A roller coaster accelerates from an initial velocity of 5.0 m/s to a final velocity of 80
m/s during a 5 second time interval. At what rate does the roller coaster accelerate?
displacement
Velocity =
time
(n=4)
Acceleration =
final velocity – initial velocity
time
(
15 m/s2
15 m/s
-15 m/s2
17 m/s2

Answers

Answer 1

Answer:

15m/s^2

Step-by-step explanation:

u=5m/s

v=80m/s

a=?

t=5sec

now

a=v-u/t

a =80-5/5

a=75/5

a =15 ans


Related Questions

Which are valid rearrangements of F=95C+32? Select the two correct answers. response - incorrect 95C−F=32 F+95C+32=0 C=59(F−32) C=95(F−32) F−32=95C

Answers

Answer:

F+95C+32=0 & F−32=95C

Step-by-step explanation:

f=95c+32

Answer:

1st and the last one

Step-by-step explanation:

HELP MEEE OMGGGG JESSUS AMENNN

Answers

Answer:

Answers in the pics

Step-by-step explanation:

If you have any questions about the way I solved it, don't hesitate to ask me in the comments below ;)

A gym employee is paid monthly. After working for three months, he had earned $4,500. To
determine how much money he will make over a six-month period, he created the table below.

Write an equation to represent the constant of proportionality

Answers

Answer:

$9000

Step-by-step explanation:

A gym employee has earned in 3 months =$4500

Then his monthly salary =$4500/3 =$1500

After six months he will earn = 6 × his monthly salary

= 6×$1500=$9000

If t = -3, what is
[tex] \sqrt{6 - 25t} [/tex]

Answers

Answer:

[tex]9[/tex]

Step-by-step explanation:

So we have the expression:

[tex]\sqrt{6-25t}[/tex]

And we want to find the value of the expression when t is -3.

So, substitute -3 for t:

[tex]\sqrt{6-25(-3)}[/tex]

Multiply:

[tex]=\sqrt{6+75}[/tex]

Add:

[tex]=\sqrt{81}[/tex]

Evaluate:

[tex]=9[/tex]

So, our answer is 9.

And we're done!

If t=-3, then the square root would look like this:
6-75 squared. 6-75 is 69. 69 squared is 8.3.
Hope this helped

Is 24.928 a rational number

Answers

Answer:

Yes, because it has an end.

Step-by-step explanation:

Rational numbers end, while irrational numbers continue on and there is no visible pattern.

use inductive resoning to predict the next number 1,6,-4,1,-9,-4,-14,-9,-19

Answers

Answer:

-14

Step-by-step explanation:

the pattern is y+5=x, x-10=z

so,

1(+5)=6

6(-10)=-4

-4(+5)=1

1(-10)=-9

-9(+5)=-4

Help me out im stuck

Answers

Answer:

m<1 = 57

Step-by-step explanation:

they are vertical angles

Answer:

C. 57

Step-by-step explanation:

Angles verticle from each other are the same measure.

(9+33-6)-3-7?
can someone also explain it i don't really understand :( thx! ​

Answers

Answer:

26

Step-by-step explanation:

APPLY PEMDAS:

Evaluate the numbers in the parentheses before evaluating the whole equation.

[tex](9+33-6)-3-7\\\\36 - 3 -7\\\\33-7\\\\\boxed{26}[/tex]

Hope this helps.

A letter in the word UNIVERSITY is chosen. What is the theoretical probability of choosing an I? *

Answers

Answer:

There is a 1 in 5 chance that the letter will be I.

Step-by-step explanation:

There are ten letters in the word and 2 are I's. 2/10 simplifies to 1/5.

Answer:

2/10 or 20%

Step-by-step explanation:

if you were to pick at random

out of all i would have a 20 percent chance to be chosen

SO Problem -3.62 + 18.57 =

Answers

Answer:

18.57- 3.62

___________________

14.95

HELP ME PLEASE I NEED THIS <3333

Answers

Answer:

214°

Step-by-step explanation:

The arc subtending an angle at the centre are equal, that is

arc ED = 90° and

arc DF = 360° - (90 + 146)° = 360° - 236° = 124°

Thus

arc EDF = arc ED + arc DF = 90° + 124° = 214°

The Ford Mustang can travel at a rate of 160 miles in 2 hours. The Toyota Corolla can travel at a rate of 210 miles in 3 hours. Which car has faster rate?

Answers

Answer:

The Ford Mustang can travel at a faster rate.

Step-by-step explanation:

160/2 = 80/1   miles/hour -Ford Mustang

210/3 = 70/1    miles/hour - Toyota Corolla

The ladder in a fire station is 29 feet (ft) tall. The ladder is anchored to the basement floor and the second floor ceiling. The basement floor is 12 feet below ground level. Identify the integers of the ends of the ladder below and above the basement floor

Answers

Answer:

top = 17ft

bottom = -12ft

Step-by-step explanation:

As seen in the badly drawn picture attached in this question we are trying to find the point at the top of the ladder and the point at the bottom of the ladder. As seen in the picture ground level has an altitude of 0 ft meaning that lower than this would be in the negatives. Since the basement floor is 12 feet below ground level then this point would be -12 ft. Now since we know that the ladder is 29ft tall we simply add this height to the basement floor value to get the value of the 2nd floor ceiling (top of the ladder).

29ft + ( -12ft) = 17ft

Therefore we can see that the point at the top of the ladder is 17ft.

-25x =10 step by step

Answers

Answer:

x=-0.4

Step-by-step explanation:

Start with -25x=10

Divide each side by -25 using the Division Property of Equality to isolate x

x=-0.4

I hope this helps!

Answer:

Value of [tex]x[/tex] :

[tex]x = -\frac{2}{5}[/tex]

Step-by-step explanation:

Solve for [tex]x[/tex] :

[tex]-25x = 10[/tex]

-Take [tex]25x[/tex] and divide it on both sides of the equation:

[tex]\frac{-25x}{-25} = \frac{10}{-25}[/tex]

[tex]x = -\frac{2}{5}[/tex]

So, the value of [tex]x[/tex] is [tex]-\frac{2}{5}[/tex].

Paul wants to estimate the mean number of siblings for each student in his school. He records the number of siblings for each of 100 randomly selected students in the school. What is the parameter?

Answers

Answer:

A parameter is defined as a numerical or another measurable factor that conforms a set that defines a given system.

In this case, the only parameter that we have is the number of siblings that each one of the 100 students has.

For example, in a table:

#student        #siblings.

     1                       3

     2                       1

     3                        4

      ...                       ...

In the left side, we have the "number of the student" that does not really matter, because the students are randomly selected, and at the right, we can see our only parameter in this study, that is the number of siblings that each student has.

X to the second power(x to the fifth power)

Answers

X to the seventh power

Help needed ASAP will give BRAINLIEST

Answers

Answer:You must divide the equation to get the answer

Step-by-step explanation:

Answer:

4

Step-by-step explanation:

I believe what they're doing is A+B=B+A. If not, rule this answer out.

Choose the midpoint of the line segment with endpoints at (5, 9) and (11, 15).

A) (16,24)
B) (6,6)
C) (8,12)
D) (-6,-6)

Answers

Answer:

C) (8,12)

Step-by-step explanation:

[tex]MP= (\frac{x_1+x_2}{2} )(\frac{y_1+y_2}{2} )\\MP= (\frac{5+11}{2} )(\frac{9+15}{2} )\\MP= (\frac{16}{2} )(\frac{24}{2} )\\MP= (8,12)[/tex]

Please answer this question! it's due in a few hours if you don't mind!

Answers

Answer: 45 Seconds

Step-by-step explanation: Because if you do 3/4=0.75 or 75%. Knowing that a minute is 60 seconds long. 75% of 60 is 45 Seconds.

Hope this helped!

If I want to buy a pair of sunglasses and the original price is $120, how much will I pay if they are 50% off? What if they were 25% off?

Answers

Answer:

$60, $90

Step-by-step explanation:

Amount paid when 50% off

=$ 120 - 50/100 * 120 = $ 120 - $60 = $60

Amount paid when 25% off

=$ 120 - 25/100 * 120 = $ 120 - $30 = $90

solve m = 10x - x for x

Answers

Answer:

X = M/9

Step-by-step explanation:

Please Help! I need the answer.

Answers

Answer:

56

Step-by-step explanation:

If g(x) =4x+2 and f(x) =3x-10

find g(f(3))

Answers

Answer:

[tex]g(f(3))=-2[/tex]

Step-by-step explanation:

So we have the two functions:

[tex]g(x)=4x+2\text{ and } f(x)=3x-10[/tex]

And we want to find g(f(3)).

So, let's find f(3) first:

[tex]f(3)=3(3)-10[/tex]

Multiply:

[tex]f(3)=9-10[/tex]

Subtract:

[tex]f(3)=-1[/tex]

Therefore, we can substitute -1 for f(3):

[tex]g(f(3))=g(-1)[/tex]

Now, find g(-1):

[tex]g(-1)=4(-1)+2[/tex]

Multiply:

[tex]g(-1)=-4+2[/tex]

Add:

[tex]g(-1)=-2[/tex]

And we're done!

So:

[tex]g(f(3))=-2[/tex]

To decorate for a party, Simon needs 1,850 centimeters of colorful streamers. If the ratio of meters to centimeters is 1 : 100, how many meters of streamers does he require?

Answers

The simple answer is 18.5m

Answer:18.5m

1m=100cm

Let lenght of streamers in meters be x

Then(1/100)=(x/1850)

(1850/100)=x

18.5m=x


1/3 (6y - 9) = -2y + 13

Answers

Answer: 3,75 ( 15/4)

Step-by-step explanation:

1/3 (6y - 9) = -2y + 13

6y/3  - 9/3  = - 2y + 13

2y - 2 = - 2y + 13

2y + 2y = 13 + 2

4y = 15

y = 15/4

y = 3,75

Find AC if AB = 17 and BC = 9

Answers

Answer:

ANSWER:-

Step-by-step explanation:

AB+BC=AC

17+9

=26 is the answer.

only question one. please answer and show full working out. will reward with brainliest.

Answers

Answer:

48 meters squared or 48m^2

(Both are correct. Whichever you prefer is fine.)

Step-by-step explanation:

The formula to find area is A=height*base

So since the base = 6 and height = 8

Just multiply to combine the two

6*8=48

If you want to show with only numbers write this.

A=b*h

6*8=48

48 meters squared or 48m^2

Whoever answers first gets the brainliest Given : f(x)=-|x+9|
What direction does the graph move?______ How far?_____
What axis does the graph reflect over?____

Answers

Answer:

See below.

Step-by-step explanation:

f(x) = -|x + 9|

compared to

f(x) = |x|

has a graph that opens downward in an upside down V shape.

It has been moved 9 units left compared to the graph of f(x) = |x|.

It reflects over the x-axis.

Suppose that J and K are points on the number line.
If JK = 10 and J lies at -17, where could K be located?
If there is more than one location, separate them with commas.

Answers

Answer:

-7, -27

Step-by-step explanation:

J is at -17. K is 10 units from J.

Start at point J, -17:

a) If you go 10 units to the right, you end up at -17 + 10 = -7

b) If you go 10 units to the left, you end up at -17 - 10 = -27

J can be at -7 or at -27

Answer: -7, -27

1. Brie knows there is a relationship between the grades on
her math tests and the time she spends studying for those
tests. Identify the independent quantity and the dependent
quantity in this problem situation.

Answers

Time is the independent variable as it can be treated as a controllable constant against which changes in a system can be measured. How much time you spend effects how much time you study, making studying the dependent.  

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