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Likurg_2 [28]
2 years ago
15

014pts)

Mathematics
1 answer:
kap26 [50]2 years ago
7 0

Answer:

What does x equal ? <u>3</u><u>0</u>

What does < ABC equal? <u>100</u>

What does < DBC equal? <u>8</u><u>0</u>

Step-by-step explanation:

(3x + 10) + (2x + 20) = 180 \\ 5x + 30 = 180 \\ 5x = 180 - 30 \\ 5x = 150 \\  x =  \frac{150}{5}  \\  \\  x = 30

3x + 10  = 3(30) + 10 = 90 + 10 = 100

2x + 20 = 2(30) + 20 = 60 + 20 = 80

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ella [17]
This can be solved by using the normal approximation to the binomial distribution.
mean = np = 10.000 * 0.5 = 5,000
The standard deviation is given by:
S.D.= \sqrt{npq} = \sqrt{5000\times0.5} =50
z=\frac{5100-5000}{50}=2
The probability of obtaining more than 5100 tails is 0.0228 and the probability of obtaining fewer than 5100 tails is 0.9772.
The odds of obtaining more than 5100 tails is therefore:
0.0228:0.9772 = 1:42.86.

3 0
2 years ago
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Hunter-Best [27]

Answer:

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2 years ago
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Nesterboy [21]

Answer:

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Step-by-step explanation:

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Since the question gives you these values, all you need to do is plug it in. (x and y remain the same).

y = -5x + 8

I hope this helps!

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Answer:

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