Answer:
x=1
y=-4
Step-by-step explanation:
Since -x-3=y subsitue that in at the top equation




Plug x=1 back into the equation to solve for y.


Answer:
2nd option
Step-by-step explanation:
A difference of squares has the general form
a² - b²
where the terms on either side of the subtraction ( the difference ) are both perfect squares.
The only one fitting this description is
16a² - 4y²
= (4a)² - (2y)² ← difference of squares
Answer:
b. both functions have a negative slope
Step-by-step explanation:
The given function is

This function is of the form
, where
is the slope and
is the y-intercept.
We can also determine the slope of the function in the table using any two points, say
.
The slope formula is given by,
.
If
, then,

.
We can see that both functions have a negative slope.
The correct answer is B.
<span>arccos (cos pi/2)=?
</span>cos pi/2=0, arccos (0)=?, we know that cos pi/2=0, so cos^-1 (o)= Pi/2, but cos^-1 (o)=arccos (0), so arccos (cos pi/2)=Pi/2
I think the answer to this is .6 or 1.7