Answer:
813 = 800 + 10 + 3 = (8 ) + ( 1
) + ( 3
)
Step-by-step explanation:
i) 813 = 800 + 10 + 3 = (8 ) + ( 1
) + ( 3
)
How many roots, real or complex, does the polynomial 7 + 5x4 – 3x2 have in all?
2 answers:
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Answer:
384 cm²
Step-by-step explanation:
Since it is a square pyramid, the total surface area of the pyramid is the area of its square base plus the area of its 4 triangular faces.
Area of a triangular face
= ½ ×12 ×10
= 60 cm²
Base area of pyramid
= 12 ×12
= 144 cm²
∴ Surface area of pyramid
= 4(60) +144
= 240 +144
= 384 cm²