Scientists discovered that a new spider can grow 5 legs every year, on top of the 4 legs it already starts with. Scientists used
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Answer:
Step-by-step explanation:
Here is a problem with the concept of properties of the exponent.
We are given and we have to find the value of 5x.
Now, {Since we are given that
}
⇒ {Since we can write
}
⇒ {Since we know the formula of exponent as
}
(Answer)
Here the my solutions,hope you understand
21.
So to solve for the value of a variable in an equation, you would need to isolate x on one side. The first thing you have to do is multiply 2 and (x + 7) together, which can be rewritten as 2(x) + 2(7). After multiplying, your equation would be: , or A.
22.
So the rule with multiplying exponents with the same base is to add the exponents together, and the rule with dividing exponents with the same base is to subtract the exponents. Your equation will be simplified as such:
Now the rule with converting negative exponents into fractions is . In this case, 4^-2 would turn into
, or C, which is your final answer.