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2 years ago

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What polynomial identity will prove that 49-4=45

1 answer:

Svetach [21]2 years ago

3 0

49 is a square given by 7x7 as is clear in your equation, 4 is a square given by 4x4 the operator given is - ( minus) you have two squares, and a difference sign a^2 - b^2 = (a-b)(a+b) 7^2 -2^2 = (7-2)(7+2) = (5)(9) = 45 it is the diffeernce of two squares

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The function y = x^2 - 4x + 5 approximates the height, y, of a bird, and its

Soloha48 [4]

Answer:

Option C and option D

Step-by-step explanation:

we have that

$y=x^{2}-4x+5$

This is the equation of a vertical parabola open upward

The vertex is a minimum

Convert the equation into vertex form

Complete the square

$y-5=x^{2}-4x$

$y-5+4=x^{2}-4x+4$

$y-1=x^{2}-4x+4$

$y-1=(x-2)^{2}$

$y=(x-2)^{2}+1$ ----> equation of the parabola in vertex form

The vertex is the point (2,1)

therefore

when the bird is 2 feet away from the first fence post, it reaches its minimum height of 1 foot

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2 years ago

-56 + _ =-84<br><br> please help

GaryK [48]

Answer:

-28 is the answer.

Step-by-step explanation:

84-56=28

56+28=84

-56+-28=-84

4 0

3 years ago

Evaluate :<br> 5 - 3 x when x = - 7<br> Substitute - 7 for x.

monitta

Answer:

26 because if x= -7 then -3 X - 7 = +21

+21 +5 = 26

4 0

3 years ago

Read 2 more answers

I have to write this on graph paper please help this is due tomorrow

eduard

Answer:

the answer is in the link

Step-by-step explanation:

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2 years ago

<img src="https://tex.z-dn.net/?f=x%20%5Cdiv%202%20%2B%20x%20%5Cdiv%203%20%3D%201%20" id="TexFormula1" title="x \div 2 + x \div

blsea [12.9K]

Answer:

Exact form : x=6/5

Decimal form : x=1.2

Mixed Number form : x=1 1/5

Step-by-step explanation: Solve for x by simplifying both sides of he equation, then isolating the variable.

Hope this helps you out! ☺

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2 years ago