What are the solutions to the equation 20=100-4.9t^2 ?

The solutions to the equation 20=100-4.9t^2 are t=(20sqrt(2))/7 ,t=-(20sqrt(2))/7

Find the zeros of 20=100-4.9t^2

The zeros of 20=100-4.9t^2 are t=(20sqrt(2))/7 ,t=-(20sqrt(2))/7

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular >

20 = 100 - 4.9 t^{2}

t = \frac{20 2}{7}, t = - \frac{20 2}{7}

Decimal Notation

t = 4.04061 \dots, t = - 4.04061 \dots

Solution steps

20 = 100 - 4.9 t^{2}

Switch sides

100 - 4.9 t^{2} = 20

Move

100

to the right side

- 4.9 t^{2} = - 80

Multiply both sides by

10

- 49 t^{2} = - 800

Divide both sides by

- 49

t^{2} = \frac{800}{49}

For

x^{2} = f (a)

the solutions are

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

t = \frac{800}{49}, t = - \frac{800}{49}

\frac{800}{49} = \frac{20 2}{7}

- \frac{800}{49} = - \frac{20 2}{7}

t = \frac{20 2}{7}, t = - \frac{20 2}{7}

d (4 d + 5) - 8 = 0

9 x = - 4 x^{2} - 5

5 x^{2} + 25 x + 5 = 0

x^{2} = 6 x - x^{2}

(n + 1)^{2} = 5 + 2 n

What are the solutions to the equation 20=100-4.9t^2 ?
The solutions to the equation 20=100-4.9t^2 are t=(20sqrt(2))/7 ,t=-(20sqrt(2))/7
Find the zeros of 20=100-4.9t^2
The zeros of 20=100-4.9t^2 are t=(20sqrt(2))/7 ,t=-(20sqrt(2))/7