Answer:
9.) Its equilateral
7.) 24
Step-by-step explanation:
Sorry I only have the answer for 7 and 9.
Answer:
No solutions
Step-by-step explanation:
i did this via substitution so i hope it isn't a problem
3x+y=4
6x+2y=−4
Step: Solve 3x+y=4for y:
3x+y+−3x=4+−3x(Add -3x to both sides)
y=−3x+4
Step: Substitute−3x+4foryin6x+2y=−4:
6x+2y=−4
6x+2(−3x+4)=−4
8=−4(Simplify both sides of the equation)
8+−8=−4+−8(Add -8 to both sides)
0=−12
so there are no solutions
hope this helps!!
Well since she first used half of her allowance all we do is just 9-14=5 and 5*2=10 so we now kn ow that her allowance is of 10 bucks.
Answer:
136 °
Step-by-step explanation:
Answer:
3/20, -3/10
Step-by-step explanation:
Its a quadratic equation, use the quadratic formula. (-b+-
)/2a
20x^2+3x-2=0
(-3+-
)/40
(-3+-9)/40
So you get 6/40=3/20 and -12/40=-3/10