3 years ago

What is a probability that rolling a six-sided die results in 2 or 3?

Mathematics

1 answer:

Paraphin [41]3 years ago

5 0

The probability of rolling a 2 would be 1/6

The probability of rolling a 3 would be 1/6

The probability of rolling a 2 or a 3 would be 1/6 + 1/6 = 2/6, which reduces to 1/3

The answer is 1/3

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Which of the following sets contain all roots of the polynomial

Zarrin [17]

All these given roots are contained in option C.

The given equation is :

$9x^{3}+9x^{2}-4x-4=0$

$9x^{2}(x+1)-4(x+1)=0$

$(9x^{2}-4)(x+1)=0$

$9x^{2}-4=0,x+1=0$

$x^{2}=\frac{4}{9},x=-1$

$x=\frac{2}{3},x=-1$

Roots = $-1,\frac{-2}{3} ,\frac{2}{3}$

Hence these lie in between $(\frac{-3}{2} ,\frac{3}{2})$

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3 years ago

If u(x)= x^5-x^4+x^2 and v(x)= -x^2, which expression is equivalent to (u/v)(x)? Ox^3-x^2 O -x^3+x^2 O-x^3+x^2-1 Ox^3-x^2+1

djverab [1.8K]

Answer:

C. -x^3 + x^2 - 1

Step-by-step explanation:

<u>Given</u>

u(x) = x^5 - x^4 + x^2 and v(x) = -x^2

(x^5 - x^4 + x^2) /(- x^2) =
- (x^3 - x^2 + 1) =
-x^3 + x^2 - 1

Correct option is C

3 0

3 years ago

2ax-b=cx+d solve for x

Alexxandr [17]

Answer:

x = (d + b) / (2a - c)

Step-by-step explanation:

2ax-b = cx+d

2ax - cx = d + b

x (2a-c) = d + b

x = (d + b) / (2a - c)

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3 years ago

a bookshelf holds 4 different biographies and 5 different novels. How many ways can one book of each type be selected?

Mandarinka [93]

Try 4!5! = 24*120 = 2880 different ways

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4 years ago

What is the key feature of simple interest?

mylen [45]

Answer:

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Step-by-step explanation:

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3 years ago

Read 2 more answers