An object is dropped from 40 feet below the tip of the pinnacle atop a 716​-ft tall building. The height h of the object after t seconds is given by the equation h=−16t2+676. Find how many seconds pass before the object reaches the ground.

Answers

Answer 1

Answer:

Below

Step-by-step explanation:

When it reaches the ground h = 0

h =     0 = -16t^2+676

            16t^2 = 676

             t^2 = 42.25       t = 6.5 s


Related Questions

From Dan's ranch one road is built to get to Andy's house two roads are built to get wo Willies house. How many way are there now to get from Andys house to Willies house?

Answers

Answer:

the answer you can find onlinde \\\\

Step-by-step explanation:

There were 150 females surveyed, evenly divided for all levels of expertise. there were 450 males surveyed. there were 80 expert players and 180 novice players.

Answers

The values which would help complete the table according to the complete part of the task content are as evaluated.

What value would help complete the table?

First, the total number of average players can be evaluated by summing up the total number of players vertically as follows;

180 + average + 80 = 600

The number of average players is therefore; 600-180-80 = 340 average players.

Also, the number of female expert players can be evaluated vertically as;

50 + 50 + female expert = 150

Female expert = 150-50-50 = 50 female experts.

The number of male novice players can be evaluated horizontally as;

Male novice + 50 = 180

Male novice = 180 - 50 = 130.

The number of average male players is therefore easily evaluated vertically as;

130 + male average + 30 = 600

male average = 600-130-30 = 440.

Remarks: The table which is required to be completed is that which is in the attached image.

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Answer:

130, 290, 340, 50

Step-by-step explanation:

just do the math, I got it right on edmentum.

Paolo helped in the community garden for 2 3/4 hours this week. That was 1 5/6 equal length shifts, because Paolo stopped early one day when it started to rain.

How long is a single shift?

PLS HELP ASAP

Answers

By taking the quotient between the total number of hours and the number of shifts each shift is 1.5 hours long.

How long is a single shift?

We know that Paolo worked (2 + 3/4) hours this week, and that is equivalent to (1 + 5/6) shifts.

To find the number of hours that each shift takes, we need to take the quotient between the total number of hours and the number of shifts:

[tex]\frac{(2 + 3/4)h}{1 + 5/6} = 1.5 h[/tex]

This means that each shift is 1.5 hours long.

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Geometry: write a formal proof, ASAP!!!

Answers

We have proven that ∠BEC ≅ ∠BCE by using the alternate interior angles theorem

Proof of angles

From the question, we are to write a proof to prove that ∠BEC ≅ ∠BCE

From the given information, we have that

BC || EF

Note that line DE is a transversal

Thus, by the alternate interior angles theorem, we have that

∠BCE ≅ ∠FEC

Also, we were given that line EC bisects ∠BEF

That is,

Line EC divides ∠BEF into two equal angles.

Therefore,

∠BEC ≅ ∠FEC

By the substitution property of equality, we get

∠BEC ≅ ∠BCE

Hence, we have proven that ∠BEC ≅ ∠BCE by using the alternate interior angles theorem

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Bailey tossed a coin 10 times. The results were 7 heads and 3 tails.

What is the experimental probability of tossing tails?
answer as a fraction

Answers

The experimental probability of tossing tails is 3/10

Darlene says that 1/4 is greater than 1/3 because 4 is great than 3. is she correct?

Answers

No she is not correct 1/3 is great that 1/4

Answer:

No, she isn't correct because if the numerator are same but if denominators is different,then the fraction with smaller denominator is greater.

According to the graph, for which values of x is y always negative?

Answers

Answer:

3rd option

Step-by-step explanation:

y is negative below the x- axis , that is for values of x in the interval

x > - 6 and x < 6

Suppose you want to purchase a home for $425,000 with a 30-year mortgage at 5.44% interest. Suppose also that you can put down 30%. What are the monthly
payments? (Round your answer to the nearest cent.)
$
What is the total amount paid for principal and interest? (Round your answer to the nearest cent.)
$
What is the amount saved if this home is financed for 15 years instead of for 30 years? (Round your answer to the nearest cent.)
$
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Answers

Answer:

  a) payment: $1677.99

  b) total repaid: $604,076.40

  c) saved: $168,231.60

Step-by-step explanation:

The amortization formula can be used to find the monthly payment on the loan. The total repaid will be the sum of payments made. The amount saved will be the difference between the total repaid amounts for the different loans.

Amortization formula

The payment A on a loan of principal P at annual rate r for t years is given by ...

  A = P(r/12)/(1 -(1 +r/12)^(-12t))

Application

The loan of interest is for $425,000 × (1 -30%) = $297,500. Then the payments on a 30 year loan are ...

  A = $297,500(0.0544/12)/(1 -(1 +0.0544/12)^-360) ≈ $1677.99

For a 15-year loan, the payments are ...

  A = $297,500(0.0544/12)/(1 -(1 +0.0544/12)^-180) ≈ $2421.36

a)

The above calculation shows the monthly payment is $1677.99.

b)

The total repaid is the sum of 360 monthly payments:

  360×$1677.99 = $604,076.40

c)

The total repaid is the sum of 180 monthly payments:

  180×$2421.36 = $435,844.80

and the savings is ...

  $604,076.40 -435,844.80 = $168,231.60

__

Additional comment

We are asked to round to the nearest cent. The payment amounts here are accurately calculated to that precision. The total repaid on an actual loan will be slightly different, because the final payment will be slightly different.

The 30-year mortgage will have a slightly lower final payment because the monthly amount is rounded up. The 15-year mortgage will have a slightly higher final payment because the monthly amount is rounded down.

Overall, this means the totals of payments shown here, and their difference, vary slightly from the reality of loans of this kind. (They're probably not accurate to the nearest cent.)

Even using the "exact" payment value may not give the actual loan values. This is because the actual amortization schedule is rounded to the nearest cent each month. The cumulative effect of this rounding seems to be calculable only by figuring the 360 (or 180) actual monthly balance amounts.

We have calculated the answers in the manner we suppose is expected. Producing an actual amortization spreadsheet is a bit more work.

Say you have (-4x)^2, why and how would it translate to 16x^2? it's the same thing as (-4x)(-4x) so wouldn't you double distribute it?

Answers

That is a scenario of a double negative. If there is 2 negatives, it equals a positive

A hotel packed a breakfast for each of three guests. Each breakfast should have consisted of three types of rolls, one each of nut, cheese, and fruit rolls. The preparer wrapped each of the nine rolls, and, once they were wrapped, the rolls were indistinguishable from one another. She then randomly put three rolls in a bag for each of the guests. Given that the probability that each guest got one roll of each type is m/n, where m and n are relatively prime integers, find m+n.

Answers

The probability that each guest of each type m+n will receive a roll is 79.

Given that the breakfast should have consisted of three types of rolls, one each of the nut, cheese and fruit rolls, and the cook should have wrapped each of the nine rolls.

The denominator of m/n equals the total number of possible role configurations assigned to the three people. It [tex]${9 \choose 3}{6 \choose3}$[/tex] is the same as the number of ways to choose three roles out of 9 to give to the first person [tex]${9 \choose 3}$[/tex], and three rolls of 6 [tex]${6 \choose3}$[/tex]. After that, the remaining three roles have no more configurations.

The numerator is the number of ways to assign a roll of each type to each of the three people, which can be done by defining the three types of roles such as flavored x, flavored y and flavored z.

xxx, yyy, zzz

So we have to choose one x, one y and one z to give to the first person. There are 3x, 3y and 3z to choose from, resulting in 3³ combinations. Multiply that by the combinations of xs, ys and zs for the second person, which is clearly 2³ since there are two of each letter left. simplify to our fraction m / n, which is 9/70. If you add them together, you get 9 + 70 = 79.

Thus, the probability that each guest has obtained a roll of each type is m / n, where m and n are relatively prime, so m + n is 79.

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How will the volume of the pyramid change if each side is multiplied by a factor of one-half? a rectangular pyramid. the volume will be 2 times the original volume. the volume will be 8 times the original volume. the volume will be one-fourth times the volume. the volume will be one-eighth times the volume.

Answers

The volume will be one-eighth times the volume.

How to determine the volume?

The scale factor k is given as

k = 1/2

Let the initial volume be v

When each side is multiplied by the scale factor, we have the new volume to be

V = k^3 * v

Substitute 1/2 for k in the above equation

V = (1/2)^3 *v

Evaluate the exponent

V = 1/8 *v

This gives

V = 1/8v

Hence, the volume will be one-eighth times the volume.

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Please help me with this question

Answers

d/dx(3x²+5x-2)d/dx(3x²)+d/dx(5x)-d/dx(2)6x+5-06x+5

Used formula

d/dx(x^n)=nx^{n-1}

Answer:

6x+5

Step-by-step explanation:

the derivative of a sum is equal to the sum of derivatives:

(3x^2 + 5x + 2)' = (3x^2)' + (5x)' + (2)' = 6x + 5

Q.E.D.

A relationship between two variables in which the variables vary in the opposite direction (i.e., one increases while the other decreases, or vice versa) is referred to as a:

Answers

A relationship between two variables in which the variables vary in the opposite direction (i.e., one increases while the other decreases, or vice versa) is referred to as a negative correlation.

What is negative correlation?

When two variables move in opposite sizes and directions from one another, so that when one increases, the other drops, and vice versa, this is referred to as having a negative correlation or inverse correlation.

In order for investors to profit from price increases in some assets when others decline, negative correlation is used when building diverse portfolios.

Over time, the correlation between two variables might change significantly. Bonds and stocks typically have negative correlation.

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Determine the vertical asymptotes for the reciprocal of this function f(x)=x^2 + 3x -28

Answers

Answer:

x = -7 and x = 4.

Step-by-step explanation:

f(x) = x^2 + 3x - 28

= (x + 7)(x - 4).

The reciprocal of f(x) can be written as

1 / (x + 7)(x - 4).

When the denominator is zero we have vertical asymptotes

so they are x = -7 and x = 4.

What is the surface area of the figure below?

Round your answer to the nearest tenth square foot?

(The answer choices are in the picture. Thank you!)

Answers

Answer:

856.5ft^2

Step-by-step explanation:

I took the test.

Pherris is graphing the function f(x) = 2(3)x. He begins with the point (1, 6). Which could be the next point on his graph?

(2, 12)
(2, 18)
(2, 7)
(3, 7)

Answers

Answer: (2, 18)

Step-by-step explanation:

When x=2, [tex]f(2)=2(3)^{2}=18[/tex].

So, it should pass through (2, 18).

A scalene triangle whose angles are all congruent possible or impossible

Answers

Answer:

impossible

Step-by-step explanation:

a scalene triangle is a triangle in which all three sides are in different lengths, and all three angles are of different measures.

because all 3 angles must be different, they cannot be congruent.

because if angles are congruent, it means that they are of equal size.

the desired definition is a paradox or oxymoron. it contradicts itself and can never be true.

Answer:

it cannot have all angles congruent: impossible.

Step-by-step explanation:

by the definition scalene, it means no angle is the same length. meaning, to have all the sides congruent (the same length) that would be impossible and it can never happen. if you would like a congruent triangle, an isosceles or equilateral is the triangle you're looking for.

2. There are 10 pieces of paper, numbered
consecutively from 20 to 29, stuffed in a box.
What is the probability of choosing a prime
numbered paper if one piece is chosen at
random?

Answers

Answer:

[tex]\frac{1}{5}[/tex]

Step-by-step explanation:

Prime numbers between 20 - 29 = 23 and 29.

There are 2 prime numbers out of these 10.

Therefore,

P(choose prime number) = [tex]\frac{2}{10} \\=\frac{1}{5}[/tex]

Someone help me please

Answers

Answer:

x=15

Step-by-step explanation:

Use the Pythagorean Theorem: a^2+b^2=c^2

1. a = 20, b = x, c = 25

2. 20^2+b^2= 25^2

3. Expand: 400+b^2= 625

4. Subtract + Simplify: b^2= 625-400

5. Fully Solve: b^2 = 225 -> Square root of b^2 = Square root of 225

6. Last Step: Simplify: b = 15.

Here is a similar problem for you to solve, put your answer in the comments.

a= 12, b=5, c=?

Solve for c using the Pythagorean theorem.

the answer to the question is x=15


A scientist measured the water pressure at different depths. She made a table showing her findings. The x-values
represent the depth, in meters. The y-values represent the pressure in atmospheres (atm).
0
15
30
0
3
6
Assuming there is a proportional relationship, which additional set of values could be included in the table?
(10,2)
(40,9)
(50,38)
(100, 76)
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Answers

The additional set of values which could be included in the table is; (10,2).

Which additional set of values can be included in the table?

As evident in the task content, it follows that for a 15 unit increase in x, depth, there is a 3 unit increase in y, pressure.

On this note, it follows that with each 5 unit increase in x corresponds to 1 unit increase in y.

And ultimately, at x = 10, y = 2 × 1 = 2.

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What are the domain and range of g of x equals negative 3 times the square root of the quantity x minus 1? D: (1, ∞) and R: (0, ∞) D: [–3, ∞) and R: [0, ∞) D: (–3, ∞) and R: (–∞, 0) D: [1, ∞) and R: (–∞, 0]

Answers

The domain of the function is [1,  ∞) and the range is [0,  ∞)

How to determine the domain and the range?

The equation of the function is given as:

g(x) = 3√x - 1

The domain is the possible values of x.

Set the radicand to greater than or equal to 0

x - 1 >= 0

Add 1 to both sides

x >= 1

This can be rewritten as:

[1,  ∞)

Breakdown

g(x) = 3√x - 1

x - 1 >= 0

x >= 1

[1,  ∞)

The range is the possible values of y.

Set the radicand to 0

g(x) = 3 * 0

Evaluate the product

g(x) = 0

This can be rewritten as:

[0,  ∞)

Breakdown

g(x) = 3√x - 1

g(x) = 3 * 0

g(x) = 0

[0,  ∞)

Hence, the domain of the function is [1,  ∞) and the range is [0,  ∞)

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Answer:

Correct answer is D: [1, ∞) and R: (-∞, 0]

Step-by-step explanation:

Insert the given function on desmos to observe the following explanation.

The domain (x values) begin at 1, and go on to positive infinity (the squared bracket indicates a stop/start at that certain point). The range goes into negative infinity (y values) and begins at the y value of 0, so it does not go above that point on the y axis (hence the squared bracket).


Graph the rational function
by identifying its key features.

Answers

The graph of the rational function is shown below

Graph of rational functions

From the question, we are to graph the given rational function

To determine the graph that corresponds to the given rational function,

First, we will graph the given rational function.

The given rational function is

x²+3x-1/x+1

The graph of the rational function is shown below

Now, we will compare each of the rational graphs in the provided options with the attached graph

The graph that corresponds to the given rational graph in the attachment below is the graph that represents the given rational function.

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What is the midpoint of the segment shown below?

Answers

Answer:

The correct answer choice is D

if you shift the absolute value parent function, F(x)= IxI, right 9 units, what is the equation of the new function?
A. G(x)=IxI-9
B. G(x)=Ix+9I
C. G(x)=Ix-9I
D. G(x)=IxI+9

Answers

The answer of this is 9 units to the right and 8 units up which is c G(x)=|x-9|

During the month of May there were 130 births, of which 127 were full-term births and three were premature births. There were five newborn deaths. The newborn death rate is

Answers

During the month of May, there were 130 births, of which the newborn death rate is 38.4615.

According to the question,

There were 130 births, of which 127 were full-term births and three were premature births. There were five newborn deaths.

In order to find the newborn death rate we have the formula:

=  [tex]\frac{number of death under 28 days of age }{Total live births in the same year}[/tex]  × 1000

= [tex]\frac{5}{130}[/tex] × 1000

=[tex]\frac{5000}{130}[/tex]

=38.4615

Hence, the new born death rate is 38.4615.

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A type of sampling in which individuals to be interviewed are selected based on their proportion or quota in the general population being polled is known as

Answers

A type of sampling in which individuals to be interviewed are selected based on their proportion or quota in the general population being polled is known as public opinion.

What is sampling type of public opinion ?

A survey that measures the entire target population is called a census. A sample refers to a group or section of a population from which information is to be obtained. Survey samples can be broadly divided into two types: probability samples and super samples.

The collective opinion of large segment of the population on an issue, candidate or public policy on which the public may be much divided and lake a consensus.

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Factor the polynomial expression 3x2+2.
A. (3‾√x+2‾√i)(3‾√x−2‾√i)
B. (3‾√x+i)(3‾√x−i)
C. (3‾√x+2‾√)(3‾√x−2‾√)
D. (3x+2‾√i)(3x−2‾√i)

Answers

Using the Factor Theorem, the expression 3x² + 2 is factored as follows:

[tex]3x^2 + 2 = (\sqrt{3}x + i\sqrt{2})((\sqrt{3}x - i\sqrt{2}))[/tex]

What is the Factor Theorem?

The Factor Theorem states that a polynomial function with roots [tex]x_1, x_2, \codts, x_n[/tex] is given by:

[tex]f(x) = a(x - x_1)(x - x_2) \cdots (x - x_n)[/tex]

In which a is the leading coefficient.

In this problem, the expression is:

3x² + 2.

The roots are found as follows:

[tex]3x^2 + 2 = 0[/tex]

[tex]x^2 = -\frac{2}{3}[/tex]

[tex]x = \pm \sqrt{-\frac{2}{3}}[/tex]

[tex]x_1 = -i\sqrt{\frac{2}{3}}[/tex]

[tex]x_2 = i\sqrt{\frac{2}{3}}[/tex]

Hence the factored expression is:

[tex]3x^2 + 2 = \left(x + i\sqrt{\frac{2}{3}}\right)(x - 1\sqrt{\frac{2}{3}}\right) = (\sqrt{3}x + i\sqrt{2})((\sqrt{3}x - i\sqrt{2}))[/tex]

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Determine the slope of the line.

Answers

The slope of the line is - 3 / 2 .

How to find slope?

The slope of a line is the change in y coordinate with respect to the change in x coordinate.

Therefore, using (0, 6)(4, 0)

Hence,

m = slope = y₂ - y₁ / x₂ - x₁

slope = 0 - 6 / 4 - 0

slope = -6 / 4

slope = - 3 / 2

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Your family is going on vacation for two nights. You don't want to spend more than $135 on a hotel room for your vacation. Write an inequality to represent how much you can spend each night on your hotel room.

Answers

Answer:

x ≤ 135/2

Step-by-step explanation:

x is the cost per night. You have to pay for 2 nights, and you do not want to spend more than $135 total. Another way to say that, is you want to spend less than or equal to $135.

x = cost per night

2 = number of nights

2x = total cost

Total cost must be less than or equal to $135.

2x ≤ 135

Divide each side by 2.

x ≤ 135/2

what is meant by green mathematics?
give meaningful answer .
[tex]4222125.[/tex]
who can give the first answer ​

Answers

The green mathematics tells about the impulse response of an in homogeneous linear differential operator.

According to the statement

we have to explain the green mathematics.

In mathematics, Actually there is a Green Function which was founded by a mathematician George Green.

In this function, a Green's function is the impulse response of an in homogeneous linear differential operator defined on a domain with specified initial conditions or boundary conditions.

The example of green function is the Green's function G is the solution of the equation LG = δ, where δ is Dirac's delta function; the solution of the initial-value problem Ly = f is the convolution (G ⁎ f), where G is the Green's function.

Actually in this function, it gives the relationship between the line integral of two dimensional vector over a closed path by a integral.

In this there is a green theorem, which  relates a line integral around a simply closed plane curve C and a double integral over the region enclosed by C.

So, The green mathematics tells about the impulse response of an in homogeneous linear differential operator.

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