Answer:
1
Step-by-step explanation:
x-7=-5x-1
x-(-5x)-7=-1
x+5x-7=-1
6x-7=-1
6x=-1+7
6x=6
x=6/6
x=1
Answer:
-3
Step-by-step explanation:
x - 4 = - 7
Carry over the - 4 and make x the subject.
x= - 7 + 4
x= - 3
Therefore x is - 3
Answer:
4x^2 -16
Step-by-step explanation:
(2x + 4)(2x - 4)
FOIL
first:2x*2x = 4x^2
outer: -4 *2x = -8x
inner: 4*2x = 8x
last: -4*4 = -16
Add them together
4x^2 -8x+8x =-16
4x^2 -16
Answer:
pretty sure it would be 42 degrees. angle 3 and 7 would have the same value as well
Step-by-step explanation:
Answer:
(2,2)
Step-by-step explanation:
step 1
Find the equation of f(x)
is a line that passes through the points (0,6) and (3,0)
Find the slope
The function f(x) in slope intercept form is equal to
step 2
Find the inverse
Let y=f(x)
Exchange the variables x for y and y for x
Isolate the variable y
Let
step 3
Solve the system of equations
equate both functions
solve for x
substitute the value of x in any of the functions
The solution is the point (2,2)
therefore
Their point of intersection is (2,2)