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Lelu [443]
3 years ago
15

Witch expersson is equivalent to 4x-5?

Mathematics
1 answer:
barxatty [35]3 years ago
7 0

Answer:

Uh where are the other expressions?

Step-by-step explanation:

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Given that exactly two of the six rolls resulted in a 1, find the probability that the first roll resulted in a 1. Note: Your an
Ganezh [65]

Answer:

1/3 or 0.333

Step-by-step explanation:

If we know that exactly 2 of the 6 rolls resulted in a 1. Then the number of ways to arrange the two 1s into 6 slots is

C(6,2) = \frac{6!}{(6-2)!2!} = \frac{6*5}{2} = 15 ways

Of these 15 ways, some of them have 1 at the 1 slot.

The number of ways to arrange the two 1s so that one 1 is in the 1st slot is 5. Because the 2nd 1 is in any of the other 5 slots.

Therefore,  the probability that the first roll resulted in a 1,given that exactly two of the six rolls resulted in a 1 is

5 / 15 = 1/3 or 0.333

6 0
3 years ago
Which ratio is the simplest form of 42 : 28 ?<br> A) 2:1<br> B<br> 21:14<br> 3:2<br> 2<br> D) 2:3
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3 years ago
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What is the slope of the line through (–4, 3) and (5, 3)?
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b

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11.4.3 Quiz: Solving Inequalities
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2 years ago
If a snowball melts so that its surface area decreases at a rate of 7 cm2/min, find the rate at which the diameter decreases whe
vivado [14]
Surface area: S
radius: r
diameter: e
time: t

[dS/dt] = [dS/de]*[de/dt] => de/dt = [dS/dt] / [dS/de]

S = 4pi*r^2 = 4p*i(e/2)^2 = pi*e^2 => dS/de =2pi*e

dS/dt = 7cm^2 / min

de / dt = [2pi*e] / [7cm^2/min] =[7cm^2/min] /  [2pi*10cm]  = 0.11 cm/min 




3 0
3 years ago
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