3 years ago

The value of $y$ varies inversely as $\sqrt x$ and when $x=2$, $y=4$. What is $x$ when $y=1$?

Mathematics

1 answer:

Dovator [93]3 years ago

4 0

$x=3$ I think that’s it... try that

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sergiy2304 [10]

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5p³ - 2p² - 7p + 1

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3 years ago

If y = 4 when x = -6, find y when x = 15.

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2 years ago

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azamat

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2 years ago

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The graph of y = 1 x is vertically stretched by a factor of 3, reﬂected across the y-axis and shifted to the left by 2 units. Wh

galben [10]

y = 3(-x - 2)

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3 years ago

Two factories I and II produce phones for brand ABC. Factory I produces 60% of all ABC phones, and factory II produces 40%. 10%

denpristay [2]

Answer:

0.3721 or 37.21%

Step-by-step explanation:

P(I) = 0.60; P(II) = 0.40;

P(not defective I) = 0.90; P(not defective II) = 0.80

The probability that the phone came from factory II, given that is not defective, is determined by the probability of a phone from factory II not being defective divided by the probability of a phone not being defective.

$P(II|not) = \frac{P(II)*P(not_{II})}{P(II)*P(not_{II})+P(I)*P(not_{I})}\\P(II|not) = \frac{0.40*0.80}{0.40*0.80+0.60*0.90}\\ P(II|not) =0.3721 = 37.21\%$

The probability is 0.3721 or 37.21%.

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3 years ago