Answer:
Step-by-step explanation:
y=-3x²-4x+7...(*)
3x+2y=18...(**)
use (*) put the value of y in (**) :
3x +2(-3x²-4x+7)=18
3x-6x²-8x +14 -18 = 0
-6x²-5x- 4 = 0
6x²+5x+4 = 0
delta = b² - 4ac a = 6 b=5 c =4
delta = 5² - 4(6)(4)= 25 -96= -71 negatif
so no reals solution
Answer:
3x + 4y +8 = 0
Step-by-step explanation:
(X1,Y1) = (4,0)
(X2,Y2)=(0,3)
(X3,Y3)=(0, - 2)
Slope(m)=(Y2-Y1)/(X2-X1)
= (3-0)/(0-4)
= -3/4
Equation of the line,
Y-Y3 = m(X-X3)
Y-(-2)= (-3/4) × (X-0)
Y+2= (-3/4)X
Y+2= -3X/4
4(Y+2)= -3X
4Y+8= -3X
4Y+3X+8=0 is the required equation.
Answer: 15
Step-by-step explanation: 5 roses are 25 dollars so what your going to do is multiply 5 by 3 to get 15 do the same with 25, 25 x 3 is 75 so you will get 15 roses for 75 dollars
Answer:135.80
Step-by-step explanation:
Find 40 percent of 97 then have an answer of 135.8 and add an zero because it’s money
Answer: Domain: All real numbers. Range: y=-37
Step-by-step explanation: The function of f(x)=-37 is a horizontal line that goes from negative infinity to positive infinity. The domain can be any number since there is no limit on what the x value can be. The range will always be y=-37 because no matter what x will equal, y will always be equal to -37 in the function of f(x)=-37.