69. [-/1 Points] DETAILS BERRAPCALCBR7 5.3.033. MY NOTES ASK YOUR TEACHER Use a definite integral to find the area under the curve between the given x-values. f ( x ) = _ from x = 1 to x = 7 square units 70. [-/1 Points] DETAILS BERRAPCALCBR7 5.3.035. MY NOTES ASK YOUR TEACHER Use a definite integral to find the area under the curve between the given x-values. f ( x) = x-1 + x4 from x = 1 to x = 2 square units 71. [-/1 Points] DETAILS BERRAPCALCBR7 5.3.036. MY NOTES ASK YOUR TEACHER Use a definite integral to find the area under the curve between the given x-values. f(x) = 8e2x from x = 0 to x = 4 square units 72. [-/1 Points] DETAILS BERRAPCALCBR7 5.3.039. MY NOTES ASK YOUR TEACHER Use a definite integral to find the area under the curve between the given x-values. f(x) = ex/7 from x = 0 to x = 7 square units