Answer:
average is equal to sum of x1 and x2
x1=||/2 and x2=2||
so,
average=||/2 + 2|| the whole thing divide by2
||= 22/7
then,
22/7÷2=22/14
2×22/7=44/7
(22/7+44/7)/2
66/7÷2
66/14=33/7
therefore average is 33/7
Answer:
x = 14
Step-by-step explanation:
Using Pythagoras' identity in the right triangle
x² + x² = (14
)²
2x² = 392 ( divide both sides by 2 )
x² = 196 ( take the square root of both sides )
x = 
= 14
Thus the congruent legs are 14 cm
Answer:
I believe it would be A) 2 + m - 1 + - m
The required expression is 100 - 0.2w
Step-by-step explanation:
Given,
Amount of radioactive substance = 100 mg
The substance decreases by 20% each week.
To find the remaining amount of the in w weeks.
Now,
Each week 20% = 0.2 of the substance will be decreased.
So, in w weeks 0.2×w of the the substance will be decreased.
Hence,
The remaining substance = 100 - 0.2w
