Calculate the angles of a parallelogram if the sum of the two angles is 160 °

Step-by-step explanation:

in parallelogram sum of angles = 360°

2 angles' sum is given = 160 °

let other angles be x

so

160 ° +x+x = 360

160 +2x = 360

2x = 360 - 160

2x = 200

x = 100

the other two angles are of 100 ° each

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step-by-step explanation:

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2