Answer:
5050
Step-by-step explanation:
∑_{n=1 to 50} (4n-1)
a1=4×1-1=3
a2=4×2-1=7
a3=4×3-1=11
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a50=4×50-1=199
n=50
Sn=n/2(a1+an)
S50=50/2(3+199)=50/2×202=50×101=5050
Square Perimeter = 4(4x-1)
Rectangle Perimeter = 2(2x+1) + 2(x+2)
Square Perimeter = Rectangle Perimeter
4(4x-1) = 2(2x+1) + 2(x+2)
16x - 4 = 4x + 2 + 2x + 4
16x - 4 = 6x + 6
-6x +4 -6x +4
10x = 10
x = 1
Step-by-step explanation:
Go up that much and create a shape
Answer:
A.
<em>Brainliest, please!</em>
Step-by-step explanation:
In order to prove two triangles similar by AA, two angles in one triangle must be congruent to the opposite angles in the other. A is the only option that works as B and C are sides, which aren't relevant, and D, while an angle, doesn't make sense.
