If a school had 1531 students, about how many would you expect to have an IQ greater than 145?

383 students

Step-by-step explanation:

Average IQ = 115

So for IQ of 145 it's not average again.

So , 145 IQ should be 1/4 of the total number because it's no longer average .

So 1/4 of 1531 = 382.75 students approximately = 383 students

This answer is based on the assumption that average IQ is around 115.

So any one with IQ of 145 is not longer an average person concerning IQ.

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!