IS MY ANSWER CORRECT ?? ASA IS THE WRONG ANSWER BTW

Answer:

The value of k is 0.149.

Step-by-step explanation:

The complete question is:

In 2004, an art collector paid $84,275,000 for a particular painting. The same painting sold for $27,000 in 1950. Complete part (a) through (d)? (a) Find exponential growth rate k, to three decimal places, and determine the exponential growth function V, for which V(t) is the painting’s value, in dollars, t years after 1950.

Solution:

The exponential growth function can be expressed as follows:

[tex]y=a\cdot e^{kt}[/tex]

y = Final value after t years

a = initial value

It is provided that:

y = $84,275,000

a = $27,000

The value of t from 1950 to 2004 is, t = 54

Compute the value of k as follows:

[tex]y=a\cdot e^{kt}[/tex]

[tex]84,275,000=27,000\times e^{54k}\\\\e^{54k}=\frac{84275000}{27000}\\\\54k=\ln (\frac{84275}{27})\\\\k=\frac{1}{54}\times \ln (\frac{84275}{27})\\\\k=0.149[/tex]

Thus, the value of k is 0.149.

Answer: I am pretty sure its C i hope this helps :D

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

6.61 mph

Step-by-step explanation:

Speed of current; c = 2 mph

Total time to travel upstream and back; t = t1 + t2 = 4 hours

Let x represent speed of the boat in still water

Then the actual speed of the boat when going upstream is x - 2, and the actual speed when going downstream downstream is x + 2.

We know that; distance = speed x time, Thus;

For the upstream trip;

12 = (x - 2)t1

t1 = 12/(x - 2)

For the downstream trip;

12 = (x + 2)t2

t2 = 12/(x +2)

Adding both equations, we have;

t1 + t2 = (12/(x - 2)) + (12/(x +2))

4 = (12/(x - 2)) + (12/(x +2))

Multiply through by (x - 2)(x + 2)

4(x - 2)(x + 2) = 12(x + 2) + 12(x - 2)

4x²- 16 = 12x + 24 + 12x - 24

4x² - 16 = 24x

4x² - 24x - 16 = 0

Using quadratic formula, we have;

x ≈ 6.61 mph

Answer:

[tex]d=\sqrt{149}\approx12.21[/tex]

Step-by-step explanation:

To find the distance between any two points, we can use the distance formula:

[tex]d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2[/tex]

We have the two points (-1, 7) and (-8, -3).

Let (-1, 7) be (x₁, y₁) and let (-8, -3) be (x₂, y₂). Substitute:

[tex]d=\sqrt{(-8-(-1))^2+(-3-7)^2}[/tex]

Evaluate:

[tex]d=\sqrt{(-8+1)^2+(-10)^2}[/tex]

Evaluate:

[tex]d=\sqrt{(-7)^2+(-10)^2}[/tex]

Square:

[tex]d=\sqrt{49+100}[/tex]

Add:

[tex]d=\sqrt{149}\approx12.21[/tex]

This cannot be simplified. Hence, the distance between (-1, 7) and (-8, -3) is √(149) or approximately 12.21 units.

Answer:

Twelve fifty thousand ninety nine

Step-by-step explanation:

:))))))

Answer:

√10/10

Step-by-step explanation:

Multiply the numerator and denominator by the conjugate.  

Hope this helps!! Please consider marking brainliest! Have a good one!!

Answer:

√10 / 10

Step-by-step explanation:

1/√10

To rationalize the denominator we need to get rid of any √ in the denominator. we do this by multiplying both sides by the square root:

1/√10 * √10/√10 = √10 / 10

Answer:

12.5

Step-by-step explanation:

Answer: 52

Step-by-step explanation: use the calculator lol

Answer:

52

Step-by-step explanation:

Answer:

True

Step-by-step explanation:

Answer: 64

Step-by-step explanation:

Answer:

0.44444444

Step-by-step explanation:

Answer:

the decimal expansion of 4/9 = 0

Step-by-step explanation:

Answer:

[tex]\frac{8^x}{2^y} 2y=2x^{12}[/tex]

Step-by-step explanation:

Since the numerator and denominator have a common base, this expression can be rewritten as 2(3x−y).

substitute 12 for the exponent, 3x−y and you will get A

Answer:

The answer is A [tex]2^{12}[/tex]

Step-by-step explanation:

Since 2 and 8 are both powers of 2, substituting 23 for 8 in the numerator of  

[tex]\frac{8x}{2y}[/tex]

gives you

[tex]\frac{8x}{2y} 2y=2x^{12}[/tex]

Answer:

  3x + 4y = 8

Step-by-step explanation:

Slope intercept form:                 Standard form:

  y = mx + b                                    Ax + By = C

  y = -3/4x + 2                                 y = -3/4x + 2             add 3/4x to both sides

                                                        3/4x + y = 2              multiply by 4

                                                        3x + 4y = 8

Answer:

The vector is [tex]\vec r = \left(\frac{6}{7},\frac{4}{7},-\frac{12}{7}\right)[/tex].

Step-by-step explanation:

We can determine the equivalent vector ([tex]\vec r[/tex]), dimensionless, by means of the following formula:

[tex]\vec r = \frac{\vec u}{\|\vec u\|} \cdot \|\vec r\|[/tex] (1)

Where:

[tex]\vec u[/tex] - Original vector, dimensionless.

[tex]\|\vec u\|[/tex] - Norm of the original vector, dimensionless.

[tex]\|\vec r\|[/tex] - Norm of the new vector, dimensionless.

The norm of the original vector is determined by the following definition:

[tex]\|\vec u\| = \sqrt{\vec u\,\bullet \,\vec u}[/tex] (2)

If we know that [tex]\vec u = (3, 2, -6)[/tex], then the norm of the original vector is:

[tex]\|\vec u\| = \sqrt{(3)\cdot (3)+(2)\cdot (2)+(-6)\cdot (-6)}[/tex]

[tex]\|\vec u\| = 7[/tex]

If we know that [tex]\|\vec r\| = 2[/tex], then the new vector is:

[tex]\vec r = \frac{2}{7}\cdot (3,2,-6)[/tex]

[tex]\vec r = \left(\frac{6}{7},\frac{4}{7},-\frac{12}{7}\right)[/tex]

The vector is [tex]\vec r = \left(\frac{6}{7},\frac{4}{7},-\frac{12}{7}\right)[/tex].

Answer:

See Explanation (Incomplete Question)

Step-by-step explanation:

The question is incomplete as the distance of the Green tail is not given.

Given

[tex]Teams = 4[/tex]

Required

Determine the distance covered by each

Since each team would cover the same amount of distance, the distance covered by each is the total distance divided by 4.

In other words,

[tex]Each = \frac{Total\ Distance}{4}[/tex]

Assume the total distance of the green tail is 9 miles, the distance by each would be:

[tex]Each = \frac{9}{4}[/tex]

[tex]Each = 2.25\ miles[/tex]

Answer:

[tex]Average = 43.29[/tex]

Step-by-step explanation:

Given

Time: 44.64,43.45,42.79 and 42.28

Required

Determine the average time

Average or mean is calculated as thus;

[tex]Mean = \frac{\sum x}{n}[/tex]

Where

[tex]\sum x[/tex] = sum of observation

n = number of observation = 4

[tex]Average = \frac{44.64 + 43.45 + 42.79 + 42.28}{4}[/tex]

[tex]Average = \frac{173.16}{4}[/tex]

[tex]Average = 43.29[/tex]

Hence, the average time is 43.29

Answer:

30 degrees

Step-by-step explanation:

Brainliest me

Answer:

40

AB=AOB÷2

and AB=ACB

so AB= 80÷2

AB=40

Answer:

the last one yw :)

Step-by-step explanation:

Answer:

z-1/-3

Step-by-step explanation:

z-1=-3a

z-1/-3=a

Answer:

600 is the answer

Step-by-step explanation:

I literally just took the test! Hope dis helps.

Answer:

600

Step-by-step explanation:

I took this test on USA test prep and got this question it correct

Answer:

B

Step-by-step explanation:

3 1/5 x 7/1

(3 x 5) + 1 = 16/5

16/5 x 7/1 = 112/5.

112 ÷ 5 = 22 2/5

so its B.

Answer:

22 2/5, twenty two and two fifths, B.

Step-by-step explanation:

7 * 3 1/5

To make it simpler, convert 3 1/5 into a mixed number.

3 1/5 = 15/5 + 1/5 = 16/5

Now, it's 7 * 16/5

Next, to prevent confusion, convert 7 to a mixed fraction as well.

7 = 7/1 (also known as a rational number.)

now it's 7/1 * 16/5

Simply multiply 7 * 16 and 1 * 5, which results in

112/5

The answer is a mixed number, and you want to simplify it as much as possible,

112/5 is 5 going into 112 with it's highest factor.

5*22 is 110, which is the highest factor that can go into 112.

now 22 can be the whole number, and the remaining numbers in the part over whole fraction stays put. Basically, you subtract the numerator of the mixed number with the highest factor that the denominator can fit into the numerator. (112-110 = 2)

So, the answer is 22 2/5, B. (cannot be further simplified.)

Answer:

wait so it wants to know who walked faster?

Step-by-step explanation:

Answer: y-8= x

Step-by-step explanation:

Answer:

x = 30

Step-by-step explanation:

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

Distribute te -3 on the left, and the 3 on the right

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

8x - 6x + 12 = 3x - 18

Simplify

8x - 6x + 12 = 3x - 18

2x + 12 = 3x - 18

Inverse operations

2x + 12 = 3x - 18

-2x          -2x

12 = x - 18

+18     +18

30 = x