If f(x) = 2x2 − 10, find f(5). (1 point) a
90

b
10

c
7.5

d
40

D 40

Step-by-step explanation:

2x^2-10  if (5)

2(5)^2-10

2(25)-10

50-10

40

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.

0.32

step-by-step explanation:

2.24/7