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Mandarinka [93]
3 years ago
8

Simplify and determine the coefficient of (-2/5x) (5y) (-2x)

Mathematics
2 answers:
slamgirl [31]3 years ago
7 0
The answer is 4 x^2y. <em> I cannot explain to you how I know I'm right. I'm the type of person who HAS to do the work in their head . I am a very experienced person in any Mathematics area. I am NOT saying I'm an expert , but it is one of my strongest subjects . </em>

AfilCa [17]3 years ago
4 0

Answer:

4y

Step-by-step explanation:

Parenthesis means they are multiplied , so writing all the top(numerator) values in top and bottom(denominator) values in bottom we get

\frac{-2*5y*(-2x)}{5x}

simplify by cancelling the common factor 5 and x from top and bottom

we get

4y

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If (h + h) · (h. h) = 16, find the value of h.<br> — HELP ME PLEASEEEE
yKpoI14uk [10]

Answer:

h = 2

Step-by-step explanation:

I'm assuming your periods are multiplication signs.

(h + h) X (h X h) = 16

When adding two variables like the first set of parentheses, it would become 2h.  When multiplying two like variables, you add the exponents.  h is the same as writing h¹.  So h¹ x h¹   gives you the answer of h².

So now your equation would look like:

2h  X  h²  = 16

As above, when you multiply two like variables you would add the exponents.  Also if any number are in front of the variable you would multiply those numbers.  So you have 2h¹ x 1h² and that would be 2h³.  If it had been

2h¹ x 2h², your answer would have been 4h³.

But so far you have 2h¹ x 1h² = 16

2h³ = 16

Dividing both sides by 2 you get

h³ = 8

To find h you have to take the cubed root of 8.  What number multiplied by itself 3 times gives you 8?    2 x 2 x 2 = 8     2 x 2 = 4 and x 2 = 8.

h = 2

If you put this into the original equation you have:

(2 + 2) x ( 2 x 2) = 16

 ( 4 ) x ( 4 ) = 16

7 0
2 years ago
Are the triangles congruent? Why or why not?
Annette [7]
It would be C. 

In the second triangle if you add the angles 58+33 to angle C 88, you get 179, not 180. So the triangle dont share the same angles meaning they arent congruent.
6 0
3 years ago
Read 2 more answers
What is the slope of the line that passes through the points (-6, 8)and (-9, 7)?
Effectus [21]

Answer:

m= 1/3

Step-by-step explanation:

m = \frac{y2 - y1}{x2 - x1}

   = \frac{7 - 8}{-9 - (-6)} = \frac{-1}{-9 + 6} = \frac{-1}{-3} = \frac{1}{3}

7 0
2 years ago
Twelve times a number x, plus a second number y.
faust18 [17]

Answer:

12x+y

Step-by-step explanation:

12 times a number x

12x

Plus y

12x+y

3 0
3 years ago
100 POINTS!!!
vladimir2022 [97]
7.76 is your answer
3 0
2 years ago
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