1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valkas [14]
3 years ago
13

A rocket is launched from a tower. The height of the rocket, y in feet, is related to the time after launch, x in seconds, by th

e given equation. Using the equation, find out the time at which the rocket will reach its max, to the nearest 100th of a second y=-16x^2+235x+133
Mathematics
1 answer:
jeka943 years ago
6 0

Answer:

Step-by-step explanation:

Given tq equation of the height reached by the rocket as y=-16x^2+235x+133

The velocity of the object at its maximum height is zero

v = dy/dx = 0(at max height)

v =-32x +235

0 =-32x+235

x = 235/32

x = 7.34

Hence the rocket will reach its maximum height after 7.34seconds

You might be interested in
2b+8-5b+3=-13+8b-5<br> b=?
irina1246 [14]

Answer:

b=4

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Х- 1, 2, 3 ,4
Len [333]
I think it’s C, good luck
4 0
3 years ago
Ten samples were taken from a plating bath used in an electronics manufacturing process, and the bath pH was determined. The sam
Korolek [52]

Answer:

There is no sufficient evidence to support the claim.

Step-by-step explanation:

Given the data:

7.91, 7.85, 6.82, 8.01, 7.46, 6.95, 7.05, 7.35, 7.25, 7.42

Sample size, n = 10

The sample mean, xbar = ΣX/ n = 74.07 / 10 = 7.407

The sample standard deviation, s = 0.41158 ( from calculator)

The hypothesis :

H0 : μ = 7

H0 : μ ≠ 7

The test statistic :

(xbar - μ) ÷ (s/√(n))

(7.047 - 7) ÷ (0.41158/√(10))

0.047 / 0.1301530

Test statistic = 0.361

Testing the hypothesis at α = 0.05

The Pvalue ;

df = n - 1 ; 10 - 1 = 9

Two tailed test

Pvalue(0.361, 9) = 0.7263

Since the Pvalue > α ; we fail to reject the Null and conclude that there isn't sufficient evidence to support the claim.

4 0
3 years ago
17x-3y=4 2x-4y=1 the solution to the system of equations is
Burka [1]

ANSWER

x=\frac{13}{62}

and


y= \frac{-9}{62}e have



EXPLANATION




17x-3y=4---(1)


2x-4y=1



Let us make y the subject and call it equation (2)


2x=1+4y


x=\frac{1}{2}+2y--(2)



We put equation (2) in to equation (1)




17(\frac{1}{2}+2y)-3y=4


\frac{17}{2}+34y-3y=4



34y-3y=4- \frac{17}{2}


Simplify to get,



31y= \frac{8-17}{2}



31y= \frac{-9}{2}


Divide both sides by 31,



y= \frac{-9}{2} \div 31



y= \frac{-9}{2} \times \frac{1}{31}




y= \frac{-9}{62}


We put this value in to equation (2) to get,



x=\frac{1}{2}+2\times -\frac{9}{62}




x=\frac{1}{2} -\frac{18}{62}


We collect LCM to obtain,



x=\frac{31-18}{62}



x=\frac{13}{62}








7 0
3 years ago
If there are 3 people in a room, the probability that they all have the same birthday is
Nostrana [21]
There is .82% chance they will have the same bdays
7 0
3 years ago
Other questions:
  • What is the measure of angle A to the nearest degree
    7·2 answers
  • Huan deposited $900 into a college savings account earning 4.6% interest compounded annually. He also deposited $900 into a seco
    8·1 answer
  • If x^2+1/x=18 then find The value of x minus 1/x
    12·1 answer
  • Warm Up
    9·1 answer
  • A 5-pound of flour costs $4.80. For this bag of flour, what is the cost of flour per ounce?
    15·1 answer
  • You want to find the equation for a line that passes through the point (3,-4) and has a slope of -1/2.
    5·1 answer
  • Step by step what is 3a+4b+5a+6
    10·1 answer
  • What is the largest number that can go into all three of these numbers:
    11·2 answers
  • !!HELP ASAP PLZ!!
    12·2 answers
  • The diagram shows MNP. Which term describes point Q?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!