Test Scores
100
90
80
70
60
50
40
30
20
10
0
Test Scores in Relation to Homework
3
4
5 6
Hours of Homework
+x
7 8 9 10
Draw a line of best fit for the
graph.
Based on the line your drew,
what is the likely test score of a
student who does not study for
the test?
Answers
Test score of a student who does not study for the test 70%.
What is percentage?A figure or ratio that may be stated as a fraction of 100 is a percentage. If we need to calculate a percentage of a number, we should divide it by its entirety and then multiply it by 100.
The proportion therefore refers to a component per hundred. Per 100 is what the word percent means. The sign "%" is used to denote it.
Out of a hundred is what the word "percent" refers to. Percentages are used in mathematics to represent subsets of a whole, just like fractions and decimals are. The whole is thought of as being composed of 100 equal parts when using percentages. As a less common alternative, the abbreviation "pct" may be used to indicate that a number is a percentage.
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Related Questions
Assertion : If both zeros of the quadratic polynomial x k2 2 x 2 − + are equal in magnitude but opposite in sign then
value of k is ½.
Reason : Sum of zeros of a quadratic polynomial ax bx c 2 + + is a
-b
Answers
The assertion that both zeros of the quadratic polynomial x² - 2kx +2 in magnitude but opposite in sign then value of k is 1/2 is false.
How to obtain the sum of the roots of the quadratic function?The standard definition of a quadratic function is given as follows:
y = ax² + bx + c.
The sum of the roots of a quadratic function is given as follows:
S = -b/a.
The equation in this problem is given as follows:
x² - 2kx +2
Hence the parameters are:
a = 1, b = -2k.
If the roots are equal in magnitude but the opposite sign, the sum of the roots is of:
0.
Hence:
-b/a = 0.
b = 0.
Meaning that the value of k is obtained as follows:
-2k = 0.
k = 0.
And the statement is false.
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What is the inverse of the logarithmic function f/x log9 X?.
Answers
The inverse of the logarithmic function f(x) = [tex]\log_{e}x[/tex] is [tex]e^{x}[/tex].
In the given question, we have to find the inverse of the logarithmic function f(x) = [tex]\log_{e}x[/tex].
The given function is f(x) = [tex]\log_{e}x[/tex].
The features of logarithms will simply follow from our understanding of exponents if the logarithm is viewed as the inverse of the exponential function.
Now let, y = [tex]\log_{e}x[/tex]
Now x = log y
Then, y = [tex]e^{x}[/tex]
So, f(x) = [tex]e^{x}[/tex]
As a result, [tex]e^{x}[/tex] is the logarithmic function's inverse, where f(x) = [tex]\log_{e}x[/tex].
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The complete question is:
What is the inverse of the logarithmic function f(x) = [tex]\log_{e}x[/tex]?
Three equivalent ratios are shown on the graph. On a coordinate plane, points (1, 0.5), (2, 1), and (5, 2.5) are plotted. Starting on one of the plotted points, how can you plot more equivalent ratio points? Move up one and right one and one-half. Move up one and one-half and right three. Move up two and right three. Move up one and right two
Answers
To plot more equivalent ratios on the coordinate plane, move up one and right one and half.
What are equivalent ratios?Equivalent ratios are the ratios that are the same when we compare them. Two or more ratios can be compared with each other to check whether they are equivalent or not.
Given that, Three equivalent ratios are shown on the graph. On a coordinate plane, points (1, 0.5), (2, 1), and (5, 2.5) are plotted.
As we see, the x-coordinates are 1, 2, 5 and y-coordinates are 0.5, 1, 2.5
We see that, x-coordinates are increasing by 1, and y-coordinates are increasing by a half,
Therefore, to plot more equivalent coordinates, we will move up 1 on y-axis and a half right on x-axis,
Hence, to plot more equivalent ratios on the coordinate plane, move up one and right one and half.
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Avery is a songwriter who collects royalties on her songs whenever they are played in a commercial or a movie. Avery will earn $40 every time one of her songs is played in a commercial and she will earn $140 every time one of her songs is played in a movie. Avery earned a total of $480 in royalties on 7 commercials and movies. Determine the number of commercials and the number of movies on which Avery's songs were played.
Answers
The number of commercials in which Avery's songs were played is 5.
The number of movies in which Avery's songs were played is 5.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 3 = 9 is an equation.
We have,
The number of times the song played in commercials = x
The number of times the song played in a movie = y
Now,
Avery will earn $40 every time one of her songs is played in a commercial and earn $140 every time one of her songs is played in a movie.
We can make two equations.
x + y = 7 ____(1)
x = 7 - y _____(2)
40x + 140y = 480 _____(3)
Substituting (2) in (3) we get,
40(7 - y) + 140y = 480
280 - 40y + 140y = 480
100y = 480 - 280
100y = 200
y = 2
Now,
x = 7 - 2
x = 5
Thus,'
The number of commercials and the number of movies in which Avery's songs were played are 5 and 2.
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The Stock Market Alexander is a stockbroker. He earns 14% commission each week. Last week, he sold $7,100 worth of stocks. How much did he make last week in commission? If he averages that same amount each week, how much did he make in commission in 2011?
Answers
The amount he earned last week in commission is $994.
The commission he earned in 2011 is $51,688
What is the commission?The commission earned is a fraction of the total sales of stocks.
Commission earned = amount of sales x percentage commission
14% x $7,100
= 14/100 x $7,100
= 0.14 x $7,100
= $994
Amount she earned in commission in a year = number of weeks in a year x commission earned per week
= $994 x 52 = $51,688
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The house Trevor's family lives in has 6 66 people (including Trevor) and 3 33 bathrooms. In the past month, each person showered for an average of 480 480480 minutes and used an average 72 7272 liters of shower water (over the entire month). Water costs 0.20 0.200, point, 20 dollars per liter. How much money did Trevor's family spend, in total, on shower water in the past month? dollars
Answers
The total amount of money which Trevor's family spend, in total, on shower water in the past month is equal to $86.4.
How to calculate the required amount of money?Based on the information provided about the house Trevor's family lives in, we have the following important parameters;
The total number of persons in Trevor's family house is equal to 6The total volume of water which each person showered with during the month is equal to 72 liters of shower water (over the entire month). The cost of water is equal to $0.20 per liter.Next, we would calculate the total volume of water that is used to shower by six (6) persons as follows;
Total volume of water for 6 persons = 72 × 6
Total volume of water for 6 persons = 432 liters.
Furthermore, the total amount of money that was spent on shower water by Trevor's family in the previous month is given by;
Total amount of money = total volume of water used for shower × cost per liter of water
Total amount of money = 432 × 0.2
Total amount of money = $86.4.
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The question is in the photo for you to answer.
Answers
Answer:
Answer in attached photo.
Step-by-step explanation:
SolutionSteps are in the attached photo, this question is testing on the concept of Similar Triangles.
Formula:
[tex]\frac{Shorter \ Length \ of \ line \ segment \ A}{Longer \ Length \ of \ line \ segment \ A} = \frac{Shorter \ Length \ of \ line \ segment \ B}{Longer \ Length \ of \ line \ segment \ B}[/tex]
PLS HELP ASAP!!! (40 POINTS)
Answers
Answer:
the answer is option A
Step-by-step explanation:
Distance between two points
/XY/ = √((X2-X1)²+(Y2-Y1)²)
Therefore
/XY/= √((7-(-5)²+(15-4)²)
Answer:
First a farl we should know,
Distance (d) = √(x2-x1)^2+ (y2-y1)^2
x(-5,4) = (x1, y1)
y(7,15) = (x2, y2)
Now,
Distance (d) = √(x2-x1) + (y2-y1)
Ans = √(7-5)^2 + (15-4)^2
Answred by : - ||Ziddiboy||
Raul crosses Main Street when he walks home from school. The graph of the function d(t)=4|t-0.75) shows Raul's distance, in miles, from Main Street after thours. The domain of the function is 0 <= x <= 1.5 The graph shows his entire trip
Answers
Raul's distance from Main street decreases in the interval,
0 ≤ t ≤ 0.75. And Raul walks 6 miles to get to school.
What is the distance between two points?The length of the line segment bridging two points on a plane is known as the distance between the points.
The formula to find the distance between the two points is usually given by d=√{(x₂-x₁)² + (y₂-y₁)²}.
Given:
Raul crosses Main Street when he walks home from school.
The graph of the function d(t)=4I(t-0.75)I shows Raul's distance, in miles, from Main Street after t hours.
The domain of the function is 0 ≤ x ≤ 1.5.
The graph shows his entire trip.
From the graph;
Raul's distance from Main street decreases in the interval,
0 ≤ t ≤ 0.75.
And to get to school,
Raul walks,
distance = (distance when t = 1.5) - (distance when t = 0)
Distance = (4 x 0.75) - (4 x -0.75)
Distance = 3 -(-3)
Raul walks = 6 miles.
Therefore, Raul walks 6 miles to get to school.
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The complete question is given on the attached image,
Estimate a 15% tip on a dinner bill of $39.62 by first rounding the bill amount to the nearest ten dollars.
Answers
Answer:50.00
Step-by-step explanation:
First you need to find what 15% of 39.62 is 5.94 or 6 so you would add 6 to 39.62 and get 34.62 then you round it all and get 35 and it is closer to 50 than 40.
If the bae of the ail i 12 feet long and the height i 16 feet, what i the value of x?
Answers
The value of X will be 96 [tex]ft^{2}[/tex].
From the question, we can conclude that the shape is Triangle.
What is Triangle?
A triangle is a polygon with three vertices and three sides. The angles of the triangle are formed by the connection of the three sides end to end at a point. The triangle's three angles add up to 180 degrees in total.
Hence we will use the formula of the area of a triangle.
Area of Triangle = bh/2.
In question, it's given that our Base is 12 ft and our Height is 16 ft.
Area = (12*16)/2
Area = 96 [tex]ft^{2}[/tex]
Therefore our value of area i.e. X will be 96 [tex]ft^{2}[/tex].
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What is the product of 2x2x2?.
Answers
The product of 2x2x2 is 8.
A product is the outcome of multiplication in mathematics, or an expression that specifies the factors (numbers or variables) to be multiplied. For instance, the sum of 6 and 5 is 30. (the result of multiplication).
So 2x2x2 = 4x2= 8
Integers, natural numbers, fractions, real numbers, complex numbers, and quaternions are examples of typical special instances where it is possible to define the product of two numbers or the multiplication of two numbers.
In linear algebra, there are numerous different types of products. Some of them have names that sound confusingly close but have very distinct meanings (outside product, external product), while others have names that sound completely different but basically imply the same thing (outer product, tensor product, Kronecker product). These are briefly discussed in the sections that follow.
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Can a graphing calculator be used as a scientific calculator?.
Answers
Yes , the graphing calculator can be used as a scientific calculator.
As given in the question,
Scientific calculator can not be used as a graphing calculator.
But graphing calculator can be used as a scientific calculator.
Calculators help us to make our calculation easy and save time.Scientific calculator help us to do the calculation of mathematics based on algebra and Engineering mathematics.Scientific calculator also help us to do statistics calculation.Graphing calculator have all the functions of scientific calculator with more addition of plotting coordinates of the given graph function.Therefore, yes the graphing calculator can be used in place of scientific calculator.
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Simplify this expression:
13x+2y-10x-7y
Answers
Answer:
3x-5y
Step-by-step explanation:
⇒13x+2y-10x-7y
arrange the like terms together
⇒13x-10x-7y+2y
⇒3x-5y ...answer
hope that helps...
The mass is 500
grams and the
volume is 40 cubic
centimeters
The mass is 125
grams and the
volume is v cubic
centimeters
The volume is 1.4
cubic centimeters
and the density is 80
grams per cubic
centimeter (et m
equal mass in
grams)
The mass is m
grams and the
volume is v cubic
centimeters.
Equation
The density of an object can be found by taking its mass
and dividing by its volume.
Write an equation to represent the relationship between
the three quantities (density, mass, and volume) in each
situation.
Let the density, D, be measured in grams/cubic
centimeters (or g/cm3).
Answers
The density is 12.5 grams per cubic centimeter and 80 grams per cubic centimeter.
What is the density?
Density is a measure of how much mass is contained in a given volume. It is defined as the ratio of mass to volume and is typically measured in units of grams per cubic centimeter (g/cm^3) or kilograms per liter (kg/L).
The mass is 500 grams and the volume is 40 cubic centimeters, therefore the density is:
density = mass / volume = 500 grams / 40 cubic centimeters = 12.5 grams per cubic centimeter
The mass is 125 grams and the volume is v cubic centimeters. To find the value of v, you can use the equation:
density = mass / volume = 125 grams / v cubic centimeters
so v = mass / density = 125 grams / 12.5 grams per cubic centimeter = 10 cubic centimeters
The volume is 1.4 cubic centimeters and the density is 80 grams per cubic centimeter. To find the mass you can use the equation:
mass = density x volume = 80 grams per cubic centimeter x 1.4 cubic centimeters = 112 grams
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If 8% is 1400 what would be 100%
Answers
first find one percent by dividing 1400 by 8 which would give 175 then multiply by 100 to get the full 100%
1400 x 100 = 140,000
140,00/8 = 17,500
What is a 1/10 gradient?.
Answers
The 1/10 gradient means 6 degrees is the angle of 1 in 10 slopes.
The gradient is the inclination of a line. The gradient is often referred to as the slope (m) of the line. The gradient or slope of a line inclined at an angle θ is equal to the tangent of the angle θ.
In geometry, 1 in 10 means for every ten units of horizontal distance crosses there is 1 unit of vertical drop or rise. The angle of tan is used to measure this value of the slope. Let x be the angle to be used for tan.
[tex]tanx=\frac{horixontal distance}{vertical distance}[/tex]
[tex]tanx= \frac{1}{10}=0.1[/tex]
[tex]x=tan^{-1}(0.1)\\x=5.71'[/tex]
By rounding to the nearest digit, the degree value will be 6.
Hence, 6 degrees is the angle of 1 in 10 slopes.
Hence, the 1/10 gradient means 6 degrees is the angle of 1 in 10 slopes.
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Please Help me with this question ASAP
Answers
The credit utilisation ratio to the nearest percentage is found as 17%.
Define the term credit utilisation ratio?The proportion of a borrower's total credit available that is presently being used is known as the credit utilisation ratio. When determining a borrower's credit score, credit reporting companies take into account the credit utilisation ratio.Steps:
You must collect all of the credit cards in order to determine your credit utilisation ratio. Add the credit limits after adding up all the remaining balance. Your credit usage ratio is expressed as a percentage by taking the entire amounts, dividing them but by total credit limit, and thereafter multiplying the result by 100.For the stated question:
Balance = $180 + $230 = $410.
credit limits = $1500 + $1000 = $2500.
Credit utilisation ratio = Balance / credit limits
Credit utilisation ratio = 410 / 2500 * 100 = 16.4%
Thus, the credit utilisation ratio to the nearest percentage is found as 17%.
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Write each calculation as a single power. 8 to the power of 5 Multiply by 8 to the power of 4 REMEMBER TO WRITE THE ANSWER AS A SINGLE POWER PLS HELP
Answers
Answer:
[tex]8^{9}[/tex]
Step-by-step explanation:
[tex]8^{5}[/tex] x [tex]8^{4}[/tex]
In expanded form this would be
8·8·8·8·8·8·8·8·8
The product of power principle tells us that when we are multiplying powers with the same bases, we add the exponents.
A mattress store is having a sale. All mattresses are 30% off. Nate wants to know the sale price of a mattress that is regularly $1,000.
How much is the discount? Enter the amount in the table.
Answers
Answer:
$700
Step-by-step explanation:
1. We see the original price is $1,000.
2. Change 30% to a decimal
3. 30/100=0.30
4. Multiply the original cost of the item(mattress) by the percentage.
5. 0.3×1,000=300
6. $300 is the amount discounted.
7. For final price with discount: Take its original price($1,000) and subtract the discount from the original price
8. $1,000-$300=$700
Answer:
$300
Step-by-step explanation:
Solve for x.
z = 6 π x y
This is to help others and myself who are stuck here!
Reward: Brainiest
Answers
Step-by-step explanation:
Isolate the variable by dividing each side by factors that don't contain the variable.
x² × 7x²- x² × 5x - x² × 5 + 9 × 7x² - 9×5x - 9×5
Answers
You have to distribute it. To do this, multiply x^2 to (7x^2-5x-5) and do the same to 9 times (7x^2-5x-5). Add like variables. The attached image is your answer.
I hope this was able to help you :D
which of the following number lies between 5595 and 5610 a=5509 b=5590 c=5605
Answers
Answer:
The answer is c which is=5605
Answer:
C.
Step-by-step explanation:
Since there's no sequence of numbers, we assume that the number that lies between 5,595 and 5,610 is the mean of the 2 numbers.
However, if we calculate its mean, we can have 5,602.5 and it doesn't appear on any options. Thus, we will choose the nearest value from those options.
PLSSS HELP IF YOU TURLY KNOW THISSSS
Answers
The next operation that should be done when evaluating this expression is -12
Which are the 6 steps of order of operation?The rules that specify the order in which we should perform several operations to solve an expression are known as the order of operations. Parentheses, Exponents, Multiplication, Division (from left to right), Addition, and Subtraction are the sequence in which the operations are performed (from left to right).
The next operation that should be done when evaluating this expression is
9-12+6/-3+3(-3)
Addition or Subtraction (from left to right)
9-12=-5
Multiplication or Division (from left to right)
6 /-3 = -2
-5 + -2+3(-3) = -12
The next operation that should be done when evaluating this expression is -12
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Is an example of distributive law *?.
Answers
Yes, 3 * ( 5 - 2 ) = ( 3 * 5 ) - ( 3 * 2 ) is an example of distributive law.
The distributive property is also known as the distributive law of multiplication over addition and subtraction. The name itself implies that the operation involves dividing or distributing something. The distributive law applies to addition and subtraction. The formula for the distributive property is expressed as:
Over addition : a( b + c ) = ab + ac
and subtraction : a( b - c) = ab - ac
Example: Solve the expression 7(20 + 3)
Multiplication of 7(20) and 7(3) is done before addition. This leads to 7(20) + 7(3) = 140 + 21 = 161.We have, an expression 3×(5 - 2) =(3 × 5 ) - (3× 2 ).
Consider the left hand side, 3×(5 - 2)
=> 3× 5 - 3× 2 = 15 - 6 = 9
Now, the right hand side, (3 × 5 ) - (3× 2 ) => 15 - 6 = 9 = LHS
Hence, it is an example of distributive law.
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Complete question:
Is 3 * ( 5 - 2 ) = ( 3 * 5 ) - ( 3 * 2 ) an example of distributive law *?.
What is 1 more than 99?.
Answers
The Number which is more than 99 is 100.
Number:
Numbers are mathematical objects used for counting, measuring, and labeling. The original example is the natural numbers 1, 2, 3, 4, etc. [1] Numbers can be linguistically represented by numerals. More generally, individual numbers can be represented by symbols called digits. For example, "5" is the number representing the number five. Since only a relatively small number of symbols can be remembered, basic numbers are usually organized into number systems, which are systematic ways of representing each number. The most common number system is the Hindu-Arabic number system, which can represent any number using combinations of 10 basic numeral symbols called digits.
Greater than Number:
Greater than or equal to in mathematics is an inequality used to compare two or more numbers, quantities, or values. Used when one quantity or number is greater than or greater than the second or remaining quantity or number. This indicates that one value is greater than or greater than or greater than the other. The above symbol is ">". This is also called greater than. For example, Bella has a red pencil that is 5 cm long and a blue pencil that is 3 cm long.
According to the Question:
1 more than 99 is:
adding 1 +99 = 100.
Therefore,
1 more than 99 is 100.
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The perimeter of a train ticket is 60 centimeters. It is 17 centimeters long. How tall is it?
Answers
If the perimeter of the train ticket is 60 centimeters and it's length is 17 centimeter long it's height is 13 centimeter
What is perimeter of a rectangle?A perimeter is a closed path that encompasses, surrounds, or outlines either a two dimensional shape or a one-dimensional length.
To find the perimeter of a rectangle we add all this sides together. This means that the perimeter of a rectangle is given as ;
P = l+l+w+w
P= 2(l+w)
60 = 2( 17+w)
60 = 2( 17+w)
17+w= 60/2
17+ w = 30
w = 30-17
w = 13cm
Therefore the height of the train ticket is 13cm
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The measure of an angle is 166.7°. What is the measure of its supplementary angle?
i need help plsss
Answers
An angle has a length of 166.7°. The extra degree at 166.7 is 13.3
How Do I Find Additional Angles?We are aware that two angles are supplementary if their sum is 180 degrees. It is claimed that each angle is a supplement to another angle. In order to obtain an angle's complement, we can subtract an angle from 180 degrees. A typical circumstance is when they are on the same side of a straight line.In geometry, two angles are referred to as supplementary angles if their sum is 180 degrees. For instance, if A + B = 180°, then A and B are considered supplementary angles.Complementary angles always result in a straight angle when combined (180 degrees).Given,
The measure of an angle is 166.7°.
The supplement of 166.7 degrees is 180 - 166.7 = 13.3
Therefore the answer is 13.3°
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please help me i dont know this
Answers
When the coin is tossed and then dice is rolled, the possible outcomes are 12.
Define the term sample space/possible outcome?All potential results make up as sample space of such a random experiment.A subset of such sample space is an event connected to a random experiment.Any outcome's probability is a value between 0 and 1. The sum of all the outcomes' probabilities is one.The total likelihood of all outcomes in an event A is the probability of that event.For the stated question.
Sample space for tossing coin. { H, T}.
Sample space for rolling dice. { 1, 2, 3, 4, 5, 6 }
Then,
Total sample = { H1, H2, H3,H4, H5, H6, T1, T2, T3, T4, T5, T6}
Thus, the total possible outcomes for tossing coin and rolling dice is 12.
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factorise
3x^2+22x+7
Answers
Answer:
(3x + 1)(x + 7)
Step-by-step explanation:
3x² + 22x + 7 =
3x² must factor into 3x and x.
= (3x + )(x + )
7 factors into 7 and 1. We can place 7 and 1, or 1 and 7.
= (3x + 7)(x + 1)
or
= (3x + 1)(x + 7)
Now we multiply both possibilities out to see which one produces the middle term 22x that we need.
= (3x + 7)(x + 1) = 3x² + 10x + 7 No what we need
or
= (3x + 1)(x + 7) = 3x² + 2x + 7 Exactly what we need
Answer: (3x + 1)(x + 7)
