How to tell whether each function is quadratic

Which answer shows 2.13786x10^4 written in standard form

Find the solution of 5 times the square root of the quantity of x plus 7 equals negative 10, and determine if it is an extraneous solution

Graph the linear function. H (x) = 1/4x-2 I already made the x table. What would h (x) (same as y) be if x is this. X=-2,-1,0,1,2 Just tell me what y would equal to if you substitute, I'll graph it on my own.

What is 150% of 625? using an Equation

Find the x intercepts of a parabola with vertex (4,-20) and y-intercept (0,-4)

A local gaming club has more than 2 but fewer than 20 members. Every member of the group purchased a signed copy of the latest book from the legendary Dumas, for a grand total of $299.

When a number is decreased by 20% of itself, the result is 72. What is the number?

How many strings of 12 decimal digits begin with "248" or consist only of even digits?

The Associative Property applies to which operations? Check all that apply. A. - B. x C. + D.

A sequence has the recursive rule f (n) = 2f (n-1). The first term of the sequence is 7. Write the first 3 terms of the sequence