cartesian coordinate system. This system plots points on a graph based on their x-values and y-values. The x-values represent the horizontal axis and the y-values represent the vertical axis, with the origin (0,0) in the middle of the graph.
The points can then be plotted and connected to form lines, shapes, and other geometric figures.
1. A ordered pair of real numbers is a set of two numbers that have been arranged in a specific order.
2. This ordered pair can be represented in a plane called the rectangular coordinate system or the cartesian coordinate system.
3. In this system, points on a graph are plotted based on their x-values and y-values.
4. The x-values represent the horizontal axis and the y-values represent the vertical axis, with the origin (0,0) in the middle of the graph.
5. The points can then be plotted and connected to form lines, shapes, and other geometric figures.
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14. Harold borrowed $9,000 for 5 years at an APR of 3.6%.
a. What is Harold's monthly payment? Round to the nearest cent. (Round your answer to the nearest cent and use the rounded answer for further calculations)
b. What is the total amount that Harold paid in monthly payments for the loan?
c. What is the amount Harold will pay in finance charges?
a. Harold's monthly payment is given as follows: $164.13.
b. The total amount paid is given as follows: $9,847.8.
c. The finance charge is of: $847.8.
What is the monthly payment formula?The monthly payment formula is defined as follows:
[tex]A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}[/tex]
In which the parameters are listed as follows:
P is the initial amount.r is the interest rate.n is the number of payments.The values of these parameters for this problem are given as follows:
P = 9000, r = 0.036, n = 5 \times 12 = 60.
Then:
r/12 = 0.036/12 = 0.003.
Then the monthly payment is calculated as follows:
[tex]A = P\frac{\frac{r}{12}\left(1 + \frac{r}{12}\right)^n}{\left(1 + \frac{r}{12}\right)^n - 1}[/tex]
[tex]A = 9000\frac{(0.003)(1.003)^{60}}{(1.003)^{60} - 1}[/tex]
A = $164.13.
Then the total amount paid is of:
Total = 60 x 164.13 = $9,847.8.
Meaning that the finance charge is given as follows:
9847.8 - 9000 = $847.8.
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given a cubic function, what would be the maximum number changes of direction (turning points)? given a cubic function, what would be the maximum number changes of direction (turning points)? 0 1 3 2
The maximum number changes of direction (turning points) = 3
What is Direction?
The direction of an object's motion or tendency is indicated by its direction.
The main directions are East, South, West, and North.
Concept:
Not every cubic function has a definite turning point. but their are 3 turning point and depends upon the type of the cube
The first derivative of the function becomes zero and the second derivative might either be positive or negative at a turning point of the function.
The function would not have a turning point if the set of real numbers containing the roots of the first derivative of the function included none.
The point would not be a turning point but an inflexion point of the curve if the function has a root in the set of real numbers but its second derivative is zero at that location. Additionally, such a process would not have a turning point.
Think about the equation f(x)=x3. There isn't a turning point in this function. Rather, it has an inflection point at x=3.
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The teacher grades 16 of the 48 quizzes before school.
If the teacher grades 15 of the remaining quizzes after school, how many quizzes still need to be graded?
Responses
8 quizzes
8 quizzes
23 quizzes
23 quizzes
25 quizzes
25 quizzes
40 quizzes
The number of quizzes still need to be graded is 17quizzes.
What is an algebraic equation?There are many different ways to define an equation. In terms of algebra, an equation is a claim that demonstrates the equality of two mathematical expressions.
For instance, the two equations 5x + 4 and 16, which are separated by the 'equal' sign, make up the equation 5x + 4 = 16.
Algebraic equations in mathematics frequently have one or more variables.
It is given that,
grades of the teacher out of 48 quizzes before school = 16
grades of the teacher of the remaining quizzes after school = 15
Let us assume 'X' as the number of quizzes still need to be graded.
then X= 48-16+15
=48-31
=17
Hence, The number of quizzes still need to be graded is 17quizzes.
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The number of quizzes still need to be graded is 17 quizzes.
What is an algebraic equation?There are many different ways to define an equation. In terms of algebra, an equation is a claim that demonstrates the equality of two mathematical expressions.For instance, the two equations 5x + 4 and 16, which are separated by the 'equal' sign, make up the equation 5x + 4 = 16.Algebraic equations in mathematics frequently have one or more variables.It is given that,grades of the teacher out of 48 quizzes before school = 16, grades of the teacher of the remaining quizzes after school = 15.Let us assume 'X' as the number of quizzes still need to be graded.then X= 48-=48-31
=17
Hence, The number of quizzes still need to be graded is 17 quizzes.
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State all integer values of x in the interval [-4, 2] that satisfy the following Inequality:
4x + 5<-6
Integer values of x in the interval [-4, 2] that satisfy the following Inequality: 4x + 5 < -6 are -4 and -3.
What is inequality?In mathematics, inequalities specify the connection between two non-equal numbers. Equal does not imply inequality. Typically, we use the "not equal sign (≠)" to indicate that two values are not equal. But several inequalities are utilized to compare the numbers, whether it is less than or higher than.
A sign of inequality can be used to show that one of the two variables is larger than, more than or equal to, less than, or equal to another value.
Income gap, gender inequality, access to health care, and social class are some of the most prominent instances of social inequality.
Given the inequality:
4x + 5 < -6
Therefore the all values of x which satisfy the given inequality on the interval [-4,2].
So, x= -4 and x= -3
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A line passes through the points (−4, 7) and (5, −8). What is the slope of the line?
Answer:
-5/3
Step-by-step explanation:
m=(y2-y1)/(x2-x1) ==> (x1, y1), (x2, y2) are the coordinates and
m is the slope
(x1, y1), (x2, y2) ==> (x1=-4, y1=7), (x2=5, y2=-8)
m=(-8-7)/(5-(-4)) ==> plug in known values
m=(-15)/(5+4) ==> simplify
m=-15/9
m=-5/3
does anyone know what -3 ≤ x - 5 is? PLEASE HELP ME
Answer:
Step-by-step explanation:
First you add 5 to -3 so that you get 2 is less than or equal to x.
x ≥ 2
Juan received 570 votes in a school election. If he received 216 less than 2/3 of the total number of votes, how
many students voted in the election?
a) 524
b) 531
c) 786
d) 1179
Answer:
d)1179
2/3 * x - 216 = 570
3/2 * (2/3 * x - 216) = 3/2 * 570
x - 324 = 855
x = 855 + 324
x=1179
There are 164 students voted in the election.
What is mean by Subtraction?Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.
Given that;
Juan received 570 votes in a school election.
And, He received 216 less than 2/3 of the total number of votes.
Now,
Let number of students voted in the election = x
So, We can formulate;
⇒ 2/3 of 570 - 216
Solve as;
⇒ 2/3 × 570 - 216
⇒ 2 × 190 - 216
⇒ 380 - 216
⇒ 164
Thus, Number of students voted in the election = 164
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Madelyn and Kaia are competing to see who can sell the most tickets for the Winter Dance. On Monday, Madelyn sold 22 and then sold 30 per day after that.
Kaia sold 53 on Monday and then sold 20 per day after that.
Write an equation to represent the number of tickets that Madelyn sold.
Write an equation to represent the number of tickets that Kaia sold.
Write a system of equations. What is the appropriate method for solving the system?
Solve the system of equations. Explain the meaning of your solution.
The equations found for the number of tickets sold when 22 tickets are sold on Monday and 30 per day after are sold by Madelyn, and 53 tickets are sold on Monday and 20 per day after that are;
Tickets sold by Madelyn is; y = 22 + 30·x
Tickets sold by Kaia is; y = 53 + 20·x
A system of equation obtained from the details in the question can be presented as follows
y = 22 + 30·x...(1)
y = 53 + 20·x...(2)
The appropriate method for solving the system is to equate equivalent values of one of the variable obtained from each equation in the system.
The solution of the system of equation is; x = 3.1, which indicates that it takes about 3.1 days for the number of tickets sold by Madelyn and Kaia to be equivalent.
What is an equation?An equation consists of two expressions that are joined by the 'equals to' (=) sign.
The number of tickets for the Winter Dance Madelyn sold = 22
Number of tickets per day Madelyn sold after that = 30 per day
Number of tickets Kaia sold on Monday = 53
Number of tickets per day Kaia sold after that = 20 per day
Let x represent the number of days since Monday, and let y represent the number of tickets sold
Therefore;
The number of tickets Madelyn sold, y = 22 + 30·x
The number of tickets Kaia sold, y = 53 + 20·x
The system of equations from the specified information is the equation for the number of tickets Madelyn sold and the number of tickets Kaia sold combined, which can be presented as follows;
y = 22 + 30·x...(1)
y = 53 + 20·x...(2)
The method of solving the equations is by plugging in the value of y from equation (1) in equation (2), as follows;
22 + 30·x = 53 + 20·x
30·x - 20·x = 53 - 22 = 31
10·x = 31
x = 31 ÷ 10 = 3.1
The meaning of the solution of the system of equation, x = 3.1, is that the number of days for the number of tickets sold by Madelyn and Kaia to be the same is about 3 days
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5(x+6) - 2x = 3(x+10)
Answer:
All Real Numbers
Step-by-step explanation:
I assume you are solving for x.
The Interval Notation would be: (-∞,∞)
identify the measure of angle EHF:
The measure of angle EHF is 63°
What are corresponding angles?The angles that are in the same position on two parallel lines intersected by a transversal line on the parallel lines.
Corresponding angles are equal.
We have,
m∠EHG is a right angle.
This means,
m∠EHG = 90°
m∠EHF + m∠FHG = 90
m∠EHF + 27 = 90
m∠EHF = 90 - 27
m∠EHF = 63°
Thus,
The value of m∠EHF is 63°.
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the perimeter of a square is 48 centimeters, what is the area in square centimeters
Answer:
144cm²
Step-by-step explanation:
If the square is perfectly even on all sides, the you first need to divide 48 by 4, as a square has 4 sides.
48/4 = 12cm
Then, to find the area, you need to multiply 12 by 12.
12 cm x 12 cm = 144cm²
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8 (a) The formula for the area of a trapezium is A = = h(c + d)
(* Find an expression for c in terms of A, hand d.
The expression that represents c in terms of A, h, and d would be c = (2A/h) - d.
What is the area of the trapezium?
The formula for the area of a trapezium is A = h(c + d)/2, where h is the height of the trapezium, c is the length of one of the bases, and d is the length of the other base.
To find an expression for c in terms of A, h, and d, we can start by rearranging the formula to solve for c:
A = h(c + d)/2
2A = h(c + d)
2A/h = c + d
c + d = 2A/h
Then, we can subtract d from both sides of the equation to solve for c:
c = (2A/h) - d
Hence, the expression that represents c in terms of A, h, and d would be c = (2A/h) - d.
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The expression that represents c in terms of A, h, and d would be c = (2A/h) - d.
What is the area of the trapezium?
The formula for the area of a trapezium is A = h(c + d)/2, where h is the height of the trapezium, c is the length of one of the bases, and d is the length of the other base.
To find an expression for c in terms of A, h, and d, we can start by rearranging the formula to solve for c:
A = h(c + d)/2
2A = h(c + d)
2A/h = c + d
c + d = 2A/h
Then, we can subtract d from both sides of the equation to solve for c:
c = (2A/h) - d
Hence, the expression that represents c in terms of A, h, and d would be c = (2A/h) - d.
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alyssa has $75 less than three times eric together they have $905 how much money do they each have
Alyssa has the money of worth $660
Eric has the money of worth $245
What is an equation?
An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used. In the equation 3x + 5 = 14, for instance, the two expressions 3x + 5 and 14 are separated.
Let x be the amount Alyssa has.
Let y be the amount Eric has.
alyssa has $75 less than three times eric
=> x= 3y - 75
Together they have $905
=> x + y =905
Substitute x
=> 3y - 75 +y = 905
4y = 905 +75 = 980
y = 980 /4 = 245
x= 3y - 75 = 3(245) - 75 = 660
Alyssa has $660
Eric has $245
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The
graph below shows the solution to which system of inequalities?
The graph in the problem shows the system of inequalities written below
y ≥ 2
y < x
How to know the equations that suits the inequality graphsThere are some points that help in interpreting inequality graphs.
Firstly, arranging the equation such that y is the subject of the formula
Secondly look out for line type: dashed lines or solid lines
dashed lines means there is no equality sign in the inequality > OR <solid line means there is equality in the inequality ≤ OR ≥
Thirdly is the shaded portion
shading above the line defines greater than shading below the line defines less than
Equipped with this information, on of the line is dashed line and the other is solid line,
the solid line is a horizontal line and shaded above the line which is
y ≥ 2
the dashed line is shaded below the line will hence be a less than
y < x
This makes the first option the best choice
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Which of the following best describes the second law passed under the Morrill Act?
Eastern schools had to research which crops were suitable for farms in Midwestern America.
Answer:
Step-by-step explanation:
Sammy is solving the equation below. Which step should Sammy complete first?
x/2+8=-24
Answer: x= -64
Step-by-step explanation: simplifying both sides of the equation
Jack's house is located at the point (-2, 3) and Jill's house is located at the point (4, -5). They plan to meet up at the hill located halfway between there two houses what is the coordinate location of the Hill
The coordinate location of the hill halfway between them is (1, -1).
How to find the distance between two points?Jack's house is located at the point (-2, 3) and Jill's house is located at the point (4, -5). They plan to meet up at the hill located halfway between there two houses.
The coordinate location of the hill can be calculated as follows:
using mid point formula,
(x, y) = (x₁ + x₂ / 2, y₁ + y₂ / 2)
using the end points (-2, 3) and (4, -5)
(x, y) = (-2 + 4 / 2, 3 - 5 / 2)
(x, y) = (2 / 2. -2 / 2)
(x, y) = (1, -1)
Therefore, the coordinate location of the hill is (1, -1).
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22fl oz/ minutes ≈ mL/s
After the conversion of 22 fl oz/minutes to mL/s, we get 10.41 mL/s
What is fluid ounce(fl oz)?
The fluid ounce is different from the (international avoirdupois) ounce as a unit of weight or mass, even though it is occasionally referred to as simply "one ounce" when the context clearly indicates what is meant. There is almost exactly one ounce of pure water in one imperial fluid ounce of volume.
A fluid ounce, often known as a capacity or fl oz, is a volume measurement unit that is frequently used to measure liquids.
An imperial fluid ounce is exactly 28.4130625 milliliters (1/20 of an imperial pint, 1/16 of an imperial gallon).
As, 1 fl oz = 28.41 mL
∴ 22 fl oz = (28.41×22) mL
⇒ 22 fl oz = 625.02 mL
Since, 1 minute = 60 s
∴ 22 fl oz/minutes = (625.02/60) mL/s
⇒ 22 fl oz/minutes = 10.41 mL/s
After the conversion of 22 fl oz/minutes to mL/s, we get 10.41 mL/s
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you work for an application specific integrated circuit foundry. you're checking the wafer thickness. ideal wafer thickness is 246um, with a standard deviation of 3.60. a sample of 44 wafers shows a sample average of 245.05 um. how many standard deviations from the mean that the mean is the sample average for a hypothesis test to determine if the wafer thickness is within specification. express your answer accurate to two decimal places.
The sample mean is -0.0417 standard deviations from the population mean.
What is standard deviation?Standard deviation is a measure of the dispersion or spread of a set of data.
What is mean?The mean, also known as the arithmetic mean or average, is a measure of the central tendency of a dataset.
(sample mean - population mean) / standard deviation
Plugging in the values from the problem, we get:
(245.05 - 246) / 3.60 = -0.15 / 3.60 = -0.0417
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Someone please help me finde out what’s (2y+3)(x+3)
Answer:
2xy + 3x + 6y + 9
Step-by-step explanation:
2y times x = 2xy
3 times x = 3x
2y times 3 = 6y
3 times 3 = 9
Can you please explain the answer to this question? Thanks!
Answer:
119
Step-by-step explanation:
[tex]\fbox{3}=3^3=27\\\fbox{2}=2^3=8\\27\circ8=5(27)-2(8)=119[/tex]
The value of the given expression is 119
What is an expression?An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division.
Given is an expression, (A) = A³ and A₀B = 5A-2B, We are asked to find
(2)₀(3)
Solving we get,
(3) = 3³ = 27
(2) = 2³ = 8
27₀8 = 5(27)-2(8)
= 119
Hence, the value of the given expression is 119
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Find the amount with the same value as:
70 x 7-2
A
0
B
14
C
149
D
17
The value of the numerical expression 70 / (7 - 2) will be 14. Then the correct option is B.
What is Algebra?Algebra is the study of algebraic expressions, while logic is the manipulation of those concepts.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to answer the problem correctly and precisely.
The numerical expression is given below.
⇒ 70 / (7 - 2)
Simplify the expression, then we have
⇒ 70 / (7 - 2)
⇒ 70 / 5
⇒ 14
The worth of the mathematical articulation 70/(7 - 2) will be 14. Then the right choice is B.
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The correct expression is given below.
70 / (7 - 2)
1. The equation, 687.5 = 550(1 + 0.05t), represents the amount of money earned on a simple interest savings account. What does the value 550 represent?
The value 550 represents the initial balance in the account, which means the account started with $550.
The value 550 represents the final balance in the account, which means the account balance ended with $550.
The value 550 represents the final balance in the account, which means the account balance started with $550.
The value 550 represents the amount of interest earned, which means $550 was added to the initial balance.
2. A savings account is opened with an initial deposit of $425.00. Determine the account balance after 9 years if the account earns 2.7% simple interest annually.
$3,928.28
$1,457.75
$528.28
$103.28
3. An arithmetic sequence begins with 56, 59, 62, 65, 68, …
Which option below represents the formula for the sequence?
f(n) = 56 + 3(n − 1)
f(n) = 53 + 3(n − 1)
f(n) = 56 + 3(n)
f(n) = 53 + 3(n + 1)
4. The equation, 816 = 600(1 + 9r), represents the amount of money earned on a simple interest savings account. Solve for r.
r = 0.04
r = 0.14
r = 0.26
r = 0.40
1. In the simple interest equation, 687.5 = 550(1 + 0.05t), A. The value 550 represents the initial balance in the account, which means the account started with $550.
2. The account balance of a savings account opened with an initial deposit of $425.00, after 9 years if the account earns 2.7% simple interest annually, is C. $528.28.
3. The formula for the arithmetic sequence which begins with 56, 59, 62, 65, 68, … is C. f(n) = 56 + 3(n).
4. The equation, 816 = 600(1 + 9r), represents the amount of money earned on a simple interest savings account, where r is A. r = 0.04.
What is the simple interest system?The simple interest system operates without compounding the interest.
Compounding implies that interest attracts interest.
1) 687.5 = 550(1 + 0.05t)
Principal = $550
Final amount after t years = $687.50
Simple interest rate = 0.05 or 5%
Time, t = [$687.5/$550 - 1]/0.05
= 5 years
2) Principal = $425.00
Time = 9 years
Simple interest rate = 2.7%
Amount after 9 years = $528.28 ($425 x 1 + (9 x 2.7%)
3) Arithmetic Sequence:f(n) = 56 + 3(n)
Where n = 1:
f(n) = 56 + 3(1)
= 56 + 3
= 59
Where n = 2:
f(n) = 56 + 3(2)
= 56 + 6
= 62
4) Principal = $600
Amount after 9 years = $816
Simple interest rate = r
r = ($816/$600 - 1)/9
= 0.04
= 4%
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Answer:
Answer below
Step-by-step explanation:
1. The value 550 represents the initial balance in the account, which means the account started with $550.
2. (C) 528.28
425.00 x 2.7% x 9 = 103.275
Then we add 103.275 to the initial deposit of $425.00
425.00 + 103.275 = 528.275
Therefore the answer is (C) 528.28
3. The answer for this one is (A) f(n) = 56 + 3(n − 1)
So, as we can see the first value is 56 and the common difference is 3 and the rule for the nth term is [tex]a_{n} =a_{1} +d(n-1)[/tex] .
Therefore, its 56 + 3(n − 1)
4. For this one we solve for r and using a calculator its (A) r = 0.04
5. Oh also he doesn't have this one but its (C) 102
An auditorium has 30 seats in the first row, 38 seats in the second row, 46 seats in the third row, and so on. How many seats are in the 10th row?
60
93
102
110
As we can see the common difference is 8.
Then we use the rule for nth term which is [tex]a_{n} =a_{1} +d(n-1)[/tex]
[tex]a_{n} =30+8(n-1)[/tex]
[tex]a_{n} =30+8n-8[/tex]
[tex]a_{n} =22+8(10)[/tex]
[tex]a_{n} =22+80[/tex]
[tex]a_{n} = 102[/tex]
So therefore, the answer is (C) 102.
The graph shows the parent function f(x)=0.75^x
the answer; the graph on the top right
+ 1 -- translates the graph upward changing the y intercept from (0,1) to (0,2)
to find the point at 1, just plug in 1 for x
The length of a side of a cube is 4x units. In cubic units, what is the volume of the cube?
Answer:
volume of cube= l^ 3
=(4x)^3
=64x^3 cubic units
Help please asap!!!!
Answer:
y = 1/3x + 8/3
Step-by-step explanation:
The slope of a line that is perpendicular to the line y = -1/3x + 7 is the negative reciprocal of the slope of the given line, which is -3. So, the slope of the perpendicular line is 1/3.
The point where the perpendicular line intersects the given line is also the point where the two lines intersect, which is (4,2) in this case. So, we can use this point to find the equation of the perpendicular line using the point-slope form of a line:
y - y1 = m(x - x1)
where m is the slope of the line and (x1,y1) is a point on the line.
In our case, the equation of the perpendicular line is:
y - 2 = 1/3(x - 4)
We can simplify this equation to obtain:
y = 1/3x + 8/3
Therefore, the equation of the perpendicular line is y = 1/3x + 8/3.
On a team 3 girls and 2 boys scored a total of 29 points. The difference between the number of points scored by the 3 girls and the number of points scored by the 2 boys is 13. Each girl scored the same number of points and each boy scored the same number of points. Find the number of points scored by each girl and each boy
HELP ONLY RIGHT ANSWERS GET THE POINTS
Answer: 4 points per boy and 7 points per girl
Step-by-step explanation: first we have to find out how many points total the girls scored and how many the boys scored. Since the girls scored 13 more points, we can do 29-13=16. then divide that by two because there are the girls and the boys. 16/2=8. the boys scored 8 points total. but we have to add the 13 and 8 for the girls. 13+8=21 then divide each by the number of girls and boys. so, the boys it would be 8 total points the boys scored/2 boys who scored=4. each boy scored 4 points. now the girls. 21 points scored by the girls/the 3 girls who scored=7 points per girl. so, each boy scored 4 points and each girl scored 7 points.
Someone please help me with this!! I’ll give u a brainless or whatever it’s called!
Answer:
New price = 0.06 x Original price
New price $1,968
imagine that we are interested in 1 bed and 1 bath condos in the pacific heights neighborhood of san francisco. let's say that the empirical distribution of the mean square footage generated via bootstrapping is roughly normal with a mean of 883 sqft and a standard deviation of 270 sqft. what range of square footage values would contain 95% of the data?
The range of the square footage values for the given mean , standard deviation and 95% confidence interval is equal to (1257.26 , 508.74).
As given in the question,
Sample size 'n' = 2
Sample mean '[tex]\bar{x}[/tex]' = 883 sq ft
Standard deviation 'σ' = 270 sq ft
95% confidence interval.
95% confidence interval = 1 - 0.95
= 0.05
Critical value for 95% is [tex]Z_{0.05}[/tex] = 1.96
Population mean for the given confidence interval is given by :
= [tex]\bar{x}[/tex] ± [tex]Z_{0.05}[/tex] (σ / √n)
= 883 ± 1.96 ( 270 / √2)
= 883 ± 374.26
= ( 1257.26 , 508.74 )
Therefore , the range of the square footage values for the 95% confidence interval is equal to ( 1257.26 , 508.74 ).
Learn more about confidence interval here
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It costs $270 for 3 people to go on a fishing trip. How many people can go for $1,080?
Answer:12
Step-by-step explanation:
270/3=90, this is the amount it costs for 1 person to go
1080/90=12
12 people can go for $1080