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Whitepunk [10]
3 years ago
11

When Mr. Smith kicks a football, it has a vertical speed of 20 m/s, and its height, h in meters after t seconds can be modeled b

y the equation h=20t−5t^2 .
Part A.
How long is the football in the air before it lands on the ground?
​
seconds

Part B
In how many seconds will the football reach its maximum height?
​
seconds
​
​Part C
​What is the maximum height that the football will reach?
​
meters
Mathematics
1 answer:
adelina 88 [10]3 years ago
6 0

Answer:

look up desmos and do it on there it helps alot

Step-by-step explanation:

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Please help asap 18 pts + brainliest to right/best answer
saul85 [17]

Which two numbers add up to -29 and multiply to 100?

-25 and -4

Rewrite the expression

<u>(x - 25)(x - 4)</u>

7 0
3 years ago
URGENT!!! plz help will give brainlist question is in photo
grandymaker [24]
Answer:

x = 3

Explanation:

15x + 5 + 22x + 4 + 60 = 180

37x + 69 = 180

37x = 111

x = 3
3 0
2 years ago
My brother told me he will give me $.25 per day for 10 days OR he will give me $.01 then give me double the following day for 10
NARA [144]

Answer:

you will get more money if he gives you 1 cent per day then doubles it

Step-by-step explanation:

if your brother gives you 25 cents per day, at the end of 10 days you will have $2.50

if he gives you 1 cent per day then doubles it, this will be your daily earnings:

day 1- 0.01

day 2- 0.02

day 3-  0.04

day 4- 0.08

day 5- 0.16

day 6- 0.32

day 7- 0.64

day 8- 1.28

day 9- 2.56

day 10- 5.12

then when you add all of this up, you would recieve 10.23 cents at the end of day 10

4 0
2 years ago
There are 32 students in a class.Nine of those students are women.What percent are men?(round nearest tenth)
Stels [109]
Hey there!
Find out how many men there are by subtracting the number of woman by the total number of students
32-9= 23
23 students are men
To find the percent just simply multiply. *cross multiply
23/32 *100= 71.87
100*23= 2300
2300/32= 17.875

17.875 rounds to 17.9

71.9% are men
7 0
3 years ago
Read 2 more answers
Determine if the relation is a function. <br><br> (−1,4),(2,4),(3,0),(1,7)
vlada-n [284]

Answer:

It is a function

Step-by-step explanation:

The x values are different; if they were to be the same, such as (1,7),(2,8),(1,9) it would be incorrect.

7 0
3 years ago
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