For a decreasing function, how will the right hand sum compare with the exact area under the curve, over a given interval? The right hand sum will be .
A-an underestimate
B-an overestimate
C-exactly right
D-there is not enough information given to determine

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Igure 1 and figure 2 are two congruent parallelograms drawn on a coordinate grid as shown below: 4 quadrant coordinate grid showing two parallelograms. figure 1 has vertices at negative 5, 2 and negative 3, 4 and negative 4, 7 and negative 6, 5. figure 2 has vertices at 5, negative 2 and 7, negative 4 and 6, negative 7 and 4, negative 5. which two transformations can map figure 1 onto figure 2? reflection across the y-axis, followed by reflection across x-axis reflection across the x-axis, followed by reflection across y-axis reflection across the x-axis, followed by translation 10 units right reflection across the y-axis, followed by translation 5 units down

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?