2 years ago

In the rhombus, m∠1=8y-6. Find the value of y?

Mathematics

1 answer:

lesya [120]2 years ago

8 0

Answer:

The value of y = 12

Step-by-step explanation:

<u>Points to remember </u>

In a rhombus the diagonals are bisect each other perpendicularly.

<u>To find the value of y</u>

From the figure we can see a rhombus. The <1 is a right angle.

m<1 = 90

Therefore, 8y - 6 = 90°

8y = 90 + 6

8y = 96

y = 86/8

y = 12

Therefore the value of y = 12

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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.

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