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
Nadya [2.5K]
3 years ago
9

The path of firework is modelled using the equation h= -5d2+20d+1 what is the maximun height?

Mathematics
1 answer:
ohaa [14]3 years ago
8 0
h=-5d^2+20d+1\\h'=-10d^2+20d=0\\-10d(d-2)=0\\d=0,2\\\\h=-5(2)^2+20(2)+1\\h=-5(4)+40+1\\h=-20+41\\h=21

21 units
You might be interested in
What is the percent increase from 50 to 92
STALIN [3.7K]
Hey!

To find the percentage increase, you must use this formula:

{(50 - 92 / 50] × 100 = 84%

So, the percent increase from 50 to 92 is: 84%.
3 0
3 years ago
Read 2 more answers
A(n) = -5 + 6(n - 1)a(n)=−5+6(n−1)a, left parenthesis, n, right parenthesis, equals, minus, 5, plus, 6, left parenthesis, n, min
DENIUS [597]

Answer:

The 12th term is 61

Step-by-step explanation:

I will assume that your a(n) = -5 + 6(n - 1) is correct; the rest is redundant (duplicative, unneeded).

To find the 12th term, substitute 12 for n in the above formula:

a(12) = -5 + 6(12 - 1) = -5 + 6(11) = 66 - 5, or 61

The 12th term is 61

6 0
3 years ago
-3x(x - 4) + 2 - (5 - x)
Readme [11.4K]

Answer:

- 3x(x - 4) + 2 - (5 - x) \\ =   - 3 {x}^{2}  + 12x + 2 - 5 + x \\  =  - 3 {x}^{2}  + 13x - 3

I hope I helped you^_^

3 0
3 years ago
Read 2 more answers
What is 0.34 miles per hour converted into a fraction or decimal?
Eddi Din [679]

Answer:

Step-by-step explanation:

it is 17/50 or 34%

8 0
3 years ago
Expand x(x – 4)<br> Please answer!!! I will mark you as brainliest if you answer and its right!!
Mekhanik [1.2K]

The expression x( x - 4 ) when expanded is x² - 4x

An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles.

When a bracket is expanded, each term is multiplied by the expression outside of the bracket.

The distributive property states that multiplying the sum of two or more addends by a number yields the same outcome as multiplying each addend separately by the number and combining the resulting products.

Consider the expression,

x( x - 4 )

Let us assume y = x( x - 4 )

Using the distributive property, a( b + c ) = ab + ac

y = x( x - 4 )

y = x · x - x · 4

y = x² - 4x

Therefore, x( x - 4 ) = x² - 4x

Therefore, the expression when expanded is x² - 4x.

Learn more about expression here:

brainly.com/question/1859113

#SPJ1

6 0
1 year ago
Other questions:
  • A population of 1,750 cheetahs decreases by 11% per year. How many cheetahs will there be in the population after 10 years?
    15·2 answers
  • What is 22, 119 rounded to the nearest hundred
    10·2 answers
  • Each year, roughly 10^6 computer programmers each make about $105. How much money is this all together? Express your answer both
    9·1 answer
  • Assume a class has 19 members
    15·1 answer
  • Write an equation of the line below.
    10·1 answer
  • What is the coefficient of 12x -50=460
    6·2 answers
  • Ernesto brought plastic tubes that are each 5.3 meters long. If Ernesto makes a line of 18 tubes by placing the end-to-end, how
    14·1 answer
  • Complete the following.
    7·1 answer
  • Whart is 50x+56=<br><br><br><br> what is it!!
    8·2 answers
  • A rectangular swimming pool is 15 meters long, 14 1/2 meters wide, and 3 1/2 meters deep. What is its volume? in cubic meters
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!