Solve the first equation for y.
3x+y=2
y=2-3x
Substitute
4x+(2-3x)=20
4x+2-3x=20
x=18
Answer:
Hello...... here is a solution :
1 -
Hello:
the equation of "m" is : y = ax+b
the slope is a : a×(- 2/3) = -1......( perpendicular to a line : y=-2/3x+6 when the slope is -2/3 )
a = 3/2
the line " n" that passes through (4, - 3) and parallel to line "m" :
when the slope is 3/2 ( same slope )
the equation in slope-intercept form of the line" n" is :
y – (-3)= (3/2)(x – 4)
6^9 x 6^-7 = 6^2
x= -7
Hope this helps :)
Answer:
x = -1, y = -2.
Step-by-step explanation:
Using the elimination method,
multiply the first eqn by 2 and the 2nd eqn by 5.
6x - 10y = 14
25x - 10y = -5
Subtract one of the new equations from the other
-19x = 19
x = -1
Sub x=-1 into the 2nd eqn
-5 - 2y = -1
y = -2
Hence x = -1, y = -2.
Answer:
Step-by-step explanation:
ans is c) f(x) is a polynominal function. The degree is 5 and the leading coefficient is -7.
x -> ∞, f(x) -> ∞; x -> -∞, f(x) -> -∞
the only ans that follows the above is a) f(x)=7x^9-3x^2-6
correct statments are: c) (1, 6.08) and (3, 0.75) are local extrema for the function and d) (-2, -9.67) is the global minimum for the function.
