Answer:
it is already in it's simple form
Heya! Princess Kimmie ![\star](https://tex.z-dn.net/?f=%5Cstar)
Let the Direct Variation Equation of Given Ordered pairs be : y = nx
Given : y = 4.8 when x = 4
Substituting the above values in our Equation, we get :
⇒ 4.8 = n × 4
⇒ ![n = \frac{4.8}{4} = 1.2](https://tex.z-dn.net/?f=n%20%3D%20%5Cfrac%7B4.8%7D%7B4%7D%20%3D%201.2)
⇒ The Equation is y = 1.2x
Option 3 is the Answer ![\star](https://tex.z-dn.net/?f=%5Cstar)
Answer:
9 cm.
Step-by-step explanation:
Let the height of the pyramid be h cm, then the height of the cuboid is (15 - h) cm.
Volume of the pyramid:
= 1/3 * h * s^2 where s is the length of a side of the square base.
= hs^2/3 cm^3
Volume of the cuboid:
= s^2(15 - h).
So we have:
hs^2/ 3 = 300.......................(1)
s^2(15 - h) = 600..................(2)
From equation (1) :
h s^2 = 900
s^2 = 900/h
Now substitute for s^2 in equation (2) :
(900/h)(15 - h) = 600
Multiply through by h:
900(15 - h) = 600h
13500 - 900h = 600h
1500h = 13500
h = 9 cm (answer).
The answer would be ab+ac