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2 years ago

Which of these is NOT continuous data:

Mathematics

1 answer:

zavuch27 [327]2 years ago

5 0

Answer:

A. number of days it rains in a year

Step-by-step explanation:

A. number of days it rains in a year - discrete

B. height of the grass in a nature preserve each year-continuous

C. amount of rainfall in a year-continuous

D. level of water in a rain barrel-continuous

The number of days can only be an integer and therefore is discrete data

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−\frac{7}{10} ÷\frac{2}{5}

bazaltina [42]

$$ −\frac{7}{10} \div\frac{2}{5}= \frac{-7}{4} $$ . totally answer. I hope helping with this answer

3 0

3 years ago

A spherical balloon is inflating with helium at a rate of 64 pi StartFraction ft cubed Over min EndFraction . How fast is the b

olga2289 [7]

Answer:

The radius of the balloon is increasing at a rate of 4 feet per minute.

Step-by-step explanation:

We are given the following in the question:

$\dfrac{dV}{dt} = 64\pi \dfrac{\text{ ft}^3}{\text{min}}$

Volume of sphere is given by

$V = \dfrac{4}{3}\pi r^3$

where r is the radius of the balloon.

Instant radius, r = 2 ft

Rate of change of volume =

$\dfrac{dV}{dt} = \dfrac{d}{dt}(\dfrac{4}{3}\pi r^3)\\\\\dfrac{dV}{dt} =4\pi r^2\dfrac{dr}{dt}$

Putting values, we get,

$64\pi = 4\pi (2)^2\dfrac{dr}{dt}\\\\\Rightarrow \dfrac{dr}{dt} = 4$

Thus, the radius of the balloon is increasing at a rate of 4 feet per minute.

5 0

3 years ago

-2x - 5y = 13 2x - 5y =17

Flura [38]

{-2x-5y=13

{2x-5y=17 (+)

-2x+2x-5y-5y=13+17

-10y=30 /:(-10)

y=-3

2x-5y=17

2x-5*(-3)=17

2x+15=17

2x=2

x=1

Solution: (1; -3)

6 0

3 years ago

Which property justifies this statement?

lakkis [162]

the Reflexive Property of Equality

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3 years ago

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TEA [102]

Answer:i dont know

Step-by-step explanation:

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3 years ago