Answer:
common ratio (r) =T2÷T1=T3÷T2
5÷10=5/2÷5
r= 1/2
a=10
tn=a.r *(n-1)
tn=10×1/2 *(n-1)
t6=10×1/2 *(6-1)
t6=5/16
Answer:
x = 3
Step-by-step explanation:
Since the triangle is isosceles then the 2 legs are congruent, both x
Using Pythagoras' identity in the right triangle
x² + x² = 6²
2x² = 36 ( divide both sides by 2 )
x² = 18 ( take square root of both sides )
x = = = × = 3
David will earn $1,920 in six weeks
8 x 40 = 320 a week
320 x 6 = 1,920 in six weeks