40×4×4=640
b=20 h=4
using formula:
1/2×base×height
1/2×20×4=40
its says scale by factor 4:
b=80 h=16
using formula:
1/2×base×height
1/2×80×16=640
answer------>>>>640cm^2
" the difference " means subtract
the difference between 5 and twice a number x is 1
5 - 2x = 1 <== ur equation
-2x = 1 - 5
-2x = - 4
x = -4/-2
x = 2 <== ur solution
Arc length = radius* angle
Solving for angle
---> angle = ArcLength/radius
Answer:
m = 1/2
Step-by-step explanation:
slope = m
m= y1-y2/x1-x2
y1= -2
y2= 1
-2-1 = -3
x1= -3
x2=-3
-3-3 = -6
-3/-6 = 1/2
Unit price for smaller bottle = 2.19 / 13.5 = $0.16 per ounce
For larger bottle its 5.37 / 29.2 = $0.18 per ounce
( to the nearest cent).
The better buy is the 13.5 ounce bottle
