Answer:
−6y+24
Step-by-step explanation:
Answer:
(6a - 7b)(6a + 7b)
Step-by-step explanation:
Given
36a² - 49b² ← this is a difference of squares and factors in general as
a² - b² = (a - b)(a + b)
Thus
36a² - 49b²
= (6a)² - (7b)²
= (6a - 7b)(6a + 7b)
Answer:
Solution given:
length of cube[a]=6ft
volume of cube =a³=6³=216ft³
again
For cylinder
d=4ft
r=2ft
h=6ft
volume of cylinder=πr²h=π×2²×6=75.4ft³
Now
remaining volume=216-75.4=<u>140.6ft³</u>
is a required answer.
Answer:
D
Step-by-step explanation:
-3x + 3y = 9 (1)
2x - 7y = -14 (2)
From (1),
3y= 9 + 3x
y = 3 + x
Using (2),
2x - 7(3 + x) = -14
2x - 21 - 7x = -14
-5x = 7
x = -7/5 = -1⅖
y = 3 + x = 3 - 7/5 = 8/5 = 2⅗