Answer:
Step-by-step explanation:
14.
by pythagoras,s theorem

15.
first perpendicular=y(say)
and second perpendicular=z (say)
y²=9²+7²=81+49=130
z²=y²+5²=130+25=155
x²=z²+4²=155+16=171
x=√(171)
The complete factor of the polynomial 625x⁸ − 1 is (25x⁴ + 1)(25x⁴ − 1). Then the correct option is A.
<h3>What is polynomial?</h3>
Polynomial is an algebraic expression that consists of variables and coefficients. Variable are called unknown. We can apply arithmetic operations such as addition, subtraction, etc. But not divisible by variable.
Factor completely 625x⁸ − 1.
We know that

(25x⁴)² − 1²
(25x⁴ + 1)(25x⁴ − 1)
The complete factor of the polynomial 625x⁸ − 1 is (25x⁴ + 1)(25x⁴ − 1). Then the correct option is A.
More about the polynomial link is given below.
brainly.com/question/17822016
Answer:
y = 3x - 13
Step-by-step explanation:
y = -1/3x + 5
Perpendicular lines have slopes that are negative reciprocals of one another
so slope of perpendicular line is 3
y = mx + b
y = 3x + b
Using (1,-10)
-10 = 3(1) + b
-10 = 3 + b
b = -13
y = 3x - 13
the two points are,
(5,4) & (7,10)
so the slope is,

so, the slope of the line is,
m = 3
Answer
THE ANSWER IS C
Step-by-step explanation: