Answer:
(3w - 7)(3w + 7)
Step-by-step explanation:
The expression is a difference of squares and factors in general as
a² - b² = (a - b)(a + b)
Thus
9w² - 49
= (3w)² - 7²
= (3w - 7)(3w + 7)
Step-by-step explanation:
Putting values of m and n
10(5) + (4)2 / 4
50 + 16/4
50 + 4 = 54
B)70 because sina=cos(90-a)
One gallon of gas =44.8 miles
She put in 5 gallons
So do 5 times 44.8
which equals 224 miles
Answer:
2.02 i think
Step-by-step explanation: