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adoni [48]
3 years ago
9

I need help finishing a question. I used the explanation function on the program, but it didn't specify what to do to get the fi

nal answer. I have attached a picture.
"Find the real solutions. Use the quadratic formula and a calculator."

At the last step, it said to use a calculator to see if the solutions satisfy the equation, but does that mean I need to plug in the whole thing for each x in the original equation? That would take a long time. I tried punching the "(1 plus or minus sqrt (1 + 160pi^2)) / 2" into my calculator, but the answers I got were wrong.​

Mathematics
2 answers:
leva [86]3 years ago
6 0

I would compute sqrt(1 + 160pi^2) first to get approximately 39.75093337

Add this to 1 and we have 40.75093337

Then divide over 2pi to get a final approximate result of 6.48571248

So x = 6.48571248 is one approximate solution

In short, I computed \frac{1+\sqrt{1+160\pi^2}}{2\pi} only focusing on the plus for now.

----------------------

If you were to compute \frac{1-\sqrt{1+160\pi^2}}{2\pi} you should get roughly -6.167402596 as your other solution. Each solution can then be plugged into the original equation to check if you get 0 or not. You likely won't land exactly on 0 but you'll get close enough.

grandymaker [24]3 years ago
6 0

Answer:

x = 6.49

Step-by-step explanation:

1st is to calculate \sqrt{1 + 160 pi^2} = 39.75 then add 1 = 40.75

2nd divide it by 2pi = 40.75/(2pi) = 6.49

therefore your x = 6.49

the equation would look like

   1 ± \sqrt{1 + 160 pi^2}            1  ±  39.75

= --------------------------  =  ---------------- = 6.49

           2*pi                        6.28

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Shtirlitz [24]

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6 0
3 years ago
Given the figure below, which of the following points name a line segment, a line, or a ray?
GuDViN [60]

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4 0
3 years ago
George is now 8 years older than harry, find their present age if in 5 years george will be twice as harry was 2 years ago
umka21 [38]

The present age of George is 25 years and the present age of Harry is 17 years

For given question,

Let x be the age of George and y be the age of Harry.

George is now 8 years older than harry.

So, we get an equation,

x = y + 8                      ...................(1)

After 5 years the age of George will be x + 5 and the age of Harry will be    y + 5

Two years ago the age of Harry = y - 2

In 5 years George will be twice as Harry was 2 years ago.

So we get an equation,

x + 5 = 2(y - 2)                ..............(2)

Substitute the value of x in equation (2)

⇒ x + 5 = 2(y - 2)  

⇒ y + 8 + 5 = 2y - 4

⇒ y + 13 = 2y - 4

⇒ y = 17

Substitute the above value of y in equation (1)

⇒ x = 17 + 8

⇒ x = 25

Therefore, the present age of George is 25 years and the present age of Harry is 17 years

Learn more about an equation here:

brainly.com/question/13170101

#SPJ4

3 0
2 years ago
Nich has a collection of books. He has 115 fantasy and science fiction books. These books are 46% of his collection. How many bo
Lilit [14]
He would read 52.9 pages is he read 46%. .46*115=52.9

6 0
3 years ago
Brainliest gets 25 points
aalyn [17]

Answer:

A, Marketing Communications is the career of Circle B, Professional Sales is the career of Circle C, and Circle D is "work in a restaurant."

5 0
3 years ago
Read 2 more answers
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