Estimate the speed of recession of a galaxy that is 10 billion light-years away if $H = 20 \frac { \mathrm { km } / \mathrm { s } } { \mathrm { Mly } }$ ? $\left( c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right)$
A) $0.5 \mathrm { c }$
B) $0.3 \mathrm { c }$
C) $0.7 \mathrm { c }$
D) $0.1 \mathrm { c }$

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The Answer of Estimate the speed of recession of a galaxy that is 10 billion light-years away if $H = 20 \frac { \mathrm { km } / \mathrm { s } } { \mathrm { Mly } }$ ? $\left( c = 3.00 \times 10 ^ { 8 } \mathrm {~m} / \mathrm { s } \right)$
A) $0.5 \mathrm { c }$
B) $0.3 \mathrm { c }$
C) $0.7 \mathrm { c }$
D) $0.1 \mathrm { c }$

Estimate the Speed of Recession of a Galaxy That Is H=20km/sMlyH = 20 \frac { \mathrm { km } / \mathrm { s } } { \mathrm { Mly } }H=20Mlykm/s​

Estimate the Speed of Recession of a Galaxy That Is $H = 20 \frac { \mathrm { km } / \mathrm { s } } { \mathrm { Mly } }$