Answer:
4.80 units (3 s.f.)
Step-by-step explanation:

Hence, length of AB
= √(11+1)^2 - (8+3)^2
= √ 12^2 -11^2
= √ 23
= 4.80 units (3 s.f.)
Answer:
Step-by-step explanation:
y = 9x + 8
y = 7.5x + 16
1.5x = 8
x = 5.3 hours
Answer:4
Step-by-step explanation:
Answer:
The standard form of quadratic equation
, then the values of x which are the solutions of the equation are given by:
.
Given the equation: 
Here, a=1 , b= -7 and c = -6.
then, the solution of the given equation given by:
Substitute the values of a, b and c in above we get;
or

then,
the solutions of the given equation are;
,
.