Annie bought a brand new car for $32,000. The car is now worth $21,000.

Answer:

5020000000000.

Step-by-step explanation:

5.02×10^2 is in scientific notation so we must convert it to standard form getting that answer.

Answer:

a) below

b) log_35 (8) = x

c) x = 0.58487

Step-by-step explanation:

a) 35^x=8

apply the exponent rule

xln(35) = ln(8) → x = ln(8)/ln(35) → x = 3ln(2)/ln(35)

x = 0.58487

c) log_35 (8) = x

x = log_35 (8)

base form (Rewrite 8 in power)

x = log_35 (2^3)

log rule: log_a(x^b) = b*log_a(x)

log_35 (2^3) = 3log_35(2)

x = 3log_35(2)

x = 0.58487

Answer:

x = 31.3°

Step-by-step explanation:

\(cos (A) = \frac{b^{2} + c^{2} - a^{2} }{2bc} \)

here a = 8 ,  b = 11 , c = 15

using the formula:

cos(x) = (11² + 15² - 8²) / ( 2 * 11 * 15)

cos(x) = \(\frac{47}{55} \)

x = \(cos^{-1} (\frac{47}{55} )\)

x = 31.3°

Step by step solution is above

Answer:

5/2

Step-by-step explanation:

use formula

\(m = ( \frac{y2 - y1}{x2 - x1} )\)

\(m = ( \frac{4 - - 1}{2 - 0} )\)

\(m = ( \frac{5}{2} )\)

The x- and y-coordinates of the center of mass are; (20, 0)

The center of mass is the location where the sum of the relative position of the masses in a mass distribution is zero. It is the point where force can be applied on the distributed mass without causing a rotation of the system.

The mas of the steel plate = 800 g = 0.8 kg

The base length of the isosceles triangular plate = 20 cm = 0.2 m

The height of the isosceles triangular plate = 30 cm = 0.3 m

Considering a small strip of height, dx and width, I, we get

Area of small strip, dA = I·dx

Density of the plate for a unit thickness, ρ = M/A

Density of the small strip of mass dm = dm/dA

Considering the density of the plate as uniform, we get;

\(\displaystyle {\frac{dm}{dA} =\frac{M}{A}\)

Therefore;

\(\displaystyle {dm=\frac{M}{A}\times dA}\)

The area of the triangular plate, A = (1/2) × 0.2 m × 0.3 m = 0.03 m²

Mass of the plate, M = 0.8 kg

Therefore;

\(\displaystyle {dm=\frac{0.8}{0.03}\times I\cdot dx}\)

The width of the small strip, I, located at a distance x from the vertex of the triangular plate, using similar triangles, indicates;

\(\dfrac{I}{20} = \dfrac{x}{30}\)

\(I=20\times \dfrac{x}{30} = \dfrac{2}{3} \cdot x\)

Therefore;

\(\displaystyle {dm=\frac{0.8}{0.03}\times I\cdot dx} = \frac{0.8}{0.03}\times \dfrac{2}{3} \cdot x\cdot dx}\)

The center of mass, \(x_{cm}\), can be obtained with the formula; \(\displaystyle {x_{cm} = \dfrac{1}{M} \cdot \int\limits {x} \, dm }\)

Therefore; \(\displaystyle {x_{cm} = \dfrac{1}{0.8} \cdot \int\limits {x} \cdot \frac{0.8}{0.03} \cdot \frac{2}{3}\cdot x\, dx }\)

\(\displaystyle {x_{cm} = \dfrac{1}{0.8} \cdot \int\limits {x} \cdot \frac{0.8}{0.03} \cdot \frac{2}{3}\cdot x\, dx } = \dfrac{1}{0.8} \times \frac{0.8}{0.03} \times \frac{2}{3}\cdot \int\limits^3_0 {x^2} \, dx\)

\(\displaystyle {x_{cm} = \dfrac{1}{0.8} \times \frac{0.8}{0.03} \times \frac{2}{3}\cdot \int\limits^3_0 {x^2} \, dx = \frac{200}{9} \cdot \left[\frac{x^3}{3} \right]^{0.3}_0\)

\(\displaystyle {x_{cm} = \frac{200}{9} \cdot \left[\frac{x^3}{3} \right]^{0.3}_0=\frac{200}{9} \times \frac{0.027}{3} =0.2\)

The location of the x-coordinate center of mass, \(x_{cm}\) = 0.2 m = 20 cm from the vertex, which is the same location as the x-coordinate of the centroid of the plate of uniform density.

The plate is symmetrical about the x-axis, therefore, the y-coordinate of the center of mass is along the x-axis, which is \(y_{cm}\) = 0

The coordinate of the center of mass = (0.2, 0)

Part of the question requires the location of the coordinate of the center of mass of the triangular plate

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Answer:

-2

Step-by-step explanation:

Margin of error for 99% confidence interval is 0.0021

What is confidence interval?

he range of values that, should you repeat your experiment or resample the population in the same manner, you would anticipate your estimate to fall within a particular percentage of the time.

Main Body:

Given :

99% Confidence Interval for p

p = 0.24,n = 276000

Significance level = α = 1− confidence = 1 − 0.99 = 0.01

Critical z-value = zα/2 = z0.01/2 = z0.005 = 2.58 (closest value From z table)

Standard e

or of p : SE =

√p× (1 − p)n=√0.24 × 0.76276000

≈ 0.0008129

E = zα/2 ×√p× (1 − p)n

= 2.58 × 0.0008129 ≈ 0.002097

Hence ,Margin of Error or, E = 0.00210

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Answer:

No

Step-by-step explanation:

4.5 IS NOT A WHOLE NUMBER!

Answer:

YES 4.5 IS NATURAL NUMBER

Step-by-step explanation:

Answer:

y=1/4x-13

Step-by-step explanation:

use y=mx+b where 0 is the x value, -13 is the y value, and 1/4 is the m value

-13=0+b

put back into y=mx+b where m is slope and b is y-intercept

Answer:

y=1/4x-13

Step-by-step explanation:

The question is wanting you to put the information in the format of y=mx+b. To create the equation you tie in the y-intercept which is -13 and the slope. You put the y-intercept in place of "b" and put the slope in place if the "m".

Answer:

41.41

Step-by-step explanation:

cosA=6/8=3/4

I used a calculator

Answer:14.9606

Step-by-step explanation:

38 cm = 14.9606 inches

How much is one centimeter in inches?

One inch is equivalent to 2.54 centimeters, and one centimeter is equal to 0.393701 inches, according to the conversion between the two units.

Exactly how big is one inch?

A yard and a foot are equivalent to an inch. A metric inch is precisely 2.54 centimeters. One whole inch is made up of two half inches and four quarter inches.

What is a inch ?

The British imperial and American customary systems of measurement both use the inch as their standard unit of length (symbolised as in or ′′).

What is a centimeter ?

The International System of Units' centimeter (SI symbol cm), sometimes known as a centimeter (international spelling) or centimeter (American spelling), is a unit of length (SI)

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The conjectures can be disproven with counterexamples.

The first conjecture states that if f(n) = 0(g(n)), then g(n) = O(f(n)). However, this is not true in general. To disprove this, we can consider a counterexample where f(n) = n and g(n) = n^2. Here, f(n) is indeed O(g(n)), but g(n) is not O(f(n)), as g(n) grows faster than f(n).

The second conjecture suggests that if f(n) + g(n) = Theta(min(f(n), g(n))), then it holds true. However, this is not always the case. Counterexamples can be found by considering functions where f(n) and g(n) have different growth rates.

The third conjecture claims that if f(n) = 0(g(n)), then lg(f(n)) = O(lg(g(n))). However, this conjecture is also false. A counterexample can be constructed by taking f(n) = n and g(n) = n^2. While f(n) is indeed O(g(n)), lg(f(n)) is not O(lg(g(n))) as lg(g(n)) grows much faster than lg(f(n)).

The remaining conjectures can be similarly disproven with suitable counterexamples. It is important to note that disproving a conjecture requires finding just one counterexample that contradicts the statement.

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Answer:

h = V/lw

Step-by-step explanation:

We know the formula for the volume of a rectangular prism is V = lwh. We need to use this equation and solve for h by dividing lw on both sides.

V = lwh

V/lw = h

The values for f(1), f(2), f(3), f(4), and f(5) using the recursive formula f(n+1) = 3^(f(n)/3) are:

f(1) = 3, f(2) = 3, f(3) = 3, f(4) = 3, f(5) = 3.

To find the values of f(1), f(2), f(3), f(4), and f(5) for each given recursive definition, we can use the initial condition f(0) = 3 and the recursive formulas.

(a) f(n+1) = -2f(n):

Using the recursive formula, we can find the values as follows:

f(1) = -2f(0) = -2(3) = -6

f(2) = -2f(1) = -2(-6) = 12

f(3) = -2f(2) = -2(12) = -24

f(4) = -2f(3) = -2(-24) = 48

f(5) = -2f(4) = -2(48) = -96

So, the values for f(1), f(2), f(3), f(4), and f(5) using the recursive formula f(n+1) = -2f(n) are:

f(1) = -6, f(2) = 12, f(3) = -24, f(4) = 48, f(5) = -96.

(b) f(n+1) = 3f(n) + 7:

Using the recursive formula, we can find the values as follows:

f(1) = 3f(0) + 7 = 3(3) + 7 = 16

f(2) = 3f(1) + 7 = 3(16) + 7 = 55

f(3) = 3f(2) + 7 = 3(55) + 7 = 172

f(4) = 3f(3) + 7 = 3(172) + 7 = 523

f(5) = 3f(4) + 7 = 3(523) + 7 = 1576

So, the values for f(1), f(2), f(3), f(4), and f(5) using the recursive formula f(n+1) = 3f(n) + 7 are:

f(1) = 16, f(2) = 55, f(3) = 172, f(4) = 523, f(5) = 1576.

(c) f(n+1) = f(n)^2 - 2f(n) - 2:

Using the recursive formula, we can find the values as follows:

f(1) = f(0)^2 - 2f(0) - 2 = 3^2 - 2(3) - 2 = 1

f(2) = f(1)^2 - 2f(1) - 2 = 1^2 - 2(1) - 2 = -3

f(3) = f(2)^2 - 2f(2) - 2 = (-3)^2 - 2(-3) - 2 = 7

f(4) = f(3)^2 - 2f(3) - 2 = 7^2 - 2(7) - 2 = 41

f(5) = f(4)^2 - 2f(4) - 2 = 41^2 - 2(41) - 2 = 1601

So, the values for f(1), f(2), f(3), f(4), and f(

using the recursive formula f(n+1) = f(n)^2 - 2f(n) - 2 are:

f(1) = 1, f(2) = -3, f(3) = 7, f(4) = 41, f(5) = 1601.

(d) f(n+1) = 3^(f(n)/3):

Using the recursive formula, we can find the values as follows:

f(1) = 3^(f(0)/3) = 3^(3/3) = 3^1 = 3

f(2) = 3^(f(1)/3) = 3^(3/3) = 3^1 = 3

f(3) = 3^(f(2)/3) = 3^(3/3) = 3^1 = 3

f(4) = 3^(f(3)/3) = 3^(3/3) = 3^1 = 3

f(5) = 3^(f(4)/3) = 3^(3/3) = 3^1 = 3

So, the values for f(1), f(2), f(3), f(4), and f(5) using the recursive formula f(n+1) = 3^(f(n)/3) are:

f(1) = 3, f(2) = 3, f(3) = 3, f(4) = 3, f(5) = 3.

Note: In the case of (d), the recursive formula leads to the same value for all values of n.

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Answer:

(-4,-7)

Step-by-step explanation:

Use the online graphing calculator called Desmos. That's what I did. Just input the two equations and it'll show you the completed graph. I hope this help you:)

Reflection across the y = -x line is equivalent to a rotation of 180 degrees about the origin.

The coordinates of X(-4,-3) after reflecting across the y = -x line would be (3, 4)

The coordinates of M(-3,-2) after reflecting across the y = -x line would be (2, 3)

The coordinates of (-1,-5) after reflecting across the y = -x line would be (5,1)

So, after reflecting across the y = -x line, the coordinates of the points are flipped along the line x = y and they are moved to the opposite quadrant.

About 75% of the students' scores exceeded the score mentioned in the boxplot.

In a boxplot, the box represents the interquartile range (IQR), which contains the middle 50% of the data. The lower whisker extends to the minimum value within 1.5 times the IQR below the first quartile (Q1), and the upper whisker extends to the maximum value within 1.5 times the IQR above the third quartile (Q3).

Since the boxplot does not provide specific numerical values, we can infer that the mentioned score lies within the upper whisker, which represents the top 25% of the data. Therefore, about 75% of the students' scores exceeded this score.

It's important to note that without the actual values or specific percentiles, we can only estimate the percentage based on the visual representation of the boxplot. The exact percentage may vary depending on the scale and distribution of the data. To obtain a more precise estimate, additional information such as the quartiles or a histogram of the scores would be needed.

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Answer:

264 naira

Step-by-step explanation:

Given that:

Amount earned per year = 2460

Rate of interest paid : 10k per naira earned

Tax paid by messenger per year :

100k = 1 naira

10k = (100/10) = 0.1 naira

Hence 0.1 naira is paid as tax on every naira earned

Total amount paid on 2640 Naira :

Amount paid per naira * total amount earned

(0.1 * 2640) = 264 naira

Answer:

1400

Step-by-step explanation:

There is a flat fee involved, which is the y-intercept of the line.

The line eats the points:

(3, 435)

 and

(5, 625)  

the slope is 190/2 = 95

 B = y - mx = 435 - (95)(3)

                 = 435 - 285

                 =  150

The linear function is:

y = 95x + 150

So for x=2, it will cost

95(2) + 150 = 190 + 150 = 340

435 + 625 + 340 =  1400

The total cost to rent the boat for three days is $1400.

Given that, on Saturday, he rented a pontoon boat for three hours and paid $435.

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The cost for the rented a pontoon boat for five hours is 435+190 = 625

The coordinate points are (3, 435) and(5, 625)  

The slope is m = (625-435)/(5-3)

= 190/2 = 95

Now, b = y - mx = 435 - (95)(3)

= 435 - 285 =  150

So, the linear function is y = 95x + 150

So for x=2, it will cost

95(2) + 150 = 190 + 150 = 340

Total cost = 435 + 625 + 340 = 1400

Therefore, the total cost to rent the boat for three days is $1400.

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The correct option a. may.The data shown in the may histogram is more centered around a high peak.

A graph called a histogram is used to show the frequency distribution of a small number of data points for a single variable.

For the given two histograms,

May has the peak value for the frequency of day at 14.

July has the peak value for the frequency of day at 10.

Thus, The data shown in the may histogram is more centered around a high peak.

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Complete question-

which data set is more centered around a high peak??

a. may

b. july

c. neither

d. both

The diagram for the question is shown.

Sample size and the confidence level width have an inverse relationship. As the sample size increases, the confidence level width decreases.

When determining a confidence interval for a population parameter, such as the mean or proportion, a larger sample size provides more information about the population. This increased information leads to a narrower confidence interval.

The confidence level width is influenced by two factors: the sample standard deviation (or the variability of the data) and the critical value associated with the desired confidence level. As the sample size increases, the sample standard deviation becomes a more accurate estimate of the population standard deviation. This reduces the variability and leads to a narrower confidence interval.

A larger sample size leads to a decrease in the confidence level width, providing a more precise estimate of the population parameter with a higher level of confidence.

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Answer:

153/8

Step-by-step explanation:

The inverse transform of the given function \(F(z)\) is found using the partial fractions expansion method.

To find the inverse transform of \(F(z)\), we first factorize the denominator into its irreducible quadratic factors. In this case, the denominator is \((z-0.1)(z^2+z+0.5)\).

Next, we perform partial fractions expansion by expressing \(F(z)\) as the sum of simpler fractions with denominators corresponding to the irreducible factors. We assume the form of the partial fractions to be \(F(z) = \frac{A}{z-0.1} + \frac{Bz+C}{z^2+z+0.5}\).

By equating the numerator of the original function to the sum of the numerators of the partial fractions, we can solve for the unknown constants A, B, and C.

Once the constants are determined, the inverse transform of each partial fraction can be found using table lookups or the inverse transform formulas.

Finally, the inverse transform of \(F(z)\) is the sum of the inverse transforms of the partial fractions, resulting in the expression in the time domain.

It's important to note that this summary provides a general overview of the partial fractions expansion method for finding inverse transforms. In practice, the calculations may involve more complex algebraic manipulations to determine the constants and find the inverse transforms.

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According to the question we have the solution of the  given differential equation initial value problem is: g(x) = (3/4)x^4 - x + 9/4 .

To solve the given initial value problem, we need to integrate both sides of the differential equation. We have:

g'(x) = 3x(x^2 - 1/3)

Integrating both sides with respect to x, we get:

g(x) = ∫[3x(x^2 - 1/3)] dx

g(x) = ∫[3x^3 - 1] dx

g(x) = (3/4)x^4 - x + C

where C is the constant of integration.

To find the value of C, we use the initial condition g(1) = 2. Substituting x = 1 and g(x) = 2 in the above equation, we get:

2 = (3/4)1^4 - 1 + C

2 = 3/4 - 1 + C

C = 9/4

Therefore, the solution of the given initial value problem is:

g(x) = (3/4)x^4 - x + 9/4

In more than 100 words, we can say that the given initial value problem is a first-order differential equation, which can be solved by integrating both sides of the equation. The resulting function is a family of solutions that contain a constant of integration. To find the specific solution that satisfies the initial condition, we use the given value of g(1) = 2 to determine the constant of integration. The resulting solution is unique and satisfies the given differential equation as well as the initial condition.

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Answer:

k=-13/5

Step-by-step explanation:

y=kx+4

-9=k(5)+4

-9=5k+4

-9-4=5k

5k=-13

k=-13/5

On putting the values of the point in the equation of line, the value of \(k\) is \(-\frac{13}{5}\).

When a line passes through a point, the point satisfies the equation of the line.

The line \(y = kx +4\) goes through the point \((5, -9)\).

So, \((5,-9)\) must satisfy the equation of the line.

Put \(x=5\) and \(y=-9\) in the equation \(y = kx +4\).

\(-9=k(5)+4\)

\(-9=5k+4\)

\(-9-4=5k\)

\(-13=5k\)

\(-\frac{13}{5}=k\)

So, the value of \(k\) is \(-\frac{13}{5}\).

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Answer:

Less than symbol (<)

Step-by-step explanation:

For example:

A set of numbers that are in ascending order

1<2<3<4<5<6<7<8<9<10

The less than symbol is used to denote the increasing order.

Hope this helps

Answer:

Infinitely many solutions

Step-by-step explanation:

2(3x+4)=6x+8

6x+8=6x+8

Therefore, there are infinitely many solutions because both sides will always be equal to each other since they have the same slope and y-intercept.

Answer:

\(\left(a+4\right)\left(a-5\right)\)

Step-by-step explanation:

Break the expression into groups.

=(a^2+4a)+(−5a−20)

Factor out a from a2+4a:     a(a+4)

Factor out −5 from −5a−20:     −5(a+4)

=a(a+4)−5(a+4)

Answer:

The graph of such system of equations should show two lines with different slopes, and therefore intersecting in one unique point.

Step-by-step explanation:

In order to have a system of linear equations in two variables give as answer only one solution (that is a unique point on the plane), the graph of such equations should be two lines with different slopes, and therefore intersecting in one unique point.

Graphs with parallel lines will not be  correct since there is no intersection, and therefore no answer to such systems.

Graphs that show lines that overlap are not an answer either, since in such case there are infinite number of solutions (all the points on each line)

Answer:D

Step-by-step explanation: