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
tiny-mole [99]
4 years ago
9

Someone please help with parts a b c and d. I will mark brainlest!!!

Mathematics
1 answer:
maria [59]4 years ago
6 0

Answer:

A. 49 feet

B. 66 feet (round to the nearest foot)

C. 4 seg

Step-by-step explanation:

A. What is the height of the ball after 3 seconds?

For t=3 seg

h(3)=-16(3)^{2} +63(3)+4

h(3)=-144+189+4\\h(3)=-144+193\\h(3)=49 feet

B. What is the maximum height of the ball? round to the nearest foot

h(t)=-16(t)^{2} +63(t)+4\\h'(t)=-32(t) +63\\

then

-32(t)+63=0\\t=\frac{-63}{-32}\\t=1.969seg

For t=1.969seg

h(1.969)=-16(1.969)^{2}+63(1.969)+4\\h(1.969)= 66.016\\h(1.969)=66 feet

C. When will the ball hit the ground?

The ball will hit the ground when h(t)=0

so, -16t^{2} +63(t)+4=0

Using the quadratic equation

t=4seg

You might be interested in
11/14+(-1/4)
nikitadnepr [17]

Answer:

15/28 or 0.53 decimal form

Step-by-step explanation:

11/14 + (-1/4)

11/14 + -1/4

= 15/28 or 0.53 decimal form

8 0
3 years ago
Read 2 more answers
A store sells a package of 12 trading cards for $4.92. Explain how you can tell the price per card is less than $1. What is the
andrezito [222]

4.92/12 is equal to .41 meaning that it's below $1 and the unit price is $.41

3 0
3 years ago
Find (3+1) x (5+1) using the distributive property.
Georgia [21]

Answer: 24?

Step-by-step explanation: I am not 100% Its been a while since I used my math properties

7 0
3 years ago
Read 2 more answers
SOLVE this here 2(2x-8)<2(-x+9)+2
AveGali [126]
First let's distribute to our parenthesis to get:

4x-16<-2x+18+2

Not combine like terms on both sides:
4x-16<-2x+20

Let's add 2x to both sides:
6x-16<20

Add 16 to both sides:
6x<36

Divide by 6:
X<6

I hope this Helps!
6 0
3 years ago
The scale on a map shows that 10 kilometers is represented by 4 centimeters. Which proportion can be used to find the actual dis
Illusion [34]
10/4=x/20
Your answer will be x=50 kilometers
3 0
4 years ago
Read 2 more answers
Other questions:
  • Find a third point on the line that passes through (4, 1) and (0, 3)
    5·1 answer
  • Use the table to write and solve an equation to tell you the number of minutes for which the cost of both phone companies is equ
    14·2 answers
  • Three dozen eggs cost $18.00, How much would one egg cost?
    10·2 answers
  • Which is the decimal form of 92/ 125​
    14·2 answers
  • Problem 2-11 (Algorithmic) Let A be an event that a person's primary method of transportation to and from work is an automobile
    14·1 answer
  • If v varies directly with g, and v = 36 when g = 4, what is the value of v when g = 11?
    10·1 answer
  • Sandra saves 12% of her salary for retirement. This year her salary was $3000 more than in the previous year, and she saved $420
    6·1 answer
  • Help please picture down below&lt;3
    13·1 answer
  • Please solve these two questions! Please explain as to how you got the answers as well!
    13·1 answer
  • (7,5),(x,2); m=3/4 find the slope… ty! :)
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!