Answer:
so (-5.2,-2) and (4.2,-2) are 9.4 units apart away from each other
Step-by-step explanation:
so (4.2,-2) and (-5.2,-2) add together and get 9.4
Determine if the following ratios form a proportion
a) 45 g to 60 g and 36 kg to 48 kg
b) 450 m to 3 km and 75 cm to 7 m
Answer:
a was ture
b was wrong
Step-by-step explanation:
a)
[tex]\frac{45}{60} =\frac{3}{4}[/tex]
[tex]\frac{36}{48} =\frac{3}{4}[/tex]
b)
[tex]\frac{450m}{3km} =\frac{450}{3000} =\frac{3}{20} \\[/tex]
[tex]\frac{75cm}{7m}=\frac{75}{700} =\frac{15}{140}[/tex][tex]=\frac{1}{7}[/tex]
Answer:
1. 45:60 = 36:48
(45:60)/15 = (36:48)/12 (divide by their GCF)
3:4 = 3:4
PROPORTION2. 4500:3 = 75:700
(4500:3)/3 = (75:700)/25
1500:1 = 3:28
NOT PROPORTIONStep-by-step explanation:
heart and star pls <3 brainliest will be appreciated <3(っ◔◡◔)っ -{ elyna s }-Evaluate the algebraic expression for
the given values of x=
3 and y = 4.
7x - 2y - 1 = ?
Will give brainlest answer!!
Answer: 12
Step-by-step explanation:
7(3)-2(4)-1=12
What is the correct solution for the system
{
x-3y = -12
5x - 3y = -48
Answer:
x = -9; y = 1
Step-by-step explanation:
x - 3y = -12
- 5x - 3y = -48
-------------------------
-4x = 36
x = -9
-9 - 3y = -12
-3y = -3
y = 1
1) How much interest will you pay on a $43,000 car loan with a fixed APR of 4.9% if the loan is
for 5 years?
You pay the interest of 350 dollar on a $43,000 car loan with a fixed APR of 4.9% if the loan is for 5 years
What is APR?The term annual percentage rate of charge, sometimes referred to as a nominal APR and sometimes referred to as an effective APR, refers to the interest rate for the entire year, rather than just a monthly fee/rate, as applied to a loan, mortgage loan, credit card, and so on. It is a finance charge calculated on an annual basis.
We are given that it took out a car loan for $43,000 car loan with a fixed APR of 4.9% if the loan is for 5 years
We know that r = 4.9/12/100 = 0.0049
p = 43,000
Putting the values in formula we get;
= (43,000x 0.0049 x 2.767)/1.767
= $350
Therefore, the interest will be 350 dollar.
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given that is a matrix with eigen pairs , and . find the matrix where . let , then , , ; , , ; , , .
a matrix is a collection of integers that have been put in rows and columns to make a rectangular array. The entries of the matrix are the integers, which are referred to as its elements.
What is matrix?Linear algebra is a subfield of mathematics that mostly uses matrices. When you start solving linear equation systems, linear algebra first starts to seem good. You may concentrate on the figures and greatly simplify the procedure by condensing all the information into a single large chart and leaving out the rest.
Which 4 types of matrices are there?Almost as their name implies, square, symmetric, triangular, and diagonal matrices. All-zero identity matrices except along the major diagonal, where the values are
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At a video game store an animal game costs $45.00. If the sales tax is 5%, what is the total amount Blake will pay for the game?
Answer:
$47.25
Step-by-step explanation:
First we find how much the tax will be
45x0.05
2.25
and now we add to find the total
45+2.25
47.25
hopes this helps
Question The general form of a hyperbola is 6x2−5y2+12x+50y−149=0.
Answer:the general form of a hyperbola is 6x^2-5y^2+12x+50y-149=0 the answer is (x+1)^2/5 -((y-5)^2/6=1
Step-by-step explanation:
Using the following stem & leaf plot, find the five number summary for the data. View in full window so that you have 6 rows of data.
The five number summary of the data set that is represented in the stem and leaf plot is:
Min: 10.
Q1: 24.
Med: 47
Q3: 56.
Max: 68.
How to Find the Five Number Summary from a Stem and Leaf Plot?To find the five number summary, we need to write out each of the data points given in the stem and leaf plot from the least to the greatest.
Thus, the data set are:
10, 12, 23, 24, 24, 25, 29, 42, 42, 47, 49, 50, 54, 55, 56, 58, 59, 60, 68
Find the middle (median) of the data:
47 is the center of the data set, therefore it is the median of the data.
The minimum value is the least data point, which is 10.
The lower quartile is the center of the first part of the data that is divided by the median, which is 24.
The upper quartile is the center of the second part of the data that is divided by the median, which is 56.
The maximum data value is the largest data point which is, 68.
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if the simple interest on 3,000 for 10 years is 1,500 then what is the interest rate?
Answer:
5%
Step-by-step explanation:
Interest = deposit * annual rate * years
1500 = 3000 * rate * 10 yrs
1500/(3000*10) = rate in decimal form = .05 = 5 %
The ratings for the ten leading passers in the league for 2009 regular season play are ranked in the table. Construct a box plot for the rating points data. Rank : 1, 2, 3, 4, 5, 6, 7, 8, 9. 10
NFL Passer : A, B, C, D, E, F, G, H, I, J
Rating Points : 93.5, 96.3, 97.9, 98.9, 99.3, 101.1, 103.9, 104.8, 105.1, 109.5 Choose the correct graph below ? A. Q1 -98.9, Q2-1011 Q3-105.1 B. Q1-96.3, Q2-98.9 Q3-101.1 C. Q1 -97.9, Q2-100.2, Q3-104.8
The minimum value, the first quartile (Q1), the median, the third quartile (Q3), and the maximum value must all be calculated before we can create a box plot for the rating points data.
The median of the lower and upper halves of the data must be determined in order to determine the first and third quartiles, respectively. The numbers from the minimum to the median make up the lower half of the data, while the values from the median to the highest make up the upper half.
We must first organize the numbers in numerical order: 93.5, 96.3, 97.9, 98.9, 99.3, 101.1, 103.9, 104.8, 105.1, 109.5. This will help us determine the median of the lower half of the data. The lower half's mean, which is (99.3 + 101.1) / 2 = 100.2, is then the average of the fifth and sixth values.
Again, the numbers must be arranged in numerical order to determine the median of the upper half of the data: 93.5, 96.3, 97.9, 98.9, 99.3, 101.1, 103.9, 104.8, 105.1, and 109.5. The average of the sixth and seventh numbers, or (101.1 + 103.9) / 2, equals 102.5, which is the median of the top half.
Following that, Q1 = 100 indicates the first and third quartiles.
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what is the volume of a hemisphere with a radius of 6.4 ft, rounded to the nearest tenth of a cubic foot
Answer:
1,150 cubic feet.
Step-by-step explanation:
The volume of a hemisphere with a radius of 6.4 feet can be calculated using the formula 4/3 * pi * r^3, where r is the radius of the hemisphere. Plugging in the values, we get 4/3 * pi * 6.4^3 = approximately 1,153 cubic feet. Rounded to the nearest tenth, the volume of the hemisphere is 1,150 cubic feet.
-5 x -9 ddddddddddddd
Answer:
45
Step-by-step explanation:
two negative numbers multiplied equals a positive number
Zenith Investment Company is considering the purchase of an office property. It has done an extensive market analysis and has estimated that based on current market supply or demand relationships, rents, and its estimate of operating expenses, annual NOI will be as follows:
Year NOI
1 $ 1,210,000
2 1,210,000
3 1,210,000
4 1,270,000
5 1,320,000
6 1,370,000
7 1,409,000
8 1,449,170
A market that is currently oversupplied is expected to result in cash flows remaining flat for the next three years at $1,210,000. During years 4, 5, and 6, market rents are expected to be higher. It is further expected that beginning in year 7 and every year thereafter, NOI will tend to reflect a stable, balanced market and should grow at 3 percent per year indefinitely. Zenith believes that investors should earn a 12 percent return (r) on an investment of this kind.
Required:
a. Assuming that the investment is expected to produce NOI in years 1 to 8 and is expected to be owned for seven years and then sold, what would be the value for this property today? (Hint: Begin by estimating the reversion value at the end of year 7. Recall that the expected IRP = 12% and the growth rate (g) in year 8 and beyond is estimated to remain level at 3%.)
b. What would the terminal capitalization rate (RT) be at the end of year 7?
c. What would the going-in capitalization rate (R) be based on year 1 NOI?
The value of the property at the end of year 7 is 15,324,111$. for a detailed answer read below.
What is NOI?The net operating income (NOI) formula determines a company's revenue after operating costs have been subtracted, but before interest and taxes have been subtracted.
The net operating income of the property is given for years 1 to 8 in the question. Z Corporation wants to own the property for seven years and then sell the property in the 8th year. The growth rate in NOI is 3%, and the expected return on property is 12%.
The value of the property today is the present value of all the cash flow that the property can earn in the future. The terminal value of the property is the reversion value at the end of the eighth year. Compute the terminal value as follows. The value of the property at end of year 7 is $15,324,111. The current value of the property is the present value of all the cash inflow in terms of net operating income and the terminal value. In order to compute the present value of all future cash flows using the “NPV” function of the spreadsheet.The discount rate utilized to account for the property's growth rate while calculating the terminal capitalization rate is the perpetual cash flow from the asset. It is the gap between the growth rate in NOI (Net Operating Income) over an endless period of time and the IRR (the needed rate of return of the investor). The percentage return an investor will get on the property's worth is known as the "going-in" capitalization rate. It is calculated by dividing the property's first year's NOI by the property's current value.When comparing properties, the "going-in" capitalization rate is deceptive and useless. This is due to the fact that it disregards the property's overall NOI throughout all years. The first year's net operating income is divided by the property's current market value to get the going-in cap rate based on first-year NOI. The going-in cap rate = first-year NOI / Current value of the property.The "going-in" capitalization rate should be calculated as follows: So, using first-year NOI as the basis, the cap rate is. 8.29%
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Lines that intersect at 90º are skew lines.
False
True
Answer:
False
Step-by-step explanation:
Lines that intersect at 90 degrees are called perpendicular lines.
Skew lines do not intercept.
Lime Scooter Rentals in San Diego charges $2 to start and
$0.10 per minute after. The price to rent a scooter for m
minutes from Spin Scooter Rentals is shown in the graph to
the right. For which time(s) are the prices the same at both
rental companies?
The time for which the cost is the same for both companies is given as follows:
10 minutes.
How to define the cost functions?As the cost per unit of time is constant for each company, the cost functions are linear functions.
The slope-intercept definition of a linear function is given as follows:
y = mx + b.
The coefficients and their meaning are given as follows:
m is the slope, representing the cost per minute.b is the intercept, representing the initial cost.Then the cost functions are given as follows:
Lime Scooter Rentals: y = 2 + 0.1x.Spin Scooter Rentals: y = 1 + 0.2x. (from the graph, in 10 minutes, the cost increased by $2, then the slope is of 0.2).Then the costs will be the same when:
1 + 0.2x = 2 + 0.1x
0.1x = 1
x = 1/0.1
x = 10 minutes.
Missing InformationThe graph for the cost for Spin Scooter Rentals is given by the image shown at the end of the answer.
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What is the smallest positive integer n, such that there exist positive integers a and b, with b obtained from a by a rearrangement of its digits, so that a–b=11…1 (The number of '1's equal to n)?
The smallest n is n=9.
What is an integer, and what are some examples of them?
A full number (not a fraction) that can be positive, negative, or zero is called an integer (pronounced IN-tuh-jer).
-5, 1, 5, 8, 97, and 3, 043 are some examples of integers.
-1.43, 1 3/4, 3.14,.09, and 5,643.1 are a few examples of numbers that are not integers.
Formally, the set of integers, designated Z, is defined as follows:
Z = {..., -3, -2, -1, 0, 1, 2, 3, ...}
Since b=DigitsRearranged(a)
→ a and b have the same remainder when divided by 9
→ a−b is divisible by 9
→ n≥9
And this is sufficient because there is a solution for this n:
a=812,345,709b=701,234,598a−b=111,111,111
So the smallest n is n=9.
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I need help with my math homework
a) Alex, an eighth grader, and Eric, a seventh grader, need to determine who came
closer to their grade’s state record for the triple jump. Alex jumped 38 feet 11 2/3
inches and Eric jumped 36.89 feet. Who was closer to the state record if the eighthgrade record is 40.17 feet, and the seventh-grade record is 38 feet 1 3/5 inches? (2
points)
The person that was closest to the state record after the jump is; Alex
How to solve Algebra word problems?We are told that Alex jumped 38 feet 11²/₃ inches or 38.9725 ft and that the eighth-grade record is 40.17 feet.
Let see how closer Alex jumped was;
40.17 feet - 38.9725 ft = 1.2425 ft
We are told that Eric jumped 36.89 feet and the state record of the eighthgrade record is 40.17 feet. Thus;
Let see how closer Eric jumped was;
40.17 feet - 36.89 ft = 3.28 ft
We conclude that 1.2425 ft is less than 3.28 ft and as such Alex was closer.
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Which inequality is true when z = 9
When x = 9, the inequality - 4 + x ≤ 9 has the necessary value.
What is meant by inequality?In mathematics, an inequality displays the connection between two values in an unbalanced algebraic statement. One of the two variables on the two sides of the inequality may be greater than, greater than or equal to, less than, or less than or equal to another value, according to inequality signals.
Mathematics that contains at least two terms with variables or integers that are not equal is referred to as being unequal.
Inequality, two integers or algebraic expressions with a declared order link (greater than, greater than, or equal to, less than, or less than or equal to).
As per option (B),
When substituting the values the equation -4 + 9 is less than or equal to 5.
-4 + 9 is 5 so this equation is true
The required value of inequality - 4 + x ≤ 9 is true when x = 9,
Therefore, the correct answer is option (B) -4 + x ≤ 5.
The complete question is:
Which inequality is true when x = 9?
A) 4 - x ≥ 5
B) -4 + x ≤ 5
C) 4 + x ≤ 5
D) -4 - x ≥ 5
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the segment joining midpoints of two sides of a triangle is parallel to the third side and half the length is
The segment joining the midpoints of two sides of a triangle is parallel to the third side and half as long as the third side.
According to Midpoint theorem, if the midpoints of two sides of a triangle are joined by the segment, then resultant segment is parallel to the third side of the triangle and is half of the length of the third side. Consider the triangle ABC, as shown in the figure. Let the midpoints of the sides AC and AB be given as E and D. Then the line DE is said to be parallel to the side BC, whereas the side DE is half of the side BC i.e., DE || BC and DE = (1/2 BC).
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the number of ways to pick a digit, a lowercase letter, an uppercase letter, or one of eight allowable punctuation marks
The number of ways to pick a digit, a lowercase letter, an uppercase letter, or one of eight allowable punctuation marks is 70.
The total number of digits (0-9) = 10.
Thus, the number of ways to pick a digit = 10.
The total number of lowercase letters (a - z) = 26
Thus, the number of ways to pick a lowercase letter = 26.
The total number of uppercase letters (A - Z) = 26
Thus, the number of ways to pick an uppercase letter = 26.
The total number of allowable punctuation marks = 8
Thus, the number of ways to pick a punctuation = 8.
Hence, the total number of ways to pick a digit, a lowercase letter, an uppercase letter, or one of eight allowable punctuation marks is -
10 + 26 + 26 + 8 = 70.
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Carlos is going to the amusement park, where he has to pay a set price of admission and another price for tickets to go on each of the rides. The total amount of money
Carlos will spend is given by the equation y = 2x + 24, where y represents the total
amount of money, in dollars and cents, and a represents the number of rides Carlos goes on. What could the number 24 represent in the equation?
A) The total amount of money Carlos will spend if he goes on o rides.
B) The total amount of money Carlos will spend if he goes on 1 ride.
C) The change in the total amount of money he will spend for every additional ride he goes on.
D) The total amount of money Carlos will spend if he goes on 100 rides.
24 is represents the entry fee in the amusement park.
A. The total amount of money Carlos will spend $24 if he goes on o rides.
B. The total amount of money Carlos will spend $26 if he goes on 1 ride
C. The change in the total amount of money he will spend $2 for every additional ride he goes on.
D. The total amount of money Carlos will spend $224 if he goes on 100 rides.
What is a variable?
Any qualities, quantity, or number that can be gauged or tallied qualifies as a variable. A data item is another name for a variable. Examples of variables include age, sex, company income and expenses, country of birth, capital expenditures, class grades, eye color, and vehicle kind.
Given equation is y = 2x + 24
24 is represents the entry fee in the amusement park.
where y represents the total amount of money, in dollars and cents, and a represents the number of rides Carlos goes on.
Putting x = 0 in the equation to find the total amount of money Carlos will spend if he goes on o rides:
y = (2 × 0) + 24
y = 24
Putting x = 1 in the equation to find the total amount of money Carlos will spend if he goes on 1 rides:
y = (2 × 1) + 24
y = 2 + 24
y = 26
The change in the total amount of money he will spend for every additional ride he goes on is $26 - 24 = $2
Putting x = 100 in the equation to find the total amount of money Carlos will spend if he goes on 100 rides:
y = (2 × 100) + 24
y = 200 + 24
y = 224
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Choose all that apply when describing R^2. (Select all that apply.) Is used to determine the fit of a model. Can be inflated by adding more variables. Only describes the relationship between quantitative variables. Represents the percent of variability in y that can be explained by the model. Is only used in multiple linear regression. In simple linear regression, it is equal to the correlation coefficient r^2. Referred to as the coefficient of determination or coefficient of multiple determination. Can be inflated by removing variables.
The following statements are correct,
a.) Is used to determine the fit of a model.
b.) Can be inflated by adding more variables.
c.) Referred to as the coefficient of determination
d.) Represents the percent of variability in y that can be explained by the model.
e.) In simple linear regression, it is equal to the correlation coefficient r².
Define Regression Analysis
Regression analysis is a set of statistical processes for estimating the relationships between a dependent variable and one or more independent variables.
R² ≡ 1 - SS(res) / SS(tot)
SS(res) + SS(reg) = SS(tot)
R² = SS(reg) / SS(tot) = (SS(reg)/n) / ( SS(tot)/n )
Where,
The total sum of squares(proportional to the variance of the data),SS(tot) = ∑ (y - y(bar) )₂
The regression sum of squares, also called the explained sum of squares,SS(reg) = ∑ (f(i) - y(bar) )²
The sum of squares of residuals, also called the residual sum of squares,SS(res) = ∑ (y(i) - f(i) )² = ∑e²(i)
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Can someone help me answer this
The two relations that are also functions are:
S = { (-1, 0), (3, 2), (5, 4), (8, 9), (15, 12)}R = {(0, -1), (2, 1), (5, 4), (7, 9), (14, 12)}Which of the following relations represent functions?A relation is a function if and only if each point in the domain is mapped into a single value of the range.
So for example, the following relation:
{ (a, b), (a, c), (d, f)}
The input a is mapped into two different outputs, thus, this is not a function.
Then from the given options the ones that can be functions are:
S = { (-1, 0), (3, 2), (5, 4), (8, 9), (15, 12)}
R = {(0, -1), (2, 1), (5, 4), (7, 9), (14, 12)}
In all the other relations we can see inputs mapped into more than one output.
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the monthly salaries (in thousands of dollars) for a sample of 7 employees of a firm are: 9, 7, 8, 7, 10, 11 and 11. which of the following statements is true about the mean, median and mode?
For the given monthly salaries of the 7 employees of the firm , then the true statement is : (a) mean = median .
In statistics the Mean is defined as sum of a collection of numbers divided by count of numbers .
the given monthly salaries is 9, 7, 8, 7, 10, 11 and 11.
arranging the data in ascending order ,
we get ; 7 , 7 , 8 , 9 , 10 , 11 , 11 .
the sum of the salaries is = 63 ;
So , the mean is = 63/7 = 9 .
median is the middle term of the given data that is = 9 ;
the mode is the most times occurred frequency that is 7 and 11 .
On comparing the mean , mode and median ,
we get ; mean = median .
Therefore , the correct statement is (a) mean = median .
The given question is incomplete , the complete question is
The monthly salaries (in thousands of dollars) for a sample of 7 employees of a firm are: 9, 7, 8, 7, 10, 11 and 11.
Which of the following statements is true about the mean, median and mode ?
(a) mean = median
(b) mode < median < mean
(c) mode < mean < median
(d) mode = median = mode .
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give an example of a continuous function and closed interval that do not satisfy the conclusion of the mean value theorem
A continuous function is the one in which the function is continuous is the interval given for the function.
A continuous function that does not satisfy the conclusion of the mean value theorem on a closed interval is the function f(x) = |x| on the interval [-1, 1].
This function is continuous on the interval [-1, 1], but it does not have a derivative at x = 0. Therefore, the mean value theorem does not apply at this point, and there is no value c in the interval [-1, 1] such that f'(c) = (f(1) - f(-1))/(1 - (-1)).
This is an example of a function that is continuous on a closed interval, but does not satisfy the conclusion of the mean value theorem.
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A window comprises a square with sides of length z and a semicircle with diameter x as shown in the figure. If the total area of the window is 463 square inches, estimate the value of x to the nearest hundredth of an inch.
The value of x nearest hundredth of an inch is 18.19 inches.
Area is the quantity that expresses the extent of a region on the plane or on a curved surface. The area of a plane region or plane area refers to the area of a shape or planar lamina, while surface area refers to the area of an open surface or the boundary of a three-dimensional object.
Given that total area of the window is 463 square inches
We will need to write an equation using area of a square an area of a semi circle to find the approximate value of x and we know the total area of the window.
Area of square = [tex]x^{2}[/tex]
The area of the semicircle = [tex]\frac{1}{2}[/tex]πr²
So the radius squared would be 1/4 X squared
And the total area is 463.
We've got to clean this up two times pi times 1/4 that would be 1/8 times pi .
Combine like terms which would be 1.4 x squared.
Divide both sides by 1.4 and take the positive square root.
182x=18
Round to the nearest 100th which would be 18.19.
So value of x which is diameter of semicircle nearest 100th is = 18.19
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Hongbo sold x cell phones in 2013. The number of cell phones he sold in 2014 was 128% greater than in 2013, and the number of cell phones he sold in 2015 was 29% greater than in 2014. Which of the following expressions represents the number of cell phones Hongbo sold in 2015? A) (0.29)(1.28x) B) (0.29) (2.28x) C) (1.29)(1.28x) D) (1.29) (2.28x)
The number of cell phones sold in 2015 is (0.29)(1.28x)
The correct answer is A) (0.29)(1.28x).
What is a linear equation?
A linear equation is an equation in which the highest power of the variable is 1. Linear equations can be written in the form ax + b = 0, where a and b are constants and x is the variable. Linear equations are called "linear" because they represent a straight line when plotted on a graph.
We are told that the number of cell phones Hongbo sold in 2014 was 128% greater than in 2013, which means that he sold 128/100 = 1.28 times as many cell phones in 2014 as he did in 2013. This can be represented by the equation x * 1.28 = number of cell phones sold in 2014.
We are also told that the number of cell phones Hongbo sold in 2015 was 29% greater than in 2014, which means that he sold 29/100 = 0.29 times as many cell phones in 2015 as he did in 2014. This can be represented by the equation (number of cell phones sold in 2014) * 0.29 = number of cell phones sold in 2015.
Substituting the first equation into the second equation, we get:
(x * 1.28) * 0.29 = number of cell phones sold in 2015
This simplifies to:
(0.29)(1.28x) = number of cell phones sold in 2015
Hence, the number of cell phones sold in 2015 is (0.29)(1.28x)
the correct answer is A) (0.29)(1.28x).
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how many 2/3 cup serving are in a 4 cup container of food?
Answer:
6
Step-by-step explanation:
Divide 4 by [tex]2/3[/tex]
[tex]\frac{4}{2/3}[/tex] =[tex]\frac{4*3}{2}[/tex]
=6
Sophie kicks a football. It’s height in feet is given by h(t) = -16t^2 + 16t where t represents the time in seconds after kick. How many seconds have give by when the football is at it highest point?
Answer:
The time at which the football reaches its highest point is 0.5 seconds.
Step-by-step explanation:
The height of an object thrown into the air is determined by the formula h(t) = -16t^2 + vt + h, where t represents the time in seconds after the object is thrown, v is the initial velocity with which the object is thrown, and h is the initial height from which the object is thrown. In this case, the initial velocity of the object is 16 feet per second and the initial height is 0 feet.
To find the time at which the football reaches its highest point, we need to find the value of t that makes the value of h(t) maximum. This value of t can be found by taking the derivative of the equation h(t) and setting it equal to 0. The derivative of h(t) is given by h'(t) = -32t + 16. Setting h'(t) equal to 0, we get -32t + 16 = 0, which can be solved to get t = 0.5 seconds.
Therefore, the time at which the football reaches its highest point is 0.5 seconds.