Evaluate the function f(x) = 2x + 8, when x = -2.
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Answer:
36 miles.
Step-by-step explanation:
We have been given that Karina rode her bike up a mountain trail at an average of 4 mph. Then she rode it back down the trail at an average of 20 mph. The entire trip took 3 hours.
Substitute the given values:
The total distance is 72 miles, so the distance going up would be half of 72.
Therefore, Karina went 36 miles up the mountain.
<u>Answer:</u>
36° and 54°
<u>Step-by-step explanation:</u>
We are given that one of the small angles of a right angled triangle is 18 less than twice the measure of the other small angle.
We are to find the measure of both angles.
Assuming to be the other small angle, 8 less than twice the measure of the other small angle =
.
Summing all three angles up ti get:
x = 36°
So other angle will be 54°.