40 is the correct answer for this
Answer:
see explanation
Step-by-step explanation:
The nth term of an AP is
= a₁ + (n - 1)d
where a₁ is the first term and d the common difference
Given a₅ is double a₇ , then
a₁ + 4d = 2(a₁ + 6d) , that is
a₁ + 4d = 2a₁ + 12d ( subtract a₁ from both sides )
4d = a₁ + 12d ( subtract 12d from both sides )
- 8d = a₁
The sum of n terms of an AP is
=
[ 2a₁ + (n - 1)d ] , substitute values
=
( 2(- 8d) + 16d)
= 8.5(- 16d + 16d)
= 8.5 × 0
= 0
The answer is C. y = 1/3 |x|
Answer:
Volume = 72 cm³
Step-by-step explanation:
Volume = 
<u><em>Where a = 6, h = 6</em></u>
Volume = 
Volume = 36 * 2
Volume = 72 cm³
Answer:
Ok so number 7 is x>4
Number 6 is b
Number 5 is correct
Idk the other one
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