Evaluate the expression for the given value of x.4x+9 for x =9
2 answers:
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The simplified expression by rationalizing the denominator is (C)
.
First we must simplify the expression:
Then we factor the rational parts and cancel it out:
Then we rationalize the expression:
<span>Finally, the simplified expression by rationalizing the denominator is (C).</span>
First we must simplify the expression:
Then we factor the rational parts and cancel it out:
Then we rationalize the expression:
<span>Finally, the simplified expression by rationalizing the denominator is (C)
Answer:
Step-by-step explanation:
Total number of tools for both = 564.
Dr Brown used 386 tools for 6 experiments.
average number of tools per experiment used by Dr Brown =
= 64
Dr Rachal used 236 tools for 8 experiments.
average number of tools per experiment used by Dr Rachal =
= 29
i. The number of more experiment that can be done by Dr Brown = (564 - 386) ÷ (64)
= 2.7668
Dr Brown can do two more experiments.
The number of more experiments that can be done by Dr Rachal = (564 - 236) ÷ (29)
= 11.1186
Dr Rachal can do 11 more experiments.
ii. Number of tools left after Dr Brown's experiments = 564 - 386
= 178
Number of tools left after Dr Rachal's experiments = 564 - 236
= 328