Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 2.

75.36

Step-by-step explanation:

Given

3.14(a² + ab) ← substitute a = 4, b = 2 into the expression

= 3.14(4² + 4(2)) = 3.14(16 + 8) = 3.14 × 24 = 75.36

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

the answer is mp

step-by-step explanation: