Answer:
16c^2+56c+49
Step-by-step explanation:
(4c+7)^2 means (4c+7)(4c+7)
Use foil to multiply: 4c(4c)+4c(7)+7(4c)+7(7)
Simplifying : 16c^2+28c+28c+49
16c^2+56c+49
Answer:
y = 0
Step-by-step explanation:
Any point on the x- axis is (x, 0 ), that is the y- coordinate of all points is zero.
For this reason the equation of the x- axis is y = 0
Answer:
7.5
Step-by-step explanation:
Answer:
see explanation
Step-by-step explanation:
A drop in temperature is indicated by - ( negative symbol )
A drop of 2° followed by a drop of 3° is
- 2 + (- 3) = - 2 - 3 = - 5°
the sign of the sum is - ( negative add a negative is negative )
the total change in temperature is - 5°
the sum of 2 positive integers is positive , that is
+ 2 + (+ 3) = + 2 + 3 = = + 5