Answer: 3,130
Step-by-step explanation: 2,815 + 315 = 3,130
This is a geometric sequence with common ratio (r) = 2.
an = ar^(n - 1)
a4 = a(2)^(4 - 1) = a(2)^3 = 8a
8a = 80
a = 80/8 = 10
7th term (a7) = 10(2)^(7 - 1) = 10(2^6) = 10(64) = 640
Answer:
w + 2.3 > 18
Step-by-step explanation:
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The answer is 6
Explanation:
1 cm : 20 feet
y cm : 120 feet
(We will use cross multiplication)
20y = 120*1
20y/ 20 = 120/20. (left-side: the 20’s will be cancelled)
y= 120/20
y= 6
Answer:
A = 40 square yards; P = 33 yards.
Step-by-step explanation:
Perimeter of the triangle
= ( 8 + 15 + 10)
= 36 yards.
Area of the right angled triangle
= 1 /2 * 10 * 8
= 40 square yards.
Hope it will help :)
