Answer:
I think you just plug in the first equation to the or the second to the first, it’s actually does not matter. After that you just solve it. For example: we have two equations.
y=11-2x
y=x+2
We just plug in the first equation to the second one.
11-2x=x+2
-3x=9
x=-3. So this is the answer. Hope this helps.
Step-by-step explanation:
The smallest of the 3 interior angles of the triangle is 10 degrees. Note that the diagram is not to scale.
Thus, sin 10 degrees = opp / hyp = 200 m / x
0.1736 = (200 m) / x, or x = (200 m) / 0.1736
= 1152 m (rounded up from 1151.75 m).
<span>The tortoise crawls the whole 1000 m at 0.2 m/s, therefore, you must divide the distance by the rate of travel to find the time it took to complete the race. This gives us a time of 5,000 seconds to crawl the thousand meters. The hare runs the first 200 meters at 2 m/s, meaning that takes 100 seconds. The last 800 meters divided by the speed of 3 m/s gives us a time of 266 seconds. These two numbers must be added to the hare's rest time, converted from 1.3 hours into seconds by multiplying that number by 60 (for minutes in an hour) then 60 again (for seconds in a minute). 1.3 hours is equal to 4680 seconds. Therefore, the whole race took the hare 5,046 seconds, making it slightly slower than the hare, who finished in 5,000 seconds flat.</span>
Answer:
find from the Google
Step-by-step explanation:
find from the Google
Answer:
sec Ф = 13/12
Step-by-step explanation:
If tan Ф = 5 / 12, we can find the third side of this triangle (that is, the hypotenuse) by applying the Pythagorean Theorem:
hyp² = 5² + 12² = 169. Thus, the hyp is 13.
Thus, cos Ф = adj / hyp = 12/13.
The secant function is the reciprocal of the cosine function, so
sec Ф = 13/12.
