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
Doss [256]
4 years ago
6

An object is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform. The equation for the object's height s at

time t seconds after launch is s(t) = –4.9t^2 + 19.6t + 58.8, where s is in meters. When does the object strike the ground?
Mathematics
1 answer:
Elina [12.6K]4 years ago
4 0
So the question sets the problem with a bunch of different values given but it goes ahead does the work of putting them into an equation, since this equation they made gives us the position, when it is equal to zero the object has impacted the ground. Setting it to zero allows us to solve for t, the time at which it strikes the ground.


0 = -4.9t^2 + 19.6t + 58.8, because this is a quadratic, and a complicated one at that, we will use either a calculator, or the quadratic formula to solve for t.

No matter what way you solve it you will get two values, only the positive value applies because a negative value for time is illogical.

The answer is at t = 6 seconds
You might be interested in
Evaluate the following expression.
VARVARA [1.3K]

Answer:

im pretty sure its -1

Step-by-step explanation:

hope this helps :)

7 0
3 years ago
Read 2 more answers
How do you solve -9=x-3
Ede4ka [16]

Answer:

Step-by-step explanation:

-9= x -3  (add 3 to both sides of the equal sign)

-9+3  = x -3+3

-6 = x

solved  :)

8 0
3 years ago
Read 2 more answers
3 PART QUESTION!
Illusion [34]

Answer:

See below

Step-by-step explanation:

<u>Given relationship:</u>

  • d = rt

a) r = 3, d = 4

  • t = d/r = 4/3 h = 1 h 20 min

b) d = 4 miles, rate = r

  • t = 4/r, domain is r and must be greater than zero

c) d = 4 miles, time = t

  • r = d/t = 4/t, domain is t and it must be greater than zero

d) t = 3 h, rate = r

  • d = rt = 3r, domain is r and can be anything greater than zero
5 0
3 years ago
if a population of 100 cells triples every hour, which function represents p(t), the population after t hours?
-BARSIC- [3]
100t would be what you would use and once you know how many hours or need to find the number of cells you substitute
5 0
3 years ago
Read 2 more answers
¿En què situaciones usamos los nùmeros enteros positivos y negativos, escribe 2 ejemplos de cada uno? Por favor para ahora hocin
natulia [17]

Respuesta:

Los enteros positivos, o números enteros, se utilizan de muchas maneras durante la vida diaria. Los números de carretera se contabilizan junto con los límites de velocidad de la carretera. Los enteros se utilizan para comprender qué velocidad conducir en una carretera determinada. Los números en los relojes se utilizan para entender la hora y para configurar las alarmas del reloj. Hay números en edificios y casas para identificar direcciones y números para los niveles de piso dentro de los edificios. Los mapas utilizan enteros para proporcionar dirección e información. Los enteros negativos pueden ser menos obvios para su uso en la vida cotidiana. Algunos ejemplos de uso negativo de enteros incluyen las lecturas del termómetro, manteniendo la puntuación en un juego de hockey, altitud y bancos. Aunque todos estos ejemplos utilizan enteros positivos, también utilizan enteros negativos. Un termómetro utiliza negativo enteros para representar temperaturas por debajo de cero. En hockey, cuando el otro equipo anota en la línea del primer equipo, es un menos, pero cuando el primer equipo anota, es un plus. La altitud que está por debajo del nivel del mar está representada con números negativos. Los bancos y las cooperativas de crédito representan débitos con enteros negativos y créditos con enteros positivos.

8 0
3 years ago
Other questions:
  • Let X be a random variable with probability density function fX(x) = ( c(1 − x 2 ) if − 1 &lt; x &lt; 1 0 otherwise. a) What is
    14·1 answer
  • One of the fastest recorded speeds during the hundred meter dash is 10.4 m/s. Approximately, what is this speed in miles per hou
    7·1 answer
  • A restaurant noted what type of food its customers ordered last week. Here are the results:
    11·2 answers
  • If four desk lamps cost $120 what is the average cost per lamp 20.00 25.00 30.00 35.00 40.00?
    14·1 answer
  • At what point does the line given by the following equation cross the x-axis? -3/7x+6
    12·2 answers
  • CAN SOMEONE PLZ PUT THIS EQUATION IN SLOPE INTERCEPT FORM AND EXPLAINN
    14·2 answers
  • camile mowed lawns for 3 hours and earned $6.80 per hour.then ahe wates windows for 2 hours and earns $6.20 per hour.what were c
    9·1 answer
  • Which graph represents the relationship between the quantities in this situation? Explain how you know​
    5·1 answer
  • If f(x) = x4 – 4x3 + 1, then what is the remainder when f(x) is divided by<br> X - 6?
    8·1 answer
  • Question 13 (2 points)
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!