How do you solve the simultaneous equations ?
y = x + 4
y = 2x² + 3x - 1

(1.16, 5.16) and (-2.16, 1.84)    to the nearest hundredth.

Step-by-step explanation:

By substitution. You substitute y = x + 4 into the second equation:

x + 4 = 2x^2 + 3x - 1

2x^2 + 2x - 5 = 0

x = [ -2 +/- sqrt (2^2 - 4*1*-5) ] / 2*2

= -1/2 +/1 sqrt 24/4

= 1.158 , - 2.158

When x =  1.158 , y = 1.158 + 4 = 5.158

When x = -2.158, y = -2.158 + 4 = 1.842.

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation:

this shows a reflection over the x-axis and is translated one unit down and 6 units to the right (x + 6, y - 1)

hope this !

~just a girl in love with shawn mendes