The phrase "acknowledge whether" is correct and usable in written English.
It can be used when you want someone to confirm or recognize a particular condition or situation.
Example: "Please acknowledge whether you will be attending the meeting next week."
Alternatives: "confirm if" or "recognize whether".
The letter does not acknowledge whether the son is even in custody.
"It's like a soap opera," said O'Neal, who refused to acknowledge whether Bryant attended the gathering at his home.
The phone companies have said almost nothing publicly about the lawsuits, refusing even to acknowledge whether they had assisted in the wiretapping program.
While neither of them would acknowledge whether or not they were aware of the secret interrogation policy, it is clear that Blair did know of its existence.
Ferguson was so incensed by the charge he did not even submit a reply before Monday's deadline to acknowledge whether he pleaded guilty or wanted to fight the case.
And it is they who will acknowledge, whether we like it or not, that the rhetoric and imagery of the pro-life movement can touch on some basic emotional truths.
Participants who'd gotten the cold shoulder reported feeling more socially disconnected than people who'd gotten acknowledged, whether that acknowledgement came with a smile or not.
It may be right to say the problems of the county go back for years but, as Ms. Altmann acknowledged, whether it's right or not may not matter to voters.
Although invoking the Fifth Amendment is usually associated with live testimony, his lawyers argued that it fell under a precedent for document production requests that are so broad that the act of acknowledging whether any such files exist could amount to self-incriminating testimony.
The justice department's grounds for asserting the state-secrets privilege, long the target of criticism by human rights lawyers as a legal gambit for covering up wrongdoing under the veil of national security, is that the government "has never officially acknowledged whether either witness had any role in the former detention and interrogation program.
In an ideal working world, you would be able to be open and honest with your employers, but, as Chris Smith, principal consultant at the Bath Consultancy Group, acknowledges: "Whether you can do that depends on your situation, not everyone has that sort of relationship with their boss".
