Answer:
see explanation
Step-by-step explanation:
the n th term of an arithmetic sequence is
= 
+ (n - 1)d
given = 3 and 
= 10, then
= 3 + d = 10 ⇒ d = 10 - 3 = 7
= 3 + 7(n - 1) = 3 + 7n - 7 = 7n - 4
the sum to n terms of an arithmetic sequence is
= 
[2 + (n - 1)d ]
= [(2 × 3) + 7(n - 1) ]
= (6 + 7n - 7 )
= (7n - 1)
= 
n² - 
n
Answer:
37.7 ft²
Step-by-step explanation:
2×3.14×r=30.77
<em>Divide both sides by 2</em>
3.14×r=15.385
<em>Divide both sides by 3.14</em>
r≈4.9
3.14×r²
3.14×4.9²=
24.01×3.14≈
75.4
75.4÷2=
37.7
Answer:
C
Step-by-step explanation:
NEGATIVE TIMES POSITIVE WILL GIVE A NEGATIVE PRODUCT
Answer:
69˚
Step-by-step explanation:
Subtract 360 with 429
which is 69˚
Answer is 69˚
Hope this helps!
