Answer:
28
Step-by-step explanation:
You multiply 7 and 8, and then divide it by two.
The simplification form of the provided expression is x¹⁸a³b³ option
(d) x¹⁸a³b³ is correct.
<h3>What is an integer exponent?</h3>
In mathematics, integer exponents are exponents that should be integers. It may be a positive or negative number. In this situation, the positive integer exponents determine the number of times the base number should be multiplied by itself.
It is given that:
The expression:

After using the integer exponent property:

= a³b³x¹⁸ Or
=x¹⁸a³b³
Thus, the simplification form of the provided expression is x¹⁸a³b³ option
(d) x¹⁸a³b³ is correct.
Learn more about the integer exponent here:
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Answer:
-2
Step-by-step explanation:
5+(-7) is the same as saying 5-7, so lets looks at this
Answer:
CosC=0.99
Step-by-step explanation:
Cos C =adjacent /Hypothenus
=36/45
=0.99