A.
The dotted line means that y has to be strictly less than 1.
The solid line means that y=x are also solutions giving y more than or equals to x.
Answer:
The first one is the 3rd option and the second one is the 4th option
Step-by-step explanation:
The answer would be 14x+5 I’m pretty sure
Step-by-step explanation:
The speed of sound has nothing to do with "sea level" and sound pressure and without the medium air there is no speed of sound. In SI units with dry air at 20°C (68°F), the speed of sound c is 343 meters per second (m/s). This also equates to 1235 km/h, 767 mph, 1125 feet per second (ft/s), or 666 knots.
Step-by-step explanation:
b. what is the perimeter of the rectangle in terms of k?