3 years ago

2.77 x 10^3 + 1.04 x 10^4

2 answers:

6 0

13170 is the answer. If u cant do the 10^3 power then do 10 times 10 times 10 times 10 and so on for the other number using the power numbers. You could try using a calculator and see if your answers match

Alex Ar [27]3 years ago

4 0

2.77*10^3+1.04^10^4
2.77*10^3=2770 where (10^3=1000, so 1000*2.77)
1.04*10^4=10400 where (10^4=10000, so 10000*1.04)

2770+10400
=13170

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2/3 = 26.<br> Show work please. I alr know the answer but my teacher want work showed

Katen [24]

$\dfrac{2}{3}x=26\\\\x=26\div \dfrac{2}{3}=26\cdot\dfrac{3}{2}=39$

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4 years ago

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diamong [38]

Answer:

Choices C and D

Step-by-step explanation:

The most simplest way is just to solve each one and see which two have the same answer as the first expression.

But you could also see that both of the $\frac{4}{7}$ are going to cancel each other out so you are left with $-\frac{8}{9} +\frac{9}{8}$ which is also choice C.

For choice D I distributed the negative one to the insides of the parenthesis that left me with $-\frac{4}{7}-\frac{8}{9}+\frac{4}{7} +\frac{9}{8}$ which is the same expression as the first one.