Will the following matching operations succeed or fail? If they succeed, what are the resulting instantiations of variables? a. point(A, B)=point(1,2) b. point(A, B)=point(X, Y,Z) c. plus(2,2)=4 d. +(2,D)=+(E,2) e. triangle(point(-1,0),P2,P3)=triangl e(P1,point(1,0),point(0,Y))

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step-by-step explanation:

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15

answer: 75°

step-by-step explanation:

∠esk is the supplement of ∠edk, so is 100°. ∠esd = 1/2·arc ed, so is 25°.

since ∠esk = ∠esd + ∠dsk

you have 100° = 25° + ∠dsk . .

fill in known values 75° = ∠dsk . . . . .

subtract 25°

step-by-step explanation: