If a wedding ring is dropped from a tall building, the distance it has fallen in feet is given by 16t2, where t is the time in secondssince the ring was dropped. How far has the ring fallen after 2 seconds?Select one:a. 32 ftb. 64 ftc.48 ftd. 196 ft

Rounding to the nearest cent, the estimated value of the vehicle after 4 years is approximately $23,726.20..

To estimate the value of the vehicle after 4 years, we can use the given equation A = 39500(0.86)^t, where A represents the value of the vehicle and t represents the number of years.

Substituting t = 4 into the equation:

A = 39500(0.86)^4

A ≈ 39500(0.5996)

A ≈ 23726.20

Rounding to the nearest cent, the estimated value of the vehicle after 4 years is approximately $23,726.20.

This estimation is based on the assumption that the vehicle's value decreases by 14% each year. The equation A = 39500(0.86)^t models the exponential decay of the vehicle's value over time. By raising the decay factor of 0.86 to the power of 4, we account for the 4-year period. The final result suggests that the value of the vehicle would be around $23,726.20 after 4 years of ownership.

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Parker would have approximately $13,774 in his account when Matthew's money has tripled in value.

We have,

For Matthew's investment, the continuous compounding formula can be used:

\(A = P \times e^{rt}\)

Where:

A = Final amount

P = Principal amount (initial investment)

e = Euler's number (approximately 2.71828)

r = Annual interest rate (in decimal form)

t = Time (in years)

In this case,

Matthew's money has tripled,

So A = 3P.

For Parker's investment, the formula for compound interest compounded annually is used:

\(A = P \times (1 + r)^t\)

Where:

A = Final amount

P = Principal amount (initial investment)

r = Annual interest rate (in decimal form)

t = Time (in years)

We need to find t when Matthew's money has tripled in value.

Let's set up the equation:

\(3P = P \times e^{rt}\)

Dividing both sides by P, we get:

\(3 = e^{rt}\)

Taking the natural logarithm of both sides:

ln(3) = rt

Now we can solve for t

t = ln(3) / r

For Matthew's investment,

r = 3 1/8% = 3.125% = 0.03125 (as a decimal).

For Parker's investment,

r = 2 3/4% = 2.75% = 0.0275 (as a decimal).

Now we can calculate t for Matthew's investment:

t = ln(3) / 0.03125

Using a calculator, we find t ≈ 22.313 years.

Now, we can calculate how much money Parker would have in his account at that time:

\(A = P \times (1 + r)^t\)

\(A = $8,000 \times (1 + 0.0275)^{22.313}\)

Using a calculator, we find A ≈ $13,774.

Therefore,

Parker would have approximately $13,774 in his account when Matthew's money has tripled in value.

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Answer:

20,763

Step-by-step explanation:

I saw the answer after I got it wrong

Answer:

this the answery=x/3+2

Answer:100%

Step-by-step explanation:

83+94+88+85+100=450

450/5=90% average

Answer:

Hint: everything in that big [] is to the power of zero. anything to the power of zero is one. so

1+(6-8)=?

The P-value for the test is 1.804 and the 95 percent confidence interval on the difference in mean diameter measurements for the two types of calipers is [-0.00147, 0.00347].

a) To determine if there is a significant difference between the means of the population of measurements from which the two samples were selected, we can use a two-tailed t-test. We can calculate the t-statistic as follows:

t = (x1 - x2) / sqrt[((s1^2)/n1) + ((s2^2)/n2)]

where x1 and x2 are the sample means, s1 and s2 are the sample standard deviations, and n1 and n2 are the sample sizes.

For this example, the sample means are x1 = 0.266 and x2 = 0.267. The sample standard deviations are s1 = 0.0017 and s2 = 0.0015. The sample sizes are n1 = 12 and n2 = 12.

Plugging these values into the formula, we get:

t = (0.266 - 0.267) / sqrt[((0.0017^2)/12) + ((0.0015^2)/12)] = -0.145

The critical t-value for a two-tailed test at a significance level of 0.05 with 11 degrees of freedom is 2.201. Since our calculated t-value of -0.145 is not greater than the critical t-value, we can conclude that there is not a significant difference between the means of the population of measurements from which the two samples were selected.

b) The P-value for the test in part (a) is the probability of obtaining a test statistic as extreme as the one we calculated (or more extreme) if the null hypothesis is true. We can calculate this probability as follows:

P = 2 * P(t <= -0.145)

where P(t <= -0.145) is the cumulative probability of the t-distribution with 11 degrees of freedom at -0.145.

Using the t-distribution table, the cumulative probability of t at -0.145 is 0.902. Thus, the P-value for the test in part (a) is P = 2 * 0.902 = 1.804.

c) To construct a 95 percent confidence interval on the difference in mean diameter measurements for the two types of calipers, we can use the following formula:

CI = [x1 - x2 +/- t(alpha/2, df) * sqrt[((s1^2)/n1) + ((s2^2)/n2)] ]

where x1 and x2 are the sample means, s1 and s2 are the sample standard deviations, n1 and n2 are the sample sizes, and t(alpha/2, df) is the critical t-value for the two-tailed test at a significance level of alpha/2 with df degrees of freedom.

For this example, the sample means are x1 = 0.266 and x2 = 0.267. The sample standard deviations are s1 = 0.0017 and s2 = 0.0015. The sample sizes are n1 = 12 and n2 = 12. The critical t-value for a two-tailed test at a significance level of 0.025 with 11 degrees of freedom is 2.771.

Plugging these values into the formula, we get: CI = [0.266 - 0.267 +/- 2.771 * sqrt[((0.0017^2)/12) + ((0.0015^2)/12)] ] = [-0.00147, 0.00347]

Thus, the 95 percent confidence interval on the difference in mean diameter measurements for the two types of calipers is [-0.00147, 0.00347].

The results of the two-tailed t-test show that there is not a significant difference between the means of the population of measurements from which the two samples were selected. The P-value for the test is 1.804 and the 95 percent confidence interval on the difference in mean diameter measurements for the two types of calipers is [-0.00147, 0.00347].

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Answer:

The answer is the middle one or B)

Step-by-step explanation:

The answer to the question is 63, and 21 times 3 is its simplest form.

Answer:

\(7 \sqrt{3} \times 3 \times \sqrt{3} = 7 \times 3 \sqrt{3} \times \sqrt{3} = 21 \times { \sqrt{3} }^{2} = 21 \times 3\)

Answer:

Omar can ride the roller coaster 4 times and will have 4 tickets leftover.

Step-by-step explanation:

For a more simple problem like this, long division is not necessary.

You may have learned the technique of finding how many times a divisor can "go in" to the dividend.

In this case, 5 (the cost of riding the coaster) can go into 24 (the amount Omar has) 4 times, because 5, 10, 15, 20. However, going in one more time puts us at 25, which Omar does not have, so 5 can only go into 24 5 times.

Since there is still 4 tickets leftover, Omar can ride the coaster 4 times, and will have 4 tickets left.

Check the picture below.

Answer:

b

Step-by-step explanation:

edge 2023

The height of the monument is 30 meters.

We have,

Let's assume the height of the monument is "h" meters.

From the top of the building, the angle of elevation to the top of the monument is equal to the angle of depression to the foot of the monument. This forms a right triangle with the building, the monument, and the ground.

In this triangle, the opposite side of the angle of elevation is the height of the building, which is given as 30 meters.

The opposite side of the angle of depression is the height of the monument, which is "h" meters.

Since the angles of elevation and depression are equal, the triangle is an isosceles triangle.

Therefore, the opposite sides are equal in length.

By setting up the equation:

h = 30

Thus,

The height of the monument is 30 meters.

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Answer:

...

Step-by-step explanation:

To find the number of calories Davis burns while running for 30 minutes, we can use the information that he burns 1080 calories running for 2.5 hours.

We know that 30 minutes is 1/120 of 2.5 hours. So, we can divide the total number of calories by 120 and we get the calorie burn for 30 minutes:

1080 calories / 120 = 9 calories

The number of calories Davis burns while swimming for 30 minutes can be determined by using the equation y = 266x, where x represents the number of hours he swims. We know that he swims for 30 minutes, or 1/120 hours, so we can plug that value into the equation:

y = 266(1/120) = 2.216 calories

So, Davis burns 7 calories more running for 30 minutes than swimming for 30 minutes, assuming the rates remain constant.

Answer:

perimeter = 28 units. area = 45 square units.

Step-by-step explanation:

perimeter = (6 - -3) + (7 -2) + (6 - -3) + (7 - 2)

                = 9 + 5 + 9 +5

                 = 28 units.

area = (6 - -3) X (7 -2)

        = (6 + 3) X 5

         = 9 X 5

         = 45 square units

Check the picture below.

Answer:

23

Step-by-step explanation:

he value of B in the table is 23.

Answer:

A

Step-by-step explanation:

Givens

v = 42 ft/sec

Formula

v = 7 * (p)^1/2

Solution

42 = 7 * (p)^1/2           Divide by 7

42/7 = 7*(p)^1/2/7

6 = (p)^1/2                  Square both sides

6^2 = [(p)^1/2]^2

36 = p

The answer is A

ANSWER

B. For any term (x^a)(y^b) in the expansion, a + b = n

EXPLANATION

The Binomial Theorem formula is,

As we can see in this expression, the exponents of each term of the binomial are (n-k) and k, so, if we add them we have,

This means that the sum of the exponents is always n.

On the other hand, when k = 0, the exponents are n and 0, and the coefficient of that term is,

And, when k = n, the exponents are 0 and n, and the coefficient of that term is,

This means that for the first and last term (when the exponents for each variable are n) the coefficients are both 1.

Hence, the two true statements are B and C.

Answer:

\(y = - \frac{4x}{107} + 12\)

Step-by-step explanation:

You start with 12 gallons, and for every mile that you drive, you will deplete \(\frac{1}{321}\) of your total amount of gas, or \(\frac{12}{321} = \frac{4}{107}\) gallons of gas for every mile you drive. Thus, for every x miles you drive, you'll deplete \(\frac{4x}{107}\) miles. Subtract that from 12 to get your final answer.

\( \frac{12 \times x}{321} \)

Answer:

y= -3x + 3

Step-by-step explanation:

the point given tells you the y-int

given that y=mx + b, you can plug in the values

y= -3x + 3

Answer:

How many variables?

Step-by-step explanation:

a) 2 letters to church and 4 letters to union

b) $ 1000

A  statement of an order relationship—greater than, greater than or equal to, less than, or less than or equal to—between two numbers or algebraic expressions.

Given data:

Letter writing time for church = 2 hours

Follow up required for church = 1 hour

Letter writing time for labor union = 2 hours

Follow up required for labor union = 3 hour

Funds from church = $ 100

Funds from union = $ 200

now, let 'x' be the number of letters written to church

and let  'y' be the number of letters written to labor union

According to the given conditions

maximum timing for letter writing = 12 hours

So,

2x + 2y ≤ 12 hours

x + y ≤ 6 hours

Now, maximum time for follow up = 14 hours

1x + 3y ≤ 14 hours  

on solving the both the equations

    x +   y = 6

- ( 1x + 3y = 14 )

----------------------

0 - 2y = -8

y = 4 hours

and, x + 4 = 6

x = 2

Now,

money raised  = (2 × $ 100) + (4 × $ 200)

= $ 1000

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b)

We need to find the equation when the population increases by 2 percent a year.

Then, the equation must be an exponential function:

The population increases by 5% = 0.05 year

Hence, p= initial value + (1 + 0.05)^t

Replacing the values:

I would need a bit more to answer that one my friend

Value of the expression 10z + 5w is 40.

Expressions in math are mathematical statements that have a minimum of two terms containing numbers or variables, or both, connected by an operator in between. The mathematical operators can be of addition, subtraction, multiplication, or division.

For example, x + y is an expression, where x and y are terms having an addition operator in between.

Given expression

10z + 5w

z = 3

w = 2

Substituting value of z and w in the expression

10z + 5w = 10(3) + 5(2)

⇒ 10z + 5w = 30 + 10

⇒ 10z + 5w = 40

Hence, 40 is the value of the expression 10z + 5w.

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Step-by-step explanation:

87,959 ==> 88,000 is the nearest hundred

The answer is:

Work/explanation:

When rounding to the nearest hundredth, round to 2 decimal places (DP).

Which means we should round to 5.

5 is followed by 9, which is greater than or equal to 5. So, we drop 9 and add 1 to 5 :

87. 96

Answer:

$2,500 or 25%

Step-by-step explanation:

Let's use the same example:

Cost of Equipment = $10,000

Useful Life = 4 years

Depreciation Rate = (Annual Depreciation / Cost of Equipment) * 100

Annual Depreciation = Cost of Equipment / Useful Life

Annual Depreciation = $10,000 / 4 years

Annual Depreciation = $2,500

Depreciation Rate = ($2,500 / $10,000) * 100

Depreciation Rate = 0.25 * 100

Depreciation Rate = 25%

Answer:

1) \(\sqrt{53}(\cos286^\circ+i\sin286^\circ)\)

2) \(\displaystyle 5,-\frac{5}{2}+\frac{5\sqrt{3}}{2}i,-\frac{5}{2}-\frac{5\sqrt{3}}{2}i\)

Step-by-step explanation:

Problem 1

\(z=2-7i\\\\r=\sqrt{a^2+b^2}=\sqrt{2^2+(-7)^2}=\sqrt{4+49}=\sqrt{53}\\\\\theta=\tan^{-1}(\frac{y}{x})=\tan^{-1}(\frac{-7}{2})\approx-74^\circ=360^\circ-74^\circ=286^\circ\\\\z=r\,(\cos\theta+i\sin\theta)=\sqrt{53}(\cos286^\circ+i\sin 286^\circ)\)

Problem 2

\(\displaystyle z^\frac{1}{n}=r^\frac{1}{n}\biggr[\text{cis}\biggr(\frac{\theta+2k\pi}{n}\biggr)\biggr]\,\,\,\,\,\,\,k=0,1,2,3,\,...\,,n-1\\\\z^\frac{1}{3}=125^\frac{1}{3}\biggr[\text{cis}\biggr(\frac{0+2(2)\pi}{3}\biggr)\biggr]=5\,\text{cis}\biggr(\frac{4\pi}{3}\biggr)=5\biggr(-\frac{1}{2}-\frac{\sqrt{3}}{2}i\biggr)=-\frac{5}{2}-\frac{5\sqrt{3}}{2}i\)

\(\displaystyle z^\frac{1}{3}=125^\frac{1}{3}\biggr[\text{cis}\biggr(\frac{0+2(1)\pi}{3}\biggr)\biggr]=5\,\text{cis}\biggr(\frac{2\pi}{3}\biggr)=5\biggr(-\frac{1}{2}+\frac{\sqrt{3}}{2}i\biggr)=-\frac{5}{2}+\frac{5\sqrt{3}}{2}i\)

\(\displaystyle z^\frac{1}{3}=125^\frac{1}{3}\biggr[\text{cis}\biggr(\frac{0+2(0)\pi}{3}\biggr)\biggr]=5\,\text{cis}(0)=5(1+0i)=5\)

Note that \(\text{cis}\,\theta=\cos\theta+i\sin\theta\) and \(125=125(\cos0^\circ+i\sin0^\circ)\)

Answer:

3 boxes of candy

Step-by-step explanation:

$20.00 = $10.50 + 3(b)

3*3 = $9.00

$10.50 + $9.00 = $19.50

$20.00 - $19.50 = $0.50

($0.50 is the reminder).

Have a great day, all!!

Answer: The range is 20, Standard Deviation, σ: 6.8702256149271

Step-by-step explanation:

I hope it helped!

<3

I think A but not sure

Answer:

Step-by-step explanation:

Proportional relationship equation:

Use one pair of coordinates to find the value of k, the point (3, 2):

Step-by-step explanation:

Proportionality = y2 - y1/x2 - x1

=> (2 - 0)/(3 - 0)

=> 2/3

Hence,

⅔ is the correct answer