Answer is the third one. It is the only answer where all points work in the equation.
Answer: third choice
Hey.
I hope that you're familiar with P.E.M.D.A.S :)
applying PEMDAS :
2 + 6 × 5 ÷ 8
2 + 30 ÷ 8
32 ÷ 8 = 4
Hence, The required answer is 4
Thanks.
A number is rational if it can be written in form a/b where a and b are integers and b is not equal to 0
integers are like -4,-3,-2,-1,0,1,2,3,4, etc
so
√20=2√5 which is irrational because we can't write it as a fraciton with only integers
also a rational number multilied by an irratinonal number=irrtaional
we know that the square root of any prime number will be irrational and 5 is prime so 2 times √5=rational times irrational=irrational
√20 is irrational
The equivalent expression to 11^-7 × 11^5 is one over eleven raised to the second power. option A
Exponential
11^-7 × 11^5
= 11^(-7+5)
= 11^(-2)
= 1 / 11²
Options:
one over eleven raised to the second power
(1/11)²
one over eleven raised to the power of negative two
(1/11)^-2
11^2
−11^2
Therefore, the equivalent expression to 11^-7 × 11^5 is one over eleven raised to the second power.
Learn more about exponential:
brainly.com/question/27161222
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