Use the given information to find the exact value of the expression.
-$\sin \alpha = \frac { 20 } { 29 } , \alpha$ lies in quadrant $\mathrm { I }$, and $\cos \beta = \frac { 4 } { 5 } , \beta$ lies in quadrant I $\quad$ Find $\cos ( \alpha + \beta )$
A) $\frac { 24 } { 145 }$
B) $\frac { 144 } { 145 }$
C) $\frac { 17 } { 145 }$
D) $\frac { 143 } { 145 }$

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The Answer of Use the given information to find the exact value of the expression.
-$\sin \alpha = \frac { 20 } { 29 } , \alpha$ lies in quadrant $\mathrm { I }$, and $\cos \beta = \frac { 4 } { 5 } , \beta$ lies in quadrant I $\quad$ Find $\cos ( \alpha + \beta )$
A) $\frac { 24 } { 145 }$
B) $\frac { 144 } { 145 }$
C) $\frac { 17 } { 145 }$
D) $\frac { 143 } { 145 }$

Use the Given Information to Find the Exact Value of the Expression