Answer:
y=-4x+2
Step-by-step explanation:
slope intercept form: y=mx+b
parallel lines have the same slope (-4 in this case)
plug in the point (0,2) to the new equation y=-4x+b
2=-4(0)+b --> b=2
final answer: y=-4x+2
Answer:
It is a irrational number
Step-by-step explanation:
The square root of 40 is not a rational number. 40 is not a perfect square, so its square root is irrational. The square root of 40 is: 6.324555320336759. It cannot be written as a simple fraction, so it is irrational.
Well you'd need to convert 45 miles to km
45m = 539.72km.
So the car goes 539.72km an hour.
Now divide 869 by that to get how long it would take.
You get about 1.61 hours.
Answer:
The answer is given below
Step-by-step explanation:
The question is not complete. The correct question is:
A square based pyramid have a height of 30 cm and base of 10 cm. The The square based pyramid is cut horizontally at a height of 15cm to leave this frustum.
Answer:
The frustum would have a base of 10 cm and height of 15 cm. The lower base has a length of 10 cm. to calculate the upper base, we use the formula:
Substituting:
The volume of the frustum is given by the formula:
Where h is the height of the frustum = 15 cm, A1 is the area of the lower base = 10 * 10 = 100 cm², A1 is the area of the upper base = 5 * 5 = 25 cm²
Substituting gives: