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Taya2010 [7]
3 years ago
13

The slope of the line that passes through the points (6,9) and (11,12)

Mathematics
2 answers:
mamaluj [8]3 years ago
7 0

Answer:

slope = 3/5

Step-by-step explanation:

hichkok12 [17]3 years ago
7 0

Answer:

your slope is 3/5 :)

Step-by-step explanation:

hope it helped :))

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9( 2k + 3 ) + 2 = 11 ( k- y )
Mashcka [7]
9(2k+3)+2=11 (k-y) 
k=-11/7 y+ -29/7
8 0
3 years ago
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Brainly is a knowledge-sharing community where 350 million students and experts put their heads together to crack their toughest
ryzh [129]

Answer:

but many of them comes here to do time pass

5 0
3 years ago
A hollow metal sphere has 6 cm inner and 8cm outer radii. The surface charge densities on the exterior surface is +100 nC/m2 and
natulia [17]

Answer:

<h2>Outer Electric Field is 11250 N/C.</h2><h2>Inner Electric Field is -10000 N/C.</h2>

Step-by-step explanation:

First of all, we need to read carefully and analyse the problem. As you can see, is an electrical subject, and it's given surface charge densities and radius.

So, to calculate electric fields, we need to find the proper equation to do so: E=k\frac{q}{r^{2} }; as you can see, first we need to find the charges.

We can find all charges using the surface charge densities, because it has the next relation: p=\frac{q}{A}; which indicates that charge density is the amount of charge per area. But, there's a problem, we don't have areas, so we have to calculate them first with this relation: S=4\pi r^{2}; which gives us the surface of a sphere.

The inner surface: Si=4\pi (0.06m)^{2} = 0.04 m^{2}

The outer surface: S=4\pi (0.08m)^{2}=0.08m^{2}

Now we can calculate the charges,

Inner charge: Qi=pA=(-100\frac{nC}{m^{2} } )(0.04m^{2} )=-4nC

Outer charge: Qo=pA=100\frac{nC}{m^{2} } )(0.08m^{2} )=8nC

Then, we are able to calculate both fields:

Inner field: Ei=k\frac{Qi}{r^{2} }=9x10^{9} \frac{Nm^{2} }{C^{2} }\frac{-4x10^{-9} }{0.06m^{2} }=-10000\frac{N}{C}

Outer field:  Eo=k\frac{Qo}{r^{2} }=9x10^{9} \frac{Nm^{2} }{C^{2} }\frac{8x10^{-9} }{0.08m^{2} }=11250\frac{N}{C}

The directions that field have is opposite each other, the inner one has an inside direction, and the outer electric field has an outside direction.

3 0
3 years ago
5% of a number is 23​
kari74 [83]

Answer:

460

Step-by-step explanation:

5%(calculated %)of what number equals 23?

Answer is 460

I hope it's helpful!

4 0
2 years ago
Read 2 more answers
Seb bought 2 apples and 3 pears.
ryzh [129]
2a + 3p = 1.59

a = 0.24

Plug it in our equation:

2(0.24) + 3p = 1.59

Multiply:

0.48 + 3p = 1.59

Subtract 0.48 to both sides:

3p = 1.11

Divide 3 to both sides:

p = 0.37

So one pair costs <span>£0.37</span>
5 0
2 years ago
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