Answer:


Step-by-step explanation:
∠1 and ∠2 are vertical angles.
∠1 = ∠2
<u>Part A:</u>
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Create an equation and solve for x.
20x + 21 = 30x - 29
Add 29 and -20x on both sides.
20x + 21 + 29 - 20x = 30x - 29 + 29 - 20x
Simplify the equation.
50 = 10x
Divide both sides by 10.
= 
Simplify the equation.
5 = x
Switch sides.
x = 5
<u>Part B:</u>
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Let x = 5
20(5) + 21
Distribute.
100 + 21
Add.
= 121
Since both angles are vertical angles, they are equal.
∠1 = 121°
∠2 = 121°
Answer:
Area of rectangles: l*b [LENGHT×BREADTH]
Therefore,
3/4 × 2/3 = Area
We do it as, 3*2/4*3
⇒ 6/12 = area
After simplification, we will get
1/2 = area of rectangular picture
Answer:
A = π x 2.5 x 2.5
Step-by-step explanation:
Answer:
D
Step-by-step explanation:
To find the average, add up all of the values and then divide by the number of values.
So first, add (-5) + (-4) + (-7) + (-2) + (2) + (5)
You get -11. Then, divide -11 by the number of values (6)
-11/6 is about -1.83, which rounds to -2