(1) Repetition allowed : There are 4 choices for both positions, so 4 × 4 = 16 2-digit numbers can be formed. (2) Repetition not allowed : There are 4 options for tens position, and three options for ones position. Therefore, 4 × 3 = 12 2-digit numbers can be formed.

8 0

3 years ago

Witch would the phase ''the difference between a number and 4'' look like as a variable expersion

tia_tia [17]

Can you up load a picture .

3 0

3 years ago

The scale drawing at right shows the first slope of a house, the actual dimensions of the garage are 20 feet by 25 feet. All ang

ad-work [718]

Answer:

See below

Step-by-step explanation:

According to dimensions of the garage, the scale is:

1 in : 20 ft, as the width of the garage is 20 ft and on paper is 1 in

Living room

Dimensions on paper:

2 in x 1 1/4 in

Actual dimensions:

2*20 ft = 40 ft and
1 1/4 * 20 ft = 25 ft

The area of the living room:

A = lw = 25*40 = 1000 ft²

Cost of carpet:

1000*$1.25 = $1250

4 0

2 years ago

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