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Airida [17]
3 years ago
14

(7+√5)√5-(7+√5)7 how to solve this question​

Mathematics
1 answer:
SSSSS [86.1K]3 years ago
3 0

Answer:

-44

Step-by-step explanation:

<u><em>Using distribute property of multiplication</em></u>

=> 7\sqrt{5} + (\sqrt{5} )^2-49-7\sqrt{5}

(7\sqrt{5} will be cancelled with each other)

=> 5 - 49

=> -44

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Yuri [45]
Descent  = 10 feet
Time required = 2 1/2 minutes.
The rate of descent = (10 feet)/(2.5 mn) = 4 ft/min

In 6 minutes, the descent will be
(4 ft/min)*(6 min) = 24 ft

Answer:
(a) 4 feet/minute
(b) 24 feet


4 0
3 years ago
Can u help me with this
pishuonlain [190]
The answer is 10.62 meters. All you have to do is add them together to get the answer. I hope you find this answer the most helpful! :)
3 0
3 years ago
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What is the volume of this figure?<br> 5<br> 10 ft<br> 15 ft<br> 15 ft
Svetlanka [38]

Answer:

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Step-by-step explanation:

5 x 10 x 10 x 15

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4 0
3 years ago
The International Average Salary Income Database provides a comparison of average salaries for various professions. The data are
Tamiku [17]

Solution :

The monthly average salary and the standard deviation of the salaries of five different countries are provided. A person is interested in the relationship between the job performance, job satisfaction and the job compensation of the five different countries and try to compare them.

She calculated the z scores for accounting that makes $ ,500 per month as :

Country              z-score for salary $ 1,500

Brazil                       $\frac{1500-1351}{337.80} = 0.44$

US                          $\frac{1500-3370}{1011} = -1.85$

China                     $\frac{1500-165}{24.80} = 53.83$

Slovakia                 $\frac{1500-646}{96.80} = 8.82$

Kuwait                    $\frac{1500-2697}{808.20} = -1.48$

From above it is clear that an account from China getting  z score of 53.83 will ne more pleased than other countries because the salary of $1,500 in one month for this particular country corresponds to the highest z score.

7 0
3 years ago
A child 4.5 feet tall cast a 6 foot shadow a nearby statue casts a 12 foot shadow what is the height of the statue
neonofarm [45]

Answer: I believe it would be 9 feet tall.

Step-by-step explanation:

The statues shadow is 2 times larger than the childs shadow so you would multipy the childs height by 2

8 0
3 years ago
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