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lapo4ka [179]
3 years ago
12

Given that x(3x+1) - 2(3x-5) = 3x^2 + ax + 10 find the value of a

Mathematics
2 answers:
algol133 years ago
7 0

Answer:

a= -5

Step-by-step explanation:

slavikrds [6]3 years ago
7 0

Answer:

a = -5.

Step-by-step explanation:

x(3x+1) - 2(3x-5)

= 3x^2 + x - 6x + 10

= 3x^2 - 5x + 10

Comparing this term by term with

3x^2 + ax + 10 we see a = -5.

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Why can you use cross products to solve the proportion 18/5 equals x/100 for x?
blondinia [14]
18    x
--- = ----
5      100

18×100 = 5×x

1800 = 5x
-------    ----
   5          5

360 = x
Hope this helps!!!
5 0
4 years ago
Find the measures of an interior angle and an exterior angle of a regular hexagon. The measure of an interior angle is 120. The
Tom [10]

Answer:

see explanation

Step-by-step explanation:

Since a hexagon has 6 interior angles and the measure of one is 120°, then

sum of interior angles = 6 × 120° = 720°

exterior angle = 180° - interior angle = 180° - 120° = 60°



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3 years ago
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Step-by-step explanation: I took the test.

7 0
4 years ago
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Answer:

it's answer is y + 185 = 250; y = 65

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6 0
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