Answer:
a major arc
Step-by-step explanation:
A circle is the locus of point in which has a given distance from a fixed point (center of the circle).
B is the center of the circle C B, D B, and E B are radii forming 3 congruent angle. Since the sum of angles in a circle is 360°, the 3 line segments form 3 congruent angles of 120° each (360/3).
Therefore the angle measure of Arc C D E = Arc CD + Arc DE = 120° + 120° = 240°
A major arc is an arc greater than a semicircle (> 180°). This means that Arc C D E is a major arc
Answer:
D
The y-intercepts of the two functions are opposites.
Step-by-step explanation:
f(x) = 3x-4 which has a slope of 3 and a y intercept of -4
g(x)
m = (5-4)/(3-0) = 1/3
g(x) = 1/3 x +4
g(x) has a slope of 1/3 and a y intercept of 4
Answer:
![v_1 =3.8891 m/s, v_2 = 7.7782 m/s](https://tex.z-dn.net/?f=v_1%20%3D3.8891%20m%2Fs%2C%20v_2%20%3D%207.7782%20m%2Fs)
Step-by-step explanation:
Consider car 1 with mass
and original speed
and car 2 with mass
and original speed
. We can consider both cars as punctual masses. In this case, recall that the kinetic energy of a particle of mass
and speed
is given by the expression
. Then, since car 1 has twice the mass of a second car, but only half as much kinetic energy based on the description, we have the following equations.
,
.
Replacing the equation
in the second one, leads to
, which implies
Since
and assuming that both speeds are positive, then
.
Given that, if both cars increase their speed by 5.5 m/s then they have the same kinetic energy, we have that
. Using the previous result, and expressing everything in terms of
and
we have that
(where
cancells out).
Then, we have the following equation
, which by algebraic calculations leads to
. Since we assumed
, we have that
.Then, ![v_2 = 7.7782](https://tex.z-dn.net/?f=v_2%20%3D%207.7782%20)
Answer:
600 ft in one minute
i don't know if my answer is correct or not
Step-by-step explanation:
Object 1 280 ft/min => 85 m/min => 85/60 m/sec
sim.
Object 2320 ft/min => 98 m/min => 98/60 m/sec
when two bodies move in opp. direction there speeds are added
so
resultant speed is object 1 + object 2
the resultant comes out as 183/60 m/sec
time is given 1 minute
and we know Distance = time * speed
distance = 183/60 * 60 (183/60 is the speed and 60 is the time in sec as 1 min. = 60sec)
so the distance comes out as 183 m
convert it into ft
1m = 3.2 ft
so 600 ft in one minute
The one that shows a parabola opening upward or downward.