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3 years ago

9

Simplyfy 3a(2)b + 5ab – 4ab + ab(2) + 8a(2)b () means exponent

2 answers:

Anit [1.1K]3 years ago

6 0

Answer:

(11a+b+1)

Step-by-step explanation:

(1): "a2" was replaced by "a^2". 2 more similar replacement(s). (((((3•(a2))•b)+5ab)-4ab)+(a•(b2)))+(23a2•b) ((((3a2 • b) + 5ab) - 4ab) + ab2) + 23a2b Pull out like factors :

11a2b + ab2 + ab = ab • (11a + b + 1)

Evgesh-ka [11]3 years ago

4 0

11a^2b + ab^2 + ab
In mathematics ^ means exponents

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In a television series there is exactly one crime committed in every episode. It has been observed that the probability that the

Rama09 [41]

Answer:

$P(x \le 3) = 0.2352$

Step-by-step explanation:

Given

$p = 0.35$ --- male committing a crime in an episode

$n = 5$ -- Number of episodes

Required

Determine the probability of male committing a crime at least 3 times

This question illustrates binomial distribution and will be solved using;

$P(x) = ^nC_x * p^x * (1 - p)^{n-x$

So, the required probability is represented as:

$P(x \ge 3)$

And will be calculated using:

$P(x \ge 3) = P(x = 3) + P(x = 4) + P(x = 5)$

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$P(x = 3) = ^5C_3 * (0.35)^3 * (1 - 0.35)^2$

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$P(x = 4) = ^5C_4 * (0.35)^4 * (1 - 0.35)^{5-4}$

$P(x = 4) = 5 * (0.35)^4 * (1 - 0.35)^1$

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$P(x = 5) = ^5C_5 * (0.35)^5 * (1 - 0.35)^{5-5}$

$P(x = 5) = 1 * (0.35)^5 * (1 - 0.35)^0$

$P(x = 5) = 1 * (0.35)^5 * (0.65)^0$

$P(x = 5) = 1 * (0.35)^5 * 1$

$P(x = 5) = 0.0053$

So:

$P(x \ge 3) = P(x = 3) + P(x = 4) + P(x = 5)$

$P(x \le 3) = 0.1811 + 0.0488 + 0.0053$

$P(x \le 3) = 0.2352$

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What is the best way to answer this mixed number 7 3/4 + 1 5/6

olga_2 [115]

9514 1404 393

Answer:

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Step-by-step explanation:

12 is a suitable common denominator.

(7 3/4) + (1 5/6) = (7 9/12) + (1 10/12) = (7+1) +(9/12 +10/12)

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= 9 7/12

_____

My calculator works with mixed numbers very nicely, as many graphing calculators do.

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