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3 years ago

Please answer correctly !!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!

Mathematics

2 answers:

melisa1 [442]3 years ago

6 0

Answer:

Step-by-step explanation:

So it’s pretty simple

A triangle’s hypotenuse (largest side of a triangle) had to be less than the two sides added together.

So if you add the 2 numbers and it’s greater than te hypotnuse, then its a possible triangle, if it’s less than the hypotnuse, there’s no way it can be a triangle.

So you add the first two since their the least and see if its less than and C is impossible becuase if you add the two, you’ll get 10+22=32 but the hypotnuse is 33 so it’s impossible.

The others are fine

ElenaW [278]3 years ago

3 0

The answer for this question is C
hope that helped

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The centers for disease control and prevention reported that 25% of baby boys 6-8 months old in the united states weigh more tha

melisa1 [442]

Answer:

0.1971 ( approx )

Step-by-step explanation:

Let X represents the event of weighing more than 20 pounds,

Since, the binomial distribution formula is,

$P(x)=^nC_r p^r q^{n-r}$

Where, $^nC_r=\frac{n!}{r!(n-r)!}$

Given,

The probability of weighing more than 20 pounds, p = 25% = 0.25,

⇒ The probability of not weighing more than 20 pounds, q = 1-p = 0.75

Total number of samples, n = 16,

Hence, the probability that fewer than 3 weigh more than 20 pounds,

$P(X$

$=^{16}C_0 (0.25)^0 (0.75)^{16-0}+^{16}C_1 (0.25)^1 (0.75)^{16-1}+^{16}C_2 (0.25)^2 (0.75)^{16-2}$

$=(0.75)^{16}+16(0.25)(0.75)^{15}+120(0.25)^2(0.75)^{14}$

$=0.1971110499$

$\approx 0.1971$

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