Mathematics College

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 the given equation. Using this equation, find the maximum height reached by the rocket, to the nearest tenth of a foot.
y=-16x^2+275x+127

Answers

Answer 1

Answer:

1308.6 feet

Step-by-step explanation:

Given is the quadratic equation

y= -16x^2 + 275x + 127

It has the maximum height at its vertex, x-coordinate of which is calculated by the formula:

x = -b/2ax = -275/2(-16) = 8.6 rounded to the nearest tenths

Calculating the highest point:

y = -16(8.6)^2 + 275(8.6) + 127 = 1308.6 feet rounded to the nearest tenths

Related Questions

Help please Number 4!!! Please show me how you did it!!

Answers

I can’t see nothing

10(x + 4) + 15(x + 1)

55 x
25 x + 5
25 x + 55

Answers

Answer:

Step-by-step explanation:

10(x+4)+15(x+1)

10x+40+15x+15

25x+55

what is 1,495 ÷ 45

step by step

without a decimal
​

Answers

Answer:

Step-by-step explanation:

1495/45

factor out what you can

1495/45=299/9

(x - 9)(x - 4)
multiply the binomials

Answers

(X^2-4x-9x+36)
= x^2-13x+36
The answer is x^2 - 13x + 36

Write a division problem such that the quotient is the same as 3/8 ÷ 3/5

Answers

Answer:

5/18 ÷ 4/9

Step-by-step explanation:

because 3/8 ÷ 3/5 equals to  5/8 and 5/18 ÷ 4/9 also equals to 5/8

Answer:

give me brainliest for a free cookie!

Step-by-step explanation:

PLEASE ANSWER
During a flu epidemic the number of sick people triples every week what is the growth rate as a percent ?

Answers

Answer:

2 or 200%

Step-by-step explanation:If the growth rate doubled every week, it would grow by 100% per week. Since the growth rate triples every week, it grows by 200% per week. This is easy to see..... If 1 person is sick at the start.......by the end of the first week, 2 more would be sick. And 2 is 200% of 1. So, 3 people are sick at the end of the first week- triple that of the start. At the end of the second week,  6 more would be sick , and 6 is 200% of 3. So, 9 people total are sick at the end of the second week - triple that of the beginning of the second week

If the area of a circle is 324 cm, find:
Its circumference in terms of pi

​

Answers

Answer:

20.3π cm

Step-by-step explanation:

Area of a circle = 324 square cm

    πr² = 324

   [tex]\frac{22}{7}*r^{2}= 324\\\\ r^{2} = \frac{324*7}{22}\\\\ r^{2}= 103.09\\\\ r =\sqrt{103.09}\\\\[/tex]

  r = 10.15 cm

Circumference = 2πr

                         = 2 *  π * 10.15

                         = 20.3π cm

     

please help please help please help !!!!!!!

Answers

Answer:

Step-by-step explanation:

The graph below shows what you are given. The equation is actually y = x-4

Rachel has $1.32 in pennies and nickels. She has twice as many nickels as pennies. How many nickels does she have?

Answers

Answer:

wwwww

ww

Step-by-step explanation:

ww

There are 12 pennies and 24 nickels

PLEASE ANSWER WILL GIVE BRAINLIEST TO FIRST ANSWER

Answers

Answer:

C, D

Step-by-step explanation:

Because if you're going to make 75 bouquets, you need to distribut the 75 to each plant part.

C is if you did that directly, D is if it was shown with the distributive property

Fifty less than four times a number is ten. What is this number?

Answers

Let the number be x.

The equation is:

4x - 50 = 10

=> 4x = 10 + 50

=> 4x = 60

=> x = 60/4

=> x = 15

So, the number is 15.

I’m so confused help me out

Answers

10%=6.7
6.7x6=40.2%
I hope this helps

Answer:

chicken nuggest

Step-by-step explanation:

becasue i hungry

A jacket is advertised to be 80% of the original price. It the original price is $350, what is the sale price?

Answers

Answer:

70$

Step-by-step explanation:

350 - 80%

Answer:

70

Step-by-step explanation:

350*80=28000

28000/100=280

350-280=70

Nine more than the product of a number and 4 is equal to 7.

Answers

9+4n=7 is the equation


Explanation:


It’s saying product of a number and 4 so we would multiply 4 and a variable (I chose n) then it says nine more than that so you would add that to 4n then it equals 7.

Answer:

equation is 9+(4x) = 7

x = -0.5

Step-by-step explanation:

+ 9 to (4x) equals 7

9 + 4x = 7

4x = -2

x = -0.5

to prove:

9+(-0.5*4) = 7

9 + -2 = 7

7 = 7

HELPWhich of the following number sentences is an example of the identity property of addition?
16 * 0 = 0
8 + 0 = 8
1x4=4
1+11 = 11 + 1

Answers

Answer:

11+11=11+11 i think

Step-by-step explanation:

(18 - 6) x (12 - 4) =

Answers

Answer:

96

Step-by-step explanation:

(18-6) x (12-4) =
(12) x (8) =
(18-6) x (12-4) =
96
:)

Philip can make 125 baskets in 12 days, while Mon can make 132 baskets in 8 days. How many more baskets Philip can make than Mon?

Answers

Answer:

likkeee

Step-by-step explanation:

killing

Answer:

...

Step-by-step explanation:

Philip makes 10.417 baskets a day

Mon makes 16.5 baskets a day

Amelia rented a dvd and it was due to be returned on 26 november
she actually returned it to the shop on 26 december
the rental shop applies a fine for 9p for every day the dvd is overdue
work out the total fine paid by amelia
give your answer in £?

Answers

Step-by-step explanation:

9p*30days= 45p

45÷100=0.45£

The correct answer would be No fine is paid if the DVD is returned by the due date, because the first 0 means it is 0 days overdue, so it is returned on time, and the second 0 means the fine would be $0!!

What’s the least common multiple (LCM) for each group of numbers?

Answers

Answer:

A multiple is the result of multiplying a number by an integer. The least common multiple (LCM) of a group of numbers is the smallest number that is a multiple of all the numbers. To find the least common multiple you need to be able to identify the factors of the numbers you are working with.

Step-by-step explanation:

what group of numbers are you talking about?

Answer:

The LCM is the lowest number two numbers share as factors

Step-by-step explanation:

10-1,2,5,10

20-1,2,4,5,10,20

the LCM besides 1 is 2.

Find the indicated z-score shown in the graph to the right. Area = 0.1401

Answers

Answer:

Sorry i dont do math

Step-by-step explanation:

HELP FIRST GETS BRAINLY

Answers

Answer:

3/21 most simplest form is 1/7

Step-by-step explanation:

PLEAASE HELPPP whoever solves this will mark brainliest

Answers

Answer:

12

Step-by-step explanation:

Perimeter of ΔABC = 12+ perimeter of ΔACD

Perimeter of ΔABC= AC+CB+BA

Perimeter of ΔACD=AC+CD+DA

But, CB=CD +DB

DA ≅DB since there is a ⊥bisector trough D and

Therefore,

Perimeter of ΔABC= (AC+CD+DA)+BA = Perimeter of ΔACD +12 therefore AB=12

GUYS PLEASE HELP:

Evaluate the function
f (x) = 2x+6 for:

f(-19) =

Answers

Answer:

-32

Step-by-step explanation:

f(x) = 2x + 6

f(-19) = 2*(-19) + 6

        = -38 + 6

        = -32

Answer:

-32

Step-by-step explanation:

f(x) = 2x + 6

f(-19) = 2*(-19) + 6

       = -38 + 6

       = -32

Which is a solution to the equation? (x-3)(x-5) = 35

-8
-5
2
10

Answers

[tex]\huge\boxed{\underline{Your\;answer\;is\;-5}}[/tex]

Answer:

-5

Step-by-step explanation:

what is the sulotion of 3^2-[3-4(8-2^2]^2​

Answers

Answer:

i hope your haveing a good day try caculater i dont know

Step-by-step explanation:

125 centimeters to 87.5 cenitimeters

Answers

Answer:

30

%

d

e

c

r

e

a

s

e

Step-by-step explanation:

Giwjchwnvywjtvsovwlby

5 3/9 - 2 8/9 simplified

Answers

Answer:

2 4/9

Step-by-step explanation:


Suppose you put two white socks and one brown sock in a bag and you
choose one sock without looking. You repeat this 15 times. You pulled the
white sock out 12 times. What is the experimental probability?

Answers

Answer:

That you will most likely always get white.

Step-by-step explanation:

Since they got it 13 times.

This hanger is in balance. There are two labeled weights of 4 grams and 12 grams. The three circles each have the same weight.

Answers

Answer:

8/3

Step-by-step explanation:

Answer:

8/3

Step-by-step explanation:

find what percent of 570 is 190​

Answers

Answer:

190/570

Step-by-step explanation:

190/570

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