Answer:
x can be 3, -3, i, or -i.
Step-by-step explanation:
If you can't find the factoring by looking at this, simplify the equation.
let
x
2
=
y
to make things easier to see
Now we have
y
2
−
8
y
−
9
=
0
See it now?
We can factor into
(
y
−
9
)
(
y
+
1
)
Now substitute back in
x
2
for
y
.
(
x
2
−
9
)
(
x
2
+
1
)
Since
(
x
2
−
9
)
is a difference of two squares,
(
x
−
3
)
(
x
+
3
)
Now we have
(
x
−
3
)
(
x
+
3
)
(
x
2
+
1
)
x can be 3, -3 for the first two parts
x
2
+
1
=
0
can become
x
2
=
−
1
Taking the positive and negative root means
x
=
±
√
−
1
Thus
x
=
±
i
in addition to 3 and -3.
It is 0.2 x 0.4
The green part is 20 squares and the yellow part is 40 squares. The intersection has 8 squares which means the answer is 0.08
Observe that 85 is an odd number. That means, one of the prime numbers must be even to have an odd sum with another odd number. As we know, the only even prime number is 2. Hence, the other number is 83.
So, the product of these two prime numbers is 83 x 2 = 166.
Thus, the answer is 166<span>. </span>
Answer:
80%
Step-by-step explanation:
divide the number of days that there was sun (4) by the total number fo days (5), then multiply by 100 to get to a percent.
if you have any questions, leave them in the comments and i will try to answer them, if this helped, please give brainliest.
No the signs stay the same
