Answer:
Step-by-step explanation:
Total surface of the cube = 6a²
= 6 * 42 * 42
= 10584 cm²
Hole that is drilled out, will make a cylinder shape in the middle of the cube
Volume of iron in the cube = Volume of cube - volume of cylinder
Volume of cube = a³
= 42 * 42 * 42
= 74088 cm³
Cylinder:
r = 14/2 = 7 cm
h = sideof the cube = 42 cm
Volume = πr²h
= 6468 cm³
Volume of iron in the cube = Volume of cube - volume of cylinder
= 74088 - 6468
= 67620 cm³
2x²- x -3 = 0 ⇒ 2x²-x= 0 + 3 ⇒ 2x² - x = 3 ⇒ 2x = 3 ⇒ x = 1.5
The answer is b, it goes down by the same amount each time in the y values and up by the same amount each time in the x values.
Billie walks 1.5 miles in half an hour. What is Billies walking speed in miles per hour?
In general speed=Distance over time
so in this case for instance
speed= 1.5 miles over .5 hours= 3 and the miles over hours!
Hope this helps!
we have to write an equation
The sum of two and the quotient of a number x and five
Firstly, we will find the quotient of a number x and five
For finding quotient , we always divide
For example: if we have to find quotient of a number 10 and 2
so,
quotient is
Similarly , we have to find
the quotient of a number x and five
so, the quotient is
now, we need to add 2 with quotient
so, we will get equation as
................Answer
