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stich3 [128]
3 years ago
10

Write an equivalent expression for 4(2x+5

Mathematics
2 answers:
Verizon [17]3 years ago
8 0
4(2x +5) = (8x + 20) 

8x =20 is an equivalent expression
 

lord [1]3 years ago
4 0

Answer:

the equivalent expression would be 8x+20.

Hope this helps!

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Inage of triangle after 90 degree rotation
Bad White [126]
I would say a cause they have the same curves
5 0
2 years ago
Which expression is not a perfect square trinomial?
puteri [66]

Answer:

Remember that a perfect square trinomial can be factored into the form (a+b)^2

or (a-b)^2

Examples:

(x+2)(x+2) is a perfect sq trinomial --> x^2+4x+4

(x-3)(x-3) is a perfect sq trinomial --> x^2-6x+9

(x+2)(x-3) is not a perfect square trinomial because its not in the form (a+b)^2 or (a-b)^2

Now to answer your question,

for the first one, x^2-16x-64, you cannot factor it so it is not a perfect square trinomial

for the second one, 4x^2 + 12x + 9, you can factor that into (2x+3)(2x+3) = (2x+3)^2 so this is a perfect square trinomial

for the third one, x^2+20x+100 can be factored into (x+10)(x+10) so this is also a perfect square trinomial

for the fourth one, x^2+4x+16 cannot be factored so this is not a perfect square trinomial

Therefore, your answer is choices 2 and 3

Read more on Brainly.com - brainly.com/question/10522355#readmore

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
-7x-3x+2=-8x-2 can you please show your work how
iVinArrow [24]

Answer:

x = 2

Step-by-step explanation:

Given

- 7x - 3x + 2 = - 8x - 2 ← simplify left side

- 10x + 2 = - 8x - 2 ( add 8x to both sides )

- 2x + 2 = - 2 ( subtract 2 from both sides )

- 2x = - 4 ( divide both sides by - 2 )

x = 2

8 0
3 years ago
Please help me! where are the black dots located?!
ioda

the bottom square: -6,-5

the top square: -2,1

4 0
3 years ago
Read 2 more answers
In quadrilateral ABCD what is m
sineoko [7]

Answer:

B.99°

Step-by-step explanation:

105°+ 66°+90°+ angle c=360°

angle c= 360° - 261

=99°

8 0
2 years ago
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