Math 8
1 answer:
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Answer:
Since the value of f(0) is negative and the value of f(1) is positive, then there is at least one value of x between 0 and 1 for which f(x) =0.
Step-by-step explanation:
The equation f(x) given is:
For x = 0. the value of the expression is:
For x = 1, the value of the expression is:
Since the value of f(0) is negative and the value of f(1) is positive, then there is at least one value of x between 0 and 1 for which f(x) =0.
In other words, there is at least one solution for the equation between x=0 and x=1.
is an irrational number ⇒ answer B
Step-by-step explanation:
Let us explain the meaning of:
- A rational number is a number that can be written as a fraction
- An irrational number is a number that cannot be expressed as a fraction
Examples:
Rational numbers : 10 , , 0.333
Irrational numbers : π , √8 , ∛25 , (2 + √5) ,
∵
∵ 3 is a rational number
∴ is a rational number
∵
∵ There is no square root of 8
∴ is an irrational number
∵ 0.3333 can be expressed as
∴ 0.3333 is a rational number
∵ is a fraction
∵ All fractions are rational numbers
∴ is a rational number
is an irrational number
Learn more:
You can learn more about real numbers in brainly.com/question/4853862
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