Answer:
Step-by-step explanation:
So, it's x*x+x*-3+-4*x+3*-3
That simplifies to x^2 - 7x + 12
Answer:
Triangle A: Acute
Triangle B: Obtuse
Triangle C: Acute
Triangle D: Right
Step-by-step explanation:
Right angle: 90°
Acute angle: 0°-90°
Obtuse angle: 90°-180°
F(x)=3(16) +3/4x
=48+ 3/4(16)
=48=11.30
=59.30
Notice all the important features of the graph,
1) The graph is a parabola;
2) Roots are -2, -1
3) A point is (-3, 2)
Put all this information into an equation;
y=a(x-r)(x-s)
y=a(x+1)(x+2) <-- signs revered due to the negative sign
2=a(-3+1)(-3+2) <-- put in the values of x and y to find a
2=a(-2)(-1)
2=a(2)
2/2=a
1=a
y=(x+2)(x+1) <-- find in standard form by expanding
y= x²+x+2x+2
y=x²+3x+2
Therefore, the correct option is the second one;
Hope I helped :)
1.5x+4y=784
x+y=306
1.5x+4(306-x)=784
1.5x+1224-4x=784
1224-2.5x=784
-2.5x=-440
x=176
now do y=306-176
your answer is 130.