2 years ago

IF A, B, C are three mutually exclusive events with 1/3p(A)=2/3p(B)=1/6P(C).

Mathematics

1 answer:

Bas_tet [7]2 years ago

7 0

A=2(67.76).45 it’s ten divided by 8

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LCM of 16, 28, and 56

Sindrei [870]

Answer:

Step-by-step explanation:

2x8=16, 2x14=28, and 2x28=56

6 0

3 years ago

Consider that the roots of a cubic equation with integral coefficients are 1, −2, and 3.

Iteru [2.4K]

Answer:

The answer is option A) X + 2

Step-by-step explanation:

Any polynomial of order n can be expressed in terms of their roots in factors of the form

(x-a)(x-b)(x-c)(x-d)....... = 0

Where a,b,c,d,... are the roots of the polynomial

In the example shown

(x+2) = (x-(-2))

And -2 happens to be the root of the polynomial in question

3 0

2 years ago

Read 2 more answers

A random sample of 23 items is drawn from a population whose standard deviation is unknown. The sample mean isx⎯ ⎯ x¯ = 840 and

gayaneshka [121]

Answer:

$(832.156, \ 847.844)$

Step-by-step explanation:

Given data :

Sample standard deviation, s = 15

Sample mean, $\overline x = 840$

n = 23

a). 98% confidence interval

$\overline x \pm t_{(n-1, \alpha /2)}. \frac{s}{\sqrt{n}}$

$$E= t_{( n-1, \alpha/2 )} \frac{s}{\sqrt n}}$

$t_{(n-1 , \alpha/2)} \frac{s}{\sqrt n}$

$t_{(n-1, a\pha/2)}=t_{(22,0.01)} = 2.508$

∴ $E = 2.508 \times \frac{15}{\sqrt{23}}$

$E = 7.844$

So, 98% CI is

$(\overline x - E, \overline x + E)$

$(840-7.844 , \ 840+7.844)$

$(832.156, \ 847.844)$

4 0

2 years ago

Joe ate 80% of a pepperoni pizza. what fraction of the pizza did he ate ? A.2/25 B. 1/8 C. 1/80 D.1/5 E.4/5

Mila [183]

Answer:

Most likely D.

Step-by-step explanation:

Makes the most sense.

4 0

3 years ago

The kinetic energy (in joules ) of a moving object can be calculated from the expression 1/2mv to the second power, where m is t

yulyashka [42]

E = 1/2 m v^2

E = 1/2 (0.145) (40)^2

E = 0.0725 x 1600

E = 116 kg m^2/s^2

1 joule = 1 kg m^2/s^2

so here E in joules is 116 joules

so E = 116 joules

7 0

2 years ago