Answer quickly i do not need an explanation just the answer
if f(x)= sr1/2x-10 +3, which inequality can be ued to find the domin of f(x)?
a. sr1/2x _> 0
b. 1/2x _> 0
c. 1/2x-10 _> 0
d. sr1/2x-10 +3 _> 0
"sr" means square root and "_> " is greater than or equal to. the "+3"s are not under the square roots

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Explain why the factor 1.5 is broke. into two numbers in the model.

Someone answer asap for ! michele pushes a box d meters across a floor. she uses a force f, in newtons, to push the box. she pushes the box for t seconds. the formula p = fd/t calculates the power, p, in watts, that it takes for michele to complete the task. solve the formula for d.