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Anna71 [15]
2 years ago
8

Explain why the polynomial 144x2 − 200x + 81 is not a perfect square.

Mathematics
1 answer:
Alex Ar [27]2 years ago
5 0

Answer: It's not

Step-by-step explanation:

A perfect square is always (x+y)^{2}, where x^{2} +2xy+y^{2}.

Knowing this, we can square root 144x to get 12x. Square rooting 81 gets us 9. Unfortunately, if we multiply 12 and 9 together, then double it, we get 216, which is definitely not 200.

Therefore, the polynomial is not a perfect square.

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Sendo a= {1, 2, 3, 5, 7, 8} b= {2, 3, 7} indique qual é o completar de b em a ?
Yuki888 [10]

Answer:

For english people:

Since a = {1, 2, 3, 5, 7, 8} b = {2, 3, 7} indicate what is the completion of b in a?

Step-by-step explanation:

7 0
4 years ago
Let F(x)=-<img src="https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B5%7D%20x%2B10" id="TexFormula1" title="\frac{4}{5} x+10" alt="\frac
Reptile [31]

The numeric values for the function are given as follows:

a) f(-5) = 14.

b) f(0) = 10.

c) f(5/2) = 8.

d) f(5a) = -4a + 10.

e) f(5a - 15) = -4a + 22.

<h3>How to find the numeric value of a function?</h3>

To find the numeric value of a function, we replace each instance of the variable by the desired value.

For this problem, the function is given by:

f(x) = -0.8x + 10.

Hence the numeric values are given as follows:

  • f(-5) = -0.8(-5) + 10 = 14.
  • f(0) = -0.8(0) + 10 = 10.
  • f(5/2) = f(2.5) = -0.8(2.5) + 10 = 8.
  • f(5a) = -0.8(5a) + 10 = -4a + 10.
  • f(5a - 15) = -0.8(5a - 15) + 10 = -4a + 22.

More can be learned about the numeric value of a function at brainly.com/question/14556096

#SPJ1

7 0
2 years ago
[ Algebra 2 ]
svetlana [45]

see attached. i hope this helped

4 0
3 years ago
Find the integer a such that<br> a.a ≡ 43 (mod 23) and −22 ≤ a ≤ 0.
Margaret [11]
Given that a is an integer from -22 to 0 such that a is equivalent to 43 (mod 23).

Such a can be obtained as follows:

a = 43 (mod 23) - 23 = 20 - 23 = -3.

Therefore, a = -3.
8 0
4 years ago
Express 4 250 000 000 000 in standard form
AlladinOne [14]

hi <3

standard form is written in the form a x 10^n

where a is a number between 1 and 10

in this case, you would get 4.25 x 10^12

hope this helps :)

7 0
3 years ago
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