Find f(-4) if f(x)= -9x+2

f(-4) = 38

Step-by-step explanation:

Given the function, f(x) = -9x + 2, we can evaluate f(-4) by plugging in the value of x = -4 into the function:

f(x) = -9x + 2

f(-4) = -9(-4) + 2

f(-4) = 36 + 2

f(-4) = 38

Therefore, f(-4) = 38.

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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.

= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5