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AnnyKZ [126]
3 years ago
8

What value in the place of the question mark makes the polynomial a perfect square trinomial

Mathematics
2 answers:
storchak [24]3 years ago
8 0

Check this attachment

yan [13]3 years ago
5 0

Answer:

9. 225

10. 14

Step-by-step explanation:

9.

Divide the coefficient of x by 2 and square it.

30/2 = 15

15^2 = 225

Answer: 225

10.

When you divide the middle coefficient by 2 and square it, you get the constant term (the third term). Here, the constant term is 49. 49 is the square of 7. Double 7 to get 14.

Answer: 14

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Solve for g<br> 2h - 49 = 12
frez [133]

Answer: h = 30.5

Step-by-step explanation

2h - 49 = 12

     +49 +49

Add 49 to both sides. Inverse operation

2h = 61

2h/2 = 61/2

Divide 2 to both sides to get answer. Inverse operation

h = 30.5

Check:

2(30.5) - 49 = 12

       61 - 49 = 12

               12 = 12

5 0
2 years ago
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What is the area of the figure?
Lynna [10]

Answer:

112 in^2

Step-by-step explanation:

10 x 10 = 100

4 x 6 / 2 = 12

112 inches squared

5 0
2 years ago
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2x - 10 = 20 pls help?
Anettt [7]

Answer:

x=15

Step-by-step explanation:

2x-10=20

2x-10+10=20+10

2x=30

2x/2 = 30/2

x=15

3 0
3 years ago
Please help me with this
rusak2 [61]

Answer: It would be the second answer that says SSS.

Step-by-step explanation: Side MK and MN are congruen. Side JN and JK are also congruen. Since both triangles share the line MJ, it’s congruent based on the reflexive property.

4 0
3 years ago
In circle O below, what is the measure of arc ED?
Serga [27]
Triangle FOD is an isosceles with base FD.
FD = 2 · 4 = 8
FD = CB
Arc CB = 56°
Arc ED = 1/2 Arc FD = 1/2 Arc CB
Arc ED = 56° : 2
Answer:
Arc ED = 28° 

5 0
2 years ago
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