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The missing value is 6.
Use the slope formula and equal it to -3. Solve for x.
Use the slope formula and equal it to -3. Solve for x.
ANSWER
EXPLANATION
The given triangle has a right angle.
The side opposite to the 45° angle is 7 units.
To find angle x, we use the tangent ratio.
Recall the mnemonics TOA, which means,
To find y, we use the sine ratio, which means