Answer is t_<10
-3t+9_>-21
-3t_>-30
t_<10
**when you divide or multiply both sides by a negative you have to flip the sign**
you can substitute numbers to make sure your answer is correct. For example if u substitute t=9 -27+9_>-21 -18_>-21 which is correct.(but you’ll see it’ll be incorrect if u put t=11)
Answer:
Hey
Step-by-step explanation:
Answer:
x = 3
This triangle ABC will be a right triangle as its sides obey the Pythagoras theorem.
Step-by-step explanation:
Let us assume that the triangle Δ ABC has vertices A(x,3), B(-3,-1) and C(-1,-4) and it is a right triangle.
We have to determine x.
Applying the Pythagoras Theorem,
AB² + BC² = AC² {If AC is the hypotenuse of the right triangle}
⇒ [(x + 3)² + 4²] + [(- 2)² + 3²} = (x + 1)² + 7²
⇒ x² + 6x + 38 = x² + 2x + 50
⇒ 4x = 12
⇒ x = 3 (Answer)
This triangle ABC will be a right triangle as its sides obey the Pythagoras theorem. (Answer)
Subtract the difference in age from the total:
87 - 15 = 72
Divide by 2:
72 / 2 = 36
Sydney is 36 years old
Devaughn is 15 years older: 36 +15 = 51 years old
51 + 36 = 87
Answer:
Step-by-step explanation:
The function is:
We can find a linear aproximation around a point with a Taylor's series:
The value of g(a) is
We have to calculate the firste derivative of g(x):
Then, we calculate g'(a)
The linear approximation is:
Calculate
We can use the linear approximation to calculate this, with x=-0.05.
Calculate
We can use the linear approximation to calculate this, with x=0.1.