Answer:
Step-by-step explanation:
PLEASE ANSWER ASAP, 25 points if you answer and will get brainliest if you show all work. <br /><br />If you drive a
t x miles per hour and apply your breaks, your stopping distance in feet is approximately <br />
<br />a)By how much will your stopping distance increase if you increase your speed from 20 mi/h to 30 mi/h?<br />b)By how much will your stopping distance increase if you increase your speed from 50 mi/h to 60 mi/h? <br />c)An important driving guideline is that you leave one car length between your car and the car in front of you for every 10 mi/h of speed. Thus, you should leave three car lengths if you are driving at 30 mi/h and 5 car lengths if you are driving at 50 mi/h. Is this guideline consistent with the model f(x)?
1 answer:
You might be interested in
Answer:
<h3>There is a constant of variation in the equation and it is 750. This means that the amount olivia earns increases by $750 every week.</h3>Step-by-step explanation:
Given the equation y = 750x which represents the number of dollars y Olivia earns in x weeks, from the equation, it can be inferred that the number of dollars olivia earns is DIRECTLY PROPORTIONAL to the number of weeks. This relationship is therefore a direct variation.
In direct variation, increase in a variable will lead to corresponding increase in the other variable and vice versa by a factor known as the constant of variation.
For example if y is directly proportional to x, it is written mathematically as shown;
where k is the constant of proportionality.
comparing the general expression above with the equation in question,
y = 750x
k = 750
Therefore we can conclude that there is a constant of variation in the equation and it is 750. This means that the amount olivia earns increases by $750 every week.
Answer:
OPTION B: 80
SEE THE IMAGE FOR SOLUTION
Answer:
15cm
Step-by-step explanation:
Let x be the arc circumference.
The circumference of a circle usually subtends to 360°, that is, one complete revolution is 360°.
#Given the arc angle as 45° and the circumference as 120cm, the arc circumference can be obtained as:
#Apply proportions to find x:
Hence, the arc circumference is 15cm