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Marina CMI [18]
3 years ago
9

Please help. Don’t answer unless you’re 100% sure.

Mathematics
1 answer:
zavuch27 [327]3 years ago
6 0

Answer:

A- mercury and helium

b- 1034.86

Step-by-step explanation:

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Y=2x-5 solve for x show all your steps
irakobra [83]

Hi there!

Here are all the steps into solving this equation :

y = 2x - 5

Add 5 on each side of the equation

y + 5 = 2x

Divide each side of the equation by 2

\frac{y+5}{2} = x

Divide 5 by 2

\frac{y}{2} + 2.5 = x


There you go! I really hope this helped, if there's anything just let me know! :)

7 0
3 years ago
PLEASE HELP! First one gets brainliest!
Kitty [74]

Answer:

s = ∛756

Step-by-step explanation:

The volume of a cube is found by V = s³. To solve for the side of a cube with a specific volume, we use inverse operations to find it. s = ∛V. If the volume is 756 then the s = ∛756.

3 0
3 years ago
PLS HELP ME ASAP FOR 39 (SHOW WORK!) + LOTS OF POINTS!! *CORRECT ANSWER ONLY!*
Nady [450]
The straight line ON has the following equation :
(x - 18)/(x - 0) = (y - 12)/(y - 0)
Where (18,12) are coordinates of N and (0,0) are coordinates of O.
x - 18/x = y - 12/y
-18y = - 12x
y =12x/18 - - - - - (a)

The coordinates satisfy equation (a) are (7.5, 5)

Therefore D is the correct answer.

Good luck
7 0
3 years ago
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An expression that uses variables to state a rule is a ______
nikdorinn [45]

<u>Formula</u>

<em>An expression that uses variables to state a rule is a </em><u><em>formula</em></u>

<h2>Explanation:</h2>

An expression that uses variables to state a rule is a formula. It's important to know that formulas uses the equals sign (=) and includes two or more variables. Formulas gives us information that we express symbolically. For example, the well known formula for the volume of a sphere is defined as:

V=\frac{4}{3} \pi r^3 \\ \\ \\ Where: \\ \\ V:Volume \ of \ the \ sphere \\ \\ r:Radius \ of \ the \ sphere

So in this formula we have a relationship between the volume of a sphere and its radius, so if we have information about the radius of it we can easily calculate the volume of it.

<h2>Learn more:</h2>

Volume of prism: brainly.com/question/12501166

#LearnWithBrainly

7 0
3 years ago
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What ratios are equivalent to 1:7
lesya692 [45]
2:14 3:21 etc. all you have to do is for every 1 you add to the front number add 7 more to the second number
3 0
3 years ago
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