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Sedbober [7]
2 years ago
10

Nicole won 85 super bouncy balls playing

Mathematics
1 answer:
Helen [10]2 years ago
7 0

Answer:

20 friends

Step-by-step explanation:

85 balls - 5 remaining = 80

80 ÷ 4 balls each = 20 friends

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Mice21 [21]
Answer: 1) 67.2 $
2) 44.8 g
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3 years ago
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Need help will give 5 stars.
olga_2 [115]

Answer:

t=0.64

Step-by-step explanation:

h = -16t^2 +4t +4

We want h =0 since it is hitting the ground

0 = -16t^2 +4t +4

Using the quadratic formula

a = -16  b = 4  c=4

-b ± sqrt( b^2 -4ac)

----------------------------

         2a

-4 ± sqrt( 4^2 -4(-16)4)

----------------------------

         2(-16)

-4 ± sqrt( 16+ 256)

----------------------------

         -32

-4 ± sqrt( 272)

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         -32

-4 ± sqrt( 16*17)

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         -32

-4 ± sqrt( 16) sqrt(17)

----------------------------

         -32

-4 ± 4 sqrt(17)

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         -32

Divide by -4

1 ±  sqrt(17)

----------------------------

         8

To the nearest hundredth

t=-0.39

t=0.64

Since time cannot be negative

t=0.64

7 0
3 years ago
Read 2 more answers
I need help with this one question.
Tom [10]

Answer:

answer a

Step-by-step explanation:

3 0
3 years ago
Liability insurance covers any damage you might do to the apartment building. Contents insurance covers all your belongings. You
romanna [79]

Answer:

I believe that it would just be 20% of the $45 which would mean that you would have to pay $36 a month.

Hope this is helpful!

7 0
3 years ago
Five students, adriana, ben, chandra, diana, and ernesto, would each like one of the four spots at the regional science fair. Th
krok68 [10]

The theoretical probability that Chandra will be chosen as one of the science fair participants is 0.8 or 80%.

<h3>What is theoretical probability?</h3>

Theoretical probability of an event is the ratio of number of favourable outcome to the total expected number of outcome of that event.

Five students, Adriana, Ben, Chandra, Diana, and Ernesto, would each like one of the four spots at the regional science fair.

Their names are placed in a hat, and four names are chosen at random to decide who attends the fair.

  • The total number of names are 5.
  • The total number of names chosen are 4.

The total number of ways 4 names can be taken out from 5 names is,

^5C_4.

Here one spot needs to be fixed for Chandra. Now the total number of outcome remain 4 and favourable outcome remain 3.

Thus, the number of ways 4 names can be taken out such that it contains the name Chandra is

^4C_3.

The theoretical probability that Chandra will be chosen as one of the science fair participants is,

P=\dfrac{^4C3}{^5C4}\\P=\dfrac{4}{5}\\P=0.8\\P=80\%

Thus, the theoretical probability that Chandra will be chosen as one of the science fair participants is 0.8 or 80%.

Learn more about the theoretical probability here;

brainly.com/question/8652467

#SPJ1

5 0
1 year ago
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