Answer:
d=-8
Step-by-step explanation:
-8 × -4=+32 ....always remember a positive number and negative number equals a negative number and negative number times a negative number is a positive number
Answer:
d = 80 ft
Step-by-step explanation:
Start with angle BCA, tan(BCA) = 30/15 so BCA = 63.43 degrees.
BCA = ECD since they are opposite angles.
tan ECD = d/40
40 tan(63.4degrees) = d
d = 80 ft
Alternatively, you can use similar triangles since the angles are the same, BCA = ECD, CED = CAB, and CBA = EDC. In that case use proportions to get 30/15 = d/40 so 2 = d/40 and d = 80.
-6 = 5(7) + b
-6 = 35 + b
-41 = b
y = 5x - 41 is the point slope form.
