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2 years ago

Please Help! I have 2 questions,

Mathematics

1 answer:

GrogVix [38]2 years ago

7 0

2. 5(x-1)=-3x+35
5x-5=-3x+35
5x=-3x+30
2x=30
x=15

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How many 2-digit numbers can be formed from the digits 1 through 8 if each digit is only used once?

SVEN [57.7K]

Answer:

56.

Step-by-step explanation:

That is the number of permutations of 2 from 8

= 8P2

= 8!/(8-2)!

= 8!/6!

= 8 * 7

= 56.

6 0

2 years ago

Read 2 more answers

Assume that thermometer readings are normally distributed with a mean of degrees and a standard deviation of 1.00degrees C. A th

Andrew [12]

Answer:

0.2684 is the probability that the temperature reading is between 0.50 and 1.75.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 0 degrees

Standard Deviation, σ = 1 degrees

We are given that the distribution of thermometer readings is a bell shaped distribution that is a normal distribution.

Formula:

$z_{score} = \displaystyle\frac{x-\mu}{\sigma}$

P(Between 0.50 degrees and 1.75 degrees)

$P(0.50 \leq x \leq 1.75)\\\\ = P(\displaystyle\frac{0.50 - 0}{1} \leq z \leq \displaystyle\frac{1.75-0}{1})\\\\ = P(0.50 \leq z \leq 1.75)\\= P(z \leq 1.75) - P(z < 0.50)\\= 0.9599 - 0.6915 = 0.2684 = 26.84\%$

0.2684 is the probability that the temperature reading is between 0.50 and 1.75.

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3 years ago

your bike lock has 4 digits numbered 0 to 9. find the total number of possible outcomes for the bike lock

Ann [662]

Answer:

There could be many, my estimate would be around 100.

Step-by-step explanation:

It may sound exaggerated but it can be.

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2 years ago

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ss7ja [257]

Answer:

The answer is c, a, b, d

Step-by-step explanation:

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The rule says that the sum of any two sides has to be smaller than the third side so, no it can't

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2 years ago