Answer:
x = 28
Step-by-step explanation:
Okay COB is vertical to AOB, so we know they equal the same. Right the equation this way.
3x + x + x + 12 = 152 (collect like terms)
5x + 12 = 152 (subtract 12 on each side)
5x = 140 (divide by 5 on each side)
x = 28
(PLUG IN)
3(28) + (28) + (28) + 12 = 152
84 + 28 + 28 + 12 = 152
152 = 152
Answer:
Step-by-step explanation:
diameter = 20
radius = 10 units
Length of Chord = 16 units
The perpendicular from the center to a chord, bisect the chord.
So, base = 16/2 = 8units
Use Pythagorean theorem.
x² + 8² = 10²
x² + 64 = 100
x² = 100 -64
x² = 36
x = √36 = √6*6
x = 6 units
Answer:
(i) [1,2]
(ii) [1,1,1]
(iii)
(iv)
(b)
Step-by-step explanation:
First. Let's find the displacement for every given time:
t=1s
t=2s
t=1.1s
t=1.01s
t=1.001s
Now, the average velocity can be found as:
Where:
Hence:
(i) [1,2]
(ii) [1,1,1]
(iii)
(iv)
(b) In order to estimate the instantaneous velocity of the particle for t=1, we need to find its derivative: