Answer:
75%
Step-by-step explanation:
The simple way would be to just divide 45 by 60 (45/60) = .75
then to turn into a percentage you multiply by 100 (.75 times 100) =75
Final answer 75%
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:
T = 0.34r³
Step-by-step explanation:
Given that T is directly proportional to r³ then the equation relating them is
T = kr³ ← k is the constant of variation
To find k use the condition T = 21.76 when r = 4 , then
21.76 = k × 4³ = 64k ( divide both sides by 64 )
0.34 = k
T= 0.34r³ ← equation of variation
Answer:
The answer is s=-1 or s=-12
Step-by-step explanation:
First Step: Factor left side of equation.
(s+1)(s+12)=0
Second Step: Set factors equal to 0.
s+1=0 or s+12=0
So, the answer is either -1 or -12
The perimeter is 2.5+ 2.5+2+3.5= 10.5 ft
The area is equal 6. I used the equation A= a=b/2*h
Hope this helped! Let me know if I can be of more assistance. <span />
