1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mestny [16]
3 years ago
14

A person has a 30 percent chance of winning on a scratch-off lottery ticket. What is the probability she first wins of the fifth

ticket
a. (5/1 ) (0.30)3 (0.70).
b. (5/4 ) (0.70)3 (0.30).
c. (0.70)^4 (0.30).
d. (0.30)^3 (0.70).
e. 0.30.
Mathematics
1 answer:
garik1379 [7]3 years ago
6 0

Answer: (c)

Step-by-step explanation:

Given

A person has a 30% chance of winning a lottery ticket.

Probability of not getting the lottery ticket is 70%

For person to win at fifth ticket, it must fail in first four

So, the probability associated with it is

\Rightarrow P=(0.70)\times (0.70)\times (0.70)\times (0.70)\times (0.30)\\\\\Rightarrow P=(0.70)^4\cdot (0.3)

Hence, option (c) is correct.

You might be interested in
Pleas y'all help me with this
Fynjy0 [20]

Answer:

-\frac{26}{2}/  -\sqrt{9}/  13.5(percent)/ 0/ 13.5

Step-by-step explanation:

3 0
3 years ago
El -2,4 es un número entero✨<br>Gracias!!! ✨✨✨​
Marizza181 [45]

Answer:2

Step-by-step explanation:

subtract

3 0
3 years ago
6. <br> Which of the following is the graph of the equation y = −2x2 − 3x + 4?
Stells [14]

Answer:

From the looks of the graph, it looks like the answer will be Letter C. (The last graph).

Step-by-step explanation:

Graph the parabola using the direction, vertex, focus, and axis of symmetry.

Direction: Opens Down

Vertex:  ( − 3 /4 ,  41 /8 )

Focus:  ( − 3 /4 ,  5 )

Axis of Symmetry:  x = − 3 /4

Directrix:  y = 21 /4

x                  y

− 3               − 5

− 2                2

− 3                4

41                8

0                 4

1                 − 1

4 0
2 years ago
A quadratic equation is shown below:
Valentin [98]
Part A)

The given equation is:

25 x^{2} +10x+1=0

The radicand or discriminant(d) of the equation will be:

d=(10)^{2}-4(25)(1) \\  \\ &#10;d=100-100 \\  \\ &#10;d=0

Since the discriminant is equal to 0, the given quadratic equation has only 1 root. In other words we can say the the given equation is a perfect square. 


Part B)

The given equation is:

4 x^{2} -4x+1=0

We can solve this expression by factorization. Factors of middle term are to be made in such a way that their product equals the product of first and third term and sum is equal to the middle term i.e. product should be 4x² and sum should be -4x.
So the two such terms are -2x and -2x. Using the factors and simplifying the equation by taking common we get:

4 x^{2} -2x-2x+1=0 \\  \\ &#10;2x(2x-1)-1(2x-1)=0 \\  \\ &#10;(2x-1)(2x-1)=0 \\  \\ &#10;(2x-1) ^{2}=0 \\  \\ &#10;2x-1=0  \\  \\ &#10;x= \frac{1}{2}
4 0
3 years ago
Solve the equation v³ = 12.
AlexFokin [52]

Answer:

2.2894

Step-by-step explanation:

v3 = 12

v  =  ∛ 12  

v = 2.2894

5 0
1 year ago
Other questions:
  • Jay paid $126 to rent a car for 4 days. Stephanie paid $184.50 to rent a car for 6 days.
    13·1 answer
  • Find f(2) if f(x) = (x + 1)2. 9 6 5 <br><br><br><br> I'll give brainiest if right
    6·1 answer
  • At a fabric store, fabrics are sold by the yard. A dressmaker spent $36.35 on 4.25 yards of
    11·1 answer
  • What is the approximate total to the nearest whole number? <br><br> 74.198 + 640.21
    12·2 answers
  • Find the slope intercept form of the equation that passes through (-6,9) and (-2,-3,)
    10·1 answer
  • The diameter of a basketball is approximately 9.5 inches and the diameter of a tennis ball is approximately 2.5 inches .The volu
    10·1 answer
  • Y=-6x-4 as integer form
    11·1 answer
  • Please help asap
    10·2 answers
  • I’m very confused please help!
    10·1 answer
  • Please help me solve this problem
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!