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Delvig [45]
2 years ago
14

2(3x - 7) + 4(3x + 2) = 6(5x +9) + 3 x = -21 x = -2 x = -21/4 x = -4

Mathematics
2 answers:
BaLLatris [955]2 years ago
7 0

Answer:

x = -21/4

Step-by-step explanation:

Ray Of Light [21]2 years ago
4 0

Answer:

x = -21/4

Step-by-step explanation:

Decimal form: -5.25

Mixed Number Form: -5 1/4

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Which of the following is not a Pythagorean triple?
Ierofanga [76]

Answer:

  (7, 24, 26)

Step-by-step explanation:

A Pythagorean triple must have an odd number of even numbers. The triple (7, 24, 26) is not a Pythagorean triple.

_____

<em>Additional comment</em>

For an odd integer n, a triple can be formed as ...

  (n, (n²-1)/2, (n²+1)/2)

That is, the following will be Pythagorean triples.

  • (3, 4, 5)
  • (5, 12, 13)
  • (7, 24, 25)
  • (9, 40, 41)
  • (11, 60, 61)

Another series involves even numbers and numbers separated by 2:

  (2n, n²-1, n²+1)

  • (8, 15, 17)
  • (12, 35, 37)
  • (16, 63, 65)

In this list, if n is not a multiple of 2, the triple will be a multiple of one from the odd-number series.

It is a good idea to remember a few of these, as they tend to show up in Algebra, Geometry, and Trigonometry problems.

8 0
2 years ago
Alan can type 80 words in two
Sonbull [250]

Answer:

2400 words

Step-by-step explanation:

80 = 2 min

60min ÷ 2min = 30min

30 × 80 = 2400 words

3 0
3 years ago
Read 2 more answers
How to write out 14x(36-12 devised by 4
Vinvika [58]
My answer would be -84
6 0
3 years ago
Write 3.25 x 10^4 as an ordinary number.
MArishka [77]

Answer:

see below

Step-by-step explanation:

i'm guessing u must be from UK.... in the US "standard form" is known as "Scientific Notation"

Write 3.25 x 10^4 as an ordinary number: 32 500

Write 6.04 x 10^-3 as an ordinary number:  0.00604

Write 2 400 000 in standard form  : 2.4 x 10^6

Write 0.00147 in standard form: 1.47 X 10^-3

6 0
3 years ago
Read 2 more answers
To prove ABC= ADC, To prove which triangle postulate could you use?
Kay [80]

Answer:

ASA

Step-by-step explanation:

..................

6 0
3 years ago
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