What is the measure of arc ea? a. 21 b. 36 c. 30 d. 51

The correct option is C. 30°

Step-by-step explanation:

Construction : Join OB and OA

Now, m∠ECB = 51°

Now, ∠ECB and ∠EOA are formed on the same base

⇒ m∠EOA = 2 × m∠ECB

⇒ m∠EOA = 2 × 51°

⇒ m∠EOA = 102°

Now, Angle in the arc = Angle formed by the arc at the center

⇒ m∠AOB = measure of arc AB

⇒ m∠AOB = 72°

Now, m∠EOA = 102° - 72°

⇒ m∠EOA = 30°

Since, Angle in the arc = Angle formed by the arc at the center

⇒ Measure of arc EA = measure of the angle EOA

⇒ Measure of arc EA = 30°

Therefore, The correct option is C. 30°

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

don't know sorry bru

step-by-step explanation: