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Shtirlitz [24]
3 years ago
11

A baseball is thrown from the top of a building and falls to the ground below. The height of the baseball above the ground is ap

proximated by the relation h = -5t2 + 10t + 15, where h is the height above the ground in metres and t is the elapsed time in seconds. Determine the maximum height that is reached by the ball.
Mathematics
1 answer:
lidiya [134]3 years ago
5 0
Kstsskts stsxaeUzt. awyararka euaya
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2.
Artyom0805 [142]

Answer:

3x+3=2x

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Bob and Carol are making glass dolls. On average, they break 12% of the dolls. Today, they only broke 2/3 as many dolls as usual
konstantin123 [22]
If you would like to know how many dolls did Bob and Carol break today, you can calculate this using the following steps:

On average, they break: 12% of 175 = 12/100 * 175 = 21 dolls.
Today: 2/3 as many dolls as usual = 2/3 * 21 = 14 dolls

Result: Bob and Carol broke 14 dolls today.
7 0
3 years ago
Could you please explain it?
Troyanec [42]
Hello,
there are some words that I could not read. But:
I support evements are independants.
p(s)=0.2
p(l)=1-0.2=0.8 l=lose

1)0.8*0.2=0.16

2) 0.8²*0.2=0.128

3) 0.8^3*0.2=0.1024

4) 0.2*0.8^(n-1)

6 0
3 years ago
Two boats leave a port at the same​ time, one going north and the other traveling south. The northbound boat travels 18 mph fast
shutvik [7]

Answer:

10 hours

Step-by-step explanation:

Two boats leave a port at the same​ time, one going north and the other traveling south.

<u>Southbound boat rate</u> = 40 mph

The northbound boat travels 18 mph faster than the southbound boat.

<u>Northbound boat rate</u> = 40 + 18 = 58 mph

Two boats rate = 40 + 58 = 98 mph (this means they are apart 98 km after one hour)

Total distance = 980 miles

Total rate = 98 mph

Time =980:98=10 hours

3 0
2 years ago
PLEASE HELP ITS EASY BUT LIKE yh
hjlf

Answer:

40  I told u

Step-by-step explanation:

right angles are 90 degrees

4 0
3 years ago
Read 2 more answers
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