Question
If x^2 - 7x + k = 0 has roots that are equal, what is
the value of k?Solution
For equal roots, the discriminant must be zero: b^2 - 4ac = 0 → (-7)^2 - 4(1)(k) = 0 49 - 4k = 0 4k = 49 k = 49/4 = 12.25.
I remember him saying that a juvenile judge without the support of a social worker would be like a fly out of basket .
An idiom/phrase is given in bold. Following this idiom/phrase are given three sentences, which use the given idiom/phrase. The idiom/phrase may or may ...
An idiom/phrase is given in bold. Following this idiom/phrase are given three sentences, which use the given idiom/phrase. The idiom/phrase may or may ...
Fill in the blank with an appropriate idiom.
Her husband is such a gem that all her friends tell her that she has ________ with him.
Directions : An idiom/phrase is given in bold. Following this idiom/phrase are given three sentences, which use the given idiom/phrase. The idiom/phras...
- In each of the following questions, an idiomatic expression/proverb has been given in bold– followed by four alternatives. Choose the one which best expr...
- Select the most appropriate idiomatic expression to fill in the blank.
In the business world you quickly learn to___________.
... In the following question, a sentence is given with the phrase or idiom highlighted in bold. Select the option given below that cannot replace the phra...
Can't cut the mustard
Give it a whirl
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