Answer:
x = -2±i
Step-by-step explanation:
Round the number like for you 270+350=620
Answer:
a=8
b=5
x=13
Step-by-step explanation:
Use Pythagoras's Theorem to find A
h²=y²+z²
10²=a²+6²
100=a²+36
∴a²=64
∴a=8
Use Pythagoras's Theorem to find A
h²=y²+z²
9²=b²+6²
81=b²+36
∴b²=45
∴b=3√5
x=a+b
=8+3√5
Answer:
C 10⁴
Step-by-step explanation:
The given equation is

Javier has to solve for n
He can multiply through by 100 to get;

He can now divide through by 775 to obtain:

He can now easily simplify to get:

We rewrite as a power to get:

-31 - 4x = 5 - 5 ( 1 + 5x )
-31 - 4x = 5 - 5 - 25x
-31 - 4x = -25x
+ 31 to both sides
-4x = 6
/ -4 to both sides
x = 6/-4 = 3/-2