Answer:
s = -4 ± √31
Step-by-step explanation:
Given 4
+ 32s = 60
divide by 4 throughout
s = -4 ± √31
Answer:
X2+8X+6=0
We add all the numbers together, and all the variables
X^2+8X+6=0
a = 1; b = 8; c = +6;
Δ = b2-4ac
Δ = 82-4·1·6
Δ = 40
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
X1=−b−Δ√2aX2=−b+Δ√2a
The end solution:
Δ−−√=40−−√=4∗10−−−−−√=4√∗10−−√=210−−√
X1=−b−Δ√2a=−(8)−210√2∗1=−8−210√2
X2=−b+Δ√2a=−(8)+210√2∗1=−8+210√2
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
Answer:
The rule is that its subtracting 2.5 every time
Step-by-step explanation:
13-2.5= 10.5, 10.5-2.5=8, 8-2.5=5.5, 5.5-2.5=3, 3-2.5= 0.5
