2 years ago

Please help me answer this question

Mathematics

1 answer:

sergejj [24]2 years ago

6 0

Answer:

72km

Step-by-step explanation:

alex : tomos : annabelle = 2 : 3 : 4

if tomos drove 24km

tomos ratio is 3

so 3 --> 24

<u>total ratios --> 2 + 3 + 4 = 9</u>

so total journey is 9 --> 9 * 8 = 72km

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4 years ago

Which equation are true for x=-2 and x=2 check all that apply

ki77a [65]

1 it is true
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2 it's not true
${x}^{2} = - 4$
3 it's not true
$3 {x}^{2} + 12 = 0 \\ 3 {x}^{2} = - 12 \\ {x}^{2} = \frac{ - 12}{3} = - 4 \\$
4 it's true
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5- it's true
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