Answer:Real numbers are used in measurements of continuously varying quantities such as size and time, in contrast to the natural numbers 1, 2, 3, …, arising from counting. ... The real numbers include the positive and negative integers and fractions (or rational numbers) and also the irrational numbers.
Step-by-step explanation:
Answer:
5.2689 × 107
Step-by-step explanation:
Its been a long time since I did scientific notation but theres your answer.
Wish i could of made it clearer but i'm still learning
Hope it helps
The value of –3mn + 4 = –3 when m = 2 and n = 4 is –20
Solution:
Given expression is –3mn + 4 = –3.
To find the value of –3mn + 4 = –3 when m = 2 and n = 4.
⇒ –3mn + 4 = –3
Add 3 on both sides of the equation.
⇒ –3mn + 4 + 3 = –3 + 3
⇒ –3mn + 7 = 0
Substitute m = 2 and n = 4
⇒ –3 × 2 × 4 + 7
Using BODMAS rule first do the multiplication.
⇒ –6 × 4 + 4
⇒ –24 + 4
⇒ –20
Hence the value of –3mn + 4 = –3 when m = 2 and n = 4 is –20.
You just have to write it down (7.7.7.7.7.7.7=49)
