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ella [17]
3 years ago
6

What's the product of 21 and (6.3 times 10-4)

Mathematics
1 answer:
lubasha [3.4K]3 years ago
3 0
21(6.3 x 10 - 4).  Remember PEMDAS.  Everything done in parenthesis is done first.

Within the parenthesis, there is multiplication and subtraction.  In PEMDAS, multiplication/division comes before addition/subtraction, so 6.3 x 10 = 63.
63 - 4 = 59
21(59) = 1,239.
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8(-x - 7) > 16 I need the answer for it, I honestly don’t get it
Klio2033 [76]

Answer:

x > 8.125 or 8 & 1/8

Step-by-step explanation:

8( -x - 7) > 16

-8x - 49 > 16

     + 49 + 49

-8x > 65

x > 8.125 or 8 & 1/8

3 0
3 years ago
So this has to do with permutations and honestly I need an explanation on how I can figure these out.
AnnZ [28]
Well, the answer quite simple ....there are 4! ways to arrange these numbers...and as 4! = 4*3*2*1 = 24

hence 24 is the correct answer....


u can also remember it by theorem of multiplication as.....in first place (I.e. first code can be any no. out of 4,5,2&7 ....so 4*.....

as first place is acquired by a certain no. that leaves three no. to fill third place and when third place I'd occupied it leaves 2 numbers to fill second place and lastly only one no. to fill the last place .....so it's result will be like 4*3*2*1.



I know this is pretty much confusing ....but still I tried my best....

if anything troubles u here feel free to ask me
6 0
4 years ago
Y=x^4-x^3-5x^2-x-6<br> Show steps
Nat2105 [25]

Answer:

The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with 0 and solve for x. x= i, −i, 3,−2

Step-by-step explanation:

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the cheese that ms.carter used to buy costs $6.00 per pound, but it's been marked up to 15%. suppose ms.carter buys 3.5 pounds o
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Original price: 
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Please Mark Brainliest If This Helped!

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