Answer:
Option C.
Step-by-step explanation:
Shortest way to solve this question is to find the factors of the given expression.
The given expression is (x² + 13).
Now we have to factorize it.
(x² + 13) = x² + (√13)²
= x² + [-(i)²√(13)²] [Since i = √(-1)]
= x² - (i√13)²
= (x - i√3)(x + i√3) [Since (a² - b²) = (a + b)(a - b)]
Option C will be the answer.
Answer:
Step-by-step explanation:
It is true that for any given odd integer, square of that integer will also be odd.
i.e if 
is and odd integer then 
is also odd.
In the given proof the expansion for 
is incorrect.
By definition we know,
∴ 
Now, we know 
and 
will be even values
∴
will be odd
hence will be odd, which means will be odd.
Answer:
Inequality 7n - 22 >= 64
Solution 7n > = 64 + 22
7n >= 86
n => 12. 28 rounded down to 12
Grace must wash at last 12 cars
Answer:
0.336 in^2
Step-by-step explanation:
Scale down all the proportions:
14 × 0.10 = 1.4
8 × 0.10 = 0.8
3 × 0.10 = 0.3
Multiply new proportions:
1.4 × 0.8 × 0.3 = 0.336
Answer: probly like 90 miles per hour
Step-by-step explanation:
