Answer:
-0.7
Step-by-step explanation:
● -9 + 8.3
Notice that 8.3 = 8 + 0.3
● -9 + (8 + 0.3)
● -9 + 8 + 0.3
-9 + 8 is -1
● (-9 + 8) + 0.3
● -1 + 0.3
-1 is (-0.3 -0.7)
● -0.3 - 0.7 +0.3
● -0.7
A.
b and c.
add 5 to both sides:
subtract 3n from both sides:
Answer:
Step-by-step explanation:
let the speed of Landon=x
speed of Eduardo=x+9
5x+5(x+9)=135
divide by 5
x+x+9=135/5=27
2x+9=27
2x=27-9
2x=18
x=18/2=9
speed of Landon=9 mph
speed of Eduardo=9+9=18 mph
4.58 x 10^-5
hope I helped
The Surface area of the figure is 520 square centimeters
<h3 /><h3>How to calculate the surface area of a figure</h3>
The figure is made up of rectangular prisms
The formula for calculating the surface area of rectangular prism is expressed as:
SA = 2(lw + wh + lh)
l is the length
w is the width
h is the height
Surface area of the figure = 2(2(8) + 2(14) + 8(14)) + 2(6(8) + 6(4) + 8(4))
Surface area of the figure = 2(16+28+112) + 2(48 + 24+32)
Surface area of the figure = 312 + 208
Surface area of the figure = 520 square centimeters
Hence the Surface area of the figure is 520 square centimeters
Learn more on surface area of composite figure here: brainly.com/question/26736468
