The expected profit for the first mall is $1,750,000
Given data ,
Let the probability be represented as A and B
Now , For Event A:
Probability of success at the first mall (P(A)) = 2 (given)
Profit if successful (P(A) * Profit | Success) = 2 * $1,050,000 = $2,100,000
Loss if unsuccessful (Loss | Failure) = -$350,000
For Event B:
Probability of success at the second mall (P(B)) = unknown (to be calculated)
Profit if successful (P(B) * Profit | Success) = P(B) * $700,000
Loss if unsuccessful (Loss | Failure) = -$210,000
Expected Profit for Event A = P(A) * Profit | Success + (1 - P(A)) * Loss | Failure
Expected Profit for Event A = 2 * $1,050,000 + (1 - 2) * -$350,000
Expected Profit for Event A = $2,100,000 - $350,000
Expected Profit for Event A = $ 1,750,000
Hence , the profit is $ 1,750,000
To learn more about probability click :
https://brainly.com/question/17089724
#SPJ1
PLEASE HELP THANK UUUUU
The ratio in simplest form is 1:4, the correct option is C.
We are given that;
The options A. 2/3 B. 3/4 C. 1/4 D. 4/1
Now,
The letters D and O are used 2 times and 4 times respectively in the words “RATIOS AND PROPORTIONS”. So we can write the ratio as 2:4.
The GCF of 2 and 4 is 2, since 2 is the largest number that can divide both 2 and 4 without leaving a remainder.
To simplify the ratio, we divide both terms by 2:
2:4 = (2/2):(4/2) = 1:2
Therefore, by the ratio the answer will be 1/4.
Learn more about the ratio here:
brainly.com/question/13419413
#SPJ1
The exchange rate for 15 American Dollars is 17.1 Euro. And 7 Euro are worth 435.2 Dominican Pesos. How
much is 12 American dollars worth in Dominican Pesos?
Answer:
First, we need to convert 15 American dollars to Euro:
15 USD * 17.1 Euro/USD = 256.5 Euro
Then, we can use the exchange rate between Euro and Dominican Pesos to convert Euro to Dominican Pesos:
1 Euro = 435.2 Dominican Pesos/7 Euro
Therefore, 256.5 Euro = (256.5/7) * 435.2 Dominican Pesos = 9,475.2 Dominican Pesos
Finally, we can use the proportion:
12 USD / 15 USD = x Dominican Pesos / 9,475.2 Dominican Pesos
Solving for x, we get:
x = (12/15) * 9,475.2 = 7,580.16 Dominican Pesos
Therefore, 12 American dollars is worth 7,580.16 Dominican Pesos.
A farmer wants to fence in a rectangular plot of land adjacent to the north wall of his barn. No fencing is needed along the barn, and the fencing along the west side of the plot is shared with a neighbor who will split the cost of that portion of the fence. If the fencing costs $24 per linear foot to install and the farmer is not willing to spend more than $6000, find the dimensions for the plot that would enclose the most area. Leave in terms of (width, length): (,)
The dimensions of the plot that would enclose the most area are (width, length) = (125/6, 125/3).
We have,
Let's assume that the barn wall is located on the south side of the rectangular plot, and the fencing is required on the remaining three sides (east, north, and west).
Let's denote the width of the plot as x and the length of the plot as y.
Then, the length of fencing required can be expressed as:
L = x + y + x/2
where x/2 is the length of the shared fencing with the neighbor.
The cost of fencing can be expressed as:
C = 24L
Substituting the value of L, we get:
C = 24(x + y + x/2)
Since the farmer is not willing to spend more than $6000, we have:
24(x + y + x/2) ≤ 6000
Simplifying this inequality, we get:
3x + 4y ≤ 500
Now, we need to maximize the area of the rectangular plot, which is given by:
A = xy
Using the inequality constraint, we can express y in terms of x as:
y ≤ (500 - 3x)/4
Substituting this value of y in the expression for A, we get:
A = x((500 - 3x)/4)
Simplifying this expression, we get:
A = (125/4)x - (3/4)x^2
To find the value of x that maximizes A, we can take the derivative of A with respect to x and set it equal to zero:
dA/dx = 125/4 - (3/2)x = 0
Solving for x, we get:
x = 125/6
Substituting this value of x in the expression for y, we get:
y = (500 - 3(125/6))/4 = 125/3
Therefore,
The dimensions of the plot that would enclose the most area are (width, length) = (125/6, 125/3).
Learn more about rectangles here:
https://brainly.com/question/15019502
#SPJ1
Determine whether the graph of the equation is symmetric with respect to the x axis, y axis and or the origin.
X^2 + Y -36 =0
The graph of the equation x² + y - 36 = 0 is symmetric with respect to the y-axis and the origin, but not with respect to the x-axis.
x² + y - 36 = 0
Symmetry with respect to the x-axis:
Replace y with -y: x² - y - 36 = 0
This equation is not equivalent to the original equation, so the graph is not symmetric with respect to the x-axis.
Symmetry with respect to the y-axis:
Replace x with -x: (-x)² + y - 36 = 0
Simplifying, we get x² + y - 36 = 0, which is equivalent to the original equation.
Therefore, the graph is symmetric with respect to the y-axis.
Symmetry with respect to the origin:
Replace x with -x and y with -y: (-x)² + (-y) - 36 = 0
Simplifying, we get x² + y - 36 = 0, which is equivalent to the original equation.
Therefore, the graph is symmetric with respect to the origin.
Hence, the graph of the equation x² + y - 36 = 0 is symmetric with respect to the y-axis and the origin, but not with respect to the x-axis.
To learn more on Graph click:
https://brainly.com/question/17267403
#SPJ1
Classify the pair of angles. Then find the value of x.
Two angles share a side. One angle measures 4 x degrees and the other angle measures 2 x degrees. The sum of the angles is 90 degrees.
The pair of angles are complementary angles and the value of x is 15.
The pair of angles are complementary angles because their sum is equal to 90 degrees.
We can set up an equation based on the given information:
4x + 2x = 90
Simplifying this equation, we get:
6x = 90
Dividing both sides by 6, we get:
Value of x = 15
Therefore, the angle that measures 4x degrees is:
4x = 4(15) = 60 degrees
And the angle that measures 2x degrees is:
2x = 2(15) = 30 degrees
To learn more on Angles click:
https://brainly.com/question/28451077
#SPJ1
At a large university, 20% of students are enrolled in the nursing program. The dean of students selects a random sample of 20 students and records n the number of students enrolled in the nursing program. What is an appropriate assignment of digits to the outcomes for a simulation of this random process? = O Let 1 = the student is enrolled in the nursing program. Let 2-5 = the student is not enrolled in the nursing program. Skip the digits 6-9, and 0. ○ Let 0 and 1 = the student is enrolled in the nursing program. Let 2-5 = the student is not enrolled in the nursing program. Skip the digits 6, 7, 8, 9, and 0. O Let 1 = the student is enrolled in the nursing program. Let 2-9 = the student is not enrolled in the nursing program. Skip the digit 0. O Let 1 and 2 = the student is enrolled in the nursing program. Let 3-9 = the student is not enrolled in the nursing program. Skip the digit 0.
An appropriate assignment of digits to the outcomes for a simulation of this random process would be:
Option 1: Let 0 and 1 = the student is enrolled in the nursing program. Let 2-5 = the student is not enrolled in the nursing program. Skip the digits 6, 7, 8, 9, and 0.
This option assigns two digits, 0 and 1, to represent the two possible outcomes: a student is either enrolled in the nursing program (outcome 1) or not enrolled (outcome 2-5). The digits 2-5 represent the non-nursing program outcomes, and the digits 6-9 and 0 are skipped.
Option 1 is appropriate because it assigns a unique digit to each possible outcome, and the skipped digits are not relevant to the simulation. Additionally, the proportion of digits assigned to each outcome (2 out of 10) corresponds to the proportion of students in the nursing program (20%).
For each of the following functions, match the function to the graph.
The function that matches the above graph is Option C - F(x) = (1/2)^x - 3
What are the properties ofthe function ?
Here are the properties of the function are given as follows
Domain - The domain of the function is all real numbers, as there are no restrictions on the input value x .
Range - the range of the function is (-3, infinity), as the output values approach but never reach - 3 as x approaches negative infinity, and the output values can be arbitrarily large as x approaches infinity.
x -intercept - The x-intercept of the function is (log(2, 3), 0), as F(log(2, 3)) = [( 1/2)^ (log(2, 3) ) ] - 3 = 0.
y-intercept - The y-intercept of the function is (0, -2.5), as F(0) = [(1/2)^0] - 3 = -2.5.
Asymptotes - The horizontal asymptote of the function is y = -3, as the output values approach but never reach -3 as x approaches infinity. There are no vertical asymptotes.
Decreasing function - The function is a decreasing function, as the output values decrease as x increases.
Continuous function - The function is continuous for all real numbers.
Learn more about functions;
https://brainly.com/question/12431044
#SPJ1
What is the volume of this figure?
Enter your answer in the box.
yd³
The volume of the composite figure is
4095 cubic ydHow to find the volume of the composite figureThe volume is calculated by dividing the figure into simpler shapes. and adding the individual volumes
The simple shapes used here include
trapezoid andrectangleVolume of rectangle = length x width x depth
= 30 * 9 * 7
= 1890 cubic yd
Volume of trapezoid = 1/2 (sum of parallel lines) x height x depth
= 1/2 (30 + 19) x 10 x 9
= 2205 cubic yd
Total volume
= 1890 cubic yd + 2205 cubic yd
= 4095 cubic yd
Learn more about composite shapes at
https://brainly.com/question/8370446
#SPJ1
find the number of lamps should be manufactured annually
The solution is :Total manufacturing cost per Lamp is $15.10 per lamp.
Explanation:
Cost per part of Material handling = $3000/6000 parts
Cost per part of Material handling = $0.50 per part
Assembling per hour = $7200/3000
Assembling per hour = $2.40 per hour
Packaging per lamp = $4000/2000
Packaging per lamp = $2 per lamp
Total manufacturing cost per Lamp = $8 + (9*$0.50) + ($2.40/4) + $2
Total manufacturing cost per Lamp = $8 + $4.5 + $0.6 + $2
Total manufacturing cost per Lamp = $15.10 per lamp
To learn about cost click:
brainly.com/question/12908382
#SPJ1
complete question:
Traditions Home Accessories Company manufactures decorative lamps using an activity-based costing system to allocate all manufacturing conversion costs. The following information is provided for the month of June: Activity Estimated Indirect Activity Costs Allocation Base Estimated Quantity of Allocation Base Materials handling $3,000 Number of parts 6,000 parts Assembling $7,200 Number of hours 3,000 hours Packaging $4,000 Number of lamps 2,000 lamps Four lamps can be assembled in 1 hour. Each lamp consists of 9 parts. The total direct materials cost per lamp is $8.00. What is the total manufacturing cost per lamp
Let f be a function defined on binary strings as follows: If u is a string such that u = abc where la| = |b| = |c| then f(u) = a. %3D For example, if u = 101101011, then f(u) = 101. Which of the following statements are true? a. The cardinality of the set {u | f(u) = u} is 1. b.f is a total function. c. If Jul = 24, then f(f(u) is not defined. d. F is an injection. e. The range of f is the set of all binary strings. f. fis onto the set of all binary strings.
f is onto the set of all binary strings:
This statement is false for the same reason as (e). The range of f is limited to a subset of all binary strings.
What is function?
In mathematics, a function is a relationship between two sets of elements, called the domain and the range, such that each element in the domain is associated with a unique element in the range.
a. The cardinality of the set {u | f(u) = u} is 1:
This statement is true because f(u) returns only the first third of the input string u. Therefore, if f(u) = u, then the second and third thirds of the string u must be empty, and hence u must consist entirely of the first third, which means there can be only one such string.
b. f is a total function:
This statement is false because not all binary strings can be decomposed into three parts with the described property. For instance, a binary string of length 5 cannot be decomposed in this way.
c. If |u| = 24, then f(f(u)) is not defined:
This statement is false. If |u| = 24, then u can be decomposed into three parts with 8 bits in each part. Therefore, f(u) will return the first 8 bits of u, which can be decomposed into three parts with 2, 3, and 3 bits, respectively. Therefore, f(f(u)) will return the first 2 bits of the first third of u, which is well-defined.
d. f is an injection:
This statement is false. Since f only returns the first third of its input, there can be multiple inputs that yield the same output.
e. The range of f is the set of all binary strings:
This statement is false. The range of f only consists of binary strings that are the first third of some input string that can be decomposed as described.
f. f is onto the set of all binary strings:
This statement is false for the same reason as (e). The range of f is limited to a subset of all binary strings.
To learn more about functions from the given link:
https://brainly.com/question/12431044
#SPJ1
What does f(t) + g(t) mean in this context?
The expression f(t) + g(t) in the context of composite functions mean (f + g)(t)
What does f(t) + g(t) meanFrom the question, we have the following parameters that can be used in our computation:
f(t) + g(t)
The above means that we add the functions f(t) and g(t) together to form another function i.e. a composite function (f + g)(t)
Another way to write the sum of the functions is (f + g)(t)
So, in this context; f(t) + g(t) means (f + g)(t)
Read more about composite function
https://brainly.com/question/10687170
#SPJ1
A teacher was interested in the cafeteria food that students preferred in a particular school. She gathered data from a random sample of 200 students in the school and wanted to create an appropriate graphical representation for the data.
Which graphical representation would be best for her data?
Stem-and-leaf plot
Line plot
Box plot
Answer:
A stem-and-leaf plot is a graphical representation of a dataset where the numbers are separated into two parts: the stem (the leftmost digit or digits) and the leaf (the rightmost digit). The stem values are listed vertically and the corresponding leaf values are listed to the right of the stem in a row. This type of plot allows for quick and easy data analysis, as it shows the distribution of the data and provides information about the frequency and range of the values. It is particularly useful for smaller datasets and can be easily constructed by hand or with software.
Write a function of the form y= A sin (Bx-C)+D that has period 8, phase shift -2, and the range -12 ≤ y ≤-4.
The general form of the function is:
y = A sin(Bx - C) + D
To determine the specific values of A, B, C, and D that satisfy the given conditions, we can use the following steps:
Period: The period of a sinusoidal function is given by 2π/B, where B is the coefficient of x in the argument of the sine function. In this case, the period is 8, so we have:
2π/B = 8
Solving for B, we get:
B = π/4
Phase shift: The phase shift of a sinusoidal function is given by C/B, where C is the constant inside the argument of the sine function. In this case, the phase shift is -2, so we have:
C/B = -2
Substituting B from step 1, we get:
C/(π/4) = -2
Solving for C, we get:
C = -π/2
Amplitude and vertical shift: The range of the function is given as -12 ≤ y ≤ -4. The amplitude of a sinusoidal function is half the distance between its maximum and minimum values. In this case, the amplitude is:
(amplitude) = (maximum - minimum)/2 = (-4 - (-12))/2 = 4
The vertical shift of the function is given by the constant term D. Since the minimum value of the function is -12, we have:
D + (amplitude) = -12
Substituting the value of the amplitude from above, we get:
D + 4 = -12
Solving for D, we get:
D = -16
Therefore, the function of the form y = A sin(Bx - C) + D that has period 8, phase shift -2, and the range -12 ≤ y ≤ -4 is:
y = 4 sin(π/4 x + π/2) - 16
What percentage do you have invested in bonds if your portfolio consists of $45,000 invested in U.S. Treasuries, $32,000 in high-grade corporate
bonds, and $74,000 in growth stocks?
51%
45%
50%
52%
To find the percentage invested in bonds, we need to add the amounts invested in U.S. Treasuries and high-grade corporate bonds, and then divide by the total value of the portfolio:
Total amount invested in bonds = $45,000 + $32,000 = $77,000
Total portfolio value = $45,000 + $32,000 + $74,000 = $151,000
Percentage invested in bonds = (Total amount invested in bonds / Total portfolio value) x 100%
= ($77,000 / $151,000) x 100%
= 51.0%
Therefore, the answer is 51%.
I hope this helps you!
Change this percent to a fraction
125%
Answer: 1[tex]\frac{1}{4}[/tex]
Step-by-step explanation:
Divide using long division. The whole number portion will be the number of times the denominator of the original fraction divides evenly into the numerator of the original fraction, and the fraction portion of the mixed number will be the remainder of the original fraction division over the denominator of the original fraction.
topic: upper and lower bounds
why does there need to be a 5 placed at the end of 8.23, 8.24, 3.4 and 3.5?
Context cleared up in the picture provided:
Note that the upper bound for v is 2.356.
What is the explanation for the above figure?
To find the upper bound for v, divide te upper bound for s by the lower bound for t, because dividing by a smaller integer give a bigger quotient.
Adding 0.5 x 0.1 t to the value of s yields the upper bound for s with t decimal places.
As a result, the upper bound for s with two decimal places is......
8.24 + 0.5 x 0.1² = 8.245
The lower bound for t with 1 decimal place is simply the given value of 3.5.
So, the upper bound for v is ..
v = s/t = 8.245/3.5 = 2.355714...
Rounding this to 3 decimal places, we get:
v ≈ 2.356
Learn more about upper bound:
https://brainly.com/question/22965427
#SPJ1
I can prove that 2=1, where is the error?
X = 1
X+X = 1+X
2x = 1+X
2x = X+1
2X-2 = X+1-2
2x-2 = X-1
2 (x-1)/(x-1) = X-1/X-1
2 times 1 = 1 1-1 / 1-1
2 = 1
I subtracted -2
because thats the # I chose to subtract with.
There is no error in steps while proving 2=1
We have to prove 2=1
Let x=1
Add X on both sides
X+X = 1+X
2x = 1+X
2x = X+1
Subtract 2 from both sides
2X-2 = X+1-2
2x-2 = X-1
2(X-1)=x-1
Divide both sides by x-1
2 (x-1)/(x-1) = X-1/X-1
We get 2=1
Hence, while proving 2=1 there is no error in steps
To learn more on Number system click:
https://brainly.com/question/22046046
#SPJ1
A committee of four people is formed by selecting members from a list of 12 people.
How many different committees can be formed?
__ committees
The number of different committees that can be formed is 495
How many different committees can be formed?From the question, we have the following parameters that can be used in our computation:
People = 12
Committee = 4
These can be represented as
n = 12 and r = 4
The number of different committees that can be formed is
Number = nCr
So, we have
Number = 12C4
Evaluate
Number = 495
Hence, the committee are 495
Read more about combination at
https://brainly.com/question/11732255
#SPJ1
Michael solved the given problem. Determine whether Michael's work is correct. If not, which step is incorrect?
Responses
A Step 1
B Step 4
C Step 3
D Step 2
Based on the information, the incorrect step is C. step 3.
How to calculate the valueStep 1: 4(3x – 3y = 6) –3(4x – 7y = 2)
Step 2: 12x – 12y = 24 –12x + 21y = –6
Step 3: 9y = 18
Step 4: y equals 1 over 2
Correct calculation:
3x – 3y = 6 (1)
4x – 7y = 2 (2)
make x the subject in ....(1)
3x - 3y = 6
3x = 6 + 3y
x = 6 + 3y/ 3
x = 2 + y
substitute x = 2 + y into (2)
4x – 7y = 2 (2)
4(2 + y) - 7y = 2
8 + 4y - 7y = 2
8 - 3y = 2
8 + 2 = -3y
10 = -3y
y = 10/-3
y = -3 1/3
Learn more about equations on
https://brainly.com/question/2972832
#SPJ1
Michael solved the system of linear equations and provided the solution. 3x – 3y = 6 4x – 7y = 2 Step 1 4(3x – 3y = 6) –3(4x – 7y = 2) Step 2 12x – 12y = 24 –12x + 21y = –6 Step 3 9y = 18 Step 4 y equals 1 over 2 In which step did Michael show his first error? Step 2 Step 3 Step 4
Exercise C-7 (Algo) Calculate the present value of a single amount (LO C-3)
You have entered into an agreement for the purchase of land. The agreement specifies that you will take ownership of the land
immediately. You have agreed to pay $48,000 today and another $48,000 in three years. Calculate the total cost of the land today.
assuming a discount rate of (a) 4%, (b) 6%, or (c) 8%. (FV of $1. PV of $1. EVA of $1, and PVA of $1) (Use tables, Excel, or a financial
calculator. Round your answers to 2 decimal places.)
a.
b.
C.
Payment
Amount
$ 48,000
48,000
48,000
Interest
Rate
6%
8%
Compounding
Annually
Annually
Annually
Period Due
3 years
3 years
3 years
Total Cost of Land
Today
According to the compound interest concept the total cost of the land today is $89,306.64, $86,249.94, $83,693.44 respective to the discount percentage.
To calculate the PV of the second payment of $48,000 due in three years, we need to use the formula for the present value of a single sum:
PV = FV / (1 + r)ⁿ
where PV is the present value, FV is the future value, r is the discount rate, and n is the number of periods.
Using the given information, the FV is $48,000, the discount rate is 4%, 6%, or 8%, depending on the question, and the number of periods is three. Using a financial calculator, Excel, or present value tables, we can calculate the PV of the second payment:
For a discount rate of 4%:
PV = $48,000 / (1 + 0.04)³ = $41,306.64
For a discount rate of 6%:
PV = $48,000 / (1 + 0.06)³ = $38,249.94
For a discount rate of 8%:
PV = $48,000 / (1 + 0.08)³ = $35,693.44
Next, we need to add the PV of the second payment to the initial payment of $48,000 to get the total cost of the land today:
For a discount rate of 4%:
Total cost = $48,000 + $41,306.64 = $89,306.64
For a discount rate of 6%:
Total cost = $48,000 + $38,249.94 = $86,249.94
For a discount rate of 8%:
Total cost = $48,000 + $35,693.44 = $83,693.44
To know more about compound interest here
https://brainly.com/question/29335425
#SPJ1
Mrs. Myles gave the same test to both her first and third period class. In first period, the median was 75 and the range was 30. In third period, the median was 80 and the range was 60. Which is a true statement? [Assume that scores can reach a maximum of 100.]
A The lowest score was in third period.The lowest score was in third period. - no response given
B On average, first period did better than third period.On average, first period did better than third period. - no response given
C The highest score was in first period.The highest score was in first period. - no response given
D There is not enough information to know if any of these is true.
Answer:
D There is not enough information to know if any of these is true.
Based purely on the facts provided, we cannot draw any judgements regarding the relative performance of the two classes. The range and median are important indices of central tendency and dispersion, but they do not offer an accurate picture of the score distribution. We don't know the distribution's form, the number of students in each class, or each student's exact score. As a result, we can't tell whether class received the lowest or highest score, or whether one class performed better overall than the other.
Please help !!!!!!!!!!!!!!!!!!!
a) Latonya is correct, as the scale factor of the dilation is of 12.8/4.8.
b) The scale factor was obtained dividing the side length on the dilated figure by the equivalent side length of the original figure.
What is a dilation?A dilation can be defined as a transformation that multiplies the distance between every point in an object and a fixed point, called the center of dilation, by a constant factor called the scale factor.
The ratios for the scale factor are given as follows:
12.8/4.8 = 7.2/2.7 = 4.8/1.8 = 4/1.5 = 8/3.
8/3 as 4 x 2 = 8 and 1.5 x 2 = 3.
More can be learned about dilation at brainly.com/question/3457976
#SPJ1
Find the amount in the account for the given principal, interest rate, time, and compounding period. P = $3,830, r= 5.5%, t = 20 years; compounded monthly
The amount on compound interest is $ 96,685,319.07
What is amount on compound interest?The amount on compound interest is given by A = P(1 + r)ⁿ where P = principal amount, r = interest rate and t = time
To find the amount on compound interest given that
P = $3830r = 5.5 % compounded monthly, so r = 5.5 % × 12 = 66% = 0.66n = 20 yearsSo, substituting the values of the variables into the equation, we have that
A = P(1 + r)ⁿ
A = $3830(1 + 0.66)²⁰
A = $3830(1.66)²⁰
A = $3830(25244.21)
A = $ 96,685,319.07
The amount is $ 96,685,319.07
Learn more about compound interest here:
https://brainly.com/question/28020457
#SPJ1
Find the area and perimeter of the triangle.
8m
3m
9m
4m
Answer: Broken Math Problem
Step-by-step explanation:
A person ordering a certain model of car can choose any of 4 colors, either manual or automatic transmission, and
any of 6 audio systems, How many ways are there to order this model of car?
A) 48 ways
B) 44 ways
C 58 ways
D) 56 ways
Answer:
Step-by-step explanation:
4*2*6=48a
Multiply 16, 3 and 29 and then subtract 17
Answer:
1375
Step-by-step explanation:
16*3*29 = 1392
1392-17 =1375
Solve the following for θ, in radians, where 0≤θ<2π.
3cos2(θ)+7cos(θ)−8=0
Select all that apply:
0.3
0.74
0.57
1.98
1.65
5.71
Answer:correct answer is 0.57
5.71
Step-by-step explanation:We can solve this quadratic equation in cos(θ) by using the substitution u = cos(θ):
3u^2 + 7u - 8 = 0
Now we can factor the quadratic:
(3u - 1)(u + 8) = 0
Therefore, either:
3cos(θ) - 1 = 0
cos(θ) = 1/3
or:
cos(θ) + 8 = 0
cos(θ) = -8 (not possible, since cos(θ) is between -1 and 1)
So, we have cos(θ) = 1/3. Since 0 ≤ θ < 2π, we can find the two solutions in the interval [0, 2π) by using the inverse cosine function:
θ = arccos(1/3)
Using a calculator, we find:
θ ≈ 1.2309 or θ ≈ 5.1102
Therefore, in radians, the solutions for θ are approximately:
1.2309 (which is less than 2π)
5.1102 (which is greater than 2π)
So the only answer that satisfies 0 ≤ θ < 2π is:
1.2309 (rounded to four decimal places)
Therefore, the answer is:
5. A group of students were asked whether they play a sport and whether
they like physical education class. The results are in the table.
Like Physical Education
Do Not Like Physical
Education
A 28%
B. 16%
c. 15%
Play a Sport
150
To the nearest percent, of students who play a sport, what percent do not
like physical education?
D. 7%
Do Not Play a Sport
Answer: 7
Step-by-step explanation:
The percentage of students who play a sport but do not like physical education = 16%
The correct answer is an option (B)
The complete two way frequency table for given situation would be,
Play a Sport Do not Play a Sport Total
Like Physical Education 150 72 222
Do Not Like Physical Education 28 164 192
Total 178 236 414
Now we find the percentage of students who play a sport, and do not like physical education.
The total number of students who play sport.
n = 178
And the number of students who play a sport but do not like physical education are 28.
Using percentage formula, the required percentgae would be,
P = 28/178 × 100
P = 15.73%
P ≈ 16%
Therefore, the correct answer is an option (B)
Learn more about the percentage here:
https://brainly.com/question/24120406
#SPJ1
Find the complete question below.
When Emilia looked at her cell phone bill for the month, she saw that she had spent 1/12 of her minutes talking to her mother and 5/12 of her minutes talking to her best friend. What fraction of the minutes did Emilia spend talking to either her mom or her best friend?
Answer:
1/2
Step-by-step explanation:
1/12 +5/12=1/2
hope this helps
In which quadrant is point B located?
Answer:
Step-by-step explanation:
Quadrant II
A is in Quadrant I then you count counterclockwise
B quadrant II (2)
C Quadrant III (3)
D Quadrant VI (4)
Roman numerals are used to for quadrant number