Answer:
Step-by-step explanation:
(x - 8)*5 = 70
5x - 40 = 70
5x - 40 + 40 = 70 + 40
5x = 110
x = 110/5
x = 23
She started with 23
So You should have done
23 - 5 = 18
18 * 8 = 144
What you should have obtained was 144
Answer: A) -4
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Explanation:
The 3^0 in the denominator is equal to 1. Any nonzero number raised to an exponent of 0 is always 1. So this equation x^0 = 1 is true when x is nonzero.
This allows us to simplify to the equation 3^x = 1/81
Note how 81 = 3^4. Taking the reciprocal of 81 means the exponent goes from positive to negative. So 3^(-4) = 1/81. The rule is x^(-k) = 1/( x^k ). We could use logarithms to solve 3^x = 1/81.
Answer:
vanadium
Step-by-step explanation:
Answer:
2c^5 is the greatest common factor.
Step-by-step explanation:
I believe you meant 50c^6 and 16c^5. c6 and c5 have no meaning. c^6 and c^5 are the sixth and fifth powers of c, respectively.
What do the two terms of 50c^6 and 16c^5 have in common? c^5 is common to both c^6 and c^5, and so, if we factor out c^5, we get:
c^5(50c + 16).
Note that 50c and 16 have only 2 as their common factor: 2(25c + 8). Thus, the final factored form of 50c^6 and 16c^5 is 2c^5(25c + 8).
2c^5 is the greatest common factor.