Answer:
The length of the ramp must be at least 14.71 feet
Step-by-step explanation:
Given
<em>See attachment for complete figure</em>
Required
Length of the ramp (z)
To do this, we consider sin of angle A ().
So, we have:
This gives:
Make z the subject
<em>The length of the ramp must be at least 14.71 feet</em>
Answer:
(ii)
(iii)
Step-by-step explanation:
Please see the attached picture for full solution.
Answer:
4092
Step-by-step explanation:
The n th term of a geometric series is
= a
where a is the first term and r the common ratio
4 ← is the n th term
with a = 4 and r = 2
The sum to n terms of an arithmetic series is
=
, thus
=
= 4(1024 - 1) = 4 × 1023 = 4092