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Nadya [2.5K]
3 years ago
13

The area of a room in a dollhouse is 1248 square inches. The width of the room is 8 inches. How long is the room?

Mathematics
2 answers:
Sladkaya [172]3 years ago
5 0
1248 divided by 8= 156
Neko [114]3 years ago
3 0
The length of the room is 156 inches because 8 x 156 is 1248
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Xy has 10 pets: 4 dogs, 3 cats, 2 alpacas and 1 bunny. If he wants to arrange them in a row and make sure the pets are always gr
Anastaziya [24]

The number of ways pets can be arranged in group according to the species is  in a row 288 ways.

Pets can be grouped by permutation concept as follows.

Total number of pets = 10

Number of dogs = 4

Number of cats = 3

Number of alpacas = 2

Number of bunny = 1

The number of ways pets can be arranged in group according to the species in a row as,

⇒ (4!)(3!)(2!)(1!)

⇒ (24)(6)(2)(1)

⇒ 288

Hence we can conclude that the number of ways pets can be arranged in group according to the species in a row is 288 ways.

Learn more about permutation here

brainly.com/question/22444718

#SPJ4

8 0
2 years ago
If B=3x-1 and C=2x^2+x+9, find an expression that equals 2B+2C in standard form.
Anestetic [448]

Answer:

4x^2 +8x + 16

Step-by-step explanation:

2 (3x - 1) + 2 (2x^2 + x + 9)

6x - 2 + 4x^2 +2x + 18

4x^2 + 8x +16

3 0
3 years ago
Sam purchased two bottles of water and three hot dogs a the ball park for $8.50. Mary purchased one bottle of water and two hot
Nata [24]
C. is the correct answer
5 0
3 years ago
Given a ≠ ± b and (a^2-b^2) / (a+b)=12 find a-b.
grigory [225]

Answer:

\sqrt{12a  \:  +  \: 12b \:  -  \: 2ab \:  +  \: 2b {}^{2} }

Step-by-step explanation:

(a²-b²) / (a+b) = 12

a² - b² = 12(a+b)

(a-b)² + 2ab - 2b² = 12a + 12b

(a-b)² = 12a + 12b - 2ab + 2b²

a - b =

\sqrt{12a \:  + 12b \:  - 2ab \:  +  \: 2b {}^{2} }

5 0
3 years ago
PLS HELP ILL MARK BRAINLIST
Olin [163]

Answer:

The answer is the first one 7

3 0
3 years ago
Read 2 more answers
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