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blsea [12.9K]
3 years ago
7

An archer hits a bullseye 64% of the time. What is the probability the archer hits

Mathematics
1 answer:
Brums [2.3K]3 years ago
6 0

Answer:

C. 0.077

Step-by-step explanation:

Use binomial probability.

P = nCr pʳ qⁿ⁻ʳ

where n is the number of trials,

r is the number of successes,

p is the probability of success,

and q is the probability of failure (1−p).

n = 10, r = 4, p = 0.64, q = 0.36.

P = ₁₀C₄ (0.64)⁴ (0.36)⁶

P = 210 (0.64)⁴ (0.36)⁶

P = 0.077

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Is (p3)4 • p8 = p20 true or false ?
Oduvanchick [21]
P3(4) = p12 them p12 * p8 = P160 (false)
8 0
3 years ago
Two number cubes are rolled. What is the probability of rolling a sum of 9 or a sum that is even?
Murljashka [212]

Well I don't know !
Let's figure it out together.

Each cube can land in 6 different ways, so the total number
of possible results with two cubes is (6 x 6) = 36 .

Now we need to figure out how many of those 36 possibilities
meet your specifications ... either 9 or any even number.

Ways to make 9 :

3 . . . 6
6 . . . 3
4 . . . 5
5 . . . 4

Four ways to make 9.
____________________________

Ways to make an even number:

1 . . . 1
3 . . . 1
1 . . . 3
2 . . . 2
5 . . . 1
1 . . . 5
6 . . . 2
2 . . . 6
6 . . . 4
4 . . . 6
6 . . . 6

Eleven ways to make an even number.
_____________________

Total number of ways to succeed = (4 + 11) = 15 ways

So the probability of succeeding (rolling 9 or an even number)
is

               15 / 36  =  5 / 12  =  0.41666... =  (41 and 2/3) % .

8 0
3 years ago
Read 2 more answers
Three fifths of a number y is negative 9. What is the number?
klio [65]
\frac{3}{5}y=-9 \ |*5 \\\\ 3y=-45 \ |:3\\\\ y=-15
or
\frac{3}{5}y=-9 \\\\ 0,6y=-9 \ |*10\\\\ 6y=-90 \ |:6\\\\ y=-15
3 0
3 years ago
Read 2 more answers
2х - Зу= 2<br> х= бу - 5<br> X=<br> Y=
Fynjy0 [20]

Answer:

2x-3y=2

x=6y-5

2(6y-5)-3y=2

use the distributive property.

2*6y=12y

2*-5=-10

12y-10-3y=2

combine like terms

12y-3y=9y

9y-10=2

add 10 to both sides.

9y-10+10=9y

2+10=12

9y=12

divide both sides by 9

9y/9=y

y=about 1.33

plug in the value of y in the expression equal to the value of x.

x=6(1.33)-5

solve

6*1.33=7.98

x=7.98-5

7.98-5=2.98

Step-by-step explanation:

x=2.98

y=1.33

6 0
2 years ago
Three hundred and eighty -two tenthousandths
AlladinOne [14]

Answer:

382000

Step-by-step explanation:

8 0
3 years ago
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