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Firdavs [7]
3 years ago
9

Which ratios form a proportion?

Mathematics
2 answers:
wlad13 [49]3 years ago
4 0
Only the first ratio
Jobisdone [24]3 years ago
4 0
1. 4/10=2/5 , 10/25=2/5 (simplify)
2. 4/11 , 6/13 (cannot be simplified)
3. 4/9 , 9/4=2 1/4
4. 3/5 , 9/25=3/5 (simplify)
The answers are 1 and 4.
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lys-0071 [83]

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7 0
2 years ago
What is the domain of the function <br> y=3√6x+42 A. x ≥ 0<br> B. x ≤ 7<br> C. x ≥ –6<br> D. x ≥ –7
soldi70 [24.7K]

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Step-by-step explanation:  We are given to find the domain of the following function:

y=3\sqrt{6x+42}~~~~~~~~~~~~~~~~~~~~~~~~~(i)

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That is, for the function (i), the domain will be given by all those values of x for which 3\sqrt{6x+42} is real.

Now, the values of y will be real only if the expression under square root is greater than or equal to 0.

Therefore, the domain of function (i) is

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Thus, the domain of the given function is x\geq -7.

Option (D) is CORRECT.

7 0
4 years ago
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