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vladimir2022 [97]
2 years ago
12

Calcular en E 1231213123312312312123 123213213123

Mathematics
1 answer:
Stells [14]2 years ago
5 0

Answer:

9

Step-by-step explanation:

E = √ [ 5² + 2×( \frac{2}{3} )² + ( \frac{1}{3} )² + 7² + 6 ] = √(25 + \frac{8}{9} + \frac{1}{9} + 49 + 6) = √81 = 9

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The area of a trapezoid is 168cm2. The height is 16cm and the length of one of the parallel sides is 9cm. Find the length of the
dmitriy555 [2]

Answer:

12 cm

Step-by-step explanation:

The formula for the area of a trapezoid is written as:

1/2(b1 + b2)h

h = height = 16 cm

b1 = Length of one parallel side = 9cm

b2 = Length of second parallel side = ?

Area of trapezoid = 168cm²

The formula to find the length of the second parallel side =

b2 = 2A/h - b1

b2 = 2 × 168/16 - 9

b2 = 336/16 - 9

b2 = 21 - 9

b2 = 12cm

Therefore, the length of the second parallel side is 12 cm

3 0
2 years ago
Determine if the function is one-to-one.<br><br>​
olya-2409 [2.1K]

Answer:

No

Step-by-step explanation:

From what I saw on google for what "one to one" means, It's basically meaning that the bottom of that quadratic function is at point (0 , 0) and hits both (-1 , 1) and (1 , 1) on the graph.

4 0
2 years ago
The number of items (N) that can be purchased for a given amount of money is inversely proportional to the cost (C) of an item.
mars1129 [50]

Answer:

436 items

Step-by-step explanation:

When a quantity A is inversely proportional to another quantity B, we can write:

A=\frac{k}{B}

Where k is the proportionality constant  [that we need to find]

For this problem, we can write the ratio as:

N=\frac{k}{C}

Now given N = 480 and C = 4.90, we first find k:

N=\frac{k}{C}\\480=\frac{k}{4.90}\\k=4.90*480\\k=2352

Now, as second step, we need this time to find N, when

C = 5.40

Note, we know know k = 2352, so we find N:

N=\frac{k}{C}\\N=\frac{2352}{5.40}\\N=435.55

Rounding to next whole number, we have 436 items

5 0
3 years ago
How do I solve this I'm having a problem.
Llana [10]
How do you solve what
4 0
3 years ago
Read 2 more answers
What is the square root of 36x^4
marissa [1.9K]

What is the square root of 36x^4?


√36x^4 =


6x²


(√36=6 and √x^4 = x²)

6 0
2 years ago
Read 2 more answers
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