3 years ago

1. Find the Distance. Round to the nearest tenths. (-4, 6) and (3, -7)

Mathematics

1 answer:

Andrews [41]3 years ago

6 0

Answer:

Step-by-step explanation:

$(4, 6) = (x _1 , y_1) \\ (3, -7) = (x_2 \: y_2) \\ \\ d = \sqrt{(x_2 - x_1)^{2} + (y_2 - y_1)^{2} }$

Plug in the given values

$d = \sqrt{(3 - 4)^{2} + ( - 7 - 6)^{2} } \\ d = \sqrt{( - 1)^{2} + {( - 13)}^{2} } \\ d = \sqrt{1 + 169} \\ d = \sqrt{170} = 13.0$

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How am I supposed to find ‘t’ here?

Softa [21]

You can solve for (T)

$y = - 16t {}^{2} + 400 \\ add \: both \: side \: by \: - 16t {}^{2} \\ - 16t {}^{2} = - 400 \\ divide \: both \: side \: by16 \\ t {}^{2} = - 25 \\ t = \sqrt{25} \\ t = 5 \\ \: also \: it \: can \: be \: - 5 \\ + - 5 \\ \\$

Hope this help :)

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