A student expanded an expression, as shown. Is the student's work correct? Explain why or why not. −6 ( 4x −
2
13
)

−6(4x) + 6 ( −
2
13
)

−24x −
12
13

PLS HURRY

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0

Use sigma notation to represent the following series for 9 terms.

20 points for the answer. this is for real , don't put random ! a rectangle has a length of 4 centimeters and a width of 7 centimeters. what is the effect on the perimeter when the dimensions are multiplied by 5? the perimeter is increased by a factor of 5. the perimeter is increased by a factor of 20. the perimeter is increased by a factor of 25. the perimeter is increased by a factor of 100.