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sashaice [31]
3 years ago
12

Which is the coefficient of the expression - 3a²c-7? -7 -3 2 3

Mathematics
2 answers:
wariber [46]3 years ago
4 0

Answer:

-3

Step-by-step explanation:

:)

dlinn [17]3 years ago
3 0

Answer:

-3

Step-by-step explanation:

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80.0000*10^4

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-8x - 11x<br> I really need help
Tema [17]

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Step-by-step explanation: In this problem, we're asked to simplify the expression.

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4 0
3 years ago
Please answer all 3 questions
blsea [12.9K]

Answer:

  • x = 30°
  • DB = 26
  • AD = BC = AB = DC = 7

Step-by-step explanation:

  • <em>Diagonals of a square are congruent and perpendicular and bisect each other</em>
<h3>Q4</h3>

m∠AEB = 3x

m∠AEB = 90°

  • 3x = 90° ⇒ x = 30°
<h3>Q5</h3>

AE = 3x - 2

EC = 2x + 3

  • AE = EC
  • 3x - 2 = 2x + 3
  • 3x - 2x = 3 + 2
  • x = 5

DB = EC = 2(AE) = 2(3*5 - 2) = 2(13) = 26

<h3>Q6</h3>

<u>AD and BC are the sides, which are equal</u>

  • 2x - 1 = 5x - 13
  • 5x - 2x = 13 - 1
  • 3x = 12
  • x = 4

AD = BC = AB = DC =  2*4 - 1 = 7

7 0
3 years ago
Read 2 more answers
Consider the following system of equations.
Sidana [21]
Y = 6x - 6  therefore   y - 6x = -6
y - 6x = 5 
so:
-6 ≠ 5
There is no solution to this system.
==========================
\left \{ {{y=6x-6} \atop {y-6x=5}} \right.  \\  \left \{ {{6x-y=6} \atop {-6x+y=5 }} \right.  \\ 0 \neq 11
6 0
3 years ago
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