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vazorg [7]
3 years ago
13

(5.42x10^2)—(2.1x10^-1) simplify and solve in scientific notation and please show work

Mathematics
1 answer:
stich3 [128]3 years ago
5 0

542÷100×100-(21÷10)÷10

=542-0.21=541.79=5.4179×10²

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Suppose you are interested in selling your home and would like to clear a net value of $300,000. If you have agreed to pay your
QveST [7]

Answer:

<h2>I need to sell the home for the price of $317,460.</h2>

Step-by-step explanation:

I need to pay 5.5% of the total to the broker.

I also want to gain $300,000 as a profit. I need to sell the house in such a price, so that after giving the 5.5% to the broker, i also have $300,000.

I need to find the value of 100%, where (100 - 5.5) = 94.5% represents  $300,000.

Hence, 100% = \frac{300000}{94.5} \times 100 = 317460.3.

8 0
3 years ago
The mean age of 11 women in an office is 31 years old.
BlackZzzverrR [31]

Answer: 30.2

Explanation:

The mean is calculated by taking the sum of the values and dividing by the count.

For instance, for the 6 women, with the mean being 31, we can see that the ages summed to 186:

186

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=

31

And we can do the same for the men:

116

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=

29

And now we can combine the sum and count of the men and women to find the mean for the office:

186

+

116

10

=

302

10

=

30.2

Step-by-step explanation:

3 0
2 years ago
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A recursive rule for an arithmetic sequence is a1=4;an=an−1+3 . What is an explicit rule for this sequence? Enter your answer in
avanturin [10]

Answer:

an=3n+1

Step-by-step explanation:

5 0
3 years ago
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Four speed skaters, Marco, Naim, Oliver, and Pedro, compete in a relay race where they all agree that Naim will be the last
allochka39001 [22]

Answer:

A = {MOPN, MPON, PMON, POMN}

Step-by-step explanation:

Everyone has already agreed that Naim would be the last skater, so we have to make sure that the result has 'N' in each last place. As we can see, they all have this.

Now, we also have to make sure Oliver <u>not</u> first, because although they're trying to decide, the problem asks for the <u>complement</u> in which "Oliver is the first skater in the race."

A complement is all the values that are NOT in the set, so it cannot be A = {OPMN, OMPN) or A = {MOPN,MPON, OPMN, POMN), because they both have at least one case where 'O' is first.

A complement is ALL other values of the set, so it cannot be A = {MOPN, PMON}, because that set only shows two possible values.

Therefore, A = {MOPN, MPON, PMON, POMN} is your answer.

5 0
2 years ago
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What is another to describe an equilateral triangle . PICK BELOW
krok68 [10]
The answer is a right triangle meaning that all sides and angles are equal.
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3 years ago
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