Determine the surface area of the rectangular prism below.
Length = 10cm
Width = 5cm
Height = 2cm
a) 80 cm²
b) 100 cm²
c) 160 cm²
d) 17 cm²
Answer:
c) 160 cm²
Step-by-step explanation:
The formula for the Surface Area of a rectangular prism =
A=2(wl + hl + hw)
Length = 10cm
Width = 5cm
Height = 2cm
Hence:
Area =2× (5 × 10 + 2 × 10 + 2 × 5) cm²
= 2 × ( 50 + 20 + 10) cm²
= 2 × (80) cm²
= 160 cm²
the second one I believe but im not the greatest at math so dont trust me
A volume:
V = 3.00 in³
1 in³ = 16.39 cm³
V = 3.00 · 16.39 = 49.17 cm³
0.242 g/cm³ · 49.17 g = 11.899 g² ≈ 11.90 g
Answer: It would weigh 11.90 grams.
0.7n + 0.8n = 2.1
1.5n = 2.1 (add like terms(0.7+0.8=1.5))
n=2.1/1.5 (get en on its own)
n=1.40
8 hundred thousands 0 ten thousands and 0 thousands
