sdezz
sdezz
12-10-2021
Mathematics
contestada
Please answer and show Work
Respuesta :
mhanifa
mhanifa
14-10-2021
1.1
1.
7/20 = 0.35
2.
1.(27) = (127 - 1)/(100 - 1) = 126/99 = 14/11
3.
1 7/8 = 1.875
4.
x² = 81 ⇒ x = √81 = ± 9
5.
x³ = 343 ⇒ x = ∛343 = 7
6.
x² = 1/100 ⇒ x = √1/100 = ± 1/10 = ± 0.1
7.
x² = 200 ⇒ x = √200 = 10√2 ≈ 14.14 ft
1.2
8.
121/√121 = √121 = ± 11 ⇒ Integer, Rational number, Real number
9.
π/2 ⇒ irrational number, Real number
10.
'All integers are rational numbers' ⇒ TRUE as each can be shown as p/q
1.3
11.
√8 + 3 < √9 + 3 = 3 + 3 = 6
( < )
8 + √3
12.
√5 + 11 > √4 + 11 = 2 + 11 = 13
( > )
5 + √11 < 5 + √16 = 5 + 4 = 9
13.
√99 ≈ 9.94, π² ≈ 9.869 , 9.(8) ≈ 9.888
π² < 9.(8) < √99
14.
√1/25 = 1/5 = 0.2, 1/4 = 0.25. 0.(2) = 0.222
√1/25 < 0.(2) < 1/4
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