Answer: N = 5
Step-by-step explanation:
M = 3N + 4R
M = 43
R = 7
Replacing by the values
43 = 3N + 4*7
43 = 3N + 28
43-28 = 3N
3N = 15
N = 15/3
N = 5
Answer:
see explanation
Step-by-step explanation:
Given A is directly proportional to r² then the equation relating them is
A = kr² ← k is the constant of proportion
To find k use the condition when r = 5, A = 75 , then
75 = k × 5² = 25k ( divide both sides by 25 )
3 = k
A = 3r² ← equation of proportion
(a)
when r = 4, then
A = 3 × 4² = 3 × 16 = 48
(b)
when A = 147 , then
147 = 3r² ( divide both sides by 3 )
49 = r² ( take the square root of both sides )
r =
= 7
Answer:
The answer to your question is slope = 0; y = -2
Step-by-step explanation:
Data
A (-2, -2)
B (2, -2)
Process
1.- Calculate the slope
m = (-2 - (-2)) / (2 - (-2))
m = ( -2 + 2) / (2 + 2)
m = 0/4
m = 0
2.- The equation of the line is
y - y1 = m(x- x1)
y - (-2) = 0(x - (-2))
y + 2 = 0
y = -2