The mass of a gold atom is 3.29 x 10-22 grams. The mass of a helium-4 atom is

Mathematics

1 answer:

blondinia [14]3 years ago

7 0

Answer:

um, I checked the questions you asked and we have the same questions, I think we might be in the same school lol

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(7-3)x(9-2)= what I am stuck help me

natka813 [3]

7-3=4
9-2=7
4x7=28
Use PEMDAS for order of operations, it will save your life
Parenthesis Exponents Multiply Divide Add Subtract
Multiply and Divide and Add and Subtract can be switched around with each other, but multiply and divide always happens before add and subtract. The reason you add first here is because it is in the parenthesis.

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4 years ago

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Bas_tet [7]

7x+12+6x-2=-4
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3 years ago

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dimaraw [331]

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4 years ago

A line is perpendicular to y = -1/5x+1

natta225 [31]

Answer:

$y = 5\, x + 26$ .

Step-by-step explanation:

Start by finding the slope of the line perpendicular to $y = (-1/5)\, x + 1$ .

The slope of $y = (-1/5)\, x + 1$ is $(-1/5)$ .

In a plane, if two lines are perpendicular to one another, the product of their slopes would be $(-1)$ .

Let $m$ denote the slope of the line perpendicular to $y = (-1/5)\, x + 1$ . The expression $(-1/5)\, m$ would denote the product of the slopes of these two lines.

Since these two lines are perpendicular to one another, $(-1/5)\, m = -1$ . Solve for $m$ : $m = 5$ .

The $(-5,\, 1)$ is a point on the requested line. (That is, $x_{1} = -5$ and $y_{1} = 1$ .) The slope of that line is found to be $m = 5$ . The equation of that line in the point-slope form would be: