Substitute 2 into x in the equation so f(x)= 5x2 -12 = -2 so it’s C = -2
Answer:
7
Step-by-step explanation:
42/ 6 = 7
Answer: 55.1°F
Step-by-step explanation:
We are informed that there is a 1.6°F drop in temperature for every thousand feet that an airplane climbs into the sky, if the plane reaches an altitude of 2,000ft, the drop in temperature will be:
= 1.6° × 2
= 3.2°F
If the temperature on the ground is 58.3°F, then the temperature when the plane reaches an altitude of 2,000 ft will be:
= 58.3°F - 3.2°F
= 55.1°F
the red square shows that this is a right angle, so we can just subtract 52 to find z
90-52=z
38=z
