Answer:
8409 es 8×10³ es 8 4×10² es 4 0×10¹ es 4 9×10⁰ es 9
Answer: 18
Step-by-step explanation:
9+9
<em>you just add 8 + 8 + 8 it equals </em><u><em>24. rounded it will be 20</em></u>
<u><em>--------------------------------------------------</em></u>
<u><em>im pretty sure thats how you do it if not sorry</em></u>
Answer:
a = 45 degrees
Step-by-step explanation:
Since both angles are a, they are equal to each other
Also, we know that the right angle means it measures 90 degrees
So, (180-90)/2 = a
a = 45 degrees
Length of the outer frame: 4+2x
width of the outer frame: 3+2x
area of the outframe: (4+2x)(3+2x)=15
expand the equation: 12+8x+6x+12x^2=15
combine like terms: 4x^2+14x-3=0
