b = (a - 3)²
Our aim is to get <u><em>a</em></u> to be alone
1) First we get rid of what's in the brackets. So we subtracts each side by 3. Of course, the opposite of subtracting is adding:
b+3 = a²
2) Now we get rid of the squared in a. Opposite of squaring is square rooting.
3) There we have it. a is now by itself. We can test if we're right by substituting.
Lets make a=2
b=(a-3)²
b= (2-3)²
b= 1
NOW:
Answer:
-2.5
Step-by-step explanation:
We want to evaluate the double integral,
where R is the rectangular region bounded by R={(x, y) | 0 ≤ x ≤ 1, 0 ≤ y ≤ 1}
We apply the limits to obtain;
We evaluate the inner integral by integrating with respect to x whiles treating y as a constant.
This gives us,
We evaluate the resulting integral now to obtain;
Answer:
(55/38,-16/19)
Step-by-step explanation:
4x -5y = 10
2x + 7y = -3
4x -5y = 10
-4x -14y = 6
-19y = 16
y = -16/19
2x -112/19 = -57/19
x = 55/38
Answer:
(8x+3)²
Step-by-step explanation:
The polynomial has perfect squares on wither end of the expression including 64 and 9. This means it is likely factoring to (8x +3)². TO check this we will multiply it out.
(8x+3)(8x+3) = 64x² + 24x + 24x + 9 = 64x² + 48x + 9
She earns 20,286 more than her because 20,572-10,286 is 10,286
