The formula for two secants is:
(A+B)*B = (C+D)*D
In the picture :
A = 5
B = 3
C = X
D = 4
(5 +3) * 3 = (X +4)*4
Use distributive property:
24 = 4x + 16
Subtract 16 from both sides:
4x = 8
Divide both sides by 4:
X = 8/4
X = 2
Answer:
C, D and E
Step-by-step explanation:
The denominator of f(x) cannot be zero as this would make f(x) undefined.
Equating the denominator to zero and solving gives the values that x cannot be and if the numerator is non zero for these values then they are vertical asymptotes.
solve 3x(x - 1)(x + 5) = 0
Equate each factor to zero and solve for x
3x = 0 ⇒ x = 0
x - 1 = 0 ⇒ x = 1
x + 5 = 0 ⇒ x = - 5
Vertical asymptotes at x = -5, x = 1 and x = 0
Since the polys are similar, the following equation of ratios is true:
7/8 = x/3. Cross multiplying produces 21=8x, and so x = 21/8 (answer)
Answer:
13.0 inches
Step-by-step explanation:
