Answer: 1. -8, 2. 44, 3. 14, 4. 251, 5. -113, 6. -108, 7. -9
Step-by-step explanation: To add integers having the same sign, keep the same sign and add the absolute value of each number. To add integers with different signs, keep the sign of the number with the largest absolute value and subtract the smallest absolute value from the largest. Subtract an integer by adding its opposite.
Plug it in.
A being the coefficient of the first term, B the coefficient of the second, and C the coefficient of the third. . .
e.g.: 4x^2 + 7x - 8
a = 4, b = 7, c = -8
128,147.............................................
Answer:
distance between the base of the ladder from the bottom of the building = 5.18ft
Height of the building = 19.32ft
Step-by-step explanation:
The distance between the base of the ladder from the bottom of the building and the height of the building is given by
d = Lcosx
h = Lsinx
Where L is the length of the ladder, d is the distance between the base of the ladder and the bottom of the building, h is the height of the building and x is the angle between the ladder and the ground.
Given; x= 75° L = 20ft
d = 20cos75 = 5.18ft
h = 20sin75 = 19.32ft