Let the complex number be x + iy
Then by the pythagoras therem
17 = x^2 + y^2
D will satisfy this equation
4^2 + (-1)^2 = 17
answer is D 4 - i
Answer: no
Step-by-step explanation:
plug in (3,10) to y=2x+3
10=2(3)+3
10=6+3
10
9
Answer:
7w - 3(4w + 8) = 11
Distribute.
-5w-24=11 Combine like terms on the left side.
-5w=11%2B24 Add 24 to both sides.
-5w=35 Combine like terms on the right side.
w=%2835%29%2F%28-5%29 Divide both sides by -5 to isolate w.
w=-7 Reduce.
Answer:
Step-by-step explanation:
um
Answer: x = 12 ft
Step-by-step explanation:
let the erect part of the pole be x
the slanted part of the pole will be 25-x
the ground distance = 5
they form a right triangle
apply Pythagoras theorem
5^2+x^2=(25-x)^2
25+x^2=x^2 - 50x + 625
50x=625-25
50x=600
x=600/50
x=12 feet
