Answer:
15/17
Step-by-step explanation:
You can use what is called the Pythagorean identity:
sin(θ)² + cos(θ)² = 1
(-8/17)² + cos(θ)² = 1
cos(θ)² = 1 - 64/289 = 225/289
cos(θ) = √(225/289)
cos(θ) = 15/17 . . . . . . . cosine is positive in the 4th quadrant
To answer this case, you need to convert the blueprint measurement into the actual measurement by multiplying it with the scale. In this case, the scale is 8ft/1 inch. Then the calculation would be:
Rectangle actual length = rectangle blue print length * blue print scale
Rectangle actual length = 25 inch * 8ft/inch= 200ft
Rectangle actual width = rectangle blue print width* blue print scale
Rectangle actual width = 16 inch * 8ft/inch= 128ft
Rectangle actual area= Rectangle actual length * Rectangle actual width = 200ft * 128 ft= 25600ft square
Answer:
x is 9
Step-by-step explanation:
since they are vertical angles, they are congruent. We make an equation putting each one behind the equal sign (7x+3=10x-24) and we solve.
1/15 is how much further it is