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Olenka [21]
3 years ago
12

Which of the following constants can be added to x2 - 3x to form a perfect square trinomial?

Mathematics
2 answers:
jeka57 [31]3 years ago
5 0

<em>Answer:</em>

<em>2 whole 1/4</em>

<em>Step-by-step explanation:</em>

<em>When forming a perfect square trinomial you need to "complete the square". </em>

<em>All of the steps to completing the square when solving an equation: </em>

<em>1.  The leading coefficient must be 1.  </em>

<em>2.  Divide b by 2. </em>

<em>3.  Square (b/2) </em>

<em>4.  Add (b/2)^2 to both sides to keep the polynomial balanced. </em>

<em>5.  You can now write the perfect square trinomial and solve. </em>

<em><u> </u></em>

x^2 - 3x  

-3/2

(-3/2)^2 = 9/4 = 2 1/4

hjlf3 years ago
5 0

Answer:

The answer is 2 1/4

Step-by-step explanation:

You are welcome.

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Brilliant_brown [7]
Y ≥ 2x-5
y-intercept is -5, from there go 2 up 1 over ( slope is rise over run)
greater than or equal so the line is connected
now find the shaded area by plugging in (0,0)
0 ≥2(0)-5
0 ≥-5 is correct so shade the area that to the left of the line, (the whole area that including (0,0))

y<-3x
y intercept is 0 so start from there and go down 3 right 1 (or go up 3 left 1)
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Place value of 2 in Decimal <br>137.5428
harina [27]

Answer:

0.002

Step-by-step explanation:

The explanation has been explained in the attached picture above.

6 0
2 years ago
PLEASE HELP!!!!! Suppose that there are two types of tickets to a show: advance and same-day. The combined cost of one advance t
Sveta_85 [38]

Answer:

The answer to your question is Advance = $35 and same-day = $40

Step-by-step explanation:

Advanced = a

Same-day = s

Equations

                       a +     s  = 75               ----- (I)

                  20a + 35s = 2100            ----- (II)

Process

1.- Solve the equations by elimination.

Multiply equation I by -20

                     -20a - 20s = -1500

                      20a + 35s = 2100

Simplify

                        0   + 15s = 600

Solve for s                  s = 600/15

                                    s = $ 40        

Substitute "s" in equation I to find "a"

                       a   +   40  = 75

Solve for a

                       a    = 75  - 40

                       a = 35

3 0
3 years ago
The difference between -7/9 and 4/9 is <br> A. -1/3<br> B. 1/3<br> C. -1 2/9<br> D. 1 2/9
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Step-by-step explanation:

To subtract fractions, find the LCD and then combine.

Exact Form:

−119

Decimal Form:

−1.¯2

Mixed Number Form:

−129

6 0
3 years ago
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