Answer:
17x^2
Step-by-step explanation:
8x^2-(-9x^2)= 17x^2
+8x-8x
Y = -4*6^(x-1). This is a geometric sequence, so you need a common ratio and a first term. The first term in this sequence is -4, and the common ratio is 6, so you will get this.
Answer:
y=3x+6
Step-by-step explanation:
Answer: 38.5 cm^2
Step-by-step explanation:
Length of wire = 7*2 + 4*2 = 22 cm
Radius of Circle = 22/(2pi) = 3.5 cm
Area of Circle = (3.5)^2*pi = 38.5 cm^2
A. Like charges repel each other. Just think opposites attract for charged particles.