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natali 33 [55]
3 years ago
9

Find the slope of the line passing through the points (-7, 8) and (5.-7).

Mathematics
1 answer:
baherus [9]3 years ago
8 0

Answer:

slope is 15/-12

Step-by-step explanation:

:)

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I need the answer fore both plsss
grandymaker [24]

Answer:  6i) 6a² - 2ab

               6ii) -2b³

               6iii) b³ + 7b² - 49b

<u>Step-by-step explanation:</u>

6i)   (a + b)(5a - 3b)             +    (a - 3b)(a - b)

=    5a² - 3ab + 5ab - 3b²   +    a² - ab - 3ab + 3b²

=    5a² + 2ab - 3b²             +   a² - 4ab + 3b²

= 6a² - 2ab

6ii)    (a - b)(a² + b² + ab)              -  (a + b)(a² + b² - ab)

=   a³ + ab² + a²b - ab² - a²b - b³ -  (a³ + ab² - a²b -ab² + a²b + b³)

=   a³ - b³                                      -  (a³ + b³)

=   a³ - b³                                      - a³ - b³

= -2b³

6iii) (b² - 49)(b + 7)             +     343

=     b³ + 7b² - 49b - 343    +    343

=     b³ + 7b² - 49b

You are allowed a maximum of 3 questions.

Please post #7 on a different question.

5 0
3 years ago
URGENT TEST I HAVE!!!!
Lerok [7]

Answer:

I think they are asking the area of the triangle so we are going with that.

Step-by-step explanation:

Easiest way to do this is find the area of the incomplete square, and then cut that in half for the triangle.

so it is 4 cm wide

and 8 cm tall

length x width = area

8 x 4 = 32

32/2 = 16

So your answer should be 16 cm

6 0
3 years ago
HELP ME PLEASE QUICKLY FAST!
RoseWind [281]
The answer is 13. You can find this out by using the PEMDAS method. (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction.)
5 0
3 years ago
Read 2 more answers
What is 120 degrees in radians?
gizmo_the_mogwai [7]

Answer:2.0994

Step-by-step explanation:

You would want to set up the equation like this

120°×π/180 which will then be 2.094rad

3 0
3 years ago
What is the retail price of the original price was $50 and the markdown was 22%
boyakko [2]
Hey You! 

22 / 100 * 50 = 11

50 - 11 = 39

The retail price is $39. 
7 0
3 years ago
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