
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Question 7 (Mandatory) (1 point)
Which point is on the graph of y = -2x + 1?
Answers
Answer:
y-intercept: (0,-1)
Step-by-step explanation:
please verify
AB and BC form a right angle at point B. If A= (-3,-1) and B=(4,4), what is the equation of BC
Answers
Answer: AB and BC form a right angle at point B, so BC is perpendicular to AB. To find the equation of BC, we can use the slope-point formula, which is y - y1 = m(x - x1), where m is the slope of the line and (x1, y1) is a point on the line.
The slope of a line perpendicular to AB can be found by finding the negative reciprocal of the slope of AB. To find the slope of AB, we need to find the difference in the y-coordinates and divide it by the difference in the x-coordinates:
m_AB = (y2 - y1) / (x2 - x1)
= (4 - (-1)) / (4 - (-3))
= 5 / 7
The slope of a line perpendicular to AB is the negative reciprocal of m_AB:
m_BC = -1 / m_AB = -1 / (5/7) = -7/5
Now that we have the slope of BC, we can use the slope-point formula to find the equation of BC. We'll use the point B = (4, 4) as (x1, y1):
y - 4 = -7/5 (x - 4)
y = -7/5 x + 4(7/5) + 4
y = -7/5 x + 36/5
So the equation of BC is y = -7/5 x + 36/5.
Step-by-step explanation:
uppose that a particular nba player makes of his free throws. assume that late in a basketball game, this player is fouled and is awarded two free throws. a. what is the probability that he will make both free throws? (to 4 decimals) b. what is the probability that he will make at least one free throw? (to 4 decimals)
Answers
Answer:
a. 0.81
b. 0.81
Step-by-step explanation:
Let's assume that the player makes x% of his free throws. Then, the probability that he will make both free throws is (x/100)^2, and he will make at least one free throw is 1 - (1 - x/100)^2.
So if he makes 90% of his free throws, then:
a. The probability that he will make both free throws is (90/100)^2 = 0.81.
b. The probability that he will make at least one free throw is 1 - (1 - 90/100)^2 = 1 - (1 - 0.9)^2 = 1 - 0.19 = 0.81.
The answers to the questions rounded to 4 decimal places are:
a. 0.81
b. 0.81
PLEASE HELP!!! ITS DUE SOON!
Answers
The solutions to the system of linear equation (x, y) are 1 and 4/3 respectively
What is system of linear equationA system of linear equations is a collection of two or more linear equations with the same variables. The goal of solving a system of linear equations is to find the values of the variables that simultaneously satisfy all the equations in the system.
From the question given;
-x + 6y = 7 ...eq(i)
6x - 30y = -34 ...eq(ii)
From eq (i)
x = 6y - 7 ..eq (iii)
Put eq (iii) into eq (ii)
6(6y - 7) - 30y = -34
36y - 42 - 30y = -34
6y - 42 = -34
6y = -34 + 42
6y = 8
y = 4/3
Put y = 4/3 into eq (i)
-x + 6(4/3) = 7
-x + 24 / 3 = 7
x = 24/3 - 7
x = 1
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A parabola can be drawn given a focus of (0, 4) and a directrix of y =
be said about the parabola?
Answers
Answer: A parabola can be defined as the set of all points that are equidistant from a focus and a directrix. Based on the information provided, the focus of the parabola is (0, 4) and the directrix is y =.
The parabola will open upwards or downwards depending on the location of the focus and the directrix. Since the focus is at (0, 4), and the directrix is at y =, the parabola must open upwards. The axis of symmetry of the parabola will pass through the focus and will be perpendicular to the directrix.
Without more information, it is not possible to fully determine the shape and equation of the parabola. The shape of the parabola and its equation can be found by using the focus and directrix and other information, such as the vertex or a point on the parabola.
Step-by-step explanation:
A Smoothie is mixed with strawberries and bananas in the ratio 7:3. Gill
makes a smoothie using 144g of bananas. How many grams of
Strawberry does she use?
Answers
Answer: et's call the amount of strawberries Gill uses "x" grams. We know that the ratio of strawberries to bananas is 7:3, so we can set up an equation:
x/144 = 7/3
To solve for x, we'll multiply both sides of the equation by 144:
x = 7/3 * 144
x = 7 * 48
x = 336
So Gill uses 336 grams of strawberries in the smoothie.
Step-by-step explanation:
What number is 30% less than 40?
Answers
Answer: 30% less than 40 is 28
Step-by-step explanation:
Answer:
The answer is 28.
Step-by-step explanation:
I'm bad at proving stuff but that's the answer I promise. (quick tip, you are more likely to get answers if you give more points. :D)
Subtract and simplify. (9^2 − 4 − 4) − (−2^3 − + 12)
Answers
Answer:
93
Step-by-step explanation:
Answer:
27
28
Step-by-step explanation:
Write as an algebraic expression: five times the difference between six less than a number
Answers
The algebraic expression is,
⇒ 5 (6 - n)
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ five times the difference between six less than a number.
Now, Let a number = n
Hence, We can formulate;
⇒ 5 (6 - n)
Thus, The value of expression is,
⇒ 5 (6 - n)
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What is the total number of digits used to number 1200 pages?
Answers
Answer:
The correct answer would be 3693
Step-by-step explanation:
9 + 180 + 2,700 + 804
3693
1200 pages were numbered using a total of 3693 digits.
What is total number?The word "total" refers to the addition of numbers or the destruction of something, and a total is a whole or complete sum. In mathematics, adding two or more numbers yields the sum. When you multiply 8 by 8, you get 16.the total of the acquisition's purchase price plus all future expenses that will be spent, including those for installation, consumables, breakdown, maintenance, and disposal. The sum is the outcome or conclusion of adding two or more numbers or phrases. As a result, the sum is a means of assembling objects. In other terms, the process of adding two or more numbers together to create a new result or total is known as the sum.Total digits equal = the digits in the 1 - digit page numbers + the 2 digit page numbers - digit page numbers + 3 digit page numbers - digit page numbers.
Then simplify,
9 + 180 + 2,700 + 804
= 3693
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13 4 73 efine a variable for the quantity that changes. Then, write an algebraic expression for the amount of etergent remaining in the container. ▸Math symbols Relations ▸ Geometry Groups ▸Trigonometry Statistics
Answers
The algebraic expression for the amount of etergent remaining in the container isy = x - 13 - 4 - 73
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
We are given that;
13 4 73
Let's define the variable 'x' to represent the amount of detergent initially present in the container.
Then, if 'y' represents the amount of detergent remaining in the container, we can write an algebraic expression for it as:
y = x - 13 - 4 - 73
where:
13 represents the amount of detergent used on the first day
4 represents the amount of detergent used on the second day
73 represents the amount of detergent used on the third day
By subtracting the total amount of detergent used from the initial amount 'x', we get the remaining amount 'y'.
Therefore, the expression will be y = x - 13 - 4 - 73.
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A water bottle holds 72 ounces of water. How many cups does the water bottle hold? (1 cup = 8 fluid ounces) 4 cups 8 cups 9 cups 64 cups
Answers
Answer:
9 cups
Step-by-step explanation:
1 cup is 8 ounces
72/8 is 9
Which choice best describes EB
radius
diameter
Line F
Point
Answers
The best describes EB is diameter of circle because it is a chord of circle which passes through the center.
What is a circle?A circle is a two-dimensional object made up of points that are spaced out from a given point (centre) on the plane by a fixed or constant distance (radius). The fixed point is referred to as the circle's origin or centre, and the fixed distance between each point and the origin is referred to as the radius.
The following components make up a circle:
Circumference: Also known as a circle's perimeter, circumference is the distance a circle travels around its circumference.
Radius: The radius is the distance a circle's center is from any point on its edge.
A diameter is a straight line that links two places on the circle's edge and passes through the center.
So that EB is describes as diameter of circle because it is a chord of circle which passes through the center.
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A rectangle has a length of ( + ) and a width of ( − ). Determine the expression that represents the area of this rectangle.
Answers
Answer:
Step-by-step explanation:
The expression that represents the area of a rectangle with length (l) and width (w) is given by:
A = l * w
Therefore, the expression that represents the area of a rectangle with a length of ( + ) and a width of ( − ) can be represented as:
A = ( + ) * ( − ) = + × − = + (−) = −.
6x + 24/5x - 35 times 9x - 63/7x + 28 rational expression
Answers
Answer:
Step-by-step explanation:
6(x + 4)/5(x - 7) * 9(x - 7)/7(x + 4) =
Cancel the x + 4 and x - 7
54/35
Company F sells fabrics known as fat quarters, which are rectangles of fabric created by cutting a yard of fabric into four pieces. Occasionally the manufacturing process results in a fabric defect. Let the random variable X represent the number of defects on a fat quarter created by Company F. The following table shows the probability distribution of X.
X 0 1 2 3 4 or more
probability 0. 58 0. 23 0. 11 0. 05 0. 03
If a fat quarter has more than 2 defects, it cannot be sold and is discarded. Let the random variable Y represent the number of defects on a fat quarter that can be sold by Company F.
(a) Construct the probability distribution of the random variable Y.
(b) Determine the mean and standard deviation of Y. Show your work.
Company G also sells fat quarters. The mean and standard deviation of the number of defects on a fat quarter that can be sold by Company G are 0. 40 and 0. 66, respectively. The fat quarters sell for $5. 00 each but are discounted by $1. 50 for each defect found.
(c) What are the mean and standard deviation of the selling price for the fat quarters sold by Company G?
Answers
The probability distribution of the random variable Y is 0.63, 0.25, 0.12. The mean of y is 0.4899 and the std deviation of y is 0.6999 and the mean of the selling price for the fat quarters sold by Company G is $4.4 and the std deviation for the same is $0.99
a) x = number of defects on a fat quarter
to be sold, X must be, X ≤ 2
y = number of defects on the sellable fat quarter,
now from the table, P [fat quarter being sellable]
=P [X ≤ 2]
=0.58 + 0.23 + 0.11
= 0.92
Therefore, P[y-0] = P[x=0Ix≤2]
=[tex]\frac{P[x=0][x < 2]}{P[x < 2]}[/tex]
=P[y=0] = 0.63
P[y=1] = P[x=1Ix≤2]
P[y=1] = [tex]\frac{0.23}{0.92}[/tex]
=0.25
P[y=2] = P[x=2Ix≤2]
P[y=2] = [tex]\frac{0.11}{0.92}[/tex]
= 0.12
y------------------0--------1---------2
probability---0.63----0.25----0.12
b)mean of y = E(y)
=0²×0.063+1×0.25+2×0.12
=0.25+0.24
=0.49
now we know that E(y²) = 0²×0.63+1²×0.25+2²×0.12
=0.25+0.48
=0.73
E(y²) - [E(y)]²
=0.73-0.49²
=0.4899
std deviation of y = 0.6999
c) now that we have E(G) = 0.40, √v(G) = 0.66
let s be selling price of fat quarters, then s = 5.00 - 1.50 × (G)
therefore = 5-1.5×0.4
=5-0.6
=$4.4 is the mean selling price.
now for the standard deviation price = v[5-1.5G]
=v(5)+1.5² v(G)
=0+2.25×0.66²
=v(s)= 0.9801
standard deviation of sp =√v(s)
=$0.99
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Emma is starting a cupcake business and borrows money from Dixons dynamite deals (DDD) .she agrees to pay back the loan after 10 years by making one payment of 80,000 , interest is compounded and fixed at 14,6% per annum.hpw much did emma borrow from (DDD) ?
Answers
The amount (present value) that Emma borrowed from Dixons Dynamite Deals (DDD) to repay after 10 years with a one-time payment of $80,000 at 14/6% compounded interest per annum is not more than $20,475.94.
Step-by-step explanation:
To find out how much Emma borrowed from Dixons Dynamite Deals (DDD), we can use the formula for the future value of a loan with compound interest:
Future Value (FV) = Principal Amount (P) * (1 + r)^n
Where:
P = Principal amount (the amount borrowed)
r = Interest rate per period (in decimal form)
n = Number of periods
In this case:
Future Value (FV) = $80,000 (the payment Emma will make after 10 years)
Interest rate (r) = 14.6% per annum = 0.146 (in decimal form)
Number of periods (n) = 10 years
Now, let's calculate the principal amount (P):
$80,000 = P * (1 + 0.146)^10
Now, let's solve for P:
P = $80,000 / (1.146)^10
P ≈ $80,000 / 2.97804
P ≈ $26,874.94
So, Emma borrowed approximately $26,874.94 from Dixons Dynamite Deals (DDD) to start her cupcake business.
Please mark as Brainliest
2. Mick recorded the lengths of 10 Steller sea lions. Which length occurs most often?
3. Make a line plot. Draw a dot for each value. Stack dots for values that occur more than once.
Steller Sea Lion Lengths
−2
81/1/21
9 911 9/1/201
Length (in feet)
DATA
Steller Sea Lion Lengths (in feet)
9: 9 8/3/10
9
91/1
8
9 1/1 9 1/1/0
9/1/12
1438
9/3/3
91/1
18
Answers
Answer:feet occurs most often. Mick recorded the lengths of 10 Steller sea lions.
Step-by-step explanation:feet occurs most often. Mick recorded the lengths of 10 Steller sea lions.
