Can someone pleaseeee tell me what these areee

Mathematics

1 answer:

Dima020 [189]3 years ago

5 0

Question #9 - - 11/30

Question #10 - - 3/11

Question #8 - - 147/290

I really hope this helps. Good luck!

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If 0.00005893 is expressed in the form 5.893 × 10n, what is the value of n ?

yan [13]

In the scientific value of 5.893 x 10n. The standard value is 0.00005893 what is n? To better illustrate this phenomenon, we can explain it further under the rules of scientific notation.
For example. 
1. 3 x 10^3 = 3 x 100 = 300
2. 3 x 10^-3 = 3 x 0.001 = 0.003

Solution:
0.00005893 = 5.893 x 0.00001 = 5.893 x 10^-5
n= ^-5

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3 years ago

3x-5y=60 4x+5y=-4 what is the system of linear equation

Sergeu [11.5K]

(3x-5y=60)

4x+5y=-4

3(8)-5(7.2)=60

4(8)+5(-7.2)=-4

7x=56

÷7. ÷7

x=8

3(8)-5y=60

4(8)+5y=-4

32+5y=-4

-32. -32

5y=-36

÷5. ÷5

y=7.2

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3 years ago

For a science report, Doug is measuring widths of mushrooms with a ruler that divides inches as shown. To determine each width,

Serga [27]

From the 3 options listed, both $5.25$ in and $6.5$ in could be measures found using a ruler with eighth inches marked, because those decimals can be written in terms of eighth fractions.

$5.25 $in $ \rightarrow (5 + 0.25) $in $ \rightarrow (5 + \frac{2}{8} ) $in$ \\ 
6.5 $in $ \rightarrow (6 + 0.5) $in $ \rightarrow (5 + \frac{4}{8} ) $in$$

The other option, $7.1$ in, is not a possibility because 0.1 cannot be written as a fraction of 8 that is marked on the ruler.