Help please due tonight
1 answer:
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Answer:
(1) 9
(2)
(3) 6()
Step-by-step explanation:
From the question,
(1) ()²
Applyin the law of multiplication of surds
()² = (
(2) ()× (
) =
Also applying the the law of multiplication of surd
()×(
) = (
) ( This is an irational answer)
∴ ()×(
) =
(3) 2()×3(
)
Also applying the law of multiplication of surds i.e Multiply surds to surds and whole number to whole number
= 2×3×()×(
)
6×() = 6(
Answer:
diameter =7 cm
Step-by-step explanation:
circum=2pi×r
2×pi×r=22
2×22÷7×r=22
r=22×7÷44
r=7÷2
r=3.5
d=2×r=2×3.5=7