Answer:
0.24
Step-by-step explanation:
4/5=0.8
0.8 to the power of 2 or 0.8*0.8= 0.64
2/5=0.4
0.64-0.4= 0.24
Answer:
d=r*t
Step-by-step explanation:
Answer:
<u>274 square units</u>
Step-by-step explanation:
<u>Surface Area of the prism</u>
- SA = 2(base x height) + 2(length x height) + 2(base x length)
- SA = 2(bh + lh + bl)
<u>Here</u> :
- b = 4
- h = 5
- l = 13
<u>Solving</u>
- SA = 2(4 x 5 + 13 x 5 + 4 x 13)
- SA = 2(20 + 65 + 52)
- SA = 2(137)
- SA = <u>274 square units</u>
Squares are cut from the corner, so we are left with only one variable.
The area of a rectangle, the bottom of the pan, is base*height.
Let's call the sides of the removed squares "x"
so 192 = (20-x)(24-x) foil to expand the binomials
192 = 480 - 44x - x squared Take 192 away from both sides
0 = 288 - 44x - x squared
0 = (36 - x)(8-x)
x = 36 and x = 8
Because 36 > 24 and 36 > 20, in this case, the squares cannot be
36cm x 36cm and therefore must be 8cm x 8cm.
Check:
(20-8)(24-8) = 192
