Answer:
6
Step-by-step explanation:
siri=6x-10
alexa= 50-4x
im making a table which is an easy way to tell or you can guess and check
X S A
--------------------
2 | 2 |42
3 | 8 |38
4 | 14 |34
5 | 20 |30
6 | 26 |26
So x+y=-14
xy=-240
x+y=-14
subtract y from both sides
x=-14-y
subsitute for x in second equation
(-14-y)y=-240
multiply
-y^2-14y=-240
add y^2+14y to both sides
0=y^2+14y-240
use quadratic equation to solve which is
if you have ax^2+bx+c so
a=1
b=14
c=-240
subsitute and get
(+/- means that there are 2 equations exg 2+/-8=2+8 and 2-8)
the numbers are 10 and -24
Answer:
with ur head dummy <3....
Answer:
A. ~30°
B. ~240°
C. ~330°
Step-by-step explanation:
<span>y=0.25x-7
y=1/4x-7
Slope of this line has a value of 1/4.
We know that k1*k2=-1 (if lines are perpendicular)
Then k2=-4
The equation of the second line is
y=-4x+b
If this line passes through the poin (-6;8), then 8=-4*(-6)+b
8=24+b
b=8-24
b=-16
The equation is y=-4x-16
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