Answer:
y= -6x + 39
Step-by-step explanation:
y = 1/6x - 2
to find the equation that is perpendicular to it, there gradients timesed together equal -1
so 1/6 × ? = -1
? = -6
so the start of the equation is,
y = -6x + c
now we need to sub in the coordinates (7,-3) to find the rest of the equation
-3 = -6(7) + c
-3 = -42 + c
39 = c
so the equation is...
y= -6x + 39
2 b 3 c 4 e 5a 6 b 7 d it's the awnsers 2 thru 7
Answer:
The mass of the cubic granite block is 1408 g .
Step-by-step explanation:
Formula
Volume of a cube = a³
Where a is the side of the cube .
![Density = \frac{Mass}{Volume}](https://tex.z-dn.net/?f=Density%20%3D%20%5Cfrac%7BMass%7D%7BVolume%7D)
As given
one side of the cube is 8 cm .
(The figure is shown below.)
Thus
Put in the formula
Volume of a cubic granite block = 8 × 8 × 8
= 512 cm³
As given
The density of cube is 2.75 g/cm³.
Put in the formula
![2.75 = \frac{Mass}{512}](https://tex.z-dn.net/?f=2.75%20%3D%20%5Cfrac%7BMass%7D%7B512%7D)
Mass = 2.75 × 512
Mass = 1408 g
Therefore the mass of the cubic granite block is 1408 g .