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3 years ago

Which statement about rational numbers is true?

Mathematics

2 answers:

iogann1982 [59]3 years ago

5 0

Answer:

the true one is all fractions containing integers are rational numbers is true

Step-by-step explanation:

i think

babunello [35]3 years ago

3 0

Answer:

All fractions containing integers are rational numbers.

Step-by-step explanation:

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If 12 > -15, which of the following must be true?

Tcecarenko [31]

Answer:

12 is to the right of -15 on a number line.

Step-by-step explanation:

Hope this helps! - CJ

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3 years ago

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castortr0y [4]

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3 years ago

What is the value of the expression when x = 5, y = 4, and z = 3?

Elan Coil [88]

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3 years ago

Read 2 more answers

A spherical balloon is inflated so that its volume is increasing at the rate of 3 ft3/min. How fast is the diameter of the ballo

beks73 [17]

When an spherical balloon volume is increasing at the rate of $3ft^3/min$ then the diameter of the balloon is increasing $\frac{3}{2\pi }ft /min$

How can we find the rate of change of balloon's diameter ?

The volume of a spherical balloon is $v=\frac{4}{3} \pi r^3$

In form of diameter we can write as

$v=\frac{4}{3} \pi (\frac{D}{2} )^3\\=\frac{1}{6} \pi D^3$

Now we will differentiate both sides wrt to $t$ we get

$\frac{dv}{dt} =\frac{1}{6} \pi 3D^2 \frac{dD}{dt} \\\frac{dD}{dt} =\frac{2}{\pi D^2} \frac{dv}{dt} \\\\when r=1\\D=2ft$

Given in the question $\frac{dv}{dt} =3ft^3/min$

thus when we substitute the values we get

$\frac{dD}{dt} =\frac{2}{\pi *2^2} (3)\\\frac{dD}{dt}=\frac{3}{2\pi } ft/min$

Learn more about the differentiation here:

brainly.com/question/28046488

#SPJ4

3 0

2 years ago

Help please. r/5 - 6 = -1 A) r = 1 B) r = 5 C) r = 10 D) r = 25

statuscvo [17]

Hello :),

$\frac{r}{5}-6=-1 \\ \\ \frac{r}{5} =-1+6=5 \\ \\ r=5*5=25$ .

5 0

3 years ago