The law of cosine is a squared + b squared -2abcosc. find he value of 2abcosc

side a is 2. side b is 4. side c is 5

a.37
b.20
c.40
d.-40

let y equal to

the total fare and x is the mile of taxi ride. so the equation is

y = 0.55x + 1.75

since susie has

$10 to spend for a taxi cab, so he can have

10 = 0.55x +

1.75

x = 15 miles of

taxi ride

so the system of

inequality is

10 < 0.55x +

1.75

x > 2

b

step-by-step explanation:

multiply terms on numerator/ denominator by (x - 1)

= ← distribute numerator/ denominator

= ← simplify

=

= → b

i think its 7.6

if so your welcome