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1 year ago

Find the missing side length. The perimeter, P, is given

Mathematics

1 answer:

zhenek [66]1 year ago

4 0

Answer:

4x + 7

Step-by-step explanation:

(3x - 2) + (6x + 6) = 9x + 4

(13x + 11) - (9x + 4) = 4x + 7

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A 30-inch board is to be cut into three pieces so that the second piece is 4 times as long as the first piece and the third pie

Arte-miy333 [17]

Answer:

Step-by-step explanation:

Length of:

First piece = x

Second piece = 4x

Third piece = 5x

Equation: 30 = 4x + 5x + x

Solving the Equation:

10x = 30

x = 3

Lengths of:

First piece = 3 inches

Second piece = 12 inches

Third piece = 15 inches

6 0

2 years ago

Wyatt’s eye-level height is 120 ft above sea level, and Shawn’s eye-level height is 270 ft above sea level. How much farther can

brilliants [131]

Using the formula given: d = √(3h/2)

We simply substitute the given values of h into the equation and compare the results.

For Wyatt where h = 120:
d = √(3(120)/2)
d = 13.42 miles

For Shawn where h = 270:
d = √(3(270)/2)
d = 20.12 miles

Since the question asks for how much farther can Shawn see, we subtract the results:

20.12 - 13.42 = 6.7

Therefore, Shawn can see 6.7 miles farther.

4 0

2 years ago

A quadrilateral has side lengths of 2x, (3x - 4), (2x - 3), and (x + 5). Find the perimeter.

Shalnov [3]

Um i really do not know

7 0

3 years ago

Read 2 more answers

Can someone help with this problem?

Sindrei [870]

Answer:

the awnser is 8 would you want me to do an explanation also?

4 0

3 years ago

Say a hacker has a list of n distinct password candidates, only one of which will successfully log her into a secure system. a.

alexdok [17]

Answer:

The probability is $\frac{1}{n}$

Step-by-step explanation:

If she has n distinct password candidates and only one of which will successfully log her into a secure system, the probability that her first first successful login will be on her k-th try is:

If k=1

$P = \frac{1}{n}$

Because, in her first try she has n possibles options and just one give her a successful login.

If k=2

$P=\frac{n-1}{n} *\frac{1}{n-1} =\frac{1}{n}$

Because, in her first try she has n possibles options and n-1 that are not correct, then, she has n-1 possibles options and 1 of that give her a successful login.

If k=3

$P=\frac{n-1}{n} *\frac{n-2}{n-1} *\frac{1}{n-2} = \frac{1}{n}$

Because, in her first try she has n possibles options and n-1 that are not correct, then, she has n-1 possibles options and n-2 that are not correct and after that, she has n-2 possibles options and 1 give her a successful login.

Finally, no matter what is the value of k, the probability that her first successful login will be (exactly) on her k-th try is 1/n

7 0

2 years ago