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4 years ago

Manuel noticed that his cellphone bill reflected a monthly

Mathematics

1 answer:

Blababa [14]4 years ago

6 0

80 minutes i think bcuz 40 divided by 0.5 is 80

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1. When the outcome of one even has NO effect on the outcome of the other is called... A. likely events

dimaraw [331]

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3 years ago

Rewrite the equation by completing the square.

Pavlova-9 [17]

Answer:

$(x-\frac{1}{2})^2=\frac{81}{4}$

Step-by-step explanation:

Hi there!

$x^2-x-20=0$

This equation is written in the form $ax^2+bx+c=0$ . First, use partial factoring:

$(x^2-x)-20=0$

For x^2-x, the <em>b</em> value is -1 in $ax^2+bx+c$ . To complete the square, take the square of half of 1 and add it in the parentheses as the <em>c</em> value:

$(x^2-x+\frac{1}{2}^2 )-20=0$

However, when adding values to one side of the equation, we must to the same to the other side:

$(x^2-x+\frac{1}{2}^2 )-20=\frac{1}{2}^2$

Complete the square:

$(x-\frac{1}{2})^2-20=\frac{1}{4}$

Move 20 to the other side

$(x-\frac{1}{4})^2=\frac{1}{4}+20\\(x-\frac{1}{2})^2=\frac{81}{4}$

I hope this helps!

7 0

3 years ago

??????????????? ?????????

Step2247 [10]

I think that would be "True". Good Luck ;D

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4 years ago

Which of these apply to this:

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Side angle side so basically (SAS)

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3 years ago

Read 2 more answers

What is percent is 14 out of 25?

natka813 [3]

Answer: 3.50

Step-by-step explanation:

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3 years ago