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Fiesta28 [93]
3 years ago
8

If y varies inversely as the square of x, and y = 1/8 when x = 1, find y when x = 5.

Mathematics
1 answer:
Kisachek [45]3 years ago
6 0
Y = k / x² ( y varies inversely as the square of x ) 
y = 1/8 when x = 1:
1/8 = k / 1²
8 k = 1
k = 1/8
For x = 5:
y = 1/8  / 5² = 1/8 : 25 = 1/8 · 1/25 = 1/200
Answer: A ) 1/200


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OlgaM077 [116]
The first thing we must keep in mind is that there are 2 bags left over.
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3 years ago
What number is a factor of 24 but not a multiple of 12 Answer choices A) 8 B) 9 C) 5 D)
schepotkina [342]
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Read 2 more answers
Probability question, which I am stuck on!
son4ous [18]

Answer:

land on 3: 36 times

land on 4: 63 times

Step-by-step explanation:

A biased dice is the opposite of a fair dice.

A fair dice has the same probability of landing any of the six numbers: 1/6

The biased dice has different probabilities for its results.

To solve this question, first we need to find the probability of landing a 3.

The sum of all probabilities need to be 1, so:

0.13 + 0.05 + p(3) + 0.21 + 0.19 + 0.3 = 1

p(3) = 1 - 0.88 = 0.12

If we roll the dice 300 times, the expected number of times the dice will land:

on 3: 300 * p(3) = 300 * 0.12 = 36 times

on 4: 300 * p(4) = 300 * 0.21 = 63 times

7 0
3 years ago
Y=x+5<br> 4x+y=20<br> Solving system by substitution
sineoko [7]
Y = x + 5....so we sub in x + 5 for y in the other equation

4x + y = 20
4x + x + 5 = 20
5x + 5 = 20
5x = 20 - 5
5x = 15
x = 15/5
x = 3

y = x + 5
y = 3 + 5
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solution is (3,8)
3 0
3 years ago
Can someone please help with 15?
natima [27]
The answer would be c
8 0
3 years ago
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