10^[ 12 - ( - 3 ) ] = 10^( 12 + 3 ) = 10^15 ;
We use the formula
:
The matching of definitions and terms are done below.
- Some number increased by two ⇒ b + 2
- A variable decreased by two ⇒ x – 2
- Product of an unknown value and two ⇒ 2z
- Quotient of some number and two ⇒ a ÷ 2
- An unknown value squared ⇒ y²
<h3>What is Algebra?</h3>
The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Match the verbal expression (term) with its algebraic expression (definition).
Some number increased by two ⇒ b + 2
A variable decreased by two ⇒ x – 2
Product of an unknown value and two ⇒ 2z
Quotient of some number and two ⇒ a ÷ 2
An unknown value squared ⇒ y²
More about the Algebra link is given below.
brainly.com/question/953809
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50÷8.5 = 5.88 but since we can’t have .88 of a person the answer would be five T-shirts
The total mass, in kilograms, of the nails the carpenter bought is 3.9 kilogram
<h3><u>Solution:</u></h3>
Given that carpenter bought 750 nails
Each nail has a mass of
kilogram
To find: total mass, in kilograms of the nails bought
The total mass of the nails bought can be found out by multiplying number of nails bought by mass of each nail
Number of nails bought = 750
Mass of each nail =
kilogram
total mass of the nails bought = number of nails bought x mass of each nail
![\text {total mass of the nails bought }=750 \times 5.2 \times 10^{-3}](https://tex.z-dn.net/?f=%5Ctext%20%7Btotal%20mass%20of%20the%20nails%20bought%20%7D%3D750%20%5Ctimes%205.2%20%5Ctimes%2010%5E%7B-3%7D)
![\text {total mass of the nails bought }=3900 \times 10^{-3}=\frac{3900}{1000}=3.9](https://tex.z-dn.net/?f=%5Ctext%20%7Btotal%20mass%20of%20the%20nails%20bought%20%7D%3D3900%20%5Ctimes%2010%5E%7B-3%7D%3D%5Cfrac%7B3900%7D%7B1000%7D%3D3.9)
Thus the total mass of nails bought is 3.9 kilogram