We have this:
7 + 2(5 - 2 * 3 ^ 2)
USE PEMDAS...Do you know what PEMDAS stands for?
Work out the inside of the parentheses first.
Inside we have this guy:
5 - 2(3)^2
5 - 2(9)
5 - 18
-13
We now have this:
7 + 2(-13)
7 - 26 = -19
Done!
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NEXT:
Name the sets of numbers to which 457 belongs.
457 belongs to the following family of numbers:
natural
whole
intergers
real numbers
I have doubt about rational.
Rational numbers are basically fractions.
Unless you meant to type 0.457, did you?
In other words, if a number can be written as a decimal (a decimal is basically a fraction) that either repeats forever or simply ends (called a terminating decimal), then the number is RATIONAL.
Can 457 be expressed as decimal number?
NO, it cannot!
This is why I doubt that the family of numbers above includes rational for 457.
See my point?
1)Find the value of 7+2(5-2*3^2)
7+2(5-2*9)
7+2(5-18)
7+2(-13)
7+-26
(answer)-19
2)Name the sets of numbers to which 457 belongs.
(answer)natural,whole,integers,rational,reals
1 answer
1 answer