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kodGreya [7K]
4 years ago
10

Find the value of x given that

Mathematics
1 answer:
Elodia [21]4 years ago
7 0

For the first part, the results get quite crazy. I hardly believe that you're supposed to do this by hand, so I'm afraid that there's some typo in the question.

As for the second part, we have

\sqrt{x}+\dfrac{1}{\sqrt{x}}=\dfrac{x+1}{\sqrt{x}}

Plug your value for x and you have

\dfrac{x+1}{\sqrt{x}} \mapsto \dfrac{4+2\sqrt{2}}{\sqrt{3+2\sqrt{2}}}=\dfrac{4+2\sqrt{2}}{1+\sqrt{2}}

We can rewrite the quantity as

\dfrac{4+2\sqrt{2}}{1+\sqrt{2}}\cdot\dfrac{1-\sqrt{2}}{1-\sqrt{2}}=\dfrac{4-4\sqrt{2}+2\sqrt{2}-4}{-1} = 2\sqrt{2}

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Answers matching "The combined average weight of an okapi and a llama is 450 kilograms. The average weight of 3 llamas is 190 ki
kirill [66]

Let us say that:

x = weight of llamas

y = weight of okapi

 

From the problem, we can create the equations:

x + y = 450           --> 1

3 x = y + 190        --> 2

 

Rewriting equation 1:

x = 450 – y

 

From equation 2:

3 (450 – y) = y + 190

1350 – 3 y = y + 190

4 y = 1160

y = 290

 

From equation 1:

x = 450 – 290

x = 160

 

Therefore a llama weighs 160 kilograms while okapi weigh 290 kilograms on average.

5 0
4 years ago
A boy knows that he is 5 feet 6 inches tall. at the time of day when his shadow is 4 feel long, a trees shadow is 16 feet long.
DiKsa [7]
It would be 22Ft tall.
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4 years ago
Last holiday season, you bought 7 gifts, each of which cost $10. This season, you need to buy gifts for 10 people with the same
gladu [14]
$10 plus $10= $1
cause you now buying for 10 people with $10.
3 0
4 years ago
A man owns 50 shares of stock worth $30 each. The corporation declared a dividend of 6% payable in stock. How many shares did he
Tasya [4]

9514 1404 393

Answer:

  53 shares

Step-by-step explanation:

If we assume the price remained constant, then the number of shares increased by 6%.

  (50 shares)(1 +6%) = 53 shares

The man then owned 53 shares.

5 0
3 years ago
Select the correct answer. Which of the following is equal to the expression below? (8 - 320) 3 OA. 40 O B. 30 OC. 10 5 OD. 835​
ra1l [238]

Answer:

Quesiton is not clear. here is the asnswer basing on our understand

Step-by-step explanation:

(8-32)3 = (-24*3) = =72

3 0
3 years ago
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