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2 years ago

How many different 4-digit PIN codes are there that only include the digits 5, 9, 6 and 2?

Mathematics

1 answer:

denis23 [38]2 years ago

7 0

Answer:

256

Step-by-step explanation:

The digits can only be one of four numbers.

4*4*4*4 = 4^4 = 256

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Two sides of a rectangle are 4cm in length. The other two sides are 6cm in length. What is the perimeter of the rectangle? Inclu

mr Goodwill [35]

Answer: 200 mm

Step-by-step explanation:

The perimeter of rectangle is given by :-

$P=2(l+w)$ , where l is length and w is width of the rectangle.

Given : Two sides of a rectangle are 4 cm in length. The other two sides are 6 cm in length.

The perimeter of the rectangle will be :_

$P=2(4+6)=2(10)=20\ cm$

We know that 1 cm = 10 mm

Therefore, perimeter of the rectangle = $20\times10=200\ mm$

8 0

2 years ago

The school cook made 30 pounds of potato salad for the school picnic. How many servings is this if each serving is 1/4 pound?

iren2701 [21]

120 servings.
You do this by multiplying 30 by 4 (because each pound can make 4 servings as represented by 1/4 pound) Hope you understand I'm not good with explaining.

7 0

2 years ago

Read 2 more answers

A bag contains 11 tiles, one for each of the letters in the word BLUEBERRIES. You randomly choose a tile.

wel

2/11

there’s 2 R’s and 11 total so

possible outcomes/ overall outcomes

7 0

2 years ago

Find the value of tanθ, if cosθ = 4/5 ; 0° ≤ θ< 90°

Montano1993 [528]

Answer:

Step-by-step explanation:

<u>Given </u>

cosθ = 4/5
0° ≤ θ < 90°

<u>In the first quadrant both sine and cosine are positive, so as tangent.</u>

tanθ = sinθ / cosθ =
$\sqrt{1 - cos^2}$ θ / cosθ =
$\sqrt{1 - (4/5)^2}$ / 4/5 =
$\sqrt{9/25}$ / 4/5 =
3/5*5/4 =
3/4

4 0

2 years ago

What is the Greatest common factor of 18x^2 and 36x

adoni [48]

For this case we have that by definition, the Greatest Common Factor or GFC of two or more numbers, is the largest number that divides them without leaving residue.

So, we have to:

We look for the factors of 18 and 36:

18: 1,2,3,6,9,18

36: 1, 2,3,4, 6,9,18 ...

It is observed that the GFC of both numbers is 18.

Then, the GFC of $18x ^ 2$ and $36x$ is:

18x

Answer:

18x

6 0

2 years ago