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Rasek [7]
2 years ago
10

Help me with this question​

Mathematics
1 answer:
aniked [119]2 years ago
3 0

Answer:

a) 150

b) 2650

Step-by-step explanation:

6% of 2500 is 150

150 + 2500 = 2650

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The number 1953125 is equal to 5^9. Explain how the information above tells you that it is not a square number. I've tried the a
ddd [48]

Answer:

5^{9} can not be expressed as a square of any other number.

Step-by-step explanation:

The number 1953125 is equal to 5^{9}.

Now, the above statement gives an idea that 1953125 i.e. 5^{9} is not a square number as 9 is not a multiple of 2.

So, we can not express 5^{9} as a square of any other number.

We can only express 5^{9} as (5^{4} )^{2} \times 5.

( Answer )

5 0
3 years ago
I need help with this question.
xz_007 [3.2K]

Answer:

b. 14

Step by step explanation:

5 0
3 years ago
a radioactive substance has a Decay rate of 5% per hour. if 500 hundred grams are present initially, how much of the substance r
kirza4 [7]
First we have to calculate the half-life
half-life = elapsed time * log (2) / log (bgn amt / end amt)
half-life = 1 hour * 0.30102999566 / log (1 / .95)
half-life = 0.30102999566 / log (<span> <span> <span> 1.0526315789 )
</span> </span> </span>half-life = 0.30102999566 / 0.022276394692
half-life = <span> <span> <span> 13.5134073454 hours
</span> </span> </span>
Ending Amount = Beginning Amount / 2^n
Where "n" = number of half-lives
For 4 hours, "n" equals
4 / 13.5134073454
=<span> <span> <span> 0.2960023255

</span></span></span>Ending Amount = 500 grams / 2^.2960023255
Ending Amount = 500 grams /<span> <span> <span> 1.2277376629
</span> </span> </span>Ending Amount = <span> <span> <span> 407.2531250707 grams

Source:
http://www.1728.org/halflife.htm


</span></span></span>
3 0
3 years ago
Rapheal saw a square patio that was 12 feet long on each side. He wants to bulid a patio that will be 15 feet long on each side.
olasank [31]

Answer:

Answer key:

The change in the scale factor is <em>4/5.</em>

12 / 15

12 ÷ 3 = 4

15 ÷ 3 = 5

4/5

Answer key: The change of scale means that 1 inch represented 4 feet, but now 1 inch represents <em>5 feet.</em>

1 inch represents 4 feet which factors 12 feet.

4 cannot factor 15 feet.

5 can factor 15 feet.

1 inch would represent 5 feet then.

15 ÷ 5 = 3 inches

6 0
3 years ago
Read 2 more answers
Ann's car can travel 228 miles on 6 gallons of gas write an equation to represent the distance Y in miles ann's the car can trav
kvv77 [185]

Answer:

114y times 3x

Step-by-step explanation:

cancel it down to its lowest possible form so 228 decided by 2 is 114 and what you do to one side you do to another so 6 decided by 2 is 3 so if y is the miles you have 114 miles so 114y time x witch is 3 so x is 3

7 0
3 years ago
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