A geologist studying the earth’s crust measured the temperature at 3 km below the surface. He found that the temperature had increased by 60 degrees Celsius compared to the surface. At what rate is the temperature increasing? Show your work.

Mr. walker gave his class the function f(x) = (x + 3)(x + 5). four students made a claim about the function. each student’s claim is below. jeremiah: the y-intercept is at (15, 0). lindsay: the x-intercepts are at (–3, 0) and (5, 0). stephen: the vertex is at (–4, –1). alexis: the midpoint between the x-intercepts is at (4, 0). which student’s claim about the function is correct?

Which of the following expressions is equal to 2x^2+8

Can you divide 25 into 4 equal groups? explain why or why not.