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11111nata11111 [884]
3 years ago
9

Which value must be added to the expression x2 + x to make it a perfect-square trinomial? One-fourth One-half 1 4

Mathematics
2 answers:
kaheart [24]3 years ago
5 0

Answer:

a. ¼

<em>(Below is the Screenshot on EdgeCourseware)</em>

SVEN [57.7K]3 years ago
3 0

Answer:

\frac{1}{4}

Step-by-step explanation:

Given

x² + x

To complete the square

add ( half the coefficient of the x- term )² to x² + x

x² + 2(\frac{1}{2} )x + (\frac{1}{2} )² = x² + x + \frac{1}{4}

= (x + \frac{1}{2} )² ← perfect square

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Multiplying a number by 3 is equal to sum of the number and 5.
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Answer:

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Step-by-step explanation:

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2 years ago
15/40 in lowest term I need it so bad now
Vesnalui [34]

In order to reduce ANY fraction to lowest terms, find any common factors
of the numerator and denominator, and divide them both by it.  If they still
have a common factor, then divide them by it again.  Eventually, they won't
have any common factor except ' 1 ', and then you'll know that the fraction is
in lowest terms.

Do  15  and  40  have any common factors ?
Let's see . . .

The factors of  15  are  1,  3,  <em>5</em>, and  15 .
The factors of  40  are  1,  2,  4,<em>  5</em>,  8,  10,  20, and  40 .

Ah hah !  Do you see that ' <em>5</em> ' on both lists ?  That's a common factor.

So  15/40  is NOT in lowest terms.

Divide the numerator and denominator both by  5 :

       15 / 40  =<em>  3 / 8</em>

3  and  8  don't have any common factor except ' 1 '. 
So  3/8  is the same number as  15/40, but in lowest terms.


5 0
3 years ago
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djyliett [7]

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Step-by-step explanation:

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3 years ago
Which expression has the fewest number of significant figures
Brums [2.3K]

Answer:

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Step-by-step explanation:

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