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Ainat [17]
3 years ago
5

A walking track is a fourth of a mile long. How many times would Cara have to walk around it if she wanted to walk 8 miles?

Mathematics
1 answer:
djverab [1.8K]3 years ago
6 0
32 laps

1 mile = 4 laps
8 x 4 = 32 laps
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An experiment consists of flipping a coin, rolling a 15 sided die, and spinning a roulette wheel. What is the probability that t
grin007 [14]

Answer:

There is a 26.39% probability that the coin comes up heads and the die comes up less than 4 and the roulette wheel comes up with a number greater than 17.

Step-by-step explanation:

We have to find the probability of the three separate events, and then multiply them.

coin comes up heads

There is a \frac{1}{2} probability that the coin comes up heads.

the die comes up less than 4

The are 15 sides on the die, from 0 to 14.

The values that satisfy us are 0,1,2,3.

So the probability is \frac{4}{15}.

the roulette wheel comes up with a number greater than 17

There roulette wheel can come from 1 to 36. There are 19 values greater than 17. So this probability is \frac{19}{36}

What is the probability that the coin comes up heads and the die comes up less than 4 and the roulette wheel comes up with a number greater than 17 ?

P = \frac{1}{2}*\frac{4}{15}*\frac{19}{36} = 0.2639

There is a 26.39% probability that the coin comes up heads and the die comes up less than 4 and the roulette wheel comes up with a number greater than 17.

4 0
3 years ago
brenda runs 3 miles every morning.What is the time taken to complete her daily jogging if she jogs one mile in 6 mins
anastassius [24]
6x3=18 so the answer is 18 minutes
8 0
3 years ago
PLEASE IF U CAN PLEASE LAST QUESTION I NEED THIS
Aleks [24]
The answer should be 142.50 square units. The unshaded part is is a triangle and so it’s bh/2 so 19x5/2 which is 95/2 or 47.5. Then the whole entire rectangle is 19x10 so 190. 190-47.5= the shaded region
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3 years ago
What is the discriminant of the polynomial 4x^2+4x+1<br><br> A.) -12<br> B.) -4<br> C.) 0<br> D.) 32
asambeis [7]

Answer:

C.) 0

Step-by-step explanation:

ax^2+bx+c

discriminant

b^2 -4ac

4^2-4*4*1

16-16

0

7 0
4 years ago
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What is half of the sum of 5 and the number p?
mafiozo [28]
Sum is adding
sum of 5 and p is (5+p)
half of that
\frac{5+p}{2}
8 0
3 years ago
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