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Rasek [7]
2 years ago
7

A tap running 20ml a minute. How long to a fill a litre. In minutes please

Mathematics
2 answers:
zhannawk [14.2K]2 years ago
6 0

Answer:

20ml in 1 minute. 1000ml is equal to 1 litre.

Step-by-step explanation:

1000/20 = 50

. 50 minutes will take to fill a litre

elena-14-01-66 [18.8K]2 years ago
5 0

<em>Answer:</em>

50 minutes

<em>Explanation:
</em>A litre is 1000 ml, so you are just calculating how many 20 ml is in 1000 ml, which is done by dividing 1000 by 20.

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Fifteen cylinders and 15 rectangular prisms are stacked. Each cylinder has the same top surface area and height as each rectangu
Basile [38]

Answer:

C. The two stacks have the same volume because they have the same height and the same cross-sectional area at every level

Step-by-step explanation:

The volume of a cylinder can be found by multiplying the area of its base by its height.

Similarly, the volume of a rectangular prism can be found by multiplying the area of its base by its height.

Because they have the same base areas and the same heights, the same amount of each figure will result in the same volume from each stack.

6 0
3 years ago
Determine which of the four levels of measurement​ (nominal, ordinal,​ interval, ratio) is most appropriate for the data below.
ira [324]

Answer:

The ratio level of measurement is most appropriate because the data can be ordered differences can be found and are meaningful, and there is a natural starting zero point.

That's the correct answer since our variable is numerical and have a natural starting point at 0 and the negative values not makes sense.

Step-by-step explanation:

The interval level of measurement is most appropriate because the data can be ordered, differences (obtained by subtraction) can be found and are meaningful, and there is no natural starting point.

Our variable is numerical but we have a starting point defined so it can't be an interval variable.

The nominal level of measurement is most appropriate because the data cannot be ordered.

False on this case the bolume can't be a nominal variable since we don't have a categorical variable.

The ordinal level of measurement is most appropriate because the data can be ordered, but differences (obtained by subtraction) cannot be found or are meaningless.

False we don't have ordered relationship among the variable’s observations

The ratio level of measurement is most appropriate because the data can be ordered differences can be found and are meaningful, and there is a natural starting zero point.

That's the correct answer since our variable is numerical and have a natural starting point at 0 and the negative values not makes sense.

8 0
3 years ago
What is the value of x?
QveST [7]

Answer:

12

Step-by-step explanation:

The hypotenuse of a 45-45-90 triangle is equal to the length of a leg times \sqrt{2}

So, in your problem,

x = 6\sqrt{2} (\sqrt{2}

  = 6(2) = 12

4 0
3 years ago
This is a CALCULUS question, "Derivatives As A function"
irina1246 [14]

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Definition:

let f be a function. The derivative function, denoted by f', is the function whose domain consists of those values of  x  such that the following limit exists:

f'(x)= \lim_\\ \ \\ \frac{f(x+h)-f(x)}{h} {h \to 0}

4 0
3 years ago
Show that (5x-7)2 +140x=(5x+7)2​
zhannawk [14.2K]
(5x-7)2 + 140x
= 25x2 - 70x + 14 + 140x
= 25x2 + 70x + 14
= (5x+7)2
8 0
3 years ago
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