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2 years ago

Which triangle is a rotation of triangle 3? Δ1 Δ2 Δ3 Δ4

Mathematics

1 answer:

nikdorinn [45]2 years ago

6 0

Answer:

Step-by-step explanation:

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Solve 4/x-4=x/x-4-4/3 for x and determine if the solution is extraneous or not

4vir4ik [10]

<u>Answer:</u>

x = 4 (extraneous solution)

<u>Step-by-step explanation:</u>

$\frac { 4 } { x - 4 } = \frac { x } { x - 4 } - \frac { 4 } { 3 } \\ \frac { 4 } { x - 4 } - \frac { x } { x - 4 } = - \frac { 4 } { 3 } \\ \frac { 4 - x } { x - 4 } = - \frac { 4 } { 3 } \\ 3 ( 4 - x ) = - 4 ( x - 4 ) \\ 1 2 - 3 x = - 4 x + 1 6 \\ 4 x - 3 x = 1 6 - 1 2 \\ x = 4 \\$

This solution is extraneous. Reason being that even if it can be solved algebraically, it is still not a valid solution because if we substitute back $x=4$ , we will get two fractions with zero denominator which would be undefined.

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3 years ago

Hannah read 8 books in 16 months. What was her rate of reading in books per month?

MrRa [10]

Half a book each month!!! have a good day!

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3 years ago

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Convert 0.25 to a fraction in its simplest form

erik [133]

Answer: 1/4 is the answer

Step-by-step explanation: it is 1/4 because 25/100 = 1/4

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3 years ago

5. What is the solution of |3x-3|_<18?

Mrrafil [7]

Answer : D

WORK...
$|3x-3| \leq 18
$

PART 1:
$3x-3 \leq 18
 add 3 on both sides... 3x \leq 21 divide by 3 on both sides... x \leq 7$

PART 2:
$3x-3 \geq -18 add 3 on both sides... 3x \geq -15
 divide 3 on both sides... x \geq -5$

plug both answers together..
$-5 \leq x \leq 7$

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3 years ago

The ratio of boys to girls is 7:12. If there are 76 children how many are girls?

LuckyWell [14K]

Answer:

Step-by-step explanation:

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4 years ago

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