Answer:
40 cm²
Step-by-step explanation:
A = 2(lw + lh + wh)
= 2(4×2 + 4×2 + 2×2)
= 2(8 + 8 + 4)
= 2×20
= 40 cm²
Answer:
40cm^6
Step-by-step explanation:
surface area of this box
=2(lw+lh+wb)
=2(2×4+4×2+2×2)cm^6
=2(8+8+4)cm^6
=2×20cm^6
=40cm^6
Answer:
B.
Step-by-step explanation:
Answer:
17
Step-by-step explanation:
Substitute the value of the variable and simplify.
Anything raised to the power of 0 is one.
16 + 1 = 17
Answer:
17
Step-by-step explanation:
The width of the rectangle is 4 inches.
The formula for the perimeter of a rectangle is, P = length + breadth + length + breadth.= 2(length+ breadth)
Given: perimeter= 22 inches.
Let the width be 'b'
length= b+3
Perimeter of rectangle= 2(l+b)
22 = 2(b+3+b)
11= 2b+3
11-3=2b
8=2b
b=4 inches
So, length= b+3= 7 inches
Hence, the width of rectangle is 4 inches.
Learn more perimeter of rectangle here:
#SPJ2
one thing that may help is the use of diagrams. See the attached photo.
To solve you need two equations.
2w + 2L = 22
L = w + 3
2w + 2(w + 3) = 22
2w + 2w + 6 = 22
4w + 6 = 22
4w = 16
w = 4
L = w + 3
L = 4 + 3
L = 7