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3 years ago

what number should be added to the expression x^2 + 10x to change it into a perfect square trinomial?

Mathematics

2 answers:

Tamiku [17]3 years ago

6 0

Answer:

Step-by-step explanation:

In case anyone was confused the answer is 25. took the test.

Annette [7]3 years ago

3 0

Answer:

$\large\boxed{5^2=25}$

Step-by-step explanation:

$\text{Perfect square:}\ (a+b)^2=a^2+2ab+b^2\\\\x^2+10x\\\Downarrow\\x^2+2(x)(5)\\\Downarrow\\x^2+2(x)(5)+5^2=(x+5)^2$

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Answer:

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3 years ago

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allochka39001 [22]

Answer:

p>-3 open circle going to the right

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Step-by-step explanation:

Before I answer these here are some good notes

If the inequality sign is < or > then the circle is going to be open

If the inequality sign is $\leq or\geq$ then the circle is going to be closed

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$m\leq -4$ closed circle going to the left

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6 0

3 years ago

A random sample of 100 students was taken. Of the 100 students, 50 liked vanilla ice cream, 37 liked chocolate ice cream, and 13

tino4ka555 [31]

Answer:

444

Step-by-step explanation:

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3 years ago

5s-(100+2s =4s-2(10+s) how much boxes would they need to sell to get a equal amount each group must sell to have equal profits.

antoniya [11.8K]

5s-100-2s=4s-20-2s
3s-100. = 2s-20
+20. +20
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-3s. -3s
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-1 -1
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3 years ago

Which values of x are solutions of the equation below

Mandarinka [93]

Answer:

x = 3.3 and -0.3

Step-by-step explanation:

Given the expression

1/x-4 + x/x-2=2/x^2-6x+8

Find the LCM

x-2+x(x-4)/(x-4)(x-2) = 2/x^2-6x+8

Since the denominator, are the same they cancels out

x +1 + x(x-4) = 2

x+1 + x²-4x = 2

x²-3x + 1 - 2 = 0

x² - 3x - 1 = 0

Factorize

x =3±√9+4/2

x =3±√13/2

x = 3±3.6/2

x= 6.6/2 and -0.6/2

x = 3.3 and -0.3

4 0

3 years ago

what number should be added to the expression x^2 + 10x to change it into a perfect square trinomial?​

what number should be added to the expression x^2 + 10x to change it into a perfect square trinomial?