The square root of a whole number will be rational if the whole number is a perfect square (i.e 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 144 etc) and irrational otherwise.
Rational number is a number that can be described as m/n
so a fraction can be a rational number, 0.8=4/5
Irrational numbers can't be written as a fraction
The part about the number having to be a perfect square is still correct, if it's not a prefect square than it will just keep going(a decimal that never ends)
for example the square root of 0.64 is 0.8
and the square root of 10 is 3.162277...
as you can see the 0.64 one ends and is rational, whereas the 10 one just keeps going and is irrational.
I am not completely sure if tis is correct. I just took 16 and multiply them for the answer B and C. hope this can help you.
Answer:
y = 2
Step-by-step explanation:
Since the line is horizontal there cannot be any slope
Lets take a quick look at the rate of change in the graph. Apologies for how blurry the image is, but we can see for every minute 3 gallons of water gets poured in the tank. So, the answer would be 3!
Answer:
D. 363 Let me know if you have any questions.
Step-by-step explanation:
treat it as two figures. both look to be all made of rectangles, or in other words it is a rectangular prism. To find the volume of a rectangular prism just multiply the height, length and width together.
So let's label them small shape and big shape.
Big shape looks to have side lengths of 3 in, 12 in and 8 in, so multiply these together to get the volume. so 3*12*8 = 288 square inches.
Small shape will multiply 3*5*5 = 75. So the main shape is just the two pushed together, so you add the two. 288+75=363
