Answer:
This is a geometry sequence (I.e each term is found by multiplying the same value to the previous term).
T1 = 4
T2 = -12 = T1 X (-3) = 4 X (-3)
T3 = 36 = T2 X (-3) = 4 X (-3)^2
T4 = 108 = T3 X (-3) = 4 X (-3)^3
The general (explicit) formula for the n-th term of this sequence is:
S(n) = 4 X (-3)^(n-1)
Answer:
mZWX = 214°
Step-by-step explanation:
In a circle C, XR and WZ are two diameters.
∠ XCW = 34° and ∠ YCZ = 86°
We have to find the measure of arc ZWX
Since ∠XCW + ∠XCY + ∠YCZ = 180° [ angles on a straight line ]
34° + ∠XCY + 86° = 180°
120° + ∠XCY = 180°
∠XCY = 180 - 120 = 60°
Now arc ZWX = 360° - (∠XCY + ∠ YCZ)
= 360° - (60° + 86°)
= 360° - 146°
= 214°
Therefore answer is arc ZWX = 214°
Step-by-step explanation:
Let the number be x.
ATQ,
Malachy halves the number and gets an answer of 67.3.

This the equation for the given statement.
It can also be written as :

Hence, this is the required solution.