B the answer is b hope this helped
Answer:
(1)
(2)
We can solve for y from equation (1) and we got:
(3)
And replacing (3) into (2) we got:
And solving for x we got:
And solving for y from (3) we got:
And the solution would be x = 50 and y =75
Step-by-step explanation:
For this problem we have the following system of equations:
(1)
(2)
We can solve for y from equation (1) and we got:
(3)
And replacing (3) into (2) we got:
And solving for x we got:
And solving for y from (3) we got:
And the solution would be x = 50 and y =75
It's important to have an order of operations because without it then you could solve the math equation however you want. For example, using order of operations: 5+6×4=29, without using order of operations: 5+6×4=44. Without the order
operations you could solve the math equation however you want. If there was no order then there would never be a correct answer to the equation.
<span>A^2(-B^2) for A = 4 and B = -5
</span>
A^2(-B^2) =
= 4^2 * [-(-5)^2]
= 16 * (-25)
= -400
The correct answer to the question you asked is not in the choices.
Maybe you copied it incorrectly, and you meant
<span>A^2-B^2 for A = 4 and B = -5,
</span><span>
</span><span>
</span><span>in which case it's
</span><span>
</span><span>
</span><span>4^5 - 5^2 = 16 - 25 = -9</span>