Answer:
x=4,y=3
Step-by-step explanation:
x=19-5y if we transpose equation 2 for x.
Plug that into equation 1
4(19-5y)+3y=25
76-20y+3y=25
76-25=17y
51=17y
y=3
Plug y=3 into equation 2
x+5(3)=19
x=19-15=4
Answer:
area is 630
we can multiply 2 1 by 21= 63 by 10=630
X⁴ - 12x² + 36
This is the equivalent expression.
(x²-6)²
1) (x²-6)*(x²-6)
2) x²(x²) + x²(-6) -6(x²) -6(-6) (distributive multiplication)
3) x⁴ - 6x² - 6x² + 36 = x⁴ - 12x² + 36 (group together figures that are the same value)
Answer:E,F
Step-by-step explanation:
We can cancel out A, and D becuase it isnt part of a 30,60,90 triangle.
In c, The hypotenuse is not EG, it is EF. In n Ef is the hypotenuse but, to find the hypotenuse you have to multiply the shorter side by 2 not square root of (3)
