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Rama09 [41]
3 years ago
13

What is the coefficient of x2 in the expansion of (x + 2)^3

Mathematics
1 answer:
galina1969 [7]3 years ago
6 0

Answer:6

Step-by-step explanation:

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Raeana is twice as old as Madeline, and Laura is 10 years older than Raeana. If Laura is 50 years old, how old is Madeline? Let
aalyn [17]

Raeana =R

Madeline=M

Laura= L

L=50

R=50-10=40

M=40/2=20

Madeline is 20 years old

5 0
3 years ago
3/24 in lowest terms
lesya [120]

3/4 =3/4

4/6= 2/3

8/18= 4/9

9/15=3/5

7/21= 1/3

10/12= 5/6

4/8= 1/2

10/16=5/8

15/20= 3/4

3/30=1/10

7 0
3 years ago
Jerome hiked three fourths of a mile in two thirds of an hour. How many miles can Jerome hike in one hour?
KatRina [158]

Answer: 1.125 miles

Step-by-step explanation:

2/3 hour___3/4 miles

1 hour___X= 1.125 miles

(1*3/4)/(2/3) = 1.125

7 0
3 years ago
5 watermelons 6 cantaloupes cost $54. 4 watermelons and 8 cantaloupes $56. how much is a cantaloupe
GREYUIT [131]

Answer:

A cantaloupe costs $4

Step-by-step explanation:

Watermelons = W

Cantaloupes = C

Write given statements as equations

5W + 6C = 54

4W + 8C = 56

Simplify the second equation

4W + 8C = 56

Subtract 8C from both sides of the equation

4W = 56 - 8C

Divide both sides of the equation by 4

W = 14 - 2C

Substitute into second equation

5W + 6C = 54

5(14 - 2C) + 6C = 54

Multiply 5(14 - 2C)

70 - 10C + 6C = 54

Add -10C + 6C

70 - 4C = 54

Add 4C to both sides of the equation

70 = 54 + 4C

Subtract 54 from both sides of the equation

16 = 4C

Divide both sides of the equation by 4

C = 4

A cantaloupe costs $4

5W + 6(4) = 54

Multiply 6(4)

5W + 24 = 54

Subtract 24 from both sides of the equation

5W = 30

Divide both sides of the equation by 5

W = 6

A cantaloupe costs $4

A watermelon costs $6

Hope this helps :)

8 0
4 years ago
Find the circumference of a circle with radius, r = 11.5m. Give your answer in terms of π .
nignag [31]

Answer:

So,

if C = 2πR

you take 2π you get 6.28

so C=6.28 x r

the radius is 11.5 so

6.28 x 11.5 = 72.2566

the circumference is 72.2566

Step-by-step explanation:


4 0
3 years ago
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