3 years ago

Solve the following 4(5x-2)=2(9x+3)

Mathematics

2 answers:

Advocard [28]3 years ago

4 0

Answer:

X=7

Step-by-step explanation:

If you distribute you get

20x-8=18x+6

subtracting and adding to both sides you gte

2x=14 so

x=7

telo118 [61]3 years ago

4 0

X is equaled to 7 that’s the answer 7

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IceJOKER [234]

You would do 8x+(15•8$

8 0

3 years ago

The diameters of bolts produced by a certain machine are normally distributed with a mean of 0.35 inches and a standard deviatio

Fiesta28 [93]

Answer:

15.87%

Step-by-step explanation:

Notice that the mean of 0.35 inches with a standard deviation of 0.01 gives you when you add (to the right of the distribution), exactly 0.36. Since you want to find the probability (or percentage) of the bolts that have diameter LARGER than 0.36 in, that means you want to estimate the area under the Normal distribution curve from 0.36 to the right). See attached image.

We can use the tables of Z distribution for that, or the standard normal tables:

P(x>0.36) = P(z>(0.36-0.35)/0.01) = P(Z>1) = 0.1587 = 15.87%