Answer:
-2
Step-by-step explanation:
go back 3 into the negatives
Answer/Step-by-step explanation:
Area of trapezium = ½*(AD + BC)*AB
Area = 42 cm²
AD = (x + 8) cm
BC = (x + 5) cm
AB = x cm
Plug in the values into the equation
42 = ½((x + 8) + (x + 5))*x
42 = ½((x + 8 + x + 5)*x
42 = ½(2x + 13)*x
Multiply both sides by 2
42*2 = (2x + 13)*x
84 = 2x² + 13x
2x² + 13x = 84
Subtract both sides by 84
2x² + 13x - 84 = 0
Answer:

Step-by-step explanation:
The magnitude of vector
is given by 
The magnitude of vector
is
.

The magnitude of vector
is
.

Therefore,

1. 672/12 = 56
2. 1440/16 = 90
3. 784/7 = 112
Answer:
1.Factor numerator and denominator
2.reduce the fraction
3.rewrite any remaining expressions in the numerator an denominator
Step-by-step explanation: