How do you simplify the expression “3x (2/x + 5) +4”?
2 answers:
Answer:
15x+10
Step-by-step explanation:
3x (2/x + 5) +4
Distribute the 3x
3x*2/x + 3x*5 +4
6x/x + 15x +4
6+15x+4
Combine like terms
15x+10
Answer:
15x + 10
Step-by-step explanation:
distribute the 3x to the 2/x and 5 inside the parentheses:
3x(2/x) + 3x(5) + 4
multiply:
6x/x + 15x +4
There is x in the numerator and the denominator of 6x/x, so the xs cancel:
6 + 15x + 4
15x + 10
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(g-5h)(g-7h). Hope this helps!
Answer:
Explanation:
(3 × 10⁸) × 2 × 10³
3 × 10⁸ × 2 × 10³
3 × 2 × 10⁸ × 10³
6 × 10¹¹
In decimal: 600,000,000,000
Answer:
sas :)
Step-by-step explanation:
To calculate what is asked we use the formula for radioactive decay. It is expressed as follows:
An = Ao (e^(-kt))
We calculate as follows:
An = Ao (e^(-kt))
74 = 100 (e^(-k(10)))
k = 0.0301
1/2 = (e^(-0.0301t))
t = 23 hours
Hope this answers the question.
