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topjm [15]
2 years ago
9

Explain how the distributive property helps us multiply the following polynomials and why and how the final products differ: (a

+ b)^2, (a – b)^2, and (a - b)(a + b).
Mathematics
1 answer:
koban [17]2 years ago
5 0

Answer:

(a+b)^2 = a^2 + 2ab + b^2

(a-b)^2 = a^2 - 2ab + b^2

(a-b)(a+b) = a^2 - b^2

Step-by-step explanation:

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Area of sector................................
sveticcg [70]

Answer:

A ≈ 25.1 cm²

Step-by-step explanation:

the area (A) of the sector is calculated as

A = area of circle × fraction of circle

  = πr² × \frac{\frac{4\pi }{9} }{2\pi }

  = π × 6² × \frac{\frac{4\pi }{9} }{2\pi }

  = 36π × \frac{\frac{4\pi }{9} }{2\pi }

  = 18 × \frac{4\pi }{9}

  = 2 × 4π

  = 8π

  ≈ 25.1 cm² ( to the nearest tenth )

3 0
2 years ago
HURRY PLEASE Which function is the inverse of f(x) = -5x – 4?
vagabundo [1.1K]

Answer:

f^-1(x)= -x/5 - 4/5

Step-by-step explanation:

7 0
2 years ago
Please help me answer this question!!!
-Dominant- [34]

Answer:

19

Step-by-step explanation:

The triangle is an isosceles and so angle SRT and angle STR are equal

also:

Angle SRT and angle STU are supplementary so their sum is equal to 180

7x + 2x + 9 = 180 add like terms

9x + 9 = 180 subtract 9 from both sides

9x = 171 divide both sides by 9

x = 19

3 0
2 years ago
Suppose c was a total membership cost for m the two equations that model c are c=30m+50 an c=20m+100
Maksim231197 [3]

Answer:

5 months

Step-by-step explanation:

Given

c = 30m + 50

c = 20m + 100

Required [Missing from the question]

At what month will the cost be equal

To do this, we equate both expressions

c = c

This gives:

30m + 50 = 20m + 100

Collect like terms

30m - 20m = 100 - 50

10m = 50\\

Solve for m

m = \frac{50}{10}

m = 5

8 0
2 years ago
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dlinn [17]

Answer:

put the right point at 80,12 and put the point on the left at 0,0

Step-by-step explanation:

6 0
2 years ago
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