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nevsk [136]
2 years ago
11

A personal computer is used for office work at home, research, communication, personal finances, education, entertainment, socia

l networking, and a myriad of other things. Suppose that the average number of hours a household personal computer is used for entertainment is two hours per day. Assume the times for entertainment are normally distributed and the standard deviation for the times is half an hour. Find the probability that a household personal computer is used for entertainment between 2.1 and 2.45 hours per day. Round your answer to four decimal places.
Mathematics
1 answer:
riadik2000 [5.3K]2 years ago
8 0

Answer:

Step-by-step explanation:

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Solve for x. 12x = 2x^2 + 18
Zanzabum
2x^2-12x+18=0

Factor out GCF
2(x^2-6x+9)

Factor trinomial
(x-3)(x-3)

Proof
-3-3=-6
-3^2=9

Zeros
x-3=0
x=3

Final answer: B
7 0
4 years ago
Help me please!!!!!!!!!
Mice21 [21]

Answer:

A = 5

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6 0
3 years ago
Read 2 more answers
I need the solution
Vikki [24]

Answer:

=3/4

Step-by-step explanation:

3 (c+d)         2c-2d

-------------- * -------------

(c-d)             8c+8d


Factor the right had term.  The numerator can factor out a 2 and the denominator can factor out an 8.

3 (c+d)         2(c-d)

-------------- * -------------

(c-d)             8(c+d)

We can cancel the (c+d) in the numerator the left and the denominator on the right.  We can cancel the (c-d) in the numerator on the right and the denominator on the left

3                  2

-------------- * -------------

1                   8

We can divide the fraction on the right by 2 on the top and bottom.

3                  1

-------------- * -------------

1                   4

=3/4

4 0
4 years ago
What is the initial value and what does it represent
yawa3891 [41]
Its a ordinary differential equation together with a specifies value, called thee initial equation :) hope that helps
7 0
3 years ago
A farm lets you pick 3 pints of raspberries for $12.00.
Aloiza [94]

Answer:a.4 dollars per pint

b.4th a pint/ 1 cup per dolllar

c. 5 pints

d.32 dollars

Step-by-step explanation:

6 0
3 years ago
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