3 years ago

What is the probability that on 9 tosses of a fair coin, at least one tail will appear?

Mathematics

1 answer:

pogonyaev3 years ago

7 0

Wdym

Like can you be specific

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Happy Paws charges $22.00 plus $4.50 per hour to keep a dog during the day. Woof Watchers charges $11.00 plus $5.75 per hour. Wr

AleksAgata [21]

Answer:

Total amount charged by Happy Paws = 22 + 4.50h

Total amount charged by Woof Watchers = 11 + 5.75h

3.2 hours

Step-by-step explanation:

Total amount charged by Happy Paws = 22 + 4.50h

Total amount charged by Woof Watchers = 11 + 5.75h

22 + 4.50h = 11 + 5.75h

Collect like terms

22 + 11 = 4.5h + 5.75h

33 = 10.25h

Solve for h

33/10.25 = h

h = 3.22

8 0

3 years ago

A car is driving at 100 kilometers per hour. How far does it travel in 2 seconds?

Alisiya [41]

Answer:

$\frac{1}{18}\ km$ or $\frac{500}{9}\ m$

Step-by-step explanation:

Remember that

1 hour=3,600 seconds

by using proportion

$\frac{100}{3,600}\frac{km}{sec} =\frac{x}{2}\frac{km}{sec} \\ \\x=2*100/3,600\\ \\x=\frac{1}{18}\ km$

Convert to meters

$(1,000)*(\frac{1}{18})=\frac{500}{9}\ m$

6 0

3 years ago

djyliett [7]

nah it is all messed up

5 0

3 years ago

The height of a giant sequoia tree is proportional to its age. Use the graph to determine how long it takes for a giant sequoia

Kitty [74]

Answer:

Hi- It takes about 50 years. Just write the 50 not the sentence lol

6 0

3 years ago

If it rained on 3 days out of 20 days on what percent of the days did it rain

Andrei [34K]

It rained on 15% of those days

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3 years ago

Read 2 more answers