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Step2247 [10]
3 years ago
8

Write 0.0000055 in scientific notation

Mathematics
1 answer:
Feliz [49]3 years ago
3 0

Answer:

(b) 5.5 × 10^-6

Step-by-step explanation:

hope if helps

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G C D of 130 and 150​
wlad13 [49]

Answer:

GCF = 10

Step-by-step explanation:

8 0
2 years ago
And the other question is, AC and A' C' are on parallel lines: true or false
pickupchik [31]

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Step-by-step explanation:

False

8 0
3 years ago
Find the lateral area and surface area of the cylinder, Round to the nearest tenth<br> 3 cm<br> 6 cm
Trava [24]

Answer:

3/6 then round it

Step-by-step explanation:

8 0
2 years ago
A nationwide census is conducted and it is found that the mean number of hours of television watched per year by Americans is 35
Ber [7]

Answer:

Probability that a group of 4 Americans watch more than 400 hours of television per year is 0.3264.

Step-by-step explanation:

We are given that a nationwide census is conducted and it is found that the mean number of hours of television watched per year by Americans is 350 with a standard deviation of 220.

A group of 4 Americans is selected.

Let \bar X = <u><em>sample mean number of hours of television watched per year</em></u>

The z score probability distribution for sample mean  is given by;

                             Z  =  \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }  ~ N(0,1)

where, \mu = population mean = 350

            \sigma = standard deviation = 220

            n = sample of Americans = 4

Now, the probability that a group of 4 Americans watch more than 400 hours of television per year is given by = P(\bar X > 400 hours)

     

     P(\bar X > 400) = P( \frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } } > \frac{400-350}{\frac{220}{\sqrt{4} } } ) = P(Z > 0.45) = 1 - P(Z \leq 0.45)

                                                        = 1 - 0.6736 = <u>0.3264</u>

The above probability is calculated by looking at the value of x = 0.45 in the z table which has an area of 0.6736.

Hence, the probability that a group of 4 Americans watch more than 400 hours of television per year is 0.3264.

6 0
3 years ago
What fraction does the number line show?
Alla [95]

Answer:

1/7

Step-by-step explanation:


4 0
3 years ago
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