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kompoz [17]
3 years ago
6

If AB= 18 and AC=3x+6, then what does x equal

Mathematics
1 answer:
Marianna [84]3 years ago
6 0
AB = AC
18 = 3x + 6
-6 -6
18-6 = 3x
12/3 = 3x/3
4 = x
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I have four factors 3 of my factors are 1,2,and 6 what is my fourth factor
Naddik [55]
12
2 multiplied by 6 is 12 and so 1 multiplied by something is 12
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7 0
4 years ago
Read 2 more answers
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vfiekz [6]

Step-by-step explanation:

Pythagoras' theorem for the smallest one :

c^2 = 4^2 + 6^2

c^2 = 16 + 36

c^{2} = 52

Pythagoras' theorem for the middle one :

b^{2} = 6^{2} + a^{2}

Pythagoras' theorem for the biggest one :

(4+a)^2 = c^2 + b^2

16 + 8a + a^2 = 52 + b^2

Using the formula before (for b^2) it becomes :

16 + 8a + a^2 = 52 + (6^2 + a^2)

16 + 8a + a^2 = 52 + 6^2 + a^2

16 + 8a = 52 + 6^2

16 + 8a = 52 + 36

16+8a = 88

8a = 88-16

8a = 72

a = \frac{72}{8}

a = 9

Verifying :

b^2 = 6^2 + a^2

b^2 = 36 + 81

b^2 = 117

b^{2} = 117

The biggest one :

(4+a)^2 = c^2 + b^2

(4+9)^2 = 52 + 117

13^2 = 169

True

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Answer:

Step-by-step explanation:

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