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Charra [1.4K]
3 years ago
9

How do I solve for x ?

Mathematics
1 answer:
sveticcg [70]3 years ago
5 0
  • <em>Answer:</em>

<em>x = 4</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there ! </em>

<em>use </em><em><u>Thales theorem</u></em>

<em>x/(x + 8) = 4/12</em>

<em>12x = 4x + 32</em>

<em>12x - 4x = 32</em>

<em>8x = 32</em>

<em>x = 32 : 4</em>

<em>x = 4</em>

<em />

<em>4/(8 + 4) = 4/12</em>

<em>4/12 = 4/12 (true)</em>

<em />

<em>Good luck !</em>

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Please please help, need this done by 1:45!!!!
GarryVolchara [31]

Answer:

option B. MB/AM=NC/AN

Step-by-step explanation:

we know that

The <u><em>Triangle Proportionality Theorem</em></u> states that if a line is parallel to one side of a triangle and it intersects the other two sides, then it divides those sides proportionally

In this problem

MN is parallel to BC

MN intersect AC and divide into AN and NC

MN intersect AB and divide into AM and MB

so

Applying the Triangle Proportionality Theorem

\frac{AN}{NC}=\frac{AM}{MB}

Rewrite

\frac{MB}{AM}=\frac{NC}{AN}

7 0
2 years ago
X^2-2x+15 in quadratic equation​
Arturiano [62]

Answer:

No solution

Step-by-step explanation:

There is not a real nor an imaginary solution to this equation. You can use a radical calculator to verify.

3 0
2 years ago
Factor x2+4x+3.
Alexxx [7]

Answer:

c. (x +3)(x + 1)

Step-by-step explanation:

Factoring an equation is a way of expressing an equation as the product of other linear expressions. The following expression,

x^2 +4x +3

Can be represented as the product of the following,

(x+3)(x+1)

To check this, one can distribute, one of the expressions over the other, then simplify, the result should be the starting expression,

(x+3)(x+1)\\

Distribute,

(x)(x)+(1)(x)+(3)(x)+(3)(1)

Simplify,

x^2 +x +3x + 3\\

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8 0
3 years ago
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anastassius [24]

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It can help to resolve the numbers that are only indicated as to value.

√13 ≈ 3.606

2√10 ≈ 6.325

_____

Your comparisons can be ...

2 + 3 = 5 > 3.606 . . . is a triangle

5 + 5 = 10 > 6.325 . . . . . . is a triangle

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8 0
3 years ago
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telo118 [61]
It's a reflection across the x axis, so the y intercept won't change (12)

f (x) = 3x + 12
 |
\/
g(x) = -3x + 12

I MAY BE WRONG IM ONLY 80% SURE
8 0
2 years ago
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