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Andreas93 [3]
2 years ago
6

HELP ME, PLZ. 100 POINTS !!!

Mathematics
1 answer:
marta [7]2 years ago
3 0

Answer:

x=2√5/5

x=-2√5/5

Step-by-step explanation:

13√(2√5/5)^2-(2√5/5)^4+9√(2√5/5)^2+(2√5/5)^4=16

13√(4×5/25)-(16×25/625)+9√(4×5/25)+(16×25/625)

13√(4/5)-(16/25)+9√(4/5)+(16/25)

13√(4/25)+9√(36/25)

13×2/5+9×6/5

26/5+54/5

16=16 (proven)

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Which of the following expressions is incorrect?
iragen [17]
The third expression is wrong
3 0
3 years ago
Look at the triangle:
lutik1710 [3]

Answer:

15/17

Step-by-step explanation:

You can calculate cosine by doing adjacent / hypotenuse so cos x° = 15/17.

7 0
2 years ago
katie has red 32% of a book if she has to read 80 pages how many more pages does Katie have left to read
galben [10]
In this question, the information that Katie has already read 32% of a book that has a total of 80 pages is of great importance. This information is enough to find the required answer to the question.
Total number of pages Katie has to read = 80
Percentage of pages that Cathie read = 32%
Number of pages that Katie read = (32/100) * 80
                                                     = 256/10
                                                     = 25.6 pages
Then
The number of pages that Katie have left to read = 80 - 25.6
                                                                               = 54.4 pages
So Katie has 54.4 pages left to read.
                                                    
5 0
3 years ago
A certain server works four 6-hour shifts a week at a restaurant and has a base salary of $9.75/ℎ. An average server sells $1400
mezya [45]

Answer:

$52,936

Step-by-step explanation:

1400(.14)(4) + 4(6)(9.75) = 784 + 234 = $1018/week

52(1018) = $52,936

4 0
3 years ago
Find the slope given the following ordered <br><br> 2,-3 and 6,-13
saw5 [17]

You would have to use this equation : y2-y1/x2-x1 = slope

So it would be -13 +3/6-2= -10/4

Simplify it and you get : -5/2

Slope is -5/2

7 0
3 years ago
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