3 years ago

90 points please help real answers !!!

Mathematics

1 answer:

Step2247 [10]3 years ago

5 0

Find the length of each side using the distance formula:, then add all three side length for the perimeter.

Area is found by multiplying the base by the height by 1/2.

See attached picture for the answer:

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Which function is a quadratic function? y – 3x2 = 3(x2 + 5) + 1 y2 – 7x = 2(x2 + 6) + 7 y – 2x2 = 6(x3 + 5) – 4 y – 5x = 4(x + 5

Anna71 [15]

Answer:

Option A.

Step-by-step explanation:

The general form of a quadratic function is

$y=ax^2+bx+c$

It means, power of y should be 1 and highest power of x should be 2.

In option A,

$y-3x^2=3(x^2+5)+1$

$y-3x^2=3x^2+15+1$

$y=3x^2+16+3x^2$

$y=6x^2+16$

It is a quadratic function.

In option B,

$y^2-7x=2(x^2+6)+7$

Here, power of y is 2. So, it is not be a quadratic function.

In option C,

$y-2x^2=6(x^3+5)$

Here, highest power of x is 3. So, it is not be a quadratic function.

In option D,

$y-5x=4(x+5)+9$

Here, highest power of x is 1. So, it is not be a quadratic function.

Therefore, the correct option is A.

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3 years ago

Does the graph represent a function?

kykrilka [37]

No the graph does not represent a function , it does not pass the vertical line test

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Solve this simultaneous equation using subsitution<br> 5x-4y=-1<br> 2x+y=10

Morgarella [4.7K]

Answer:

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Step-by-step explanation:

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ethan ate 4/8 of the sandwich.Andy ate 1/2 of the sandwich. the sandwiches were the same size whose sandwich had more equal part

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Step-by-step explanation:

I am 90% sure

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