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erastova [34]
3 years ago
15

Suppose y varies directly with x. Write a direct variation equation that relates x and y. Then find the value of y when x=12

Mathematics
1 answer:
kati45 [8]3 years ago
7 0
So x= 3, y= 7

3/7 = 12/21

Which number times 3 is equal 12
3(4) = 12
So 7(4) = 28

X= 12 , y= 28
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11) Specific resistance is also called ? and is abbreviated with the capital letter K or the Greek letter ρ (rho).
Nuetrik [128]

Answer:

Resistivity

Step-by-step explanation:

Resistivity : It is a fundamental property of a material that measures how strongly a particular material opposes the flow of electric current. It is also known as specific resistance.

  • A low resistivity indicates a material that easily allows the flow of electric current.
  • Resistivity is commonly represented by the Greek letter ρ (rho) or abbreviated with a a capital letter K. The SI unit of electrical resistivity is the ohm-metre (Ω⋅m).

Hence, the correct answer for the blank is Resistivity.


8 0
3 years ago
Can someone answer this?
Elina [12.6K]
<h3>Answer:  a = 100</h3>

=============================================================

Explanation:

There are n = 7 sides to this polygon (so it's a heptagon)

The interior angles add up to 180(n-2) = 180*(7-2) = 900 degrees.

So that means,

69+284+62+62+242+81+a = 900

800+a = 900

a = 900-800

a = 100

6 0
3 years ago
The box plots below show the average daily temperatures in January and December for a U.S.
Marysya12 [62]

Answer:

The answer is C

Step-by-step explanation:

Took the test!

3 0
3 years ago
Calculate the surface area of an open cuboid which is 12 cm long,8cm wide,6cm high​
Vsevolod [243]

Answer:

432 cm²

Step-by-step explanation:

To find the surface area of a cuboid, there is a formula.

2lw+2lh+2hw

Length is l, height is h, and width is w.

2(12)(8)+2(12)(6)+2(6)(8)

Multiply all the terms.

336+96

Add both the terms.

= 432

The surface area of the open cuboid is 432cm².

6 0
3 years ago
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Aleonysh [2.5K]
I believe the answer is 48 ... hope this helps
5 0
3 years ago
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