Answer:
(b) It is symmetrical about
Step-by-step explanation:
Given
See attachment for options
Required
True statement about the graph
First, we check the line of symmetric
Expand
Open bracket
A quadratic equation has the following line of symmetry
By comparison, the equation becomes:
Hence, the line of symmetry is at:
(b) is true.
Answer:
207
Step-by-step explanation:
The sum to n terms of an arithmetic sequence is
= [ 2a₁ + (n - 1)d ]
where a₁ is the first term and d the common difference
Here a₁ = 37 and d = 34 - 37 = - 3 , thus
= [ (2 × 37) + (17 × - 3) ]
= 9( 74 - 51)
= 9 × 23
= 207
Answer:
2
Step-by-step explanation:
only 4/5 and -4/5 are 4/5 away from 0
(B) "had prepared us equally well for the challenges of
work and of further study"
The provided statement has a parallelism mistake. The noun "work" should be used instead of "working," as the two elements united by "and" should be parallel. Option B fixes this issue without creating any other ones.
There is a parallelism mistake in Option (A). The noun "work" should be used instead of "working," as the two elements united by "and" should be parallel. Choice (C) has an agreement mistake. Our numerous liberal arts courses are a plural topic, thus the singular verb "has supplied" is incongruous.
Choice (D) has an agreement mistake. Our numerous liberal arts courses are a plural topic, thus the singular word "leaves" does not make sense. Choice (E) uses awkward language. It should be "prepared us for," rather "were the preparation for making."
Here's another question with an answer similar to this about parallelism:
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