Answer:
The factors of given expression are 10+10√2 and 10-10√2.
Step-by-step explanation:
We have given a quadratic expression.
s²-20s-100
We have to find factors of given expression.
We use quadratic formula to find factors.
x = (-b±√b²-4ac) / 2a
From given expression, a = 1 , b = -20 and c = -100
Putting values in above formula, we have
x = (-(-20)±√(-20)²-4(1)(-100) ) / 2(1)
x = (20±√400+400 ) / 2
x = (20±√800) / 2
x = (20± √400×2) / 2
x = (20±20√2) / 2
x = 10±10√2
Hence, the factors of given expression are 10+10√2 and 10-10√2.
Answer:
the third one
Step-by-step explanation:
9 to the power of 4 is 9 multiplied by it's self 4 times
Answer:
total cost = 351.33
Step-by-step explanation:
The tax is found by multiply the cost times the tax rate
tax = 334.60 * .05
tax =16.73
Add the tax to the cost of the item to get the total cost
total cost = 16.73 + 334.60
total cost = 351.33
Answer:
2√5
Step-by-step explanation:
The numbers divisible by 3 are multiples of 3.