3 years ago

Determine the vertex of the parabola:

Mathematics

1 answer:

Elza [17]3 years ago

7 0

Answer:

Be more clear please

Step-by-step explanation:

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How do you write 26% as a fraction?

expeople1 [14]

Answer:

You can do 26/100 or 13/50

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2 years ago

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What is 5-8|-2n|=-75? And I know it is not n=5 or -5 Please Help!

vichka [17]

Answer:

n = -5

I think the answer is -5, because:

The last number in the operation has a negative sign.

This can be a reason that it is-5.

Hope it helps!

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3 years ago

Kathy buys a bicycle after a 30% markdown. The original price was $490.00. What did she pay?

Umnica [9.8K]

Answer:

$343

Step-by-step explanation:

To get 30% of 490 we divide 30% by 1

30% ÷ 1 = 147

Now, we subtract 490 by 147

490 - 147 = 343

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3 years ago

Solve 4/x-4=x/x-4-4/3 for x and determine if the solution is extraneous or not

4vir4ik [10]

Answer:

x = 4 (extraneous solution)

Step-by-step explanation:

$\frac { 4 } { x - 4 } = \frac { x } { x - 4 } - \frac { 4 } { 3 } \\ \frac { 4 } { x - 4 } - \frac { x } { x - 4 } = - \frac { 4 } { 3 } \\ \frac { 4 - x } { x - 4 } = - \frac { 4 } { 3 } \\ 3 ( 4 - x ) = - 4 ( x - 4 ) \\ 1 2 - 3 x = - 4 x + 1 6 \\ 4 x - 3 x = 1 6 - 1 2 \\ x = 4 \\$

This solution is extraneous. Reason being that even if it can be solved algebraically, it is still not a valid solution because if we substitute back $x=4$ , we will get two fractions with zero denominator which would be undefined.

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3 years ago

James drops a water balloon from a height of 45cm how long will it take the water balloon to hit the ground? (Look at picture)

EleoNora [17]

It will take under 10 seconds to hit the ground

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3 years ago