Answer:
BAD=100° (given)
ADC=105° (180-75)
DCB=50° (vertical angles)
CBA=105° (same as ADC)
Answer:
<em>B: Jupiter</em>
Step-by-step explanation:
hope this helps
First, write an equation system based on the problem
An equation for "the perimeter of a rectangle is 70 in" can be written as following
∴ 2l + 2w = 70 <em>(first equation)</em>
An equation for "the length is 11 in more than its width" can be written as following
∴ l = w + 11 <em>(second equation)</em>
Second, solve the equation by substitution method o find the dimension of the rectangle.
Substitute/plug l as (w+11) into the first equation
2l + 2w = 70
2(w + 11) + 2w = 70
2w + 22 + 2w = 70
4w + 22 = 70
4w = 70 - 22
4w = 48
w = 48/4
w = 12
The width of the rectangle is 12 in
Substitute w with 12 to the second equation
l = w + 11
l = 12 + 11
l = 23
The length of the rectangle is 23 in
Third, find the area of the rectangle
a = l × w
a = 23 × 12
a = 276
The area of the rectangle is 276 in²
Answer:
a
Step-by-step explanation:
2x +7= 19
2x= 19 -7 <em>(-7 on both sides)</em>
2x= 12 <em>(</em><em>simplify</em><em>)</em>
x= 12 ÷2
x= 6