What is the weight of the cow?
Answer:
To find the product, we use FOIL method.
First terms
Outer terms
Inner terms
Last terms
Product = (7x * 8x) + (7x * 5) + (-4 * 8x) + (-4 * 5) =
Product = 56x2 + 35x - 32x - 20 =
Product = 56x2 + 3x - 20
Step-by-step explanation:
Answer:The answer is he has 3 quarters and 15 dimes
Step-by-step explanation:
quarter= $.25 and dime= $.1 so 3x.25= .75 and 15x.1= 1.5 and then add and you get $2.25
If Dave earns $150/week times 4 weeks = 600
3.8% commission on $4175.68 is $158.68
$600 + $158.68 = $758.68 for the month of February
Its like x² + 4x +20 = 0,
x = [-4 + √[(4²) - (4*1*20)]]/(2*1) = [-4 + √(16-80)]/2 = [-4 + √(-64)]/2 = [-4 + 8√(-1)]/2 = -2 + 4i,
x = [-4 - √[(4²) - (4*1*20)]]/(2*1) = [-4 - √(16-80)]/2 = [-4 - √(-64)]/2 = [-4 - 8√(-1)]/2 = -2 - 4i,
here i = √(-1), its a complex number.
so solution is a complex number,
x = -2 - 4i & -2 + 4i.
