3 years ago

Someone tell me how to do this

Mathematics

1 answer:

Anastaziya [24]3 years ago

7 0

It woul be 3*m=27wich m =9

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What are the coordinates of the focus of the parabola shown below?

soldi70 [24.7K]

The coordinates are (-4,0),(0,-1)

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2 years ago

Help me again please

mash [69]

Answer:

answer C (0,-9)

Step-by-step explanation:

the line passes through (0,-9)

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2 years ago

Thirty percent (30%) of the bulbs in a large box are defective. If 12 bulbs are selected randomly from the box, calculate the pr

AleksandrR [38]

The probability that exactly 6 are defective is 0.0792.

Given:

30% of the bulbs in a large box are defective.

If 12 bulbs are selected randomly from the box.

To find:

The probability that exactly 6 are defective.

Solution:

Probability of defective bulbs is:

$p=30\%$

$p=\dfrac{30}{100}$

$p=0.3$

Probability of non-defective bulbs is:

$q=1-p$

$q=1-0.3$

$q=0.7$

The probability that exactly 6 are defective is:

$P(x=r)=^nC_rp^rq^{n-r}$

$P(x=6)=^{12}C_6(0.3)^6(0.7)^{12-6}$

$P(x=6)=924(0.3)^6(0.7)^{6}$

$P(x=6)=0.0792478958$

$P(x=6)\approx 0.0792$

Therefore, the probability that exactly 6 are defective is 0.0792.

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brainly.com/question/12917164

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2 years ago

Write the following inequality in slope-intercept form. –12x – 2y ≥ –42 y ≥ –6x – 21 y ≤ –6x – 21 y ≤ –6x + 21 y ≥ –6x + 21

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Answer:

y ≤ –6x + 21

Step-by-step explanation:

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2 years ago