What is the sum of the polynomials? (8x2-9y2-4x)+(x2-3y2–7x)
7x2 - 6y2 + 3x
9x2 - 6y2+3x
9x2 - 12y2 + 3x
9x2 - 12/2 - 11x
​

throw the computer

step-by-step explanation:

answer: the answer is ann

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

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: