Answer:
Step-by-step explanation:
2:3:4:6
Angles in a quadilateral 360
2 + 3+4+6 =15
2/15 × 360° =48°
3/15 × 360° = 72°
4/15 × 360° = 96°
6/15 × 360° = 144°
A parabola can be drawn given a focus of
(-8, 1) and a directrix of y=-1. What
can be said about the parabola?
The parabola has a vertex at
( , ) has a p-value of ( )
and it
We can say about the parabola given a focus of (-8, 1) and a directrix of y = -1 is as:
The parabola is a vertical parabola and facing up.The vertex of the parabola is v(-8, 0).p value of the parabola is 1.A parabola refers to the shape that traces the equation of the form ax² + bx + c.
A parabola's directrix is a vertical or horizontal line that never contacts the parabola and is located at p distance from the vertex and 2p distance from the focus.
The parabola created when the directrix is on the y coordinate called a vertical parabola.
If the directrix value is greater than the corresponding focus or vertex, there will be a negative p and the parabola will face downhill.
If the directrix value is less than the corresponding focus or vertex, there will be positive p and the parabola will face up.
From the given definition of the directrix, we can find the value of p;
2p = y coordinate of focus - equation of the directrix
2p = 1 - (-1)
2p = 2
p = 1
Vertex, v(h, k) compared with f(h, k + p), we will get;
k + p = 1
k = 0
Therefore, the vertex is (-8, 0).
Thus, we can say about the parabola given a focus of (-8, 1) and a directrix of y = -1 is as:
The parabola is a vertical parabola and facing down.The vertex of the parabola is v(-8, 0).p value of the parabola is 1.To learn more about directrix of a parabola visit:
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if k is a positive integer, find the radius of convergence, r, of the series [infinity] (n!)k 2 ((k 2)n)! xn n = 0 .
The radius of convergence of the given series can be found using the ratio test. The ratio test states that if lim |an+1/an| = L, then the series converges absolutely if L < 1 and diverges if L > 1. If L = 1, the test is inconclusive.
Applying the ratio test to the given series, we have:
=lim \(|((n+1)!)^k * 2 * ((k^2)(n+1))! * x^(n+1)| / |(n!)^k * 2 * ((k^2)n)! * x^n|\)
= lim \(|(n+1) * 2 * (k^2)(n+1) * x| / (k^2 * (n+1) + k^2n)\)
= lim\(|2x(k^2)(n+1)| / (k^2(n+1) + k^2n)\)
= lim\(|2x(k^2)| / k^2\)
= 2|x|
Therefore, the series converges absolutely if 2|x| < 1, or |x| < \(\frac{1}{2k^2.}\) Thus, the radius of convergence is r = \(\frac{1}{2k^2}\). In summary, the radius of convergence of the given series [infinity] (n!)k 2 ((k 2)n)! xn n = 0 is r =\(\frac{1}{2k^2.}\), which can be found using the ratio test.
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DUE SOON!
Solve for X.
Answer:
mark me as a brainlist then I will answer
The McMichael family is going to the movies to see Sing 2. Every ticket costs the same price and they spend a total of $100. If 8 people attend the movie, what is the cost per ticket?
The McMichael paid cost per ticket of $12.5 to see sing 2
What is an equation?An equation is an expression showing the relationship between two or more numbers and variables. An equation can either be linear, quadratic, cubic and so on depending on the degree.
Let x represent the cost of each ticket.
Every ticket costs the same price and they spend a total of $100. 8 people attended, hence:
8 * x = 100
8x = 100
Dividing both sides of the equation by 8:
8x / 8 = 100 / 8
x = 12.5
The cost per ticket was $12.5
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38 x 92
I need hello
Answer:
3588
Step-by-step explanation:
that's it no Problem
1)
Using a scale of 1:50000 how many cm on a
map would represent 0.5 km?
Can someone help me with this it would really mean a lot to me
Answer:
Below
Step-by-step explanation:
1:50000 means 1 cm on the map is 50 000 cm in the real world
so 1 cm on the map = 500 m in the real world (100cm = 1m)
500 m IS .5 km
so 1 cm on the map = .5 km
Answer: 1 cm
Step-by-step explanation: convert 50000 cm into km. This will give you 0.5 km. This means that 1 cm represents 0.5km
please help!! lol y=?x+?
Answer:
y= 4x-9
Step-by-step explanation:
Pls po i really need this help. I'll mark brainliest who answered po.
The table is filled as follows
x P(x) x P(x) (x - μ)²
3 3 9 961
4 7 28 900
5 22 110 841
6 60 360 784
7 85 595 729
8 32 256 676
9 8 72 625
mean, μ = 34.05
variance = 919.33
standard deviation = 30.32
How to solve for the meanThe mean is calculated using the information provided as follows
= summation of (x P(x) ) / summation of x
= 1430 / 42
=34
The variance is solved by the formula
= summation of (x - μ)² / (n - 1), where n = 7
= 5516 / (7 - 1)
= 5516 / 6
= 919.33
the standard deviation is solved using the formula
= √variance
= √919.33
= 30.32
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what is the length of the diagonal C
then find the length of diagonal D
Answer:
d = √389
Step-by-step explanation:
to find c we use 15 and 8 into the formula of "a^2 + b^2 = c^2" which is 17. Now we use 17 and 10 as a and b to find c in the formula which is d.
a^2 + b^2 = c^2
10^2 + 17^2 = x^2
100 + 289 = x^2
389 = x^2
√389 = √x^2
√389 = x
The age distribution of a population is shown.
a. The probability that a person chosen at random is at least 15 years old is__%
b. The probability that a person chosen at random is 25 - 44 years old is___%
Answer:
The age distribution of a population is shown.
a. The probability that a person chosen at random is at least 15 years old is 14%
b. The probability that a person chosen at random is 25 - 44 years old is 26%
The probability that a person chosen at random is at least 15 years is 80%
The probability that a person chosen at random is 25 - 44 years old is 26%
What are the probabilities?
Probability determines how likely it is that a stated event would occur. This probability lies between 0 and 1.
The probability that a person chosen at random is at least 15 years = sum of percentages of people at least 15 years old : 14 + 13 + 13 + 15 + 12 + 13 = 80%
The probability that a person chosen at random is 25 - 44 years old : 13% + 13% = 26%
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I will mark you as the brainiest if you get this correct
Answer:
125 ml
Step-by-step explanation:
250 ml is required to make 8 pancakes, so in order to make half as many pancakes, you will need half as much milk.
250 ÷ 2 = 125
Round 2.486 to the nearest hundredth.
Answer:
2.490
Step-by-step explanation:
It is over the half point so, if it's over round up. if not, round down.
James purchased a gaming computer for $2,499. He anticipates each year it will decrease in value by 7.9% from the previous year. Write an exponential function that models the value in dollars of the computer x years after James's purchase.
Answer:
f(x)=2499(0.079)
Step-by-step explanation:
need help quick please
Answer:
174 square inches
Step-by-step explanation:
5 times 3 is 15, multiply 15 by two. We get 30. Keep this in mind. Now, multiply 9 by 3. This is 27. Multiply 27 by two to get 54. Also keep this in mind. Now, multiply 5 by 9 to get 45. Multiply 45 by 2 to get 90. Now, add all of the bold numbers together to get your answer.
30+90+54
120+54
174
Divide f(x) by g(x) using long division and write the result using the division algorithm. Please help!
To use long division in polynomials, we follow steps similar to normal long division, but we look for the terms from higher degree to lower.
We are dividing:
\(4x^3-7x^2+3\)By:
\(2x-1\)We want to multiply the divisor by some expression that will make the higher term equal to the higher term of the dividend. The higher term of the dividend is 4x³, to get to that, we can multiply the divisor by 2x²:
\(2x^2(2x-1)=2x^2\cdot2x-2x^2=4x^3-2x^2\)Now we have the same term, so we just substract what we have got from the dividend:
\(\begin{gathered} 4x^3-7x^2+3 \\ -(4x^3-2x^2) \\ \\ 4x^3-4x^3-7x^2+2x^2+3 \\ -5x^2+3 \end{gathered}\)Notice that we don't have a third degree term anymore.
So, until now we have done:
- Multiplied the divisor by 2x²
- Got a remainder of -5x² + 3
Now, we just repeat with the remainder.
We want to multiply 2x - 1 so that the higher term is -5x², so we can multiply by -5x/2:
\(-\frac{5x}{2}(2x-1)=-\frac{5x\cdot2x}{2}+\frac{5x}{2}=-5x^2+\frac{5x}{2}\)And we do the substraction:
\(\begin{gathered} -5x^2+3 \\ -(-5x^2+\frac{5x}{2}) \\ \\ -5x^2+5x^2-\frac{5x}{2}+3 \\ -\frac{5x}{2}+3 \end{gathered}\)So, now we have got:
- Multiplied the divisor by 2x² and then by -5x/2
- Got a remainder of -5x/2 + 3
Now, we repeat once more:
To get -5x/2, we multiply the divisor by -5/4:
\(-\frac{5}{4}(2x-1)=-\frac{5\cdot2x}{4}+\frac{5}{4}=-\frac{5x}{2}+\frac{5}{4}\)And we substract from the remainder:
\(\begin{gathered} -\frac{5x}{2}+3 \\ -(-\frac{5x}{2}+\frac{5}{4}) \\ \\ -\frac{5x}{2}+\frac{5x}{2}+3-\frac{5}{4} \\ \frac{12-5}{4} \\ \frac{7}{4} \end{gathered}\)So, we have done:
- Multiplied the divisor by 2x² then -5x/2 then -5/4
- Got a remainder of 7/4
This means that th result of the division is:
\(2x^2-\frac{5x}{2}-\frac{5}{4}\)And the remainder is:
\(\frac{7}{4}\)But, the answer wants us to write what the dividend is equal to.
Let's write first in the division form:
\(\frac{4x^3-7x^2+3}{2x-1}=2x^2-\frac{5x}{2}-\frac{5}{4}+\frac{\frac{7}{4}}{2x-1}\)Notice that we result is the quotient plus the remainder divided by the divisor.
If we multiply both sides by the divisor, we will get:
\(4x^3-7x^2+3=(2x-1)\mleft(2x^2-\frac{5x}{2}-\frac{5}{4}\mright)+\frac{7}{4}\)That is the answer.
Help I am almost out of point!!
The diagram shows the relative positions of Earth and the Moon and rays of sunlight. Based on the diagram, which phase of the Moon would we see from Earth?
I have tryed option one and 2!
Answer:
first quarter
Step-by-step explanation:
Add:
25 + 1-14 +3
A 42
B 53
C14
D 37
Answer:
None of the answers are right the answer is 15
Step-by-step explanation:
25 plus 1 equals 26, and 26 minus 14 equals 12, and 12 plus 3 equals 15, so I don't think that any of the answers are correct.
Answer:
The answer is 15 (none on option)
Step-by-step explanation:
25+1-14+3
= (25+1+3)-14
= (26+3)-14
= 29-14
= 15
Please answer the the question in the image it’s geometry
if 5 peaches cost $6 dollars how much money is it for 1 peach
The amount of money that one peach would cost is $1.2.
How to determine the unit price?Generally speaking, a unit price can be defined as the price that is being charged by a seller for the sale of a single unit of product.
In order to determine the unit price, we would determine the unit price for number of peaches by using the following mathematical expression;
Unit price = Cost of peaches/Number of peaches
Substituting the given parameters into the unit price formula, we have the following;
Unit price = $6/5
Unit price = $1.2.
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*Brain Teaser* You are given 10 words , all jumbled. You have to rearrange the letters in such a way that they form words , all ending in *x*. So start using your brain. 1. Mxocpel 2. Ovnexc 3. Pneapxid 4. Aralplxa 5. Qineuxo 6. Xebthcatro 7. Fnulix 8. Niatcimlxa 9. Arxlyn 10. Cfruciix
Answer:
1. C o m p l e x
2. C o n v e x
3. A p p e n d i x
4. P a r a l l a x
5. E q u i n o x
6. C h a t t e r b o x
7. I n f l u x
8. A n t i c l i m a x
9. L a r y n x
10. C r u c i f i x
The circumference of a compact disc is 28.26 centimeters. If the diameter of the
compact disc is 9 centimeters, which of the following best describes n?
Answer:
Step-by-step explanation:
where is the full question????
Ryan invested \$4,800$4,800 in an account in the year 1990, and the value has been growing exponentially at a constant rate. The value of the account reached \$6,300$6,300 in the year 1998. Determine the value of the account, to the nearest dollar, in the year 2007.
well, from 1990 to 1998 is 8 years, and we know the amount went from $4800 to $6300, let's check for the rate of growth.
\(\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\dotfill & \$6300\\ P=\textit{initial amount}\dotfill &\$4800\\ r=rate\to r\%\to \frac{r}{100}\\ t=\textit{years}\dotfill &8\\ \end{cases} \\\\\\ 6300=4800(1 + \frac{r}{100})^{8} \implies \cfrac{6300}{4800}=(1 + \frac{r}{100})^8\implies \cfrac{21}{16}=(1 + \frac{r}{100})^8\)
\(\sqrt[8]{\cfrac{21}{16}}=1 + \cfrac{r}{100}\implies \sqrt[8]{\cfrac{21}{16}}=\cfrac{100+r}{100} \\\\\\ 100\sqrt[8]{\cfrac{21}{16}}=100+r\implies 100\sqrt[8]{\cfrac{21}{16}}-100=r\implies \stackrel{\%}{3.46}\approx r\)
now, with an initial amount of $4800, up to 2007, namely 17 years later, how much will that be with a 3.46% rate?
\(\qquad \textit{Amount for Exponential Growth} \\\\ A=P(1 + r)^t\qquad \begin{cases} A=\textit{accumulated amount}\\ P=\textit{initial amount}\dotfill &4800\\ r=rate\to 3.46\%\to \frac{3.46}{100}\dotfill &0.0346\\ t=years\dotfill &17\\ \end{cases} \\\\\\ A=4800(1 + 0.0346)^{17} \implies A=4800(1.0346)^{17}\implies A \approx 8558.02\)
Increase 42 by 16% show working please
Answer:
48.72
Step-by-step explanation:
your old value =42
your new value = let it be x
your original percentage =100percent
your new percentage:100+16
=116percent
old. new
value. 42. x
percentage 100. 116
cross multiply :x multiply by 100=42 multiplyby 116
100x=42x116
x=42x116/100
x=48.72
So, your increased value is 48.72
The toy car is 2 1/4 inches wide and 5 1/4 inches long what is the area
Answer:
54 3⁄10 = 543/10 in
Step-by-step explanation:
Triangle ABC was rotated clockwise about the origin
What is the degree of rotation to get to A"B"C"?
С
A
A
B
A
o degrees
90 degrees
180 degrees
270 degrees
Answer:
180 degrees
Step-by-step explanation:
if it was to be 270 degrees the the image should be formed opposite to triangle A'B'C'
If it was to be 360 degrees the image should be back to original triangle and if it was 90 degrees the triangle should be triangle A'B'C'
A project under consideration has a 10-year projected life. The initial investment for the project is estimated to have a mean of $10,000 and a standard deviation of $1,000. The annual receipts are independent, with each year’s expected return having a mean of $1,800 and a standard deviation of $200. MARR is 12 percent. Assuming that initial investment and annual receipts are independent and normally distributed, estimate the probability that the present worth is negative using NORM.INV function in excel.
This value represents the present worth below which the probability is 0.5, indicating a negative present worth.
To estimate the probability that the present worth is negative using the NORM.INV function in Excel,
we need to calculate the present worth of the project and then determine the corresponding probability using the normal distribution.
The present worth of the project can be calculated by finding the sum of the present values of the annual receipts over the 10-year period, minus the initial investment. The present value of each annual receipt can be calculated by discounting it back to the present using the minimum attractive rate of return (MARR).
Using the given information, the present value of the initial investment is $10,000. The present value of each annual receipt is calculated by dividing the expected return of $1,800 by \((1+MARR)^t\),
where t is the year. We then sum up these present values for each year.
We can use the NORM.INV function in Excel to estimate the probability of a negative present worth. The function requires the probability value, mean, and standard deviation as inputs.
Since we have a mean and standard deviation for the present worth,
we can calculate the corresponding probability of a negative present worth using NORM.INV.
This value represents the present worth below which the probability is 0.5. By using the NORM.INV function,
we can estimate the probability that the present worth is negative based on the given data and assumptions.
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which angle is vertically opposite to <CFD
Answer:
show more of the pict i can't tell what it is
The height of a trapezoid is 4 in. And its area is 48 in 2. One base of a trapezoid is 6 inches longer than the other base. What are the lengths of the bases? Complete the explanation of how you found your answer.
Answer:
a=9
b=15
Step-by-step explanation:
Well the area formula of a trapezoid is: \(\frac{a+b}{2} *h\)
\(\frac{a+b}{2} *4=48\)
Divide both sides by 4
\(\frac{a+b}{2} =12\)
Multiply both sides by 2
a+b=24
Now since one of the sides (b) is 6 inches longer than a, we get;
a+a+6=24
Subtract 6 from both sides
2a=18
Divide both sides by 2
a=9
b=9+6=15
the coordinates of t are given. the midpoint of ST is (5 -8) find the coordinates of point s
T(5,-15)
Answer:
use midpoint formula
(5,-1)
Adrian bought a car worth $12000 on 36 easy installments of $375. Answer the following questions. (1) How much total amount did Adrian pay in 36 months? Answer: Total payment A = $ (2) Identify the letters used in the simple interest formula I = Prt. I= $ P= $ and t years. (3) Find the rate of interest in percentage. Answer: r %. ASK YOUR TEACHER
3) since we don't have the information about the interest paid (I), we cannot determine the rate of interest at this time.
(1) To find the total amount Adrian paid in 36 months, we can multiply the monthly installment by the number of installments:
Total payment A = Monthly installment * Number of installments
= $375 * 36
= $13,500
Therefore, Adrian paid a total of $13,500 over the course of 36 months.
(2) In the simple interest formula I = Prt, the letters used represent the following variables:
I: Interest (the amount of interest paid)
P: Principal (the initial amount, or in this case, the car worth)
r: Rate of interest (expressed as a decimal)
t: Time (in years)
(3) To find the rate of interest in percentage, we need more information. The simple interest formula can be rearranged to solve for the rate of interest:
r = (I / Pt) * 100
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