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creativ13 [48]
3 years ago
8

-11x-7y=-56 slope intercept

Mathematics
1 answer:
yuradex [85]3 years ago
3 0

Answer:

-11/7

Step-by-step explanation:

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Multiply these binomials using foil method (b+3)(b-9)
sleet_krkn [62]
FOIL stands for first, outer, inner, and last.
So, you multiply the first terms together, the outer terms together, the inner terms together, and then the last terms together.
(b+3)(b-9)
b^2-9b+3b-27 Then simplify
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3 years ago
Q.Take out the area of the trapezium.<br>Parallel sides-15,23<br>Non parallel sides-10,8​
Dmitriy789 [7]

Answer:

Step-by-step explanation:

Area of a trapezium is the average of the parallel sides times the distance between them.

If we subtract 15 units from each of the parallel sides, we end up with a triangle that has two sides of 8 units and one of 10 units. One of the 8 unit sides is the base and we need to find the height h which is perpendicular to this base.

Let the base be split into two segments, call one A, the other will be 8 - A

From Pythagoras.

10² - A² = h² = 8² - (8 - A)²

10² - A² = 8² - (8 - A)²

100 - A² = 64 - (64 - 16A + A²)

100 - A² = 64 - 64 + 16A - A²

     100  =  16A

         A = 6.25

h = √(10² - 6.25²)

h = √60.9375  

A = ½(15 + 23)√60.9375  

A = 148.31870246... ≈ 148.3 cm²

3 0
3 years ago
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PLEASE HELP!<br> answer number 12 and 11. <br> thank you so much!
solniwko [45]

Answer:

11: B

12: A

Step-by-step explanation:

7 0
3 years ago
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I just wanna say i hope your having a good day! and you are enough! keep going u got this!
Vladimir79 [104]

aww,thank you ^^

i hope you're having a good day as well

8 0
3 years ago
Please help me what’s the answer??!!!!!!
Stells [14]

Answer:

C 1/3

Step-by-step explanation:

RISE /RUN

1=rise

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3 years ago
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