Q1 -
Find the geometric means in the following sequence.

-9, ___, ___, _, _, -69,984
A. -324, -1,944, -11,644, -69,999
B. -54, -324, -1,944, -11,664
C. 54, 324, 1,944, 11664
D. -1,080, -1,620, -2,160, -2,700

Q2-
Find Sn for the given geometric series. Round to the nearest hundreth
a1= 0.1 , a5= 814.5, r=9.5
Use the formula: Sn= Sn = a(1 - rn) / (1 - r)
A. 85.5
B. 910.32
C. 736.94
D. 51,380.23

Q3-
Find a1 for the given geometric series. Round to nearest hundredth.
Sn= 47,615 , r= 3, n=5
Use the formula : Sn=a1-a1r^n/1-r
A. 393.51
B. 1,535.97
C. 780.6
D. 9,517

Q4 -
Find the sum of this geometric series. You can use either formula (picture attached)
A. 58,253.333
B. 233,016
C. 14,563.33
D. -58,253.333

Q1.C.-54,-324,-1,944,-11,664

Q2.A.

Q3.C.

Q4.B.

Step-by-step explanation:

I Am sorry yes

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc

step-by-step explanation: