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Dmitry_Shevchenko [17]
3 years ago
11

2x - 30 = 9x - 128 Find the value of x

Mathematics
2 answers:
zvonat [6]3 years ago
7 0

Answer:

2x-30 =9x-128

-30+128= 9x-2x

98= 7x

x= 98/7

14

Juli2301 [7.4K]3 years ago
3 0

Answer:

x= 14

Explanation is in the picture below :)

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What value for c will make the expression a perfect square trinomial? x2 – 7x + c
ANEK [815]

Answer:

Final answer is \frac{49}{4}.

Step-by-step explanation:

Given expression is x^2-7x+c.

Now we need to find about what value for c will make the given expression x^2-7x+c, a perfect square trinominal.

Coefficient of middle term that contains x, in x^2-7x+c -7.

Take half of that so we get -\frac{7}{2}.

Then take square of the half value.

We get \left(-\frac{7}{2}\right)^2=\frac{49}{4}.

We add the square value to make perfect square trinomial.

Hence final answer is \frac{49}{4}.

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3 years ago
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3 years ago
Multiply 2/3 x 4 . Write in simplest form. Does the first factor increase or decrease?
jolli1 [7]
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A rectangle has a height of 4 and a width of x2 + 3x + 2.
otez555 [7]
<h3><u>Given</u>:</h3>
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<h3><u>To find</u>:</h3>
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<h3><u>Solution</u>:</h3>

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