Answer:
65
Step-by-step explanation:
90 degrees - 25 degrees = 65 degrees
1. 8a+a^2-10
2. v-6w
3. -2c^2+4c
4. z^3+8z^2+5z+7
Answer:
proportional because you can divide 16 and 36 by four and get 4/9
<span>x − y ≥ 3 ... > stands for above on a graph, and the line under it _ stands for shaded.</span>
= 1455
generate a few terms of the sequence using
= 3n + 2
= ( 3 × 1) + 2 = 5
= (3 × 2) + 2 = 8
= (3 × 3 ) + 2 = 11
= (3 × 4 ) + 2 = 14
= ( 3 × 5 ) + 2 = 17
the terms are 5, 8, 11, 14, 17
these are the terms of an arithmetic sequence
sum to n terms is calculated using
=
[ 2a + (n-1)d]
where a is the first term and d the common difference
d = 8 - 5 = 11 - 8 = 14 - 11 = 3 and
= 5
=
[( 2 × 5) + (29 × 3) ]
= 15( 10 + 87) = 15 × 97 = 1455