Prove the sum of two rational numbers is rational where a, b, c, and d are integers and b and d cannot be zero.
steps reasons
1. a over b plus c over d given
2. ad over bd plus cb over bd
3. ad plus cb all over bd simplify
fill in the missing reason in the proof.
multiply to get a common denominator.
add to get a common denominator.
distribute d to all terms.
add d to all terms.

135 is your answer

step-by-step explanation:

try 180 times three then divide that number by 4 (sides) to get your answer. im glad to : )

the answer is a i belaeve atleast thats what my calculator just gfave me

step-by-step explanation:

change of stock price/initial stock price on friday * total stock value = change of stock value

0.89/73.73 *x = 42.72

x=3539.04 = total stock value at initial stock price on friday .

total stock value at initial stock price on friday/ initial stock price on friday = number of shares

3539.04/73.73 = 48 shares

they own 48 shares of this stock

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: