Answer:
322
Step-by-step explanation:
Triangle area = base*height)2Here, area = 23*28/2=322
Answer:
(6x - 7y)(6x + 7y)
Step-by-step explanation:
36x² - 49y² ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b) , then
36x² - 49y²
= (6x)² - (7y)²
= (6x - 7y)(6x + 7y)
The water tank will be filled up in 10 hours. Solution:
Hose B = 2 (A)
Hose C = 3 (B) ; 3 (2(A)); 6(A)
Equation:
Hours = Hose A+B+C
3 hours = A + (2(A)) + (6(A))
3 hours = 10A
A = 0.3 hours
to get hose A on its own:
A=hours
0.3 = 3 hours
=10 hours