Step-by-step explanation:
Union = elements of A + elements of B
Union = ( 1,6,7,9,12)
1) given x^4 + 95x^2 - 500
2) split in two factors with common factor term x^2: (x^2 + )(x^2 - )
3) find two numbers that add up 95 and their product is - 500:
=> 100*(-5) = - 500 and 100 - 5 = 95
=> (x^2 + 100)(x^2 - 5)
4) factor x^2 - 5 = (x + √5) (x - √5)
5) write the prime factors: (x^2 + 100) (x + √5) (x -√5)
6) find the solutions:
x^2 + 100 = 0 => not possible
x + √5 = 0 => x = - √5
x - √5 = 0 => x = √5
Answer: x = √5 and x = - √5
Answer:
hectors toy
Step-by-step explanation:
0.7 is equal to 0.70 and 0.72 > 0.70
The dimensions are 2 ft. by 6 ft. 2*6 is 12, the area. 2+2+6+6 is 16, the perimeter.
Answer:
62 miles per hour speed if you drove 325 miles in 5 1/4 hours
Step-by-step explanation:
Using formula:
As per the statement:
if you drove 325 miles in 5 1/4 hours
⇒
miles
and
Time = 
hours
Then by above formula we have;
miles per hour
Therefore, 61.90 ≈ 62 miles per hour speed if you drove 325 miles in 5 1/4 hours
