Answer:
Step-by-step explanation:
x^2 + 6x + 9
D = 6^2 - 9 * 4 = 36 - 36 = 0
x1= [tex]-\frac{6}{2}[/tex]=-3
Simplify sqrt(196a^{16}/a^{14}).
Answer:
[tex] \sqrt{ \frac{196 {a}^{16} }{ {a}^{14} } } = \sqrt{196 {a}^{2} } = 14 |a| [/tex]
which statement best describes the relationship shown in the equation? x^2 + y^2 = 10
The answer is (C) This is not a functional relationship.
The definition of a Functional Relationship:A functional relationship is a relationship between two variables in which each input (independent variable) maps to exactly one output (dependent variable).
In other words, for every value of x, there is only one corresponding value of y that satisfies the equation.
Here we have
The equation x² + y² = 10
The equation x²+ y² = 10 represents a circle with a center at the origin and a radius of √10.
Since a circle passes through multiple points with the same x-coordinate or y-coordinate, it cannot be represented as a function.
Hence, the relationship shown in the equation is not a functional relationship.
Therefore,
The answer is (C) This is not a functional relationship.
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Complete Question:
Which of the following best describes the relationship shown in the equation x² + y² = 10
A. It cannot be determined if this is or is not a functional relationship.
B. This is a functional relationship.
C. This is not a functional relationship.
Luka and Janie are playing a coin toss game. If the coin lands heads up, Luka earns a point; otherwise, Janie earns a point. The first player to reach 18 points wins the game. If 17 of the first 33 tosses have been heads, what is the probability that Janie wins the game?
The probability that Janie wins the game is approximately 0.0955.
What is binomial distribution?The probability distribution of a binomial random variable is known as the binomial distribution. The sample space of a random experiment serves as the domain of a random variable, which is a real-valued function. To further comprehend this, let's look at an illustration.
We can approach this problem using the binomial distribution. Let X be the number of heads in the remaining tosses until one player wins the game, and let p be the probability that the coin lands tails (since if it lands tails, Janie earns a point). Since the first 33 tosses have already been made, there are 50 - 33 = 17 tosses remaining until one player wins.
Since 17 of the first 33 tosses were heads, there were 33 - 17 = 16 tails. Therefore, the probability of getting a tail is p = 1/2.
Let Y be the total number of tosses until one player wins. Since each toss is independent and has a probability of 1/2 of resulting in a head, Y follows a geometric distribution with parameter p = 1/2.
The game ends when one player reaches 18 points, which means there must be at least 35 tosses. Therefore, the probability that Janie wins the game is:
P(Janie wins) = P(Y = 35) + P(Y = 37) + P(Y = 39) + ... + P(Y = 67)
We can use the formula for the geometric distribution to calculate each of these probabilities:
[tex]P(Y = k) = (1 - p)^{(k-1)} * p[/tex]
where k is the number of tosses until one player wins. Plugging in p = 1/2, we get:
[tex]P(Y = k) = (1/2)^{(k-1)} * (1/2)[/tex]
Now we can substitute this into the expression for P(Janie wins):
P(Janie wins) = (1/2)³⁴ + (1/2)³⁶ + (1/2)³⁸ + ... + (1/2)⁶⁶
This is a finite geometric series with first term (1/2)³⁴ and common ratio 1/4 (since each successive term is multiplied by (1/2)²). Therefore, we can use the formula for the sum of a finite geometric series to simplify the expression:
P(Janie wins) = [(1/2)³⁴ * (1 - (1/4)¹⁷)] / (1 - 1/4)
= [(1/2)³⁴ * (1 - (1/2)³⁴)] / (3/4)
= 0.0955
Therefore, the probability that Janie wins the game is approximately 0.0955.
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Two people rented a car from the same agency. The first person drove 1010 miles and paid $232.30 for mileage. The second person drove 765 miles and paid $175.95 for mileage. What is the agency's fee per mile?
Write an equation for the line graphed below
what is y=
Answer:
y=2x+4
Step-by-step explanation:
The entire graph of the function h is shown below write the domain and range of h using interval notation.
The domain and the range of the graphed function are given as follows:
Domain: (-3, 5].Range: [-5, 4).What are the domain and range of a function?The domain of a function is the set that contains all possible input values of the function, that is, all the values assumed by the independent variable x in the function.The range of a function is the set that contains all possible output values of the function, that is, all the values assumed by the dependent variable y in the function.From the graph of the function, the domain and range are obtained as follows:
Domain: (-3, 5], as x ranges from an open circle at x = -3 to a closed circle at x = 5.Range: [-5, 4), as y ranges from a closed circle at y = -5 to a closed circle at y = 4.Missing InformationThe graph is given by the image presented at the end of the answer.
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two students evaluate the expression 17(4+15)
17(4+15)
= 17*19
=323
Answer:- 323
i need help in these 2 questions please help me as fast as you can.
Answer:
Step-by-step explanation:
Reagan invested $18,500 in a savings for 2 years and earned interest of $1,850 at a rate of 5%. The simple interest varies jointly with the principal, rate of interest, and the period of the investment. How much was initially invested if a person earned interest of $3,960 over 3 years at 6%?
The simple interest on the principal $3,960 over 3 years at 6% is $712.8.
Given that, Reagan invested $18,500 in a savings for 2 years and earned interest of $1,850 at a rate of 5%.
Here, simple interest = (18500×5×2)/100
= $1850
A person earned interest of $3,960 over 3 years at 6%.
Here, simple interest = (3960×6×3)/100
= $712.8
Therefore, the simple interest on the principal $3,960 over 3 years at 6% is $712.8.
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does each of the following nets form a rectangular prism a triangular prism or cube if yes name the polyhedron
Rectangular prism and triangular prism is discussed below.
Rectangular prism
In geometry, a rectangular prism is a polyhedron with two congruent and parallel bases. It is also called a cuboid. A rectangular prism has six faces, and all the faces are in a rectangle shape and have twelve edges.Rectangular prism
In geometry, a triangular prism is a three-sided prism; it is a polyhedron made of a triangular base, a translated copy, and 3 faces joining corresponding sides. A right triangular prism has rectangular sides, otherwise it is obliqueTo solve more questions on Prisms, visit the link-
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In 2000, the population of a town was 50,000. In 2010, the population of the town was 48,000. What is the percent change in the town’s population? Your answer should be written as a percent, i.e., 55%.
To calculate the percent change in population, we first need to find the difference between the two population numbers, then divide that difference by the original population, and finally, multiply by 100 to get the percentage change.
The difference in population is:
50,000 - 48,000 = 2,000
To find the percent change, we divide the difference by the original population:
2,000 / 50,000 = 0.04
Finally, we multiply by 100 to get the percentage change:
0.04 x 100 = 4%
Therefore, the percent change in the town's population from 2000 to 2010 is a decrease of 4%.
Step-by-step explanation:
To find the percent change, we need to calculate the difference between the initial population and final population, and then divide it by the initial population.
Change in population = Final population - Initial population
= 48,000 - 50,000
= -2,000
Since the change is negative, it means that there was a decrease in the population.
Percent change = (Change in population / Initial population) x 100%
= (-2,000 / 50,000) x 100%
= -0.04 x 100%
= -4%
Therefore, the percent change in the town's population is -4%.
Find the surface area of a square pyramid with side length 3 m and slant height 6 m.
Daniel randomly surveyed 120 students at his school and found that 96 of them have at least one sibling. Based on these data, how many of the 425 students at his school would be expected to have at least one sibling?
There is an estimate that 340 of the school's 425 students have at least one sibling.
What is the proportion?A mathematical assessment of two numbers is called a proportion. If two sets of provided numbers rise or fall in the same relation, then the ratios are said to be directly proportional to each other.
To estimate the number of students in the school who have at least one sibling, we can use the proportion from the sample.
The proportion of students with at least one sibling can be calculated as:
= 96/120
= 0.8
Expected number of students with at least one sibling in the school:
= Proportion x Total number of students
= 0.8 x 425
= 340
Therefore, it would expect 340 of the 425 students at the school to have at least one sibling.
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Find the area of the figure
Imagine an astronaut is exploring another planet. He throws an object up in the air, and its height (in feet) upward from the surface of the planet is given by the function s(t) = −8.05t2 + 35t, where t is the time in seconds after the object is thrown.
a) What is the initial height of the object?
The initial height of the object is the height at t = 0. Substituting t = 0 in the equation for s(t), we get:
s(0) = -8.05(0)^2 + 35(0) = 0
Therefore, the initial height of the object is 0 feet, which means it is on the surface of the planet.
b) What is the maximum height reached by the object?
The maximum height reached by the object occurs at the vertex of the parabolic function s(t). The vertex of a parabola of the form ax^2 + bx + c is given by the formula:
t = -b/2a
In this case, a = -8.05 and b = 35. Substituting these values, we get:
t = -35/(2*(-8.05)) = 2.17 seconds (rounded to two decimal places)
To find the maximum height, we substitute t = 2.17 seconds in the equation for s(t):
s(2.17) = -8.05(2.17)^2 + 35(2.17) = 34.09 feet (rounded to two decimal places)
Therefore, the maximum height reached by the object is 34.09 feet.
c) When does the object hit the ground?
The object hits the ground when its height s(t) is equal to 0. We can solve the equation -8.05t^2 + 35t = 0 to find the times when s(t) = 0:
-8.05t^2 + 35t = 0
t(-8.05t + 35) = 0
t = 0 or t = 4.34 seconds (rounded to two decimal places)
The first solution, t = 0, corresponds to the initial position of the object, so we can discard it. Therefore, the object hits the ground after approximately 4.34 seconds.
When tracey and Chris’s daughter Emily was born, they set up a trust fund to mature on her 18th birthday. They invested $25,000. When Emily turned 18, the trust fund was worth $100,000. At what continuous rate of interest r was the money invested? (Use A=Pe^rt) enter your answer as a percentage rounded to one decimal point.
Answer: The continuous interest rate at which the money was invested is approximately 15.4%.
Step-by-step explanation: We can use the formula for continuous compounding to find the value of r:
A = Pe^(rt)
Where A is the final value, P is the initial investment, e is the base of the natural logarithm, r is the continuous interest rate, and t is the time.
Plugging in the given values, we get:
$100,000 = $25,000e^(r*18)
Dividing both sides by $25,000 and taking the natural logarithm of both sides, we get:
ln(4) = 18r
Solving for r, we get:
r = ln(4)/18 ≈ 0.154
Multiplying by 100 to convert to a percentage and rounding to one decimal point, we get:
r ≈ 15.4%
Therefore, the continuous interest rate at which the money was invested is approximately 15.4%.
Moneysaver's Bank offers a savings account that earns 8.5% interest compounded continuously. If Goran deposits $2300 , how much will he have in the account after four years, assuming he makes no withdrawals?
He would have $13,409 in the account after four years .
We have the information from the question:
Money saver's Bank offers a savings account that earns 8.5% interest compounded continuously.
And, Goran deposits is $2300.
Now, According to the question:
Principle of the amount is = $2300
Rate of Interest is = 8.5% continuously
Time period = 4 years
We have to apply the formula :
[tex]A = Pe^R^T[/tex]
[tex]A=2300e^8^.^5^(^4^)[/tex]
A = 2300 × 5.83
A = $13,409
Hence, He would have $13,409 in the account after four years .
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There are a total of 1,981 students enrolled at Amelia's high school. Amella surveyed 150 of the students regarding their morning drink preference. Her results are recorded in the table.
Complete the statement.
According to Amelia's results, [DROP DOWN 1] prefer coffee in the morning. If the margin of error is ±0.072, between [DROP DOWN 2] and [DROP DOWN 3) students at the school prefer coffee.
The margin of error is 0.35
How to solveAccording to Amelia's results, 42% of students prefer coffee in the morning.
If the margin of error is ±0.072, between 689 and 978 students at the school prefer coffee.
How do we calculate for the percentage and margin of error?
To calculate percentages;
total coffee takers/ total number of students surveyed x 100.
TCT= 63 TSS = 150 which then becomes 63/150x 100 = 42
To calculate the margin of error;
TCT/TSS - ME and TCT/TSS + ME, which becomes
63/150 + 0.072 = 0. 49
63/150 - 0.072 = 0.35
Next, we calculate the highest and lowest number by saying;
0.49 x total number of students in the school 1,981 =
0. 35 x total number of students in the school 1,981 =
The above answer is in response to the full question below;
There are a total of 1,981 students enrolled at Amelia's high school. Amella surveyed 150 of the students regarding their morning drink preference. Her results are recorded in the table.
Drinks number
Milk 45
Juice 18
Coffee 63
Smoothie 11
Others 13
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Answer:
drop down 1: 42%
drop down 2: 689
drop down3 : 975
Step-by-step explanation:
I dont nkow wht to do here
pls answer
woth 20 point!!
Answer: 25.461 cm
Step-by-step explanation:
The circumference of a circle can be found using the formula C = πd, where d is the diameter and π (pi) is a constant value of approximately 3.14159.
Substituting d = 8.1 cm into the formula, we get:
C = πd
C = 3.14159 x 8.1 cm
C = 25.461 cm (rounded to 3 significant figures)
Therefore, the circumference of the circle with diameter 8.1 cm is approximately 25.461 cm.
How many times can 1/5 go into nine
Answer:
1.8
Step-by-step explanation:
Use special right triangles to write cos 45° as a fraction in simplest radical form.
Answer:
[tex] \frac{ \sqrt{2} }{2} [/tex]
Step-by-step explanation:
I took the quiz :)
1) state the null hypothesis
2) report the results in APA format
An example of how you can report your analysis in APA style is
A one-way ANOVA was conducted to compare the effects of three conditions (High, Moderate, and Low) on the dependent variable. The results showed no significant difference between the groups, F(2, 12) = 1.77, p = .212. Therefore, we fail to reject the null hypothesis, as the p-value is greater than the typical alpha level of .05.
What information must you include when reporting in APA style?To put out a good APA report, ensure you know the independent and dependent variable. The information provided in the picture did not explicitly state the variables that was being tested. For example, "A one-way ANOVA was conducted to compare the effects of stress levels (independent variable) on the academic performance (dependent variable).
Secondly, you should know the significant level that helps you judge whether or not to reject the hypothesis.
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Shannon’s Brewery in Keller, Texas is expanding distribution to a number of cities along the I-35 corridor south from Dallas to the Gulf Coast. Shannon’s typically distributes through large distributors such as Ben E. Keith located in Denton, Texas. However, Shannon Carter, CEO of Shannon’s Brewery, wants to employ a series of missionary sales persons to service restaurants, bars, supermarkets, and liquor stores. Their job will be to promote Shannon’s craft beers to these retailers and encourage them to place orders with Shannon’s normal distributor in that area. Based on research, Shannon Carter has identified an initial 688 retailers that are potential adopters of his beers. He estimates that it will take ten visits per year to acquire and then service each account. Each sales call is expected to take 32 minutes. Assume a 40-hour work week for sales reps and that 50% of each rep's time will be consumed by non-selling tasks and travel time. How many missionary sales reps will Shannon need to hire? (Note: you must convert the time allotted for each sales call from minutes to hours.) Round your answer up to the nearest 1/10 of a rep (in reality, as noted above, you would round to the next whole rep).
Answer:
mark me brilliant
Step-by-step explanation:
First, we need to determine the amount of time each sales representative can spend on selling each week.
A 40-hour work week is equivalent to 2,400 minutes (40 hours x 60 minutes/hour).
If 50% of each rep's time is consumed by non-selling tasks and travel time, then they have 1,200 minutes (2,400 minutes x 50%) available for selling each week.
Each sales call takes 32 minutes, so a rep can make 75 sales calls per week (1,200 minutes available for selling ÷ 32 minutes per sales call).
It takes 10 visits per year to acquire and service each account, which means a sales rep needs to visit each of the 688 potential adopters 10 times per year, or 6,880 visits in total per year.
Each sales rep can make 75 visits per week, which means they can make 3,900 visits per year (75 visits per week x 52 weeks in a year).
Therefore, Shannon will need to hire 1.76 sales reps (6,880 total visits needed ÷ 3,900 visits per year per sales rep).
Rounding up to the nearest 1/10 of a rep, Shannon should hire 1.8 sales reps.
Please answer the question
O
Houghton Mifflin Harcourt Publishing Company
5.
S
WRITE Math Draw two different figures that
each have a perimeter of 20 units.
S
+htt
E
S
Answer:
To draw a figure with a perimeter of 20 units, you can start by drawing a shape with sides that add up to 20 units. For example, you could draw a rectangle with sides of 5 units and 5 units and two sides of 2.5 units each. This would give you a perimeter of 20 units.
Another example could be drawing a square with sides of 5 units each. This would also give you a perimeter of 20 units.
For the second figure, you could draw a triangle with sides of 8 units, 6 units, and 6 units. This would give you a perimeter of 20 units.
Alternatively, you could draw a pentagon with sides of 4 units each. This would also give you a perimeter of 20 units.
Step-by-step explanation:
Tiffany drew the design below that she is going to use on a stained glass window above her front door identify all the days in Tiffany’s design. See image below.
Answer:
Step-by-step explanation:
did you figure it out? i need help too
Find the cosecant of ∠C.
27
36
C
D
E
The calculated value of the cosecant of ∠C is 1.33
Finding the cosecant of ∠C.From the question, we have the following parameters that can be used in our computation:
CD = 27
CE = 36
The cosecant of ∠C. is then calculated as
Cosecant ∠C. = CE/CD
substitute the known values in the above equation, so, we have the following representation
Cosecant ∠C. = 36/27
Evakuate
Cosecant ∠C. = 1.33
Hence, teh solution is 1.33
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Find the future value of an investment of $12500 if it is invested for four years and compounded semiannually at an annual rate of 4%. Use the $1.00 future value table or the future value and compound interest formula.
Answer:
$14,636.97
Step-by-step explanation:
FV = PV x (1 + r/n)^(nt)
where r is the annual interest rate (as a decimal), n is the number of compounding periods per year, t is the number of years the money is invested, and PV is the present value.
In this case, r = 0.04 (4% as a decimal), n = 2 (since it is compounded semiannually), t = 4, and PV = $12500. Substituting these values into the formula, we get:
FV = $12500 x (1 + 0.04/2)^(2x4)
FV = $12500 x (1.02)^8
FV = $14,636.97
Therefore, the future value of the investment after four years is $14,636.97.
[tex]~~~~~~ \textit{Compound Interest Earned Amount} \\\\ A=P\left(1+\frac{r}{n}\right)^{nt} \quad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{original amount deposited}\dotfill &\$12500\\ r=rate\to 4\%\to \frac{4}{100}\dotfill &0.04\\ n= \begin{array}{llll} \textit{times it compounds per year}\\ \textit{semiannually, thus two} \end{array}\dotfill &2\\ t=years\dotfill &4 \end{cases} \\\\\\ A = 12500\left(1+\frac{0.04}{2}\right)^{2\cdot 4} \implies A \approx 14645.74[/tex]
1 How many US dollars do you get for £100? 2 How many Sri Lankan rupees do you get for £50? 3 How many euros do you get for £30? 4 How many pounds do you get for 380 Sri Lankan rupees?
Answer:1: $124.25 2: 20,222.50Rs, 3: 33.90 euro, 4:0.94 pounds
Step-by-step explanation:
Question 4 Answer saved Marked out of 1.00 Flag question 59. Causes and effects in paragraphs do one of the following
According to the information, we can infer that the correct statement about causes and effects in paragraphs is: help the writer to explain reasons for an event (option B).
How to select the correct option?
To select the correct option we have to look for a definition of "cause and effect". In summary, this concept refers to the development of an event and focuses on the relationship between some events with others, for example:
If I didn´t my homework, I'm going to lose maths.
According to the above, the correct sentence about causes and effects is: help the writer to explain reasons for an event (option B).
Note: This question is incomplete. Here is the complete information:
Causes and effects in paragraphs do one of the following____
Help the reader to understand difficult concepts
Help the writer to explain reasons for an event
Help the writer to create an accurate image of an event
Help both writer and reader
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