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3 years ago

Help!! I’ll mark you brainly

Mathematics

1 answer:

Elza [17]3 years ago

3 0

Answer:

Two points that satisfy include (-2,5) (0,0) (2,-5) (I know this is more than 2, but in case the (0,0) origin isn't allowed.

Step-by-step explanation:

This is 5x+2y=0

Screenie is the 5x+2y=0 btw

Hope this helps!

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A point at (4,6) is reflected across the x-axis.What is the y-coordinate of the reflected point?

iren [92.7K]

I believe the ansr would be (-6,-4) I say this becuase if it's positive on the y axis the X axis will be negative and if it's being reflected the coordinates will be backwards. If this answer is wrong I'm truly sorry, but I hope this helps!

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3 years ago

Please help me, its due today!!!

zlopas [31]

Answer:

$7$

Step-by-step explanation:

So we have the expression:

$|3x-1|$

And we want to evaluate it for x=-2.

So, substitute -2 for x:

$|3(-2)-1|$

Multiply:

$=|-6-1|$

Subtract:

$=|-7|$

The absolute value of a negative is positive. So:

$=7$

And we're done!

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3 years ago

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saul85 [17]

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3 years ago

Currently, the number of people entering a shopping mall is 109. It is estimated that the number of people entering the shopping

seropon [69]

Answer:

96 people.

Step-by-step explanation:

Exponential equation for a decreasing amount:

The exponential equation for a decreasing amount is given by:

$A(t) = A(0)(1-r)^t$

In which A(0) is the initial rate and r is the decay rate, as a decimal.

Currently, the number of people entering a shopping mall is 109.

This means that $A(0) = 109$

It is estimated that the number of people entering the shopping mall will decrease by 3% each hour.

This means that $r = 0.03$

$A(t) = A(0)(1-r)^t$

$A(t) = 109(1-0.03)^t$

$A(t) = 109(0.97)^t$

Find the total number of people entering the shopping mall at the end of 4 hours.

This is A(4). So

$A(4) = 109(0.97)^4 = 96.49$

Rounding to the nearest whole number, 96 people.

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3 years ago

What is the sum of any rational number and its opposite

Ulleksa [173]

The correct answer you would be looking for would be 0 because it is equal to anything.

Hope this helps :)

Please mark me as brainliest!!!

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3 years ago