10)Dados dois números, a e b, representados por a = 3x + 4 e b = 4x – 1, determine o valor de a+ b2.
a) 9x2 + 24x + 16
b) 16x? – 8x + 1
C) 25x2 + 16x + 17
d) 7x2 – 32x – 15
PLMS É PRA HOJE

Find the volume of the described solid.the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x.a) 441b) 147c) 864d) 882

Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?

What is the value of x enter your answer in the box (3x+50