Step-by-step explanation:
First step:
Distance = 300km
Speed = 60km/hr
We know,
Using Speed = Distance ÷ Time
Time = Distance ÷ Speed
we have Total Time = 300÷60
Total Time = 5hr
Again,
Distance = 200km. (Time = 5hr,
Speed =? Distance = 200)
Speed = Distance÷ Time
= 200÷5
= 40km/hr
The inscribed triangle is a right triangle. The diameter of the circle served as the hypotenuse of the triangle.
Angle C is 90°
Angle D = 36°/2 = 18°
<span>The measure of ∡DBC?
</span>
180° - 90° - 18° = 72°
Remember that interior angles of a triangle sum up to 180°.
Answer:
The first one is the answer.
Step-by-step explanation:
It's an arithmetic sequence. It has a common difference.
d = an - a_n-1
an = -12x + 12
a_n-1 = - 7x + 8
d = -12x + 12 - (-7x + 8)
d = -12x + 12 + 7x - 8
d = -5x + 4
Try it. Let's try for the third term
-12x + 12 - 5x + 4
- 17x + 15 which is exactly what the third term is.
Answer:
Common Difference(d) is

Step-by-step explanation:
Given sequence is :

If a sequence has a constant common difference throughout the sequence, then the sequence is called Arithmetic Progression.
Considering a sequence:


where 'd' is the common difference of the A.P.
Similarly, finding the common difference of the given sequence.



Common Difference(d) is
