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3 years ago

What happens to the decimal point when you divide by 10?

2 answers:

6 0

Well lets try it

$\frac{1}{10}$ = 0.1
$\frac{0.5}{10}$ = 0.05

So based on this we can understand that it moves to the left 1 place :)

erma4kov [3.2K]3 years ago

4 0

Moves to the right 1 place

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The probability that a lab specimen contains high levels of contamination is 0.10. A group of 4 independent samples are checked.

galben [10]

Answer:

a) 0.6561

b) 0.2916

c) 0.3439

Step-by-step explanation:

We are given the following information:

Let us treat high level of contamination as our success.

p = P(High level of contamination) = P(success) = 0.10

n = 4

The, by binomial distribution:

$P(X=x) = \binom{n}{x}.p^x.(1-p)^{n-x}\\\text{where x is the number of success}$

a) P(No high level of contamination)

We put x = 0, in the formula.

$P(X=0) = \binom{4}{0}.(0.10)^0.(1-0.10)^{4} =0.6561$

Probability that no lab specimen contain high level of contamination is 0.6561

b) P(Exactly one high level of contamination)

We put x = 1, in the formula.

$P(X=1) = \binom{4}{1}.(0.10)^1.(1-0.10)^{3} =0.2916$

Probability that no lab specimen contain high level of contamination is 0.6561

c) P(At least one contains high level of contamination)

$p(x \geq 1) = 1 - p( x = 0) = 1 - 0.6561 = 0.3439$

Probability that at least 1 lab specimen contain high level of contamination is 0.3439

8 0

3 years ago

PLEASE HELP

adell [148]

We know that
in a right triangle
Applying the Pythagoras Theorem
c²=a²+b²

in this problem
c=√87 yd
a=√23 yd
b=?
so
b²=c²-a²-----> b²=(√87)²-(√23)²----> b²=87-23----> b²=64----> b=8 yd

the answer is
8 yd

4 0

3 years ago

Read 2 more answers

Find the absolute value.<br> |18|

mezya [45]

Answer:

Step-by-step explanation:

The absolute value means how far it is from 0 and 18 it 18 numbers from 0! For negative numbers its the same |-18| would be 18 as well because it is 18 numbers from 0.

5 0

3 years ago

SOMEONE PLEASE ANSWER ASAP FOR BRAINLIEST!!!!!

kipiarov [429]

If you take 230 subtract from 180 you will get 50 so the price for adult tickets are $50

7 0

3 years ago

When 3 times the number x is subtracted from 20, the result is 14. What number results when 4 times x is added to 5?

Vladimir [108]

Answer:

50.3

Step-by-step explanation:

I think

3 0

3 years ago