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sergey [27]
2 years ago
8

If the ball rolled 20 meters in 5 secoundes whats its speed

Mathematics
2 answers:
MaRussiya [10]2 years ago
8 0

Answer:

4 meters/ sec

Step-by-step explanation:

20/5 = 4 Lol

Pls mark brainliest

brilliants [131]2 years ago
3 0

Answer:

20/5=4m/s

Step-by-step explanation:

speed=distance/time

so speed=20/5

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Fred the ant is on the real number line, and Fred is trying to get to the point $0.$
Pavlova-9 [17]

Complete question is;

Fred the ant is on the real number line, and Fred is trying to get to the point 0

If Fred is at 1 then on the next step, Fred moves to either 0 or 2 with equal probability. If Fred is at 2 then on the next step, Fred always moves to 1

Let e1 be expected number of steps Fred takes to get to 0 given that Fred starts at the point 1. Similarly, let e2 be expected number of steps Fred takes to get to 0 given that Fred starts at the point 2

Determine the ordered pair (e1, e2)

Answer:

(e_1,e_2) = (2,3)

Step-by-step explanation:

We can track the probabilities using the scenario that Ant gets to 0 after 1 steps, 2 steps, 3 steps, 4 steps, 5 steps and so on.

This gives us e_1 = 1(1/2^(1)) + 2(1/2²) + 3(1/2³) + 4(1/2⁴) + ...

By arithmetico-geometric series, which is given by;

S_(∞) = [a/(1 - r)] + dr/(1 - r)²

From the online calculator, i got;

e_1 = 2

Similarly, e_2 = 2(1/2^(1)) + 3(1/2²) + 4(1/2³) + 5(1/2⁴) + ...

By arithmetico-geometric series, e_2 = 3,

Thus, (e_1,e_2) = (2,3).

6 0
3 years ago
Evaluate: [(21 + 6) − 32] ÷ 9.2 A) 4. B) 4.6. C) 1. D) 52.
Dima020 [189]
[(21 + 6) - 32] : 9.2 = (27 - 32) : 9.2 = -5 : 9.2 = -46
5 0
3 years ago
What is the sum of 1/2 and 1/3
Vesna [10]
1/2+1/3=
3/6+2/6=5/6
The answer is 5/6.
7 0
2 years ago
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A road has an incline of 10°. To the nearest foot, find the increase in altitude of a car after driving 4,000 feet along the roa
LUCKY_DIMON [66]

Answer:

7

Step-by-step explanation:

Because

6 0
3 years ago
During a sale at a bookstore, a customer buys one book at full price. The customer is given a 25 percent discount on a second bo
RoseWind [281]
Amount paid for the first book is $17.

Amount paid for the second book is 0.75 x 8 = $6

Total amount paid = $17 + $6 = $23

Total full cost of the two books = $17 + $8 = $25

Amount of discount = $25 - $23 = $2

% reduction = \frac{2}{25} \times100\%=8\%

Therefore, the <span>percent of the total cost of the two books reduced during the sale</span> is 8%
6 0
3 years ago
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