Answer:
15
Step-by-step explanation:
To evaluate f(- 1) substitute x = - 1 into f(x), that is
f(- 1) = 5(2 - (- 1)) = 5(2 + 1) = 5 × 3 = 15
Equal to 1:
Less than 1:
Greater than 1:
Step-by-step explanation:
We will solve each product one by one.
So,
As we have all the answers now.
- If the denominator of a fraction is greater than ts numerator then the result is less than 1
- If the denominator of a fraction is less than its numerator then the result is greater than 1.
So,
Equal to 1:
Less than 1:
Greater than 1:
Keywords: Fractions, decimals
Learn more about fractions at:
#LearnwithBrainly
Answer:
is infinite set... because dots meaning non stop
Answer:
The even numbers between 0 and X represents an arithmetic sequence with a common difference of 2
The rule of arithmetic sequence = a + d(n - 1)
Where a is the first term and n is the number of terms
So, for the even numbers between 0 and X
The first term = a = 0
d = 2
So, we need to find n at the last term which is X
∴ X = 0 + 2 ( n -1 )
∴ n - 1 = X/2
∴ n = X/2 + 1
The sum of the arithmetic sequence = (n/2) × (2a + (n−1)d)
Substitute with a and d and X
So, the sum = (n/2) * (2*0 + (n−1)*2)
= (n/2) * ((n−1)*2)
= n(n-1)
= (X/2 + 1) * (X/2)
= X/2 by (X/2 + 1)
So, The quick way to add all even numbers between 0 and X always works.
