3 years ago

Can someone help, me

Mathematics

2 answers:

Radda [10]3 years ago

8 0

The answer to #5 is 33.

Lunna [17]3 years ago

5 0

$396 \div1 2$

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Fill in the blank with the correct number.

White raven [17]

Step-by-step explanation:

I think both 3 and 9

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2 years ago

Find the flow rate through a tube of radius 6 cm, assuming that the velocity of fluid particles at a distance r cm from the cent

vaieri [72.5K]

Answer:

791.68 cm/s

Step-by-step explanation:

The volume flow rate can be interpreted as the integral of fluid velocity over area

$\dot{V} = \int\limits^6_0 {v(r) 2\pi r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {(25-r^2)r} \, dr\\\dot{V} = 2\pi\int\limits^6_0 {25r-r^3} \, dr\\\\\dot{V} = 2\pi[12.5r^2 - r^4/4]_0^6\\\dot{V} = 2\pi(12.5*6^2 - 6^4/4 - 12.5*0 - 0)\\\dot{V} = 2\pi*126 = 791.68 cm/s$

7 0

3 years ago

Help .............

NARA [144]

What kinda of math is this so i can answer..

5 0

3 years ago

Write the standard form of the line that passes through the point (1,5) and is parallel to the x -axis. Include your work in you

scoray [572]

Answer:

y = 5

Step-by-step explanation:

A line parallel to the x- axis has equation

y = c

Where c is the value of the y- coordinates the line passes through

The line passes through (1, 5) with y- coordinate of 5, thus

y = 5 ← equation of line

7 0

3 years ago

Can u pls help me with this question asap

Zinaida [17]

Answer:

3.5/1 (or just 3.5)

Step-by-step explanation:

If y = a/n, then the constant proportionality is 3.5/1 or 7/2

Think of this as "rise over run" (we are basically finding the slope)

7 0

2 years ago

Read 2 more answers