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slavikrds [6]
3 years ago
15

A number tripled then increased by -2 is thirteen pls I need the equation, not the answer

Mathematics
1 answer:
lesantik [10]3 years ago
5 0

Answer:

3n - 2 = 13

Step-by-step explanation:

A number tripled would represent a number times 3, so it would be "3n"

If it is increased by -2, then you would be adding -2, or subtracting by 2

lastly, you put " = 13" because "is" in an equation also means "equals"

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What is another way to summarize this proof?
Makovka662 [10]

Another way to summarize this proof is to say vertical angles are congruent.

<h3>Vertical angles</h3>

Lines are shortest distance between two point and angles are forned from the intersection of two lines.

From the given figure, they are trying to prove that the angles ANR and VNE are equal. Since these angles are formed at the point of intersection, hence another way to summarize this proof is to say vertical angles are congruent.

Learn more on vertical angles here: brainly.com/question/14362353

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5 0
2 years ago
please help me, I'm stuck on the second one. ​Also for i) i got angle ABD because angles in a semicircle measures 90 degree and
True [87]

Answer:

i)

  • <em>DA is diameter and AX is tangent to circle</em>

<u>Your answer is correct</u>

  • m∠ABD = 90°, m∠DAX = 90°

ii)

<u>Given m∠BAX = 42° and ∠DAB is complementary with BAX ⇒ </u>

  • m∠DAB = 90° - 42° = 48°

<u>DC = BC ⇒ intercepted arcs are same ⇒ </u>

  • ∠CDB = ∠BDC

<u>mDC = mCB ⇒ mDCB = ∠DAB = 48° ⇒ </u>

  • m∠CDB = m∠BDC = 1/2*48 = 24°

iii)

∠CBA

<u>∠CBA is supplementary with ∠ADC as opposite angles of cyclic quadrilateral (∠ADB = ∠BAX = 42°)</u>

  • m∠ADC = m∠ADB  + m∠CDB = 42° + 24° = 68°
  • m∠CBA = 180° - m∠ADC = 180° - 68° = 112°

∠BAE

EA║CB and AB is transversal ⇒ CBA and BAE are supplementary angles:

  • m∠BAE = 180° - 112° = 68°

∠DCE

  • ∠DCE = ∠DCB - ∠BCE
  • m∠DCB = 180° - m∠DAB = 180° - 48° = 132°
  • m∠BCE = 180° - m∠BAE = 180° - 68° = 112°
  • ∠DCE = 132° - 112° = 20°
5 0
3 years ago
At the start of the day there was 129.75 in the till one hour later there is 145.40 how much did the shop take in a hour
777dan777 [17]
At the start of the day, there was £129.75. Later, they made more money, so the <span>£145.50. To find the amount of change, you just need to deduct the number 129.75 from 145.50.

145.50 - 129.75 = 15.75

The shop made </span><span>£15.75 in one hour.</span>
8 0
4 years ago
Which of the following values of x satisfy the equation begin equation . . . 2 times x raised to the second power, plus 7 times
Oxana [17]

The values of the x that satisfies the equation 2x² + 7x +3 = 0  is -1/2 and -3 .

<h3>What is a polynomial function?</h3>

A polynomial function is a function that applies only integer dominions or only positive integer powers of a value in an equation such as the quadratic equation, cubic equation, etc. ax+b is a polynomial.

2x² + 7x +3 = 0
2x² + 6x + x + 3 = 0
2x (x+3) + 1(x + 3) = 0
(2x + 1)(x + 3) = 0
2x+ 1 = 0  ;  x + 3 = 0
x = -1 / 2 ;  x  = -3

Thus, the values of the x that satisfies the equation 2x² + 7x +3 = 0  is -1/2 and -3 .

Learn more about polynomial function here:

brainly.com/question/12976257
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3 0
2 years ago
I NEED MENNTAL HAELP
vekshin1

Answer:

Ummm Lilly Are you the one that I was jus talkin too

Step-by-step explanation:

6 0
3 years ago
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