Answer + Step-by-step explanation:
<u>24 + 7 and 9×(24+7)</u>
31 and 9 x (31)
31 and 279
the number is multiplied by 9
<u>12 - 7 and 4x(12-7)</u>
5 and 4 x (5)
5 and 20
the number is multiplied by 4
<u>3×(21 + 4) and 21 + 4</u>
3 x (25) and 25
75 and 25
the number is multiplied by 3
making the left side 3 times larger
<u>40 × 5 and 40 × 20</u>
200 and 800
A - 3b = 4 . . . . (1)
a = b - 2 . . . . . (2)
Putting (2) into (1), we have
b - 2 - 3b = 4
-2b = 4 + 2 = 6
b = 6/-2 = -3
From (1), a = b - 2 = -3 - 2 = -5
Hence, solution = (-5, -3)
The answer is 218’. A foot front is measured by property. So for this question, you need to find the frontage feet.
The average rate of change of <em>f(x)</em> on -3 ≤ <em>x</em> ≤ 3 is given to be
(<em>f</em> (3) - <em>f</em> (-3)) / (3 - (-3)) = -2.5
If <em>f</em> (-3) = 14, then
(<em>f</em> (3) - 14) / (3 + 3) = -2.5
(<em>f</em> (3) - 14) / 6 = -2.5
<em>f</em> (3) - 14 = -15
<em>f</em> (3) = -1
