Arithmetic sequence has a common difference between the terms.
for 1,4,7,10,...
4-1 = 3
7-4 = 3
10-7 = 3
so we do see a common difference between the terms.
Hence, True
Answer:
60 i think
Step-by-step explanation:
Hope this helped :)
Given that formula
((4-(-2))^2- (5-5))^1/2
((4+2)^2 -(0))^1/2
((6)^2 -0)^1/2
(36)^1/2
The answer is 6
(Note the 1/2 is also a substitute for the square root sign)
Answer:

∠
°
Step-by-step explanation:



- The cosine of an angle is equal to the side adjacent to the angle over the hypotenuse, the longest side.

- We need to find the hypotenuse of this triangle. This is relativly easy to do with a right triangle; we can just use the Pythagorean Theorem.
- Pythagorean Theorem:
where
,
, and
are the 3 different sides of a right triangle.

- Our hypotenuse is
. Now we can finish solving for ∠
.

∠
°
Answer:
It would be true
Step-by-step explanation:
3x-7=14, add 7 both sides, 3x=21, x=7, therefore it's true. Hope this helps!