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erica [24]
3 years ago
14

A person has a 35 percent chance of winning on a scratch off lottery ticket. What is the probability she first wins of he sixth

ticket?
A.(0.65)^3(0.35)
B.(6/3)(0.65)^3(0.35)
C.(0.35)^3(0.65)
D, (6/1)(0.35)^3(0.65)
E. 0.35
Mathematics
1 answer:
Rudiy273 years ago
3 0

None of the options are correct

Step-by-step explanation:

Given :

a person has 35% chance of winning on a scratch- off lottery ticket.

To find the probability that she wins  the sixth ticket is,

P( she first wins the sixth ticket )

= _ _ _ _ _ _

the first 5 dashes represent does not win values ( prob = 0.65)

the last dash represents the win ( prob = 0.35)

= (0.65) ^5 * 0.35                          {assuming independence

none of the option is correct.

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Evacuation and emergency procedures should be displayed in the classroom lab/office. * 4 points True False
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PLS HELP IM DESPARET
vesna_86 [32]

Answer:

19/4 or 4.75

Step-by-step explanation:

Week 1: 1 1/8 = 1.125

Week 2: -2 5/8 = -2.625*

Week 3: 1 3/4 = 1.75

Week 4: -1 1/2 = -1.5

Week 5: 2 1/8 = 2.125*

2 1/8 - (-2 5/8) = 2.125 - (-2.625)

19/4 or 4.75

3 0
3 years ago
PLZ HELP!!
ludmilkaskok [199]

9514 1404 393

Answer:

  y = -3x^2 -9x +30

Step-by-step explanation:

When a polynomial has a zero at x=p, it has a factor of (x -p). The factors of your quadratic are ...

  f(x) = (x +5)(x -2)

At the point x=3, the value of this product is ...

  f(3) = (3 +5)(3 -2) = (8)(1) = 8

In order for that value to be -24, it needs to be multiplied by a scale factor of -3. The quadratic you want is ...

  y = -3(x +5)(x -2)

  y = -3x^2 -9x +30 . . . . . standard form

3 0
3 years ago
Rich also has £400 pounds invest 3% compound interest . How many years does he need to invest the money to get at least £475
zepelin [54]

Answer: 6 years

Step-by-step explanation:

Formula to calculate compound amount: A=P(1+r)^t, where P= Principal , r=rate of interest, t= time

Given: P = £400, r = 3% = 0.03 , A= 475

Required equation: 400(1+0.03)^t\geq475

400(1.03)^t\geq475\\\\\Rightarrow\ (1.03)^t\geq\dfrac{475}{400}\\\\\Rightarrow\ (1.03)^t\geq1.1875

Taking log on both sides , we get

t \log 1.03\geq\log1.1875\\\\\Rightarrow\ t(0.0128372)\geq(0.0746336)\\\\\Rightarrow\ t\geq\dfrac{0.0746336}{0.0128372}=5.81385\approx6

Hence, he needs to invest the money for 6 years to get atleast £475.

7 0
2 years ago
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