You have r^2 = 64 and want to find the square root of 64, which we'll call r.
√(r^2) = r = plus or minus √64
or: r = plus or minus 8
Answer:
This question cannot be solved.
Step-by-step explanation:
It has more than one equal sign; there is no way to compute this.
"2.5 to 3.5", "5.5 to 6.5", "-1.5 to -0.5" and "1.5 to 2.5" are the range of x-values among the following choices given in the question for which <span>the polynomial must have a root. The correct options among all the options that are given in the question are options "A", "C", "E" and "F". I hope that the answer has come to your help.</span>
Answer: Choice B) Integers include whole numbers and natural numbers.
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Explanation:
Let's go through the four answer choices to see which are true or false.
- A) False. A rational number like 2/3 is not a natural number (1,2,3,4,...). This is one counterexample out of infinitely many.
- B) True. The set of integers is {..., -3, -2, -1, 0, 1, 2, 3, ...} basically positive and negative values that don't have fractional or decimal components. Zero is included.
- C) False. Similar reasoning as choice A above.
- D) False. A natural number like 7 can be written as 7/1, which means it is a rational number. Any rational number is of the form a/b with a,b being integers and b is nonzero.
