help!!!! right answer please!

Answer:

A darts player practices throwing a dart at the bull’s eye on a dart board. Her probability of hitting the bull’s eye for each throw is 0.2.

(a) Find the probability that she is successful for the first time on the third throw:

The number F of unsuccessful throws till the first bull’s eye follows a geometric

distribution with probability of success q = 0.2 and probability of failure p = 0.8.

If the first bull’s eye is on the third throw, there must be two failures:

P(F = 2) = p

2

q = (0.8)2

(0.2) = 0.128.

(b) Find the probability that she will have at least three failures before her first

success.

We want the probability of F ≥ 3. This can be found in two ways:

P(F ≥ 3) = P(F = 3) + P(F = 4) + P(F = 5) + P(F = 6) + . . .

= p

3

q + p

4

q + p

5

q + p

6

q + . . . (geometric series with ratio p)

=

p

3

q

1 − p

=

(0.8)3

(0.2)

1 − 0.8

= (0.8)3 = 0.512.

Alternatively,

P(F ≥ 3) = 1 − (P(F = 0) + P(F = 1) + P(F = 2))

= 1 − (q + pq + p

2

q)

= 1 − (0.2)(1 + 0.8 + (0.8)2

)

= 1 − 0.488 = 0.512.

(c) How many throws on average will fail before she hits bull’s eye?

Since p = 0.8 and q = 0.2, the expected number of failures before the first success

is

E[F] = p

q

=

0.8

0.2

= 4.

Answer:

The first one

Step-by-step explanation:

Answer:

(pics above)

Step-by-step explanation:

*i didn't draw the lines that way u could see the plot points

Answer:

4 & 5

Step-by-step explanation:

Answer:

216 x 10 13 (13 is the number that goes above of the 10)

Step-by-step explanation:

Multiply 8.1 x 10. 81

Multiply 4.5 x 10. 45

Add 81 + 45. 216

Add the scientific notions (8 + 5) . 13

216 x 10 13

Hope I helped!

Answer:

2(y+5)

Step-by-step explanation:

= 2y+10 simple multiplication method

Answer:

2y+10

Step-by-step explanation:

If you want to distribute 2(y+5), you're going to multiply y and 5 to 2

yx2=y2

5x2=10

Your answer should be 2y+10

(Hope this helps UwU)

Answer: 5 to the 2 power x4+100 divide by 2

Step-by-step explanation:

The expression that has a value of 100 is 5²×4 + 100/2 - 50 and has all four operations and at least one exponent.

It is defined as the operation in which we do the addition of numbers, subtraction, multiplication, and division. It has a basic four operators that is +, -, ×, and ÷.

It is given that:

Use all four operations and at least one exponent to write an expression that has a value of 100.

The value of the expression = 100

As we know,

In mathematics, integer exponents are exponents that should be integers. It may be a positive or negative number. In this situation, the positive integer exponents determine the number of times the base number should be multiplied by itself.

The number expression will be:

5²×4 + 100/2 - 50

Thus, the expression that has a value of 100 is 5²×4 + 100/2 - 50 and has all four operations and at least one exponent.

Learn more about the arithmetic operation here:

brainly.com/question/20595275

#SPJ2

Answer:

Step-by-step explanation:

Answer:

G=5

Step-by-step explanation:

Input the answer into the formula. If it is correct then its correct but if it doesn't work it is incorrect

9514 1404 393

Answer:

  B.  -0.2 + (-4.9)

Step-by-step explanation:

Subtracting a number is the same as adding its opposite. Subtracting 4.9 is the same as adding -4.9.

The appropriate choice is ...

 -0.2 + (-4.9)

Answer:

9x

Step-by-step explanation:

You add 8x + x since they are like terms and you will get 9x.

Answer:

9x

Step-by-step explanation:

Answer:

d

Step-by-step explanation:

Answer:

The answer is D

Step-by-step explanation:

Answer:

1. scholars team is 15 %, student gov. 0.08%, band 24%,  sports 34 %, fun raising is 17%

2. athletics is 30%, gov is 0.07 %, band is 21%, fund raising is 15%, scholars team is 14%

Step-by-step explanation:

Answer:

$80 and $960

Step-by-step explanation:

Divide 240 by 3 which would be 80

Then multiply 12 times 80 (or 240 times 4) which would be 960

So $80 and $960

Answer:

Step-by-step explanation:

just put them into percents lol

50% < 33.33% not true

75% > 66.66% true

-25% < -66.66% not true

-100% > 75% not true

so the second one is true

hope this helps <3

Answer:

5(5p+9)

-----------

9

Step-by-step explanation:

Answer:

[tex]7\frac{2}{3}[/tex]

Step-by-step explanation:

[tex]3\frac{1}{9}p+5-\frac{1}{3}p[/tex]

Put it into a different form to make it easier.

[tex]3\frac{1}{9}p-\frac{1}{3}p+5[/tex]

Add the fractions. We need to figure out the LCM to figure out the common denominator. The LCM is 9 in this case.

[tex]3\frac{1}{9}-\frac{3}{9} +5[/tex]

I like to convert into imroper fractions. This is optional though.

[tex]\frac{28}{9} -\frac{3}{9} +5[/tex]

[tex]\frac{24}{9} +5[/tex]

[tex]\frac{8}{3}+5[/tex]

Get a common denominator. The LCM is 3.

[tex]\frac{8}{3}+\frac{15}{3}[/tex]

[tex]\frac{23}{3}[/tex]

Make this fraction into a mixed number.

[tex]7\frac{2}{3}[/tex]

I hope this helps!

Answer:

Unit rate

Step-by-step explanation:

A rate that has a denominator of 1 unit is referred to as a unit rate.

Answer:

The answer is Unit Rate

:D Have a Great Day :D

the answer is a B:9

Step-by-step explanation:

THE ANSWERS FOR u question is a B:9

Answer:

Delaney is answering :)

Step-by-step explanation:

it is either a,b,c,or d

it's gotta be one of those

Answer:

-40

You start at -5 then you add 20 to get 15 . Then you subtract 25 from 15 to get -10. Then you add 40 to -10 to get 30. Then you have to subtract 70 from 30 to get -40 F.

Step-by-step explanation:

Answer:

-40°F

Step-by-step explanation:

-5+20-25+40-70 = - 40

Hope this helps!

Answer:

Ill help but give me a day

Step-by-step explanation:

a

Answer:

y=  3/4 -1

Step-by-step explanation:

Answer:

put -1 on the graph

Step-by-step explanation:

Answer:

21.46

Step-by-step explanation:

we know that 10yd is the diameter of the unshaded circle. so we will use this to find out the area of the circle. if a diameter of a circle is 10yd, the area is about 78.54 (considering that pi=3.14) to find the area of the shaded region, we can pretend that the entire square is shaded, and then take the unshaded away. if the square was completley shaded, the answer would be 100. but there is a circle inside of the square unshaded, with a area of 78.54, so we need to solve for 100-78.54. this results in our final answer, 21.46

Answer:

multiply

Step-by-step explanation:

Answer:

B: multiply

Step-by-step explanation: