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3 years ago

A chemist measures 8 grams of a substance that has a half-life of 6

Mathematics

1 answer:

Olenka [21]3 years ago

6 0

Idk Idk idk idk idk idk idk idk idk idk irk

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A study on the latest fad diet claimed that the amounts of weight lost by all people on this diet had a mean of 23.2 pounds and

erica [24]

Answer:

The standard deviation of the sampling distribution of sample means would be 0.8186.

Step-by-step explanation:

We are given that

Mean of population=23.2 pounds

Standard deviation of population=6.6 pounds

n=65

We have to find the standard deviation of the sampling distribution of sample means.

We know that standard deviation of the sampling distribution of sample means

= $\frac{\sigma}{\sqrt{n}}$

Using the formula

The standard deviation of the sampling distribution of sample means

= $\frac{6.6}{\sqrt{65}}$

$=0.8186$

Hence, the standard deviation of the sampling distribution of sample means would be 0.8186.

3 0

3 years ago

M AEB = 37°, what is m CED?

Oksana_A [137]

Answer: 53 degree

Explanation:

AEB + BEC + CED = 180 degree
37 + 90 + CED = 180
CED = 180 - 127
CED = 53 degree

6 0

3 years ago

A random number generator app on your phone generates two numbers between 0 and 8. What is the probability that the first number

aev [14]

Answer:

1/27

Step-by-step explanation:

There are 9 numbers between 0 and 8. 3 of them are less than 3 (0, 1, and 2), and 1 of them is 6.

The probability is therefore (3/9) (1/9) = 1/27.

8 0

3 years ago

Solve for x in the diagram below.

Ghella [55]

Answer:

x= 20

Step-by-step explanation:

The three angles add to 90 degrees

x+2x+x+10 = 90

Combine like terms

4x+10 = 90

Subtract 10 from each side

4x +10-10 = 90-10

4x = 80

Divide by 4

4x/4 = 80/4

x = 20

6 0

3 years ago

Read 2 more answers

Evaluate f(x) = -x to the second power + 1 for x = -3

professor190 [17]

I think it's 4 Yeah 4 something like that

5 0

3 years ago