3 years ago

????????????????????????????

Mathematics

2 answers:

ololo11 [35]3 years ago

5 0

D

I had this for homework and got an 100 on it so trust me its D

Svetlanka [38]3 years ago

3 0

The answer to this is D
It took me longer to answer because i had to convert 2/3 into a decimal which is 0.66.
I hope i helped!

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Z-2.3 = 0.46 what is z<br> Please help me

ddd [48]

Answer:

Z = 2.76

Step-by-step explanation:

Firstly you must realise that Z - 2.3 = 0.46

Therfore this means you must 2.3 to 0.46 to get Z

2.3+0.46+2.76

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vodomira [7]

Answer:

x = $25.8^{o}$ and y = $51.4^{o}$

Step-by-step explanation:

Known that he sum of angles on a straight line is $180^{o}$ . From the diagram;

2y + x + y = $180^{o}$

x + 3y = $180^{o}$ ................ 1

Also,

2x + x + 2y = $180^{o}$

3x + 2y = $180^{o}$ .............. 2

Using the elimination method, multiply equation 1 by 3 and equation 2 by 1

3x + 9y = 540 ............ 3

3x + 2y = $180^{o}$ ............. 4

7y = 360

y = $\frac{360}{7}$

y = $51.4^{o}$

substitute the value of y in equation 1,

x + 3y = $180^{o}$

x + 3(51.4) = $180^{o}$

x + 154.2 = $180^{o}$

x = $180^{o}$ - 154.2

x = $25.8^{o}$

Thus, x = $25.8^{o}$ and y = $51.4^{o}$

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Is (-2,4) a solution of the graphed inequality?

k0ka [10]

we need the equation or graph to figure that out

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C. Theorems are sometimes false.

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