On being brought from africa to america
by phillis wheatley
'twas mercy brought me from my pagan land,
taught my benighted soul to understand
that there's a god, that there's a saviour too:
once i redemption neither sought nor knew.
some view our sable race with scornful eye,
"their colour is a diabolic die."
remember, christians, negros, black as cain,
may be refin'd, and join th' angelic train.
which literary element is responsible for the change of tone in the last couplet of the poem?
diction
irony
imagery
syntax

According to stephen hawking in the "origin of the universe" lecture, "why are we here" and "where did we come from" are questions that

Which one of these lines use him to permitte which one of these lines uses iambic pentameter?

One of the author’s purposes in the code book is to explain different types of codebreaking to his readers. which line best demonstrates this purpose? a theoretical breakthrough would be a fundamentally new way of finding alice's private key mathematicians have been studying factoring for centuries, and modern factoring techniques are not significantly better than ancient techniques a more recent development is the so-called tempest attack, which aims to detect the electromagnetic signals emitted . . in a computer's display unit if scientists could build a quantum computer, it would be able to perform calculations with . . enormous speed