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In-s [12.5K]
3 years ago
14

What number makes the expressions equivalent? Enter your answer in the box.

Mathematics
1 answer:
pashok25 [27]3 years ago
7 0

– 0.7

Step-by-step explanation:

Given expression is  \frac{1}{2}(-1.4 m+0.4)

To simplify this expression \frac{1}{2}(-1.4 m+0.4)  we get equivalent expression.

Multiply and Divide the expression by two.

\Rightarrow\left(\frac{-1.4}{2} m+\frac{0.4}{2}\right)  

To simplify the expression again, we get,

⇒ (–0.7 m + 0.2)

So, we found the coefficient of m is –0.7.

The missing number is –0.7  

Hence, –0.7 makes the expression equivalent.

Therefore, \frac{1}{2}(-1.4 m+0.4)  = –0.7 m + 0.2.

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Points A(-2, 4), B(1, 3), C(4, -1) and D form a parallelogram. What are the coordinates of D?
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Let point A(-2,4)  = A (X1,Y1)
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To find X4 we have to use the formula:
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Now just plug in the numbers that correspond to the letters provided:
(1)-(-2)=(4)-(X4) ----> we don't know what X4 is yet, so we have to solve for it!
1+2=4-X4
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Therefore,
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---------------------------------------------------

m^2 -11m -60

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----------------------------------------------------

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