Answer:
X = 10
Step-by-step explanation:
if we say 1/2 base = <em>a</em>
a² = 13² - 12²
a² = 25
a = √25
a = 5
if 1/2 base = 5 then x = a × 2
hence X = 5 × 2 = 10
(2-7i)(-1+4i)
2x-1=-2
2x4i= 8i
-7ix-1=7i
-7ix4i=-28i^2
so the answer is
-2+8i+7i+28i^2
=28i^2+15i-2
:)
Answer:
a) 15.28 hours
Step-by-step explanation:
535/-35
≈-15.28
but time is always positive so it would take him 15.28 hours
Answer:

Step-by-step explanation:
We want to write an integer expresion to represents the verbal expresion:
"the opposite of the absolute value of negative seven"
The absolute value of negative seven is written as:

When we simplify this, we get 7.
This integer is positive.
The opposite of positive seven is negative seven.
Therefore the required integer expresion for "the opposite of the absolute value of negative seven" is 
Hello,
x/4=14/16
==>x/4=7/8
==>x=7*4/8
==>x=7/2
==>x=3.5
What else?