Ooooof imagine having to write an essay last minute
Looking at this, I think the easiest (personally) way to solve it would be using the Substitution method.
Meaning we have to rearrange ONE equation, to make ONE variable ( x or y) the subject.
(1) 2.5x + y = -2
(2) 3x +2y = 0
The first equation is the easiest to rearrange. Make Y the subject for (1).
Thus,
y = -2.5x - 2
Substitute this into equation (2).
∴ 3x + 2(-2.5x - 2) = 0
Expand and simplify:
3x - 5x - 4 = 0
∴ -2x - 4 = 0
Making x the subject:
-2x = 4
x = -2
From here, we need to substitute x=-2 into equation (1) or (2) to solve for the y-value. I would say the easiest way, would be to rearrange one, to make y the subject, which was what we did earlier.
Thus,
y = -2.5x - 2
y = ((-2.5(-2) -2)
y = 3
(X,Y) x = -2, y = 3
Answer: (-2,3)
I hope you followed through.
<span>We can use a simple kinematic equation to find the velocity of the ball.
v = v0 + at
v = 58.5 m/s + (-9.80 m/s^2) (5.97 s)
v = -0.006 m/s
The negative sign means that the ball is heading down toward the ground. The small magnitude of the velocity means that the ball has reached the maximum height and is starting to fall back down toward the ground.
The velocity of the ball is -0.006 m/s</span>
Fines for speeding in school zones may be enhanced. For example, many authorities double speeding fines in school zones.
So probably is C, fines are doubled.
The physiologic factors that affect motility of food in the stomach and small intestines is :
- The abnormalities in the muscle.
<h3>What
cause stomach motility?</h3>
Genes are known to often play a role in in some cases of gastric motility disorders and it is seen in Hirschsprung's disease, intestinal pseudo-obstruction, and others.
Note that Weak contractions of the small intestine are as a result of the to issues in the muscle and are known to be linked or associated with diseases e.g. scleroderma.
Note that connective tissue disorders can lead or cause damage to the intestine and as such, the physiologic factors that affect motility of food in the stomach and small intestines is the abnormalities in the muscle.
Learn more about stomach motility from
brainly.com/question/2738815
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