What are the solutions to the equation 90=0.81t^2 ?

The solutions to the equation 90=0.81t^2 are t=(10sqrt(10))/3 ,t=-(10sqrt(10))/3

Find the zeros of 90=0.81t^2

The zeros of 90=0.81t^2 are t=(10sqrt(10))/3 ,t=-(10sqrt(10))/3

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90 = 0.81 t^{2}

t = \frac{10 10}{3}, t = - \frac{10 10}{3}

Decimal

t = 10.54092 \dots, t = - 10.54092 \dots

Solution steps

90 = 0.81 t^{2}

Switch sides

0.81 t^{2} = 90

Multiply both sides by

100

81 t^{2} = 9000

Divide both sides by

81

t^{2} = \frac{1000}{9}

For

x^{2} = f (a)

the solutions are

x = f (a), - f (a)

t = \frac{1000}{9}, t = - \frac{1000}{9}

\frac{1000}{9} = \frac{10 10}{3}

- \frac{1000}{9} = - \frac{10 10}{3}

t = \frac{10 10}{3}, t = - \frac{10 10}{3}

- 2 x^{2} + 11 x - 15 = 0

x = - x^{2} - 48 x + 64

2 + \frac{2}{20} Q - \frac{3}{20} Q^{2} = 0

7 = x^{2} + 4 x + 4

(x^{2} - 6 x + 9) = 0

What are the solutions to the equation 90=0.81t^2 ?
The solutions to the equation 90=0.81t^2 are t=(10sqrt(10))/3 ,t=-(10sqrt(10))/3
Find the zeros of 90=0.81t^2
The zeros of 90=0.81t^2 are t=(10sqrt(10))/3 ,t=-(10sqrt(10))/3