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GuDViN [60]
3 years ago
15

Plz help on the 6 problems

Mathematics
1 answer:
Leokris [45]3 years ago
5 0
1.) 9
2.)7
3.)106
4.)13
5.)192
6.)11
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A key code must contain 6 numerals. There are 10 numerals available. Using these numerals, how many different key codes may be c
sattari [20]
Imagine tha the each numeral of the code is written over each line:

__  __  __  __  __  __
1      2    3    4    5   6

Every position may have any of the 10 different numerals.

So over the first line you can put 10 different numerals and the same is true for each of the six positions.

So you can create 10x10x10x10x10x10 = 1,000,000 different codes.
4 0
3 years ago
A photograph is 18 cm by 12 cm. It is to be surrounded by a frame of uniform width whose area is equal to that of the photograph
melisa1 [442]

Answer:

Width of the frame = 54 cm

Step-by-step explanation:

  1. Find area of the frame = l*h = 18*12 = 216 cm
  2. Area of the frame = area of the photograph = 216 cm
  3. Use the given fact, photograph is surrounded by a frame of uniform width = all sides are equal.
  4. width of the frame = 216/4 = 54

<u>Source</u><u>: TutorEye</u>

5 0
3 years ago
Solve each equation by completing the square <br> 6) m² + 16m – 8 = 0
Natali5045456 [20]

Answer:

m = - 8 ± 6\sqrt{2}

Step-by-step explanation:

Given

m² + 16m - 8 = 0 ( add 8 to both sides )

m² + 16m = 8

To complete the square

add ( half the coefficient of the m- term )² to both sides

m² + 2(8)m + 64 = 8 + 64

(m + 8)² = 72 ( take the square root of both sides )

m + 8 = ± \sqrt{72} = ± \sqrt{36(2)} = ± 6\sqrt{2}

Subtract 8 from both sides

m = - 8 ± 6\sqrt{2}

3 0
4 years ago
I'm confused on how to create ratios
Rzqust [24]

Answer:

Latoya:

cran : lem = 2 1/5 : 1 4/5

= 11/5 : 9/5

= 11 : 9

Lem : total = 9 : 20

Parker:

cran : lem = 2 1/2 : 3 1/2

= 5/2 : 7/2

= 5 : 7

Lem : total = 7 : 12

Step-by-step explanation:

8 0
3 years ago
Write an expression that represents the sum of a number and 12
vodka [1.7K]
X+12=y
Hope this helps :)
5 0
3 years ago
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