PLEASE HELP ON TIMMER!!! Which statement describes the solutions to x2 - 49 = 0?

There are two real solutions because 49 has two real square roots.

There are no real solutions because the square root of -49 is not a real
number.

There are two real solutions because all quadratic equations have two
solutions.

There is one real solution
because 49 is a perfect square.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin