Geometry question..can anyone help?
1 answer:
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Step-by-step explanation:
Hey there!!!
Here,
Given, A line passes through point (2,-2) and is perpendicular to the y= 5x+2.
The equation of a straight line passing through point is,
Now, put all values.
It is the 1st equation.
Another equation is;
y = 5x +2........(2nd equation).
Now, Comparing it with y = mx + c, we get;
m2=5
As per the condition of perpendicular lines,
m1×m2= -1
m1 × 5 = -1
Therefore, m2= -1/5.
Keeping the value of m1 in 1st equation.
Simplify them.
Therefore the required equation is x+5y+8= 0.
<em><u>Hope it helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>
Answer:
Step-by-step explanation:
The complete exercise is: "Tomos is a skier he completed a ski race in 2 min 6 seconds the race was 525 m in length. Tomos assumes that his average speed is the same for each race. using this assumption, work out how long tomos should take to complete an 800 m race give your answer in minutes and seconds"
For this exercise you can use the following formula to find the average speed :
Where "d" is the distance and "t" is the time.
In this case, based on the information given in the exercise, you can identify that:
Since he completed a ski race in 2 min 6 seconds, and 1 minute has 60 seconds, you ge that this time in seconds is:
Substitute these values into the formula to find the average speed:
The formula for the time is:
Knowing that Tomos assumes that his average speed is the same for each race, for the 800 meters race you can identify that:
So, substituting values into the formula and evaluating, you get that the time it takes him to complete this race is:
Convert from seconds to minutes:
Converting 0.2 minutes to seconds, you get:
Therefore: