3 years ago

A

Mathematics

1 answer:

tatuchka [14]3 years ago

3 0

Answer:

609.55

Step-by-step explanation:

789.34−45.75+145.67+503−782.71=609.55

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<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B%20%7B9x%7D%5E%7B2%7D%20-%20%7B%28x%7D%5E%7B2%7D%20-%204%29%20%7B%7D%5E%7B2%7D%20

Alenkinab [10]

Answer:

${ x^2+3x-4}$

Step-by-step explanation:

Factor top and bottom.

The numerator is a difference of two squares, and the denominator is a quadratic.

$\frac{ {9x}^{2} - {(x}^{2} - 4)^{2} }{4 + 3x - {x}^{2} }$

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

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

If x does not equal -1 and does not equal 4, we can cancel the common factors in italics to give

= ${ (x-1)(x+4)}$

= ${ x^2+3x-4}$

3 0

3 years ago

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snow_lady [41]

Answer:

0.03

Step-by-step explanation:

7 0

4 years ago

PLS HELP THIS IS VERY HARD FOR ME

harkovskaia [24]

Answer:

cone: 3

vanilla: 2

strawberry: 1

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4 years ago

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(27 ΔWXY 2 ΔWXZ W γ (20y + 10) 19 19 X 3y +7 Z

daser333 [38]

Answer: B

Step-by-step explanation: Always B

4 0

3 years ago

An arc that subtends a full angle of 360 degrees is called a(n) ______.

White raven [17]

Hi,
That would be a circle because it has 360 degrees.

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4 years ago

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