Answer:
The measure of angle A is 108°
What is a angle?
An angle is formed when two straight lines or rays meet at a common endpoint.
What is a supplementary angle?
Supplementary angles are those angles that sum up to 180 degrees.
Given that angle A and angle B are supplementary angle
∠A=(7x+10)°
∠B=(7x−26)°
(7x+10)° + (7x−26)° =180°
14x - 16° =180°
14x =196°
x= 14°
∠A=(7x+10)°
∠A=(7(14) +10)°
∠A= 108°
Thus the measure of angle A is 108°
Answer:
3w^2+7w
Step-by-step explanation:
Let width be w
Length, l is 3w+7
Area = l * w
(3w+7)w = 3w^2+7w
a) Rainbow phone: c=100+6x
Cellular phone: c=80+10x
b) make the equations equal to each other:
100+6x=80+10x
20=4x
5=x
5 GB over
c)if x=6
Rainbow: 100+(6 x 6)= $136
Cellular: 80+(10 x 6)=$140
Therefore rainbow will save them the most money