Answer:
if youre multiplying them: x²+11x+28
if youre adding them: 2x+11
Step-by-step explanation:
im a bit confused on what youre asking for so ill just put both
(x+4)(x+7):
x²+11x+28
(x+4)+(x+7):
2x+11
Answer:
D
Step-by-step explanation:
X - y = 2400/6 = 400 where x = speed of plane and y = speed of wind.
x + y = 2400/5 = 480 - flying with the wind
adding the 2 equations
2x = 880
x = 440
Speed of the plane with no wind = 440 mph
(2/5) / (9/1)
Flip second fraction and multiply instead of divide
(2/5) * (1/9)
= 2/45
Answer:
1.y=3x-7
2.y=-3x-5
3.y=x+2
4.y=-4x+1
5.y=x+6
6.y=1/2x+5
Step-by-step explanation:
parallel lines have the same slope
1.y-2=3(x-3)
y-2=3x-9
y=3x-9+2
y=3x-7
2.y-(-2)=-3(x-(-1))
y+2=-3x-3
y=-3x-3-2
y=-3x-5
3.y-1=1(x-(-1)
y-1=1(x+1)
y-1=1x+1
y=1x+1+1
y=1x+2
4,y-(-3)=-4(x-1)
y+3=-4x+4
y=-4x+4-3
y=-4x+1
5.y-2=1(x-(-4)
y-2=1(x+4)
y-2=1x+4
y=1x+4+2
y=1x+6
6.y-3=1/2(x-(-4)
y-3=1/2(x+4)
y-3=1/2x+4/2 simplify 4/2 to 2/1 =2
y=1/2x+2+3
y=1/2x+5
