<u>Answer:</u>
Distance = 3r
<u>Step-by-step explanation:</u>
We are to write an algebraic expression and then simplify it for the given situation:
<em>The distance traveled by a train in three hours with a constant speed of r miles per hour.</em>
We know the formula of distance linking the speed and the time.
Distance = speed × time
Substituting the given values to get:
Distance = r × 3
Distance = 3r
ANSWER:
a. y=3x+2
b. y=-1/2x-1
find the y intercepts that fit with the coordinates and for a parallel line the slope stays the same, while for a perpendicular line the slope flips and turns into the opposite symbol.
Put your calculator in <em>degrees mode</em>.
1.45 is the correct number of <em>radians</em>.
The answer is a. 16x+h
Since a triangle is isosceles, its both legs are the same. So, we have two sides and a hypotenuse (a, a, and h)
A midsegment length (m) of a triangle is a half of a parallel bottom leg of the triangle (a):
a = 2m
The perimeter (P) of the triangle is the sum of its sides:
P = a + a + h
It is given:
m = 4x
Since a = 2m, we have:
a = 2*4x = 8x
Therefore, the perimeter is:
P = a + a + h = 8x + 8x + h = 16x + h
