Determine if the bioconditional is true. if false, give a counterexample

"the bulb does not shine if and only if the lamp is unplugged"

True/False

Counterexample:

Which equation represents the line that is parallel to y = 3 and passes through (-2,-8) ? A. x = - 2 B. x = 3 C. y = - 8 D. y = 3x - 2

A, b, c, d are the roots of 3x⁴-6x²+2=0. what is the value of a⁴+b⁴+c⁴+d⁴?

A fence builder uses boards 3 1/2 feet long for the vertical slats on the fence. How many slats can be made from a board that is 42 feet long? A. 6 slats B. 12 slats C. 18 slats D. 147 slats

Write an expression for the calculation divide 15 into thirds and subtract from 14 divided into half

A hexagon with a side length of 21.2 meters and an apothem of 18.4 meters.

Deon rented a truck for one day. there was a base fee of $16.95, and there was an additional charge of 75 cents for each mile driven. Deon had to pay $220.20 when he returned the truck. For how many miles did he drive the truck?

It is belived tbat about 3/4 of our dreams invlove people you know,. write an expression to describe the number of dreams that include people you know out of 38 dreams

Your company intends to purchase a 400 tonne capacity injection moulding machine. A similar machine was purchased eight years ago for $89,500. The price index for heavy duty equipment in the plastics industry was 163.6 eight years ago and is 207.

The summer solstice can occur on any day of the week, with each day being equally likely. what is the probability the summer solstice will occur on a weekend?

If a girl walks 1 3/4 miles and it takes her 50 minutes. how many miles will she walk in one hour?