6x + 15
anything 2 ask please pm me
Answer: The last line is a mistake
Step-by-step explanation: because you are not supposed to combine something that has a term and something that doesn't. So it should just stay has 40g+24
Answer:
a^2 - 25
Step-by-step explanation:
5(a-5) turns into 5a - 25
a(a-5) turns into a^2 - 5a
added together, it's a^2 - 25
Answer:
To determine to measure of the unknown angle, be sure to use the total sum of 180°. If two angles are given, add them together and then subtract from 180°. If two angles are the same and unknown, subtract the known angle from 180° and then divide by 2.
Answer:
The first derivative of 
(r(t)=5*t^{-2}) with respect to t is 
(r'(t) = -10*t^{-3}).
Step-by-step explanation:
Let be 
, which can be rewritten as . The rule of differentiation for a potential function multiplied by a constant is:
, 
Then,
(r'(t) = -10*t^{-3})
The first derivative of (r(t)=5*t^{-2}) with respect to t is (r'(t) = -10*t^{-3}).
