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NARA [144]
3 years ago
10

B(a + b) - a(a - b)

Mathematics
1 answer:
mixas84 [53]3 years ago
6 0

Answer:

Go to the website below this messages for the answer with step-bij-step explanation

Step-by-step explanation:

https://socratic.org/questions/how-do-you-simplify-b-a-b-a-a-b

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"Rebecca walks 100 feet in a straight line. She then turns 20 degrees to her left and walks another 100 feet, and then turns 20
iragen [17]

Answer:

1,800 ft

Step-by-step explanation:

Rebecca will walk in the pattern of a regular polygon with 'n' sides and internal angles of 160 degrees (180 at a straight line - 20 degrees from each turn).

The equation that describes the internal angle of a regular polygon is:

A = \frac{(n-2)*180}{n}

For A = 160 degrees:

160n=(n-2)*180\\(180-160)n=360\\n=18\ sides

If each side is 100 ft long, the total distance that Rebecca has walked is:

d = 18*100\\d=1,800\ ft

She walked 1,800 ft.

5 0
3 years ago
Write an expression that is equivalent to 2/3(4x + 9). (4 points) Select one: a. 8/3x + 6 b. 8/3x + 9 c. 2/3x + 6 d. 2/3x + 9
Lady_Fox [76]
You have to distribute the 2/3 across the equation.

8/3x+18/3 which is 8/3x+6 so the answer is a

I hope that helps
3 0
3 years ago
Solve for the missing angles / show your work! Help pls!
Alenkasestr [34]

Answer:

sum=(n-2)*180

sum=(4-2)*180

sum=2*180

sum=360º

if T=K, T=100º

360-(100+100+20)=E

E=360-220

E=140º

3 0
3 years ago
Polynomial factoring: <br> 4x^3 - x^2 - 4x + 1
expeople1 [14]
The answer is (4x-1)(x-1)(x+1)
5 0
2 years ago
May someone help me with this problem please? thanks anyways.
lyudmila [28]

Answer:that is very hard never have done that yet

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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