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3 years ago

HELP ME PLZZZ

2 answers:

6 0

H = height of triangle
b = length of triangle base
A = area of triangle

Recall the formula for area of a triangle :

A = 1/2 bh

Plug in what was given in the problem :

h = b - 5
A = 42

A = 1/2 bh
42 = 1/2 b (b-5)

Dimas [21]3 years ago

4 0

The answer would be B.

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3 years ago

Read 2 more answers

Twelve jurors are randomly selected from a population of 4 million residents. Of these 4 million residents, it is known that 46

vekshin1

Answer: a) 0.17, b) 0.0363

Step-by-step explanation:

Since we have given that

Number of jurors selected = 12

Number of minorities of jurors = 2

(a) What proportion of the jury described is from a minority race? 

$\dfrac{2}{12}=\dfrac{1}{6}=0.166666\approx0.17$

(b) If 12 jurors are randomly selected from a population where 46% are minorities, what is the probability that 2 or fewer jurors will be minorities?

Let X be the number of jurors who are minorities.

Probability of getting minorities = 0.46

Probability of getting no minorities = 1-0.46 =0.54

$P(X\leq 2)=^{12}C_0(0.54)^{12}+^{12}C_1(0.46)(0.54)^{11}+^{12}C_2(0.46)^2(0.54)^{10}\\\\P(X\leq 2)=0.0363$

(c) What might the lawyer of a defendant from this minority race argue?

Since the number of minorities juror are high among the population.

Hence, a) 0.17, b) 0.0363

7 0

3 years ago