The equation representing the future value of the collection is given by V=390(1.03)³ as the value appreciates by 3%.
When a value appreciates at a certain percentage means the value of the collection increases by that percentage each year.
The equation that represents such an appreciation is in the form of an exponential equation.
The general equation for calculating future value with appreciation is:
\(V = P (1 + r)^n\) where
V = Future value
P = Present value
r = appreciation rate
n = number of years
Given P = $390 , r= 3%=0.03 , n = 3
Now we substitute the given values in the equation to get:
V=390(1+0.03)³
or, V= 390(1.03)³
or, V= 426.16 dollars approximately .
Hence the required equation is V= 390(1.03)³ .
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Can someone help me with 5, 8 and 9?
5. b1= 8, b2= 11+9=20, h= 15, A= 210
8. b1= 4, b2= 10, h= 5.2, A= 36.4
9. b1= 7, b2= 13, h= 4.2, A= 42
the producer of a certain bottling equipment claims that the variance of all its filled bottles is 0.027 or less. a sample of 30 bottles showed a standard deviation of 0.2. calculate the p-value of the test to four decimal places.
The p-value of the test of the producer of certain bottling equipment claims that the variance of all its filled bottles is 0.027 or less. a sample of 30 bottles showed a standard deviation of 0.2. is between 0.025 and 0.05.
What does the p-value tell you?The likelihood that the null hypothesis is correct is expressed by the p-value. The likelihood that the alternative hypothesis is correct is (1 - p-value). A little p-value indicates that the findings are repeatable. A big effect or a significant theoretical, clinical, or practical significance is indicated by a low p-value.
How is the p-value calculated?The sample data, test type, and sampling distribution of the test statistic under the null hypothesis are used to determine the p-value (lower-tailed test, upper-tailed test, or two-sided test). The formula for calculating the p-value for a lower-tailed test is: p-value = P(TS ts | H 0 is true) = cdf (ts)
The p-value of the test of the producer of certain bottling equipment claims that the variance of all its filled bottles is 0.027 or less. a sample of 30 bottles showed a standard deviation of 0.2. is between 0.025 and 0.05.
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writing an equation in Point-Slope Form
Write the point-slope form of the equation for a line that passes through (6, -1) with a slope of 2.
Answer:
y+1 = 2(x-6)
Step-by-step explanation:
We have a point (6,-1) and a slope m=2
The point slope form of a line is
y-y1 = m(x-x1)
y- -1 = 2(x-6)
y+1 = 2(x-6)
Answer: y - (-1) = 2(x-6) which is basically y + 1 = 2(x - 6)
Step-by-step explanation:
Disregard my explanation, its in the wrong form
Point-slope form is y = mx + b
They gave us m, 2. And they gave us the coords, (6, -1)
All you have to do is plug this info in to get:
\(-1=2(6)+b\\-1=12+b\\b=-13\)
Which of the following types of distributions use t-values to establish confidence intervals? Standard normal distribution Log.normal distribution ot-distribution O Poisson distribution
The t-distribution is the distribution that uses t-values to establish confidence intervals.t-distribution:
The t-distribution is a probability distribution that is widely used in hypothesis testing and confidence interval estimation. It's also known as the Student's t-distribution, and it's a variation of the normal distribution with heavier tails, which is ideal for working with small samples, low-variance populations, or unknown population variances.The t-distribution is commonly used in hypothesis testing to compare two sample means when the population standard deviation is unknown. When calculating confidence intervals for population means or differences between population means, the t-distribution is also used. The t-distribution is used in statistics when the sample size is small (n < 30) and the population standard deviation is unknown.
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pls help quickly!! :(
what is the surface area of the right cone below?
Answer:
B.
Step-by-step explanation:
Answer:
D, 143.
Step by step explanation:
in an analysis of variance, differences caused by treatment effects contribute to which of the following variances? a. both between-treatments variance and within-treatments variance b. between-treatments variance but not within-treatments variance c. within-treatments variance but not between-treatments variance d. neither between-treatments variance nor within-treatments variance a. using multiple t tests increases the risk of a type i error. b. using multiple t tests increases the risk of a type ii error. c. the analysis of variance is more likely to detect statistical significance. d. there is no advantage to using an analysis of variance instead of multiple t tests. a. there are no differences between any of the population means. b. at least one of the three population means is different from another population mean. c. all three of the population means are different from each other. d. one population mean is different from one of the other population means, but not the other population mean. a. r2
The correct answer is option B. In an analysis of variance, differences caused by treatment effects contribute to both between-treatments variance and within-treatments variance. This is because the overall variance in the data can be attributed to both differences between the treatment groups (between-treatments variance) and differences within each treatment group (within-treatments variance).
Using multiple t tests increases the risk of a type I error, which is rejecting the null hypothesis when it is actually true. This is because the more tests that are run, the more likely it is that one will result in a false positive. On the other hand, the analysis of variance is more likely to detect statistical significance because it takes into account the overall variance in the data and can determine if the differences between groups are larger than would be expected by chance alone.
In a three-group comparison, at least one of the three population means is different from another population mean. This is the minimum requirement for there to be a significant difference between the groups. However, it is also possible for all three of the population means to be different from each other.
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What is the answer to 6x-7=4x5
Answer:
x=6
Step-by-step explanation:
6x-7=4x+5
-4x. -4x
2x-7=5
+7. +7
2x=12
×=6
z − (-12) = 15
Enter an addition expression that completes the equation below:
z = _______________
Write your answer in the following format:
1+2
with no spaces.
z+12=15
Answer:
z=3
Step-by-step explanation:
z-(-12)=15
z+12=15
z=15-12
z=3
HOPE IT HELPS :)
joes dad weighs 140 pounds more than joe. their combined is 336 pounds. how much does his dad weigh?
Answer: 238 lbs
Step-by-step explanation:
x = joe's weight
y = joe's dad's weight
x + y = 336
y = x +140
Substitute for y
x + x + 140 = 336
2x + 140 =336
2x = 196
x = 98
Joe weighs 98 lbs
Now, plug that into Joe's dad's weight equation
y = 98 + 140
y = 238
Joe's dad weighs 238 lbs
what is outlier math definition
Answer:
In statistics, an outlier is a data point that differs significantly from other observations.
Step-by-step explanation:
solve for x
i made it 25 pts btw
Answer:
I'm going to say this at random it is eight 8.
Step-by-step explanation:
(WILL GIVE BRAINLIEST) Describe how you would simplify the given expression.
Answer:
Simplify inside the parentheses by dividing coefficients, subtracting the exponents on like bases, and raising the resulting expression to the –3 power. Then, write bases with positive exponents.
Raise the numerator and denominator to the –3 power. Then, using the power of a power property, multiply the exponents. Divide the coefficients and subtract the exponents on like bases, then write with positive exponents.
Step-by-step explanation:
Answer:Simplify inside the parentheses by dividing coefficients, subtracting the exponents on like bases, and raising the resulting expression to the –3 power. Then, write bases with positive exponents.
Raise the numerator and denominator to the –3 power. Then, using the power of a power property, multiply the exponents. Divide the coefficients and subtract the exponents on like bases, then write with positive exponents.
Step-by-step explanation:
correct on edg.... Good Luck!!!
what are the solutions of x2-4x+5=0
please help!!
Answer:
The solutions to the quadratic equation are:
\(x=i+2,\:x=-i+2\)
Step-by-step explanation:
Given the equation
\(x^2-4x+5=0\)solving the equation
\(x^2-4x+5=0\)
subtract 5 from both sides
\(x^2-4x+5-5=0-5\)
\(x^2-4x=-5\)
\(\mathrm{Add\:}\left(-2\right)^2\mathrm{\:to\:both\:sides}\)
\(x^2-4x+\left(-2\right)^2=-5+\left(-2\right)^2\)
\(\left(x-2\right)^2=-1\)
\(\mathrm{For\:}f^2\left(x\right)=a\mathrm{\:the\:solutions\:are\:}f\left(x\right)=\sqrt{a},\:-\sqrt{a}\)
solving
\(x-2=\sqrt{-1}\)
As the imaginary rule is given by
\(\:\sqrt{-1}=i\)
so
\(x-2=i\)
\(x=i+2\)
solving
\(x-2=-\sqrt{-1}\)
\(x-2=-i\) ∵ \(\:\sqrt{-1}=i\)
\(x=-i+2\)
Therefore, the solutions to the quadratic equation are:
\(x=i+2,\:x=-i+2\)
3. Let f: R+R be defined by f(x) = 3+and using the definition of limit, prove that f has a limit at 2 4. Let f:R? → Rºbe defined by f(x) = and using the definition of limit, prove that f has a limit at 0,0). 5. Let f:R? → Rºbe defined by f(x) and using the definition of limit, prove that I has a limit at (0,0).
We have to prove that when we approach to (0, 0) the output of the function f(x) = 3 + 4x2 tends to the same output limit. For this, we can take three sequences of the x-coordinate which are {an}= (-1/nit) (n∈N+), {1} = (0, nit) (n∈N+) and {c} = 1/nit) (n∈N+).
Let f:R? → Rºbe defined by f(x) = 3 + x2 and using the definition of limit,
prove that f has a limit at (2,4).
Proof:
We want to show that limx→2f(x) = 4. This means that for every ε > 0, there exists a δ > 0 such that if 0 < |x–2| < δ, then |f(x)–4| < ε.
Let ε > 0 be given. Choose δ = min{ε, 2}.
Now, let 0 < |x–2| < δ. Then, |x–2| < δ ≤ 2. This implies that |x| < 4 and thus 0 < |x|2 < 16. Now,
|f(x)–4| = |3+x2–4| = |x2–1|= |x||x| = |x2| = |x|2 < 16 < ε.
Hence, for any given ε > 0, there exists a δ > 0 such that 0 < |x–2| < δ implies |f(x)–4| < ε. Therefore, limx→2f(x) = 4.
So, from the above calculations, it can be seen that every time approaches the point (0, 0), the values of the function tends to the same point which is 3 and so this concludes that the f(x) has a limit at (0, 0) and the limit is 3.
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Tina's family buys 4 cheeseburgers and 3 orders of fries for $7. 25. Louise's family buys 6 cheeseburgers and 3
orders of tries for $9. 75. What is the total cost of 1 cheeseburger and 1 order of fries?
Answer:
$2
Step-by-step explanation:
A burger is $1.25 and fries are .75c
Determine the equation of the circle with center (-6,0)(−6,0) containing the point (-12,-\sqrt{13})(−12,− 13 ).
The equation of the circle with center (-6,0) and containing the point (-12,-√13) is: \(x^2 + 12x + y^2 = 13\)
What is equation of a circle?
The equation of a circle with center (h, k) and radius r is given by:
\((x - h)^2 + (y - k)^2 = r^2\) where (x, y) is any point on the circle. This equation represents all points (x, y) that are at a fixed distance r from the center (h, k).
The distance between the center and the given point is the radius:
\(r = \sqrt{[(x2 - x1)^2 + (y2 - y1)^2}\\r = \sqrt{ [(-12 - (-6))^2 + (-√13 - 0)^2}\\r = \sqrt{36 + 13}\\r = \sqrt{49}\\r = 7\)
Substituting the center and radius into the equation of the circle, we get:
(x + 6)^2 + y^2 = 7^2
Simplifying, we get:
\(x^2 + 12x + 36 + y^2 = 49\)
Hence, The equation of the circle with center (-6,0) and containing the point (-12,-√13) is: \(x^2 + 12x + y^2 = 13\)
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help !!!!!!!!!!!!!!!! plz
Answer:
5 > n + 10
8 x 7 < n
n/3 + 1
6 x 8 - 10 < n
n - 1 x n
n x -n + 7
(q12) What is the value of the definite integral
The value of the definite integral in this problem is given as follows:
B. 16.
How to solve the definite integral?The definite integral in the context of this problem is given as follows:
\(\int_0^2 (x^3 + 6) dx\)
Applying the power of x integral rule, the result of the integral is given as follows:
\(\frac{x^4}{4} + 6x\)
At x = 2, the numeric value of the integral is given as follows:
16/4 + 6(2) = 4 + 12 = 16.
At x = 0, the numeric value of the integral is given as follows:
0/4 + 6(0) = 0.
Applying the Fundamental Theorem of Calculus, the result of the integral is given as follows:
16 - 0 = 16.
(The Fundamental Theorem of Calculus states that the definite integral is the subtraction of the result of the integral at the upper bound by the result of the interval at the lower bound).
Hence option B is the correct option in the context of this problem.
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aye can someone help me i am confused??
Answer:
in the first one, the rule is y=2x+1
the second rule is y=x/2+1
sorry iont about the 3rd one
Step-by-step explanation:
D
48°
C
61°
A
B
Find the measure of ZABD
Answer:
119
Step-by-step explanation:
Angle ABD and angle DBC are supplementary so their sum is equal to 180
therefore to find the measure of ABD we subtract 61 from 180
<ABD = 180 - 61
<ABD = 119
Solve the differential equation.
dy+4ydx=9e−⁴ˣ dx
y=
The solution to the given differential equation is:
y = (9e^(-4x) - Ce^(-1/36 * e^(-4x))) / 4
To solve the given differential equation:
dy + 4y dx = 9e^(-4x) dx
We can rearrange the equation to separate the variables y and x:
dy = (9e^(-4x) - 4y) dx
Now, we can divide both sides of the equation by (9e^(-4x) - 4y) to isolate the variables:
dy / (9e^(-4x) - 4y) = dx
This equation is now in a form that can be solved using separation of variables. We'll proceed with integrating both sides:
∫(1 / (9e^(-4x) - 4y)) dy = ∫1 dx
The integral on the left side requires a substitution. Let's substitute u = 9e^(-4x) - 4y:
du = -36e^(-4x) dx
Rearranging, we have
dx = -du / (36e^(-4x))
Substituting back into the integral:
∫(1 / u) dy = ∫(-du / (36e^(-4x)))
Integrating both sides:
ln|u| = (-1/36) ∫e^(-4x) du
ln|u| = (-1/36) ∫e^(-4x) du = (-1/36) ∫e^t dt, where t = -4x
ln|u| = (-1/36) ∫e^t dt = (-1/36) e^t + C1
Substituting back u = 9e^(-4x) - 4y:
ln|9e^(-4x) - 4y| = (-1/36) e^(-4x) + C1
Taking the exponential of both sides:
9e^(-4x) - 4y = e^(C1) * e^(-1/36 * e^(-4x))
We can simplify e^(C1) as another constant C:
9e^(-4x) - 4y = Ce^(-1/36 * e^(-4x))
Now, we can solve for y by rearranging the equation:
4y = 9e^(-4x) - Ce^(-1/36 * e^(-4x))
y = (9e^(-4x) - Ce^(-1/36 * e^(-4x))) / 4
Therefore, the solution to the given differential equation is:
y = (9e^(-4x) - Ce^(-1/36 * e^(-4x))) / 4
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Ronald bought a wooden board that measured 96 inches long. He will cut the board into pieces of different lengths. Ronald cut one piece from the board that measured 34 1/4 inches long. He cut another piece from the board that measured 10 3/4 inches long. He cut the remainder of the board into four pieces of equal length. How much wood in length did Ronald have left after his first two cuts?
After cutting one piece from the board that measured 34 1/4 inches long and another piece from the board that measured 10 3/4 inches long, he had 50 inches of wood left.
Let the length of each of the four pieces that Ronald cut from the remaining board be x.
Therefore, the total length of the remaining board is 4x inches.
We have:34 1/4 inches + 10 3/4 inches = 45 inches
This implies that the first two cuts made by Ronald took 45 inches off the original 96-inch long board. Thus, there was only 51 inches left to be cut into 4 equal pieces. The equation to represent this is:4x = 51 inches
To find the length of each of the four equal pieces, we need to divide the total length of the remaining board by the number of pieces of wood to be cut, i.e., 4. Thus, we have:4x = 51 inches
Divide both sides by 4:x = 51/4 inches
Therefore, each of the four equal pieces is 12 3/4 inches long.Thus, the total length of the four pieces cut is:4 × (12 3/4) inches= 51 inches
Thus, after cutting a piece of 34 1/4 inches and another piece of 10 3/4 inches from the 96 inches wooden board, Ronald had 50 inches of wood left.
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A large group of students took a test in Physics and the final grades have a mean of 70 and a standard deviation of 10. If we can approximate the distribution of these grades by a normal distribution, between what two scores of the test in the middle 95%?
Answer:
The scores are between 50 and 90
Step-by-step explanation:
When we say middle 95%, we means that this value falls between 2 standard deviations of the mean i.e
μ ± 2σ
Hence,
mean of 70 and a standard deviation of 10
μ ± 2σ
μ - 2σ
70 - (2 × 10)
= 70 - 20
= 50
μ + 2σ
= 70 + (2 × 10)
= 70 + 20
= 90
name a point that is sqrt(2)away from (-1 5)
The point which is √2 distance away from the point (-1, 5) is (-1, 5 - √2).
In order to find a point that is √2 away from (-1, 5), we need to find a point that is at a distance of √2 from (-1, 5). Let the point we need to find be (x, y),
Using the distance formula, we can set up the following equation:
√[(x - (-1))² + (y - 5)²] = √2,
Simplifying this equation,
We get,
(x + 1)² + (y - 5)² = 2,
This equation represents a circle with center (-1, 5) and radius √2.
So, one point that satisfies this equation is (-1, 5 - √2), which is √2 away from (-1, 5).
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can someone pls help
The required area of the parallelogram and pentagon is 91 unit² and 75 unit².
What is surface area?The surface area of any shape is the area of the shape that is faced or the Surface area is the amount of area covering the exterior of a 3D shape.
A parallelogram in is shown in figure 1 with the dimensions height = 7 and base = 13,
Area of the parallelogram = 13 × 7 = 91 unit²
Now,
A pentagon is shown in figure 2,
Area of the pentagon = 5 [1/2 × height × side]
= 5 [1/2 × 5 × 6]
= 75 suqare units.
Thus, the required area of the parallelogram and pentagon is 91 unit² and 75 unit².
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For the following exercises, evaluate the function f at the values f(−2), f(−1), f(0), f(1), and f(2)
70. f(x) = 8x2 − 7x + 3
Answer:
See below. I assume that (x) = 8x2 - 7x + 3 is really (x) = 8x^2 - 7x + 3
Step-by-step explanation:
Substitute the value of x given in f(x) into the equation f(x) = 8x^2 - 7x + 3
For example, f(0) would be f(0) = 8(0)^2 - 7(0) + 3. f(0) = 3
f(-2) would be f(-2) = 8(-2)^2 - 7(-2) + 3.
= 8*4 + 14 +3
= 32 + 17 therefore f(-2) = 49
x f(x)
-2 49
-1 18
0 3
1 4
2 21
help help help help help me
What grade is that?
Step-by-step explanation:
find the sum,difference,product,or quotient
Answer:
23/16, 1 7/16
Step-by-step explanation-
Add the fractions.
11/16 + 3/4 = 23/16.
It can be 23/16.
Or, if you want it simplified-
23/16 simplified is 1 7/16.
Answer and Step-by-step explanation:
Sum:
1. Convert 3/4 to have a 16 in the denominator
2. 3/4 * 4/4 = 12/16 Multiply
3. 11/16 + 12/16 = 23/16 Add
Subtraction:
1. Convert 3/4 to have a 16 in the denominator
2. 3/4 * 4/4 = 12/16 Multiply
3. 11/16 - 12/16 = - 1/16 Subtract
Multiplication:
1. 11/16 * 3/4 = 33/64 Multiply
Division
1. 11/16 / 3/4 Divide
2. Multiply by the reciprocal of 3/4
3. 11/16 * 4/3 = 11/12 Multiply
What is the percent of $460 is $414
Answer:90
Step-by-step explanation:
Consider an activity with these estimates for optimistic, most likely, and pessimistic time: 11, 21, 35 . Find the mean value of the activity time. (Please provide answer accurate to two decimal place
the main answer is that the mean value of the activity time is 21.67. This is calculated using the formula (optimistic + 4 * most likely + pessimistic) / 6.
To find the mean value of the activity time, we can use the three estimates provided: optimistic, most likely, and pessimistic time.
1. The optimistic time is the shortest possible time for completing the activity, which is 11 units.
2. The most likely time is the time that is most likely to be taken to complete the activity, which is 21 units.
3. The pessimistic time is the longest possible time for completing the activity, which is 35 units.
To calculate the mean value, we can use the following formula:
Mean value = (optimistic + 4 * most likely + pessimistic) / 6
Substituting the given values, we get:
Mean value = (11 + 4 * 21 + 35) / 6
Calculating the numerator first:
11 + 4 * 21 + 35 = 11 + 84 + 35 = 130
Now, we can calculate the mean value:
Mean value = 130 / 6
Dividing 130 by 6, we get:
Mean value = 21.67 (rounded to two decimal places)
Therefore, the mean value of the activity time is 21.67.
the main answer is that the mean value of the activity time is 21.67. This is calculated using the formula (optimistic + 4 * most likely + pessimistic) / 6.
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