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2 years ago

If AB=x+4, BC=2x-10, and AC=2x+1, then find the value for AC.

1 answer:

8 0

If AB and BC are equal then AC should be 29

How did I get this?
x+4=2x-10
14=x

Plug it in
AC= 2(14)+1
AC=28+1
AC=29

KEEP IN MIND THIS WILL MOSTLY LIKELY ONLY WORK IF IT SAYS AB AND BC ARE EQUAL

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3 years ago

Are the following numbers rational or irrational? 6. a) 14/20 b) 5.243 c) 0.25255255525555255555 ...

kozerog [31]

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Step-by-step explanation:

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3 years ago

Yara multiplies and divides a certain number by the same

Butoxors [25]

For this case we have to:

x: Represents the unknown number

y: Represents the exponent of base 10

So, considering a system of equations we have:

$x * 10 ^ y = 40,000\\\frac {x} {10 ^ y} = 0.000004$

From the first equation we have:

$10 ^ y = \frac {40,000} {x}$

Substituting in the second equation:

$\frac {x} {\frac {40,000} {x}} = 0.000004\\\frac {x ^ 2} {40,000} = 0.000004\\x ^ 2 = 40,000 * 0.000004\\x ^ 2 = 0.16\\x = \pm \sqrt {0.16}$

We choose the positive value:

$x = 0.4$

So, the number is 0.4.

So:

$10 ^ y = \frac {40,000} {0.4}\\10 ^ y = 100,000\\y = 5$

Thus, the exponent is 5.

Answer:

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3 years ago

7/8 divided by 11/12<br><br> Answer has to be a fraction.<br> Include steps if possible.

andrew-mc [135]

7/8 / 11/12. First get the reciprocal of 11/12 (which is 12/11). Then multiply by the reciprocal. 7/8 * 12/11 = 84/88 don't forget to simplify 21/22

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3 years ago

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Svetradugi [14.3K]

Step-by-step explanation:

5. 56÷4 = 14

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Hope this answer helps you!

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2 years ago

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