All the angle measures in the sign are 90. b. you increase each side length by 6 inches. is the new sign similar to the original

No, the new sign is not similar to the original.

Step-by-step explanation:

Shapes are similar when each pair of corresponding sides in the two shapes have the same scale factor.

The scale factor is found when you divide a side on one shape with the corresponding side on the other shape.

Use a mock situation:

A rectangle is 6 X 8.

The new rectangle, added 6 to each side, is 12 X 14.

See if the scale factor is the same.

12 ÷ 6 = 2

14 ÷ 8 = 1.75

Since the scale factors, which determine how much a shape grows or shrinks, are not the same, the new sign would not be similar.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

she would want to sell 10 full-year subscriptions and at least 9 half-year subscriptions to get a total of at least $300. 

i hope this answer you! if you have any further questions or concerns, feel free to ask! : )

step-by-step explanation:

mark brainliest!