<span>(5a</span>⁴<span>b</span>²<span>)</span>³<span>(-2b</span>⁴<span>) = (125a</span>¹²b⁶<span>)(-2b</span>⁴<span>) = -250a</span>¹²b¹⁰
Answer:
x = 1 and y =1
Step-by-step explanation:
y = -7x + 8
sub into other eq
-7x + 2(-7x + 8) = -5
-7x - 14x + 16 = -5
-21x = -21
x - 1
y = -7(1) + 8
y = 1
Answer:
I
Step-by-step explanation:
I don't know
18. 0.0011
20. 1/625
19. 0.0011
21. 1/27
Answer:
Step-by-step explanation:
x +2y = 8 ----- (I)
x = 8 - 2y
x - 3y = 6 -------(II)
Substitute x = 8 - 2y in equation (II)
8 - 2y - 3y = 6 {add like terms}
8 - 5y = 6
Subtract 8 form both sides
-5y = 6- 8
-5y = -2
Divide both sides by -5
-5y/-5 = -2/-5
y = 2/5
Substitute y = 2/5 in equation (I)

x = 36/5