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Pavel [41]
3 years ago
6

Given A = {a, b, c}, how many subsets does A have including ∅? a. 4 b. 7 c. 8

Mathematics
1 answer:
djverab [1.8K]3 years ago
8 0
A set of n elements has 2^n subsets.

There are 3 elements in the set A, so the number of subsets is 2^3=8

You can write them out:
\{\{\}, \{a\}, \{b\}, \{c\}, \{a, b\}, \{a, c\}, \{b, c\}, \{a, b, c\}\}
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Alex bought six books priced at $8 each. He got a discount of 20% off the total cost. How much did Alex pay for the books? Write
Yanka [14]
6 books at $ 8 = (6 * 8) = 48

if he got a discount of 20%, then he paid 80%
0.80(48) = 38.40 <== what he paid
3 0
3 years ago
Read 2 more answers
Miguel deposits $5000 in an account
jeyben [28]

Then the amount of money will he have in his account after 10 years will be $7,454.16. Then the correct option is B.

<h3>What is compound interest?</h3>

Compound interest is the interest on a loan or deposit calculated based on the initial principal and the accumulated interest from the previous period.

Miguel deposits $5000 in an account earning 4% interest compounded monthly.

Then the amount of money will he have in his account after 10 years will be

We know the compound interest formula.

A = P (1 + r)^t

Where

A = amount

P = principal

r = rate of interest

t = time period (in year)

Then we have

\rm A = 5000 (1 + 0.04)^{10}\\\\A = 5000 (1.04)^{10}\\\\A = \$ \ 7454.16

More about the compound interest link is given below.

brainly.com/question/25857212

#SPJ1

5 0
2 years ago
Help againnn. Yes, I’m kinda slow
Leni [432]

So, the right option is 1. so if my ans was helpful u can follow me.

5 0
3 years ago
gail works for a vending company. she gets paid $64 per week plus 20% of her total salesm how much will her total sales for the
denis23 [38]
At least 680 in sales because 200$-64$ is 136. 136*5=680 because 136 is one fifth or 20% of 680
4 0
2 years ago
Can you help me with this please???
Dahasolnce [82]

Answer:

c?

Step-by-step explanation:


8 0
3 years ago
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