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3 years ago

10

The coordinates of a point on a coordinate grid are (−2, 6). The point is reflected across the x-axis to obtain a new point. The

coordinates of the reflected point are
(2, 6)
(−2, 6)
(−2, −6)
(2, −6)

2 answers:

Colt1911 [192]3 years ago

8 0

(-2,-6) I believe. Sorry if it’s wrong

Juliette [100K]3 years ago

3 0

The reflected coordinate will be (-2,-6)

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Answer:

$P(x =2) = 0.3020$

Step-by-step explanation:

Given

$p =20\% = 0.20$

$n = 10$

Required

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This question is an illustration of binomial distribution where:

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

So, we have:

$P(x =2) = ^{10}C_2 * 0.20^2 * (1 - 0.20)^{10-2}$

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This gives

$P(x =2) = \frac{10!}{(10 - 2)!2!} * 0.20^2 * 0.80^8$

$P(x =2) = \frac{10!}{8!2!} * 0.20^2 * 0.80^8$

Expand

$P(x =2) = \frac{10*9*8!}{8!2*1} * 0.20^2 * 0.80^8$

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3 years ago