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lys-0071 [83]
4 years ago
9

How do you find the probability of question a,b&c ?

Mathematics
1 answer:
Mamont248 [21]4 years ago
5 0
P(3 or more heads) = p(3 or 4 heads) = 4/16 + 1/16 = 5/16

p(at most 2 heads) = p(0 or 1 or 2) = 1/16 + 4/16 + 6/16 = 11/16
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Let a, n, b, r, and k be integers. If a = nb+r and k|a and k|b, then k|r
Kryger [21]

Answer:

Proof for k|r

Step-by-step explanation:

We are given that a, n, b, r and k are integers.

Also,

a = nb + r

Since k divides a and b, we can write,

a = rk and b = sk, where r and s are integers.

Now, we have to prove that k divides r as well that is k|r

Putting value of a and b in the equation, we get:

rk = n(sk) + r\\r = rk - nsk\\r = (r-sn)k

Since, (r-sn) is an integer, k divides r.

5 0
3 years ago
If a runner runs at a constant rate of 6 miles per hour how much time would it take for her to run 9 miles
Neko [114]

Answer:

1  1/2

Step-by-step explanation:

divide 9 by 6 (because its 6 miles per hour) you get 1  1/2. so it would be 1  1/2 hours or 1/5 hours

5 0
3 years ago
Read 2 more answers
If i can get an answer by tom i would really apreciate it.<br><br>=D
Yanka [14]
Only one section should be coloured in because it's 1/8 of the spinner. Meaning, there is one chance of landing on any colour.
3 0
4 years ago
The bases of a trapezoid are 16.8 yards and 6.9 yards. If the height is 2 yards, what is the area of the trapezoid?
Svet_ta [14]
Hello,
Here is the formula to find the area of the trapezoid:
A=1/2(b1+b2)×h
Where b1 represent big base
b2 represent small base
and h represent height
Now, we just need to replace the number to get the final answer:
A=1/2(16.8+6.9)×2
A=1/2(23.7)×2
A=23.7 square yards. As a result, the area of the trapezoid is 23.7 square yards. Hope it help!
8 0
4 years ago
Kyle is using 4 pounds of peaches to make pies. How many ounces of peaches is Kyle using for the pies? (1 pound = 16 ounces)
professor190 [17]
Should it be 64 cause that what i got<span />
4 0
4 years ago
Read 2 more answers
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