In a class 4 by 5 of student are girls then find the number of boys
1 answer:
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Answer:
Read below.
Step-by-step explanation:
Wrong:
(2.5 x 10^9) + (5.3 x 10^8) =
(2.5 + 5.3) x (10^9 x 10^8) =
7.8 x 10^7=
7.8 x 10,000,000=
780,000,000
<u>Bold is edited by me</u>
Correct:
(2.5 x 10^9) + (5.3 x 10^8)=
(2.5 x 1,000,000,000)+(5.3 x 100,000,000)=
2,500,000,000+5,300,000,000=
7,800,000,000
The problem is that whoever wrote it swapped the numbers in the parentheses, added a pair of them together and multiplied the other pair. You are not supposed to take out the pairs and swap them if you'd like or the answer is incorrect. Second mistake is that is not
I do not know how and where you got that answer from.
Answer:
Option 1 - y cubed z superscript 4
Step-by-step explanation:
Given : Expression y times y times y times z times z times z times z.
To find : Which expression is equivalent to given expression ?
Solution :
Re-write the expression as,
Write the number of time value repeat itself as the power,
or we can say that the expression is y cubed z superscript 4.
Therefore, option 1 is correct.