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Iteru [2.4K]
3 years ago
14

Is this a true statement, 1/3z + 2/3z * 9 = 9z

Mathematics
1 answer:
stealth61 [152]3 years ago
5 0
Yes, I’m pretty sure.
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John is 13 years old Lisa is four years older than John Bobby is six years younger than Lisa how old is Bobby
Anna11 [10]
Bobby is 11 years old.
6 0
2 years ago
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A collection of numerical information, such as the scores on a test, is referred to as simple random sampling.True / False.
Nimfa-mama [501]

Answer:

False. See explanation below.

Step-by-step explanation:

False

A simple random sample "is a subset of a statistical population in which each member of the subset has an equal probability of being chosen"

In other words that means in order to apply a random sampling we need to ensure that we have the same probability of inclusion for every possible element of the population of interest.

And for this case a collection of any numerical information is not referred as random sampling since we don't know if these scores are representative of the population of interest.

And we don't know if this information is obtained using any sampling frame or sampling methodology.  

8 0
3 years ago
A bag contains 5 blue marbles, 2 black marbles, and 3 red marbles. A marble is randomly drawn from the bag.
frosja888 [35]

Answer:

Question 1:  4/5 or %80

Question 2:  7/10 or %70

Step-by-step explanation:

<u>Step 1:  Find the total amount of marbles</u>

5 + 2 + 3

<em>10</em>

<em />

<u>Step 2:  Find the probability of not drawing a black marble</u>

Add the total amount of marbles that are not black

5 + 3

<em>8</em>

<em />

Now find the probability:  

8/10

4/5 or %80

Answer:  4/5 or %80

<u>Step 3:  Find the probability of not drawing a red marble</u>

Add the total amount of marbles that are not red

5 + 2

<em>7</em>

<em />

Now find the probability:

7/10 or %70

Answer:  7/10 or %70

3 0
3 years ago
Sine, cosine, and tangent are used when looking for a missing side length in the right triangle. True or False
natali 33 [55]
I’m pretty sure it’s true
5 0
3 years ago
Ruth wants to buy a skateboard for $56. She has $90 in her account. She spent $11.65 to buy stationary. She also wants to buy so
nevsk [136]
The answer is the second one I dont have that symbol on my keyboard but it’s the second answer on the multi choice
90-11.65-56=22.35
divide that by 3.72 u get 6 so she can only get six comics or any whole positive number lower than that. Therefore it’s #2
5 0
2 years ago
Read 2 more answers
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