Answer:
k = 13The smallest zero or root is x = -10
Step-by-step explanation:
you can write "x^2" to mean "x squared"
f(x) = x^2+3x-10
f(x+5) = (x+5)^2+3(x+5)-10 ... replace every x with x+5
f(x+5) = (x^2+10x+25)+3(x+5)-10
f(x+5) = x^2+10x+25+3x+15-10
f(x+5) = x^2+13x+30
Compare this with x^2+kx+30 and we see that k = 13
Factor and solve the equation below
x^2+13x+30 = 0
(x+10)(x+3) = 0
x+10 = 0 or x+3 = 0
x = -10 or x = -3
The smallest zero is x = -10 as its the left-most value on a number line.
Answer:
Step-by-step explanation:
I would say the answer is 6
6 + 6 than times by two is 24
Answer:
0.8
Step-by-step explanation:
7 1/5 - 6 2/5 = 0.8
Answer:
130
Step-by-step explanation:
The Honda will cost 24480 - 1400 = 23080
The Toyota will cost 25500 - 0.1 * 25500 = 25500 - 2550 = 22950.
So the Toyota will cost 130 less
