<span>the train cannot exceed a length of 1100 feet

Now, train A = 28 cars at 30 feet each

Therefore, Train A's total length = 28*30 = 840 feet < 1100 feet.

</span>Now, train B = 22 cars at 40 feet each

Therefore, Train B's total length = 22*40 = 880 feet < 1100 feet.

Thus, both the <span>trains meet the requirement. </span>

3 0

3 years ago

Your cell phone plan costs $ 24.99 per month plus $ 0.16 for each text message you send or receive. You have at most $ 32 to

vitfil [10]

Answer:

Step-by-step explanation:

3 0

3 years ago

1 (-2,2) Write the equation, in point-slope form, of the line that is perpendicular to the given line and passes through the poi

lozanna [386]

Answer:

y = -5x - 8

Step-by-step explanation:

Take the points (-5,-4) and (0,-3) plug them into this formula to get the slope.

$\frac{y2 - y1 }{x2 - x1}$

Now plug in your points

$\frac{-3 - (-4)}{0 - (-5)} \\\\\frac{1}{5}$

Since you're slope is 1/5 the slope of the perpendicular line is going to be the totally opposite -5 is the slope of the perpendicular line.

Now plug in -5 and the point (-2,2) into y = mx + b to get the y-intercept

2 = -5(-2) + b (b represents the y-intercept)

2 = 10 + b (subtract 10 from both sides)

-8 = b

The perpendicular line looks like this y = -5x - 8

Hope this helps ya! Keep smiling!

7 0

3 years ago