Consider a sequence whose first five terms are -1.75 -0.5 0.75 2 and 3.25

The sequence is + 1.25.

Step-by-step explanation:

The sequence is + 1.25

-1.75 + 1.25 = - 0.5

-0.5 + 1.25 = 0.75

0.75 + 1.25 = 2

2 + 1.25 = 3.25

From 2 to 3.25, you can clearly figure out the sequence by subtracting the two values.

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116