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exis [7]
3 years ago
15

A computer system password requires five characters, all lowercase letters (remember there are 26 letters), and all the letters

must be different. how many different passwords are possible?
Mathematics
1 answer:
Goshia [24]3 years ago
3 0
26 divided by 5 = 5.2
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PLEASE SOMEONE TELL ME HOW THEY GOT 423 cm AS THE ANSWER FOR A. I NEED HELP WITH THIS QUESTION!!!!!!!!!!!!!
3241004551 [841]

From the setup of the problem, the "length of the top of the bookcase, measured along the attic ceiling" will be the hypotenuse of a right triangle, the length "AB". We have both the angle between AB and AC and the length of AC (3.24 meters), so we can use trigonometric identities.

The cosine of the 40 degree angle between AB and AC is equivalent to the length of AC divided by the length of AB. Equivalently, we have:

cos(40) = \frac{3.24}{h}

where "h", the hypotenuse, is the length we want. Rearranging the formula to solve for h we have that

$h = \frac{3.24}{cos(40)}$

which is 4.2295... meters. Converting to centimeters (multiplying by 100) we have that h = 422.95... centimeters, or if we round the value, h = 423 centimeters.

6 0
3 years ago
Solve and check the equation<br> 5x+8=7x-4
Phantasy [73]
<h2>Answer:<em> X=6</em></h2>

Hope this is the answer you are looking for.. if it's wrong please letme know

6 0
3 years ago
A piece of ribbon is 63 inches long. it is cut into pieces that are each 7 inches long. how many pieces of ribbon are there?
Burka [1]

Answer: 9

63 divided by 7 = 9

9 x 7 = 63

3 0
2 years ago
Read 2 more answers
What is the length of the unknown leg
likoan [24]

Answer:

6 mm

Step-by-step explanation:

Use the Pythagorean Theorem to solve for the unknown leg

a^{2} +b^{2}=c^{2}

Since we need to solve for a, we will manipulate the equation in terms of b and c → a=\sqrt{c^{2}-b^{2}  }

Here,  b = 7 mm and c = \sqrt{85} mm

Plugging these numbers into our equation gives us a=\sqrt{(\sqrt{85})^{2} -(7)^{2}  } →\sqrt{85-49} = \sqrt{36} = 6 mm

6 0
3 years ago
What is the explicit formula for this sequence? 5, 10, 20, 40 , 80, 160
8_murik_8 [283]

Answer:

Multiply by two. Formula could be x * 2

Step-by-step explanation:

4 0
3 years ago
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