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3 years ago

Write 7x10^-8 in standard form

Mathematics

2 answers:

dexar [7]3 years ago

8 0

Hey there! I'm happy to help!

Standard form is just writing this without the multiplication sign. If you multiply a number by 10 to a negative number, \you take the number in the negative exponent and move the decimal to the left that many times. In our case, we move it to the left 8 times.

If we move the decimal to the left 8 times, we have 0.00000007.

I hope that this helps! :D

attashe74 [19]3 years ago

6 0

Answer:

The answer would be 0.00000007

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The difference between 2 numbers is 8. The sum of the two numbers is 20. Find the number.

Igoryamba

Answer:

The numbers are 6 and 14

Step-by-step explanation:

Let the two numbers be x and y

x-y = 8

x+y = 20

Add the two equations

x-y = 8

x+y = 20

-----------------

2x = 28

Divide by 2

2x/2 = 28/2

x = 14

Subtract the two equations

x-y = 8

-x-y = -20

-----------------

-2y = -12

Divide by -2

-2y/-2 = -12/-2

y = 6

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3 years ago

Read 2 more answers

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Maurinko [17]

Answer:

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Step-by-step explanation:

Alicia uses 3/4 gallon of paint to paint her room.

Alicia use = 3/4 gallon of paint

Becca uses for 4/5 gallon more than Alicia to paint her room.

Becca uses = Alicia (3/4 gallons ) + 4/5

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Total paint used together = Aliccia used + Becca used

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Add like fractions 3/4 + 3/4 becomes 6/4

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Make the denominators same

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$\frac{46}{20}$

Divide top and bottom by 2

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Answer:

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Step-by-step explanation:

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