Answer:
1/2 of a desk
Step-by-step explanation:
If she builds a desk in 2 hours than hald of 1 is 1/2/
<span>8x = 2y + 5
3x = y + 7 so y = 3x - 7
substitive </span>y = 3x - 7 into 8x = 2y + 5
8x = 2y + 5
8x = 2(3x - 7) + 5
8x = 6x - 14 +5
2x = -9
x = -4.5
y = 3x - 7
y = 3(-4.5) - 7 = -13.5 - 7 = -20.5
solutions (-4.5, -20.5)
For
(c+d)(ex+f)
the expanded form is
dex^2+dex+cfx+df
(ce)x^2+(de+cf)x+(df)
ax^2+bx+c
the value of a is ce
the value of b is de+cf
the value of c is df
so
(-2x+3)(x+8)
(-2x+3)(1x+8)
b is 3*1+-2*8=3-16=-13
answer is -13
so pick 13 because we have -B, so B=13
Answer:
First, put the equation of the line given into slope-intercept form by solving for y. You get y = -2x +5, so the slope is –2. Perpendicular lines have opposite-reciprocal slopes, so the slope of the line we want to find is 1/2. Plugging in the point given into the equation y = 1/2x + b and solving for b, we get b = 6.
Step-by-step explanation:
= 16 + 49 - 3(11) - 4(10)
= 16 + 49 - 33 - 40
= -8
