You are asking for the condition needed for the
two segments to be perpendicular to each other. 

If the slope of one segment is m, then the slope of a perpendicular segment would be -1/m 

this means that m2 = -1/m and so m2 x m = -1 

If you look carefully at your choices, the 3rd answer involves the two slope and has the -1. It's 
the correct answer.

5 0

3 years ago

Read 2 more answers

-12°F+ -23°F please don't let me down

coldgirl [10]

Plus a negative value becomes subtraction:

-12 + -23 = -12 -23 = -35

3 0

3 years ago

A roulette wheel has the numbers 1 through 36, 0, and 00. A bet on three numbers pays 11 to 1 (that is, if you bet $1 and one of

OLga [1]

Answer:

You are expected to lose $0.05 (or win -$0.05)

Step-by-step explanation:

Since the roulette wheel has the numbers 1 through 36, 0, and 00, there are 38 possible outcomes.

In this bet, you are allowed to pick 3 out of the 38 numbers. Thus, your chances of winning (P(W)) and losing (P(L)) are:

$P(W)=\frac{3}{38}\\P(L) = 1 - P(W)\\P(L) = \frac{35}{38}\\$

The expected value of the bet is given by the sum of the product of each outcome pay by its probability. Winning the bet means winning $11 while losing the bet means losing $1. The expected value is:

$EV = (11*\frac{3}{38}) -(1*\frac{35}{38})\\EV = -\$0.0525$

Therefore, with a $1 bet, you are expected to lose roughly $0.05

5 0

3 years ago