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Brain Booster
11.1K posts

Brain Booster
@BrainBoosterX
Mathematics • Logical Reasoning • Science
INDIA 参加日 Ocak 2018
5.4K フォロー中5.5K フォロワー


@BrainBoosterX @MathGuyTFL Wow
Another approach to this question I didn't think of!
English

@BrainBoosterX => H = [(9^2)(9 - 1)] ÷ 8
=> H = (9^2)8 ÷ 8
=> H = 9^2
=> H = 81
Français

@IQTestBrain 3 ^ M = 1
3 ^ M = 3⁰
M = 0
3 ^ N = 9
3 ^ N = 3²
N = 2
3 ^ ( M + N )
= 3 ^ ( 0 + 2 )
= 3² = 9 ✅

HT

@DsgJigsaw @MathGuyTFL The given equation is a quadratic equation, it will be solved in quadratic form only and not in linear form.
English

@BrainBoosterX @MathGuyTFL You were supposed to just factor out r in the numerator. Divide the factored out r with the one in the denominator. You are now left with r + 1 =6...
English

@IQTestBrain 4 / 6 k = 40 / 12
4 × 12 = 40 × 6 k
6 k = 4 ×12 / 40 = 12 / 10
k = 12 / 6 × 10 = 2/ 10
K = 0.2 ✅
Português

@MathGuyTFL Let,
Speed = x m/s
tan60° = 1800 / 30x
√ 3 × 30x= 1800
x = 1800 / ( 30√3)
x = 60/√3
x = 20√3 m/s ( aeroplane speed) ✅

English

@BrainBoosterX ■ 2ab = 12
=> ab = 12 ÷ 2 = 6
=> (ab)^2 = 6^2
=> (a^2)(b^2) = 36
=> 9(b^2) = 36
=> b^2 = 36 ÷ 9
=> b^2 = 4
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