Answer:
Series A has an r value of 2/5 and series A has an r value of 3. The sum of the series A is 50/3
Step-by-step explanation:
A geometric sequence is in the form a, ar, ar², ar³, . . .
Where a is the first term and r is the common ratio = 
For series A: 10+4+8/5+16/25+32/125+⋯ The common ratio r is given as:
For series B: 1/5+3/5+9/5+27/5+81/5+⋯ The common ratio r is given as:
For series A a = 10, r = 2/5, which mean 0 < r < 1, the sum of the series is given as:
Answer: x = 8
BC = 13
AB = 13
AD = 10
Step-by-step explanation:
The figure shows that AB = BC so:
x+5 = 2x-3
2x-x = 5+3
x = 8
Hence we have:
BC = 2(8)-3 = 13
AB = 8+5 = 13
AD = 8+2 = 10
Answer:
50% of the scores are between 65 and 88
Step-by-step explanation:
taking the diagnostic too
Answer:
16
Step-by-step explanation:
64÷4=16
Answer:
Exterior Angle = 36 degrees
Step-by-step explanation:
<u><em>Each interior angle of a regular decagon measures 144 degrees.</em></u>
=> <u><em>We'll subtract 144 from 180 to get the measure of the exterior angle.</em></u>
=> Exterior Angle = 180-144
=> Exterior Angle = 36 degrees
