Answer:
Yep ur correct!
Step-by-step explanation:
The first one represents the numbers decreasing by a factor of 4 and the 2nd represents it of -10. C is not geometric because it is decreasing by 2 each time in which it would be arithmethic
Answer:
180°
Step-by-step explanation:
Answer:
x ≈ 7.2
Step-by-step explanation:
Based o. The secant-tangent theorem, we would have the following:
x² = (9 + 4) * 4
x² = 13 * 4
x² = 52
x = √52
x ≈ 7.2
Step-by-step explanation:
3( x +1) = 5 (x - 2) + 7
3x + 3 = 5x - 10 + 7
5x - 3x = 3 + 10 - 7
2x = 13 - 7
2x = 6
Therefore x = 3
Answer:
10.
Step-by-step explanation:
I am assuming that z is a whole number.
160z = x^2
z = x^2/ 160.
160 = 2*2*2*2*2*5
To make this a perfect square we multiply by 2 * 5
- this gives us 1600.
z = 1600/160 = 10.
