Suppose that a ball is thrown into the air with an upward velocity of 4 feet per
second from a building that is 20 feet high. The equation that gives the height of
the ball above the ground at time t, in seconds, is h = 20 + 4t - 16t2.
Determine after how many seconds since the ball was released will it hit the ground?
seconds

Answers

Answer 1

Answer:

velocity

Step-by-step explanation:


Related Questions

Choose the most appropriate name for the function described below.
The efficiency of a car depends on the weight of the car.

A. Weight(car), or W(c)
B. Efficiency(weight), or E(w)
C. Efficiency(car), or E(c)
D. Weight(efficiency), or W(e)

Answers

Answer: The answer is Weight(car), or W(c)

Step-by-step explanation: Hope this helps!!

Answer:

THE CORRECT ANSWER IS: EFFICIENCY(weight), or E(w)

Step-by-step explanation:

The proportion of observations from a standard Normal distribution that take values larger than -0.75 is about

Answers

The answer is 0.7734

Hope this help.

The Fenwick family filled their new in-ground swimming pool with 75,700 liters of water. One gallon of water is about 3.785 liters. About how many gallons of water are in the pool?

gallons

Answers

Answer:

20,000 gallons

Step-by-step explanation:

75,700 ÷ 3.785 = 20,000 gallons that are in the pool.

Answer:

20,000

Step-by-step explanation:

hoped this helped :D

Add the fractions. Write your answer as a mixed number 3/5+4/5

Answers

Answer:

Step-by-step explanation:

3 + 4 = 7.

the denominator stays the same. You only add the numerators.

7/5 in mixed number form is 1  2/5  because 7 goes into 5 once. so kinda like 7 - 5 = 2.  and the 2 goes on top now.

Cindy and Victoria completed 8/9 of their job in a day. Cindy has done 1/9 of the work. How much of the work was done by Victoria?

Answers

Answer:

7/9 of the work was done by Victoria.

Step-by-step explanation:

8/9-1/9=7/9


A climber started at 2,580 feet above sea level. He climbed up 348 feet, down a valley 452 feet, and up 108 feet. What is his new elevation?

Answers

Answer:

2,584

Step-by-step explanation:

You just add or subtract the numbers if hes going up or down.

The number of pages read varies directly as the number of minutes spent reading. After 20 minutes, Zack had read 12 pages. How many pages can Zack read in 35 minutes? Do not include units in your answer.

Answers

The answer is 21 pages.

First, make a proportion

12 pages x pages
—————— = ——————
20 minutes 35 minutes

Second, cross multiple

20x=420

Simplify by dividing both sides by 20

x=21 pages

Hope this helps!

Answer:

21

Step-by-step explanation:

Which of the following is a point on the graph of y-7=3(x-5)

Answers

Answer: (5, 7)

Explanation: The formula for point slope form is,

y2 - y1 = m (x2 - x1)

When you look at the values that have been substituted in, you can see the the x value is 5 and the y value is 7.

When you look at the formula, you can se

What is -2/5 times 5/9?

Answers

Answer:

[tex]-\frac{2}{9}[/tex]

Lee can type 1 1/3 pages every 15 minutes. How many hours does it take him to to type 10 2/3 pages? Complete the rate table to solve the proportion

Answers

Answer:

The answer is 8 because you need to add 1 1/3 eight times to get 10 2/3

Answer:

It takes two hours

Step-by-step explanation:

PLEASE HELP ASAP What part of 6 3/5 is 3 /10 ? PLS HELP ASAP

Answers

Answer:

the 3/5 part of 6 3/5

Step-by-step explanation:

3/5 is equal to 3/10 because when you find the common denominator of 10, you multiply 3/5 by 2 and 3/10 by 1 because 10 is already 10. 3/5*2=6/10.

The average of 5 distinct scores has the same value as
the median of the 5 scores. The sum of the 5 scores is
420. What is the sum of the 4 scores that are NOT the
median?

Answers

Answer:  336 is the sum of the non-median scores

Step-by-step explanation:  if the sum of 5 scores is 420, the average is 420/5 = 84  

That is also the median to be subtracted:  420-84= 336

Consider the table representing an exponential function.


The equation for this function is

f(x) =

Answers

Answer:

Its 8, and 0.5

Step-by-step explanation:

A recipe requires 3/4 of a cup of milk for every 1 1/2 cups of flour how many cups of milk are needed for each cup of flour

Answers

Answer: 1/2 cup

Step-by-step explanation:

If there are 3/4 cup milk needed for every 1 1/2 cup of flour that means for every 1/2 cup of flour you’ll need 1/4 cup of milk. So for a whole cup of flour you’ll need 2/4 cup of milk which is equivalent to 1/2

Find the midpoint of the segment with the endpoints: (-2, 6) and (-3, 7)

Answers

Answer:

The midpoint is ( -2.5, 6.5)

Step-by-step explanation:

To find the x coordinate of the midpoint, add the x coordinates of the endpoints and divide by 2

(-2+-3)/2 = -5/2 = -2.5

To find the y coordinate of the midpoint, add the y coordinates of the endpoints and divide by 2

(6+7)/2 = 13/2 = 6.5

The midpoint is ( -2.5, 6.5)

Find the value of x so that f(x)=7.

Answers

Answer:

slope: 0

y intercept: (0, 7)

Step-by-step explanation:

4/5 + 3 1/10

Please answer quick (◍•ᴗ•◍)❤​

Answers

Answer:

3 9/10

Step-by-step explanation:

Find the common factor

8/10+3 1/10

3 9/10

There are 10 girls for every 12 boys. If there are 50 girls, how many boys are there?

Answers

Answer:

60

Step-by-step explanation:

you have to have a constant. the constant is 5 so 12*5=60

Answer:
60 boys

Explanation:
Please check the attached picture!

Circle YES or NO The terms 15and 9are like terms.

Circle YES or NO The terms -10xy and 9x are like terms.

Answers

Answer:

yes, and no

Step-by-step explanation:

Answer:

YES

NO

Step-by-step explanation:

15 and 9 are like terms because they can be simplified together. 15+9, 15-9, 15*9 can all be simplified further.

-10xy and 9x are not like terms because they cannot be simplified without the variables first being defined.

Unit Post Test
Suomi Test
Reader TOOLS
2
-6
- 2
-2
4
6
The function g> is a transformation of AX). If g(x) has a y-intercept of -2, which of the following functions could represent g(x)?
OA. 80%) = 1x) - 2
B. gx) = Rx+ 2)
OC. 8) = px - 5)
OD. 81%) = Rx) - 5
Reset
Next

Answers

Answer:

r

Step-by-step explanation:

The SAT are scored so as to yield a mean of 500 and a standard deviation of 100. These scores are close to being normally distributed. An exclusive club wishes to invite those scoring in the top 5% on the College Boards to join. a. Find percentages of scores that is between 480 and 590. b. What score is required to be invited to join the club? c. What score separates the top 60% of the population from the bottom 40%? What do we call this value? (hint: the score that separates the top 20% of the population f

Answers

Complete Question

The SAT are scored so as to yield a mean of 500 and a standard deviation of 100. These scores are close to being normally distributed. An exclusive club wishes to invite those scoring in the top 5% on the College Boards to join. a. Find percentages of scores that is between 480 and 590. b. What score is required to be invited to join the club? c. What score separates the top 60% of the population from the bottom 40%? What do we call this value? (hint: the score that separates the top 20% of the population from the bottom 80% is called the 80th percentile)

Answer:

a

 [tex]P(480 < X  <  590) =  0.3952[/tex]  

b  

  [tex]x =  664.5 [/tex]

c

 [tex]x_1 =  474.67[/tex]

The value is called the [tex]40^{th}[/tex] percentile

Step-by-step explanation:

From the question we are told that

The mean is [tex]\mu = 500[/tex]

The standard deviation is [tex]\sigma = 100[/tex]

Generally the percentage of the score that are between 480 and 590 is mathematically represented as

[tex]P(480 < X < 590) = P(\frac{ 480 - 500}{ 100} < \frac{ X - \mu }{ \sigma } < \frac{ 590 - 500}{ 100} )[/tex]

Here [tex]\frac{ X -\mu}{\sigma } = Z[/tex]

=> [tex]P(480 < X < 590) = P(\frac{ 480 - 500}{ 100} < Z < \frac{ 590 - 500}{ 100} )[/tex]

=> [tex]P(480 < X < 590) = P(-0.2< Z < 0.9 )[/tex]

=> [tex]P(480 < X < 590) = P(Z < 0.9 ) - P(Z<-0.2) [/tex]

From the z table (reference calculator dot net )

[tex] P(Z < 0.9 )= 0.81594 [/tex]

And

[tex] P(Z < -0.2 )= 0.42074 [/tex]

=> [tex]P(480 < X < 590) = 0.81594 - 0.42074 [/tex]

=> [tex]P(480 < X < 590) = 0.3952[/tex]

Converting to percent

[tex]P(480 < X < 590) = 0.3952 * 100[/tex]

[tex]P(480 < X < 590) = 39.52\% [/tex]

The percentage invited to join the club is the top 5% , this can be mathematically represented as

[tex]P(X > x ) = 0.05[/tex]

Here x is the score that is within the top 5%

=> [tex]P(X > x) = P( \frac{X - \mu }{\sigma } > \frac{ x - 500}{100} )= 0.05[/tex]

Generally the critical value of 0.05 from the normal distribution table is

[tex]Z_{0.05} = 1.645[/tex]

So

[tex]\frac{ x - 500}{100} = 1.645[/tex]

=> [tex]x - 500 = 164.5[/tex]

=> [tex]x = 664.5 [/tex]

Generally the probability of having a score that separates the top 60% of the population from the bottom 40%

[tex]P(X > x_1 ) = 0.60[/tex]

=> [tex]P(X > x_1) = P(\frac{ X - \mu }{\sigma } > \frac{x - 500}{100} ) = 0.60[/tex]

The critical value of 0.60 from the normal distribution table is

[tex]Z_{0.60} = - 0. 2533[/tex]

So

[tex]\frac{x_1 - 500}{100} = -0.2533[/tex]

=> [tex]x_1 = 474.67[/tex]

From the hint given we can see that this value is called the [tex]40^{th}[/tex] percentile

Please help!! ASAP!! Graph Y=3/8x-2

Answers

Answer is in the graph below.

Write the polynomial in terms of its linear factors.

P(x) 2x^4 - 4x^3 - 16x^2

Answers

9514 1404 393

Answer:

  P(x) = (2x)(x)(x-4)(x+2)

Step-by-step explanation:

Once the common factor of 2x^2 is factored out, you have ...

  P(x) = 2x^2(x^2 -2x -8)

To factor the quadratic, you look for factors of -8 that have a sum of -2.

  -8 = (1)(-8) = 2(-4)

These last factors have that sum, so we can write P(x) as ...

  P(x) = (2x)(x)(x +2)(x -4)

If Khalid uses 3 liters of paint to cover 8 square meters of wall. How much paint does Khalid need to paint 40 square meters of the wall.

Answers

Answer:

15l

Step-by-step explanation:

There are 5 8sq m in 40sq m

total paint is 5*3=15

1 inch= 2.54 cm
How many centimeters equal 5 feet?
762 cm
300 cm
152.4 cm
12.7 cm

Answers

Answer:

152.4 cm is the answer

Step-by-step explanation:

Answer:

152.4cm

Step-by-step explanation:

what is the product of (2/5x-3/4y^2) and (2/5x+3/4y^2)?

Answers

Answer:

[tex]\frac{2x}{5}- \frac{3y^{2} }{4}[/tex]

Step-by-step explanation:

(2/5x-3/4y^2) & (2/5x+3/4y^2) is [tex]\frac{2x}{5}- \frac{3y^{2} }{4}\\[/tex]

Decide whether the given statement is true or false.
7€ {4, 1, 6, 9)
Choose the correct answer below.
True
False

Answers

Answer:

esta Frase es correcta se a los amigos de mis Padres true false

What is the slope of a line perpendicular to the line is question is 3x-3y=54? fully reduce your answer. (it’s not 1)

Answers

Answer:

-1

Step-by-step explanation:

Has to be the opposite

Identify the degree of rotation from the origin.


Please help guys

Answers

Answer:

:)

Step-by-step explanation:

It's B . carmel.bratz go add the snap

An airplane flies with a constant speed of 660 miles per hour. How long will it take to travel a distance of 2475 miles?

Answers

9514 1404 393

Answer:

  3.75 hours

Step-by-step explanation:

Travel time can be found using the relation ...

  time = distance/speed

  time = (2475 mi)/(660 mi/h) = 3.75 h

It will take 3 3/4 hours to travel that distance.

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