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katrin [286]
2 years ago
5

Expand and simplify (5x+2)(2x+3)

Mathematics
2 answers:
Tamiku [17]2 years ago
8 0

Answer:

10ˣ² +19ˣ + 6

Step-by-step explanation:

5ˣ(2x + 3) + 2 (2x + 3 )

10x² + 15x + 2(2x + 3 )

10x² + 15x + 4x + 6

= 10x² + 19x + 6

Slav-nsk [51]2 years ago
4 0
(5x+2)(2x+3)

5x(2x+3) + 2(2x+3)

10x^2 + 15x +2(2x +3)

10x^2 + 15x + 4x +6

Add like terms

15x + 4x= 19x

10x^2 +19x +6
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Which Number Is x, You Didnt Specify

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3 years ago
What is the area of a semicircle whose perimeter is 72cm
Nuetrik [128]

Answer:

A = 307.9 sq/cm

Step-by-step explanation:

Find the radius of the semi-circle

diameter + half the circumference = 72 cm

2r + pi*r = 72

r(2+pi) = 72

 

r = 72%2F%28%282%2Bpi%29%29

r = 14

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what will be the area of that semicircle?

A =1%2F2*pi%2A14%5E2

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3 years ago
If I had 10 cookies and promised my friend to give them 2 how many cookies will i have
Ksivusya [100]

Answer:

8 cookies

Step-by-step explanation:

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6 0
3 years ago
Read 2 more answers
Alex and payton each have a favorite pancake recipe. Alexs recipe uses 7 1/2 cups of flour for 5 batches, paytons recipe uses 3/
Elina [12.6K]

Answer:

9/4z cups

Step-by-step explanation:

Alex recipe uses 7 1/2 cups of flour for 5 batches

Cups of flour per batch = 7 1/2 cups ÷ 5 batches

= 15/2 ÷ 5

= 15/2 × 1/5

= (15*1)/(2*5)

= 15/10

Alex recipe per batch= 3/2 cups of flour per batch

paytons recipe uses 3/4 cup of flour more per batch than alexs recipe

Payton's recipe per batch = Alex recipe per batch + 3/4 cups

= 3/2 + 3/4

= (6+3)/4

= 9/4 cups of flour

Payton's recipe per batch = 9/4 cups of flour

What expression can be used to determine the number of cups of flour used to make z batches of paytons pancake recipe

Payton's recipe for z batches = Payton's recipe per batch * number of batches

= 9/4 cups * z batches

= 9/4z cups

Payton's recipe for z batches = 9/4z cups

3 0
3 years ago
Solve for the variable x+9=12
labwork [276]

Answer:

Step-by-step explanation:

subtract 9 from both sides

x=3

4 0
3 years ago
Read 2 more answers
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