The velocity of a roller coaster as it moves down a hill is v=√v²+64h. where v is the initial velocity and h is the vertical drop in feet. the designer wants the coaster to have a velocity of 200 feet per second when it reaches the bottom of the hill. if the initial velocity of the coaster is 30 feet per second, how high should the designer make the hill?
Answers
Answer: So required height is 124.22feets.
Step-by-step explanation:
Related Questions
The width of the rectangle is 50% If its is 18 length is the area of the rectangle
Answers
Answer: A rectangle has a length of 8 inches and a width of 5 inches. If its length is increased by 50% and - Brainly.com A rectangle has a length of 8 inches and a width of 5 inches. If its length is increased by 50% and its width is reduced by 25%, find the percent change in the area of the rectangle. What do you need to know? Rate! Rate!
Step-by-step explanation:
WOODLL PUNTO. CU
Level 3: Proficient (Must do Level 2)
The school that Kathryn goes to is selling tickets to a spring musical. On the first
day of ticket sales the school sold 6 adults tickets and 9 child tickets for a total
of $114. The school took in $132 on the second day by selling 12 adult tickets
and 2 child tickets. Find the price of ản adult ticket and the price of a child ticket.
Price of the adult ticket:
Price of a child ticket:
1
2
3
4
Next
Answers
Answer:
15+7=22
Step-by-step explanation:
Set up the equations.
Martina and Ashanti worked together on an art project. They began working at 3:25 p.M. And finished working at 5:15 p.M. How long did the girls work together on their art project?
Answers
Answer:
The girls worked together on their art project for 1 hour and 50 minutes.
Step-by-step explanation:
In order to find the answer you have to find the difference between the time they began working and the tine they finished working. You have to subtract 3:25 from 5:15.
Since 25 minutes on the time they began working is higher than 15 minutes, you have to subtract 1 from the time they finished working that is 5 hours:
5-1=4
Then, you have to increase the minutes on the time they finished working by 60:
15+60=75
Now, you have to subtract the minutes which would be 25 from 75:
75-25=50
Finally, you have to subtract the hours which would be 4 minus 3:
4-3=1
The result would be 1 hour and 50 minutes.
According to this, the answer is that the girls worked together on their art project for 1 hour and 50 minutes.
To find the average of some quantities , add them together and then divide the total by the number of
Answers
Answer:
quantities or total number of observations
Step-by-step explanation:
Average also known as mean is a measure of central tendency. It is determined by adding the numbers together and dividing it by the total number
Average = sum of the numbers / total number
For example, there are 3 numbers 3 , 6, 9
Average = ( 3 + 6 + 9) / 3 = 18 / 3 = 6
After 10 weeks of work, bob has $1200. After 15 weeks of work Bob has $1800. After 20 weeks of work Bob has $2400. Write the firs four terms of a sequence that represents this situation. Writ and equation to model the situation
Answers
Answer:
1200,1800,2400,3000
5x = 600x
Step-by-step explanation:
The first four terms would be
1200,1800,2400,3000
As we can see that
After 10 weeks of work bob has $1200
After 15 weeks of work, bob has $1,800
So the more the weeks would be, the more the earnings it is
And, the difference of the earnings is
= $1,800 -$1,200
= $600
The equation would be
5x = 600x
So if we assume x = 1
So
5 = 600
if we assume x = 2
So
10 = 1200
and so on
Solve for x.
5x - 5 = x + 15
Answers
x = 5
I hope this helped :D
Answer:
x=5
Step-by-step explanation:
5x-5=x+15
-x =-x
4x-5=15
+5=+5
4/4x=20/4
x=5
For what value(s) of w does the equation 7 + 3x - 1 = w(x + 2) have infinitely many solutions?
Answers
Answer:
w=3
Step-by-step explanation:
7 + 3x - 1 = w(x + 2)
Solve for w
Distribute
7 + 3x - 1 = wx + 2w
Combine like terms
3x+6 = wx+2w
For this to have infinite terms
3x = wx and 6 = 2w
3x = wx
Divide by x
3 =w
and 6 = 2w
Divide by 2
6/2 = 2w/2
3 =w
When w = 3, there will be infinitely many solutions
Ill mark brainiest if right!!! A Choose... is a quadrilateral that has only one pair of parallel sides.
1. Rectangle
2. Trapezoid
3.Rhombus
Answers
Answer:2
Step-by-step explanation:
I am SO SORRY I DID NOT MEAN TO PUT THAT YOUR ANSWER DIDNT HELP!! ithink it helped alot!! i accidently pressed the wrong thing now i cannot change it!! Thank you!
Answers
Answer:
UMMMM I don't know what happened with your account but thanks for the points
What is the one shape of cross-section we could create by slicing the cone parallel to its base?
Answers
Answer:
Circle
Step-by-step explanation:
A cross section of a cone sliced parallel to iits bases is a circle and a rectangle when sliced perpendicular to its bases.
Answer:
its a circle
Step-by-step explanation:
got this from Khan and micaelaamisial :)
A shirt was originally priced at $55. The store is having a 35% off sale. How much will you pay for the shirt after the discount
Answers
Answer:
$35,75
Step-by-step explanation:
55 . 35 / 100 = 19,25
55 - 19,25 = 35,75
What is the area of
28
105
38.5
49
Answers
Answer:
105
Step-by-step explanation:
11×14= 154
7×7= 49
154-49= 105
Answer:
105 is ur answer!
you're welcome lol
During a game of roulette, a wheel is spun and a ball drops randomly into one of the wheel's
numbered compartments. Then the process is repeated with another random spin.
Are these two events dependent or independent?
dependent
independent
Answers
Answer:
Independent is the correct answer
Step-by-step explanation:
Name an angle of
C) 140°
Answers
Answer:
angle C is 90°
Step-by-step explanation:
(sorry if thats not the answer the question is confusing)
have a nice day!! :)
which set of polar coordinates describes the same location as the rectangular coordinates (3, 0)?
Answers
Answer:
(3,0°)
Step-by-step explanation:
a p e x
Answer:
(3, 0 degrees) is the right answer
Step-by-step explanation:
Use tan(theta)=y/x for theta and
x^2+y^2= r^2 for the r value
Given that the measurement is in centimeters, find the circumference to the nearest tenth.
A: 28.3cm
B:56.5cm
C:63.6cm
D:254.3cm
Answers
A construction company spends w weeks extending an existing road. The existing road is 5 miles long. Each week the company completes 0.2 miles of the extension. Which equation models the total length (L) of the road?
A. L = 0.2w + 5
B. L = 0.2w - 5
C. w = 0.2L + 5
D. w = 0.2L - 5
Answers
Answer:
L = 0.2w + 5
Since there is already 5 miles, your adding 0.2w. Its not 0.2L because that is the total length and its the sum.
Answer:
L= 0.22+5
I did packet
1. A chlorine atom has a net charge of zero. What is the net charge on the chlorine atom
after it gains an electron with a charge of -1
A. - 2
B. -1
C. 0
D.+1
Answers
IM STRUGGLING PLEASE HELP ILL GIVE YOU BRAINIEST :(((
(If your good at math)
Answers
Answer:
1437.33 cm^3 , 75.4 km^3
Step-by-step explanation:
1.
V = (lwh)/3
V = (14 x 14 x 22)
V = 1437.33 cm^3
2.
V = [tex]\pi r^{2} \frac{h}{3}[/tex]
V= [tex]\pi 3^{2} \frac{8}{3}[/tex]
V = 75.4 km^3
Mr. D'Agostino decided he wanted to build a pool in his backyard this summer. He sketched a drawing that had a scale of 1 in. = 4 feet. If the drawing had a length of 4 feet and a width of 5 feet, what is the actual area of the pool?
Answers
Answer:
46080 ft²
Step-by-step explanation:
Given :
Scale :
1 in = 4 feets
Recall :
I foot =. 12 inches
Length of drawing = 4 feets
Length of drawing in inches = 4 * 12 = 48 inches
Width of drawing = 5 feets
Width of drawing in inches = 5 * 12 = 60 inches
Actual length of pool = 48 * 4 = 192 feets
Actual width of pool = 60 * 4 = 240 feets
The actual area of the pool :
Length * width
192 feets * 240 feets = 46080 ft²
Find the area of a triangle with a base of 9 feet and hypotenuse length of 13 feet
Answers
Answer:
42.21 ft^2
Step-by-step explanation:
The formula: A=1 /2b √ c2﹣b2
c=hypotenuse
b=base
A grocery store sells three sizes of bags of one brand of potato chips. The big bag is 14 ounces and costs $6.30. The medium bag is 9.75 ounces and costs $2.50. The small bag is 8 ounces and costs $2.48. What is the cost per ounce of the medium bag size?* Your answer O This is a required question
Answers
Answer:
$0.26 (2.dp)
Step by step explanation:
The cost per ounce will be equal to $0.9.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that a grocery store sells three sizes of bags of one brand of potato chips. The big bag is 14 ounces and costs $6.30. The medium bag is 9.75 ounces and costs $2.50. The small bag is 8 ounces and costs $2.48.
The cost per ounce for medium size bag is calculated as,
2.75 ounces = $2.5
1 ounce = 2.5 / 2.75
1 ounce = $0.9
To know more about an expression follow
https://brainly.com/question/9117573
#SPJ2
Can anyone help me please?
Answers
Step-by-step explanation:
5.slope=0
6.equation=y=5
7.slope=undefined(no Slope)
8.equation=x=-1
nadu has finished 2/5 of his job in May, then finished 60% of the remaining job in June. How many percent of the job has he finished in total?
Answers
Answer: the two men work 5 hours per day, ... 75 people work 8 hours daily to complete a job in 27 days. ... How many hours per day should she work to finish the same piece of work in 7
Step-by-step explanation:
Answer:
96%
Step-by-step explanation:
I really need to know what in the world is 1+1 i’ve been trying to find the answer all day
Answers
Please help
NO LINKS
IM DESPERATE
LINKS= REPORT
2 QUESTIONS
Answers
first answer is (c)
second answer is (a)
Haley has three times as many stuffed animals as she does dolls. Her brother has 15 more video games than Haley has stuffed animals. If Haley has 15 dolls, how many video games does her brother have? A. 228 B. 60 C. 33 D. 30
Answers
Answer:
60
Step-by-step explanation:
stuffed animals = 3 x dolls eqn 1
video games = 15 + stuffed animals eqn 2
dolls = 15
replace for dolls in eqn 1
stuffed animals = 15 x 3 = 45
substitute for stuffed animals in eqn 2
45 + 15 = 60
If 2% of a number equals 9, find 4% of that number.
Answers
Answer:
18
Step-by-step explanation:
The number you are getting the percent from is 450
Alex, Hans and Stan saved up some money to buy a tent for a camping trip. Stan saved 60% of the price. Alex saved 40% of what was left of the price and Hans’ share of the price was €30. What was the price of the tent?
Answers
Answer:
What is the smallest number you can form with the given cards? ... Alex, Hans and Stan saved money to buy a tent for a camping trip. Stan ... Alex saved 40 % of what was left of the price.
HELP PLEASE!!!!! 13 POINTS!!! WILL GIVE BRAINLIEST!!!
Which exponential expression is equivalent to the one below? (7x2)^5
Answers
Answer:
The 2nd option is the correct answer - 7⁶ . 2⁶
B. 7^6*2^6