I really need help on this!

Mathematics

1 answer:

Svet_ta [14]3 years ago

5 0

Answer:

The answer is C, or $104.50.

Step-by-step explanation:

You'd think you'd get off easy by just adding the admission prices together. But also recognize that's an outlier compared to the other answers, and it's not just one adult and one child. It's two adults and four children. So, you need to multiply the admission price by the number of people, then add together. $15.25 times 4 children is $61.00. $21.75 times 2 adults is $43.50. Add those.

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A and b are natural numbers. The diameter of cell a is 2.3 , and the diameter of cell b is 2.3 .

Pani-rosa [81]

After clarification we see the respective diameters are

$A = 2.3 \times 10^{-a}$

$B = 2.3 \times 10^{-b}$

We're asked about the ratio

$A:B = 2.3 \times 10^{-a} : 2.3 \times 10^{-b} = 10^{-a} : 10^{-b} = 10^b : 10^a = 10^{b-a} : 1$

Now we can go through the choices.

A. If a = 4 and b = 6, then cell a is 100 times greater than cell b.

$A:B=10^{6-4}:1 = 100:1$

It would be more proper to say the diameter of cell A is 100 times the diameter of cell B, but yes, this is TRUE.

B. If a = 4 and b = 6, then cell b is 100 times greater than cell a.

FALSE. 10 to the minus 4 is 100 times bigger than 10 to the minus 6, so a is bigger.

C. If a = 4 and b = 6, then cell a is 2 times greater than cell b.

FALSE. We already calculated its 100 times bigger.

D. If a = 4 and b = 6, then cell b is 2 times greater than cell a.

FALSE.

8 0

3 years ago

Read 2 more answers

A grocery store sells avocados for $1.25 each. The graph shows the cost for different numbers of avocados.

Aleksandr [31]

I don’t know if this is right or not so, sorry if it’s wrong ;-;

1,2,3,4,5 = independent

c=1.25a = neither

$1.25, $2.50, $3.75, $5.00, $6.25 = dependent

Number of avocados = independent

Cost of avocados = dependent

If this is right then I’ll put the explanation in the comments, again sorry if it isn’t.

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3 years ago

Nicole has $9 to spend on cards. She finds friends with the same amount of money to split the cost of a set. One set costs $27.

azamat

Each friend gets three cards.

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3 years ago

Select the correct answer.

blsea [12.9K]

Answer: as the sample size is approximately large, the margin of the error is 0.15

Step-by-step explanation:

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