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zalisa [80]
3 years ago
7

Find the value of x. 2x - 5 > 7 *

Mathematics
2 answers:
Lady_Fox [76]3 years ago
7 0

Answer:

x > 6

Step-by-step explanation:

Luda [366]3 years ago
6 0

Answer:

x>6

Step-by-step explanation:

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The Environmental Protection Agency (EPA) has contracted with your company for equipment to monitor water quality for several la
max2010maxim [7]

Answer:

36.58% probability that one of the devices fail

Step-by-step explanation:

For each device, there are only two possible outcomes. Either it fails, or it does not fail. The probability of a device failling is independent of other devices. So we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

And p is the probability of X happening.

A total of 15 devices will be used.

This means that n = 15

Assume that each device has a probability of 0.05 of failure during the course of the monitoring period.

This means that p = 0.05

What is the probability that one of the devices fail?

This is P(X = 1)

P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}

P(X = 1) = C_{15,1}.(0.05)^{1}.(0.95)^{14} = 0.3658

36.58% probability that one of the devices fail

7 0
3 years ago
Tonya and Emily each have an online jewelry store. Let T represent the amount of money Tonya earns daily, and let
zubka84 [21]

Answer:

On average, Tonya makes $312 more than Emily on a typical day.

Step-by-step explanation:

I was just studying that question a few hours ago

3 0
3 years ago
Read 2 more answers
I need help with these problems
Lesechka [4]
Part A: 1/6
Part B: 5/6
4 0
3 years ago
Which is the graph of y = cos(x) + 3? On a coordinate plane, a cosine curve has a maximum of 3 and a minimum of negative 3. On a
Andrei [34K]

Answer: none of them is right, did you meant maximum 4 and minimum 2?

Step-by-step explanation: cos x gets values between 1 and -1.

If you add 3 you get values between 4 and 2.

8 0
3 years ago
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1 4/5 lbs into ounces
AURORKA [14]
1 4/5lbs is equal to 28.8oz
7 0
3 years ago
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