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3 years ago

Expand this please 2/9(9/4x-9)

Mathematics

1 answer:

telo118 [61]3 years ago

6 0

2/9(x)9/4 =18/36
1/2
2/9(x)-9
-18/9
-2
Answer:: y=1/2x-2

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Which table shows a proportional relationship between x and y?

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Answer:

Step-by-step explanation:

A proportional relationship is a relationship which crosses through the origin (0,0) and which has a proportional constant. We can determine this either by finding (0,0) where x=0 and y=0 in the table or by dividing y/x. None of the tables contain (0,0) so we will divide y by x. We are looking for a table which when each y is divided by its x we have the same constant appearing.

Table A

$\frac{12}{3} \neq \frac{15}{6} \neq \frac{18}{8} \neq \frac{20}{10}$

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Table B

$\frac{0.5}{1}=\frac{1}{2} =\frac{3.5}{7} =\frac{4}{8}$

These fractions are equal and each shows the numerator to be half of the denominator. This is proportional.

Table C

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Table D

$\frac{7}{2} \neq \frac{9}{3}\neq \frac{11}{4} \neq \frac{13}{5}$

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Answer:

37%

Step-by-step explanation:

Add up the percentages and subtract them by 1.00:

35% & 28% = 0.35 & 0.28
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Good luck! :)

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Answer:

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Step-by-step explanation:

Comment

BD is already given to you as bisected. AC must also be bisected. That means that 6x and 7x - 5 must the the same value. Then and only then will the figure be a parallelogram. (a four sided figure is a parallelogram if the 2 diagonals are bisected.

Equation

6x = 7x - 5 Subtract 6x from both sides

Solution

6x - 6x = 7x - 6x - 5 Simplify

0 = x - 5 Add 5 to both sides

5 = x - 5 + 5 Simplify

x = 5

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The answer is X=27 degrees

Steps-
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