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lidiya [134]
3 years ago
11

Expanded form of (x+a)(x+b)

Mathematics
2 answers:
garri49 [273]3 years ago
5 0
The correct answer is x^2+xb+ax+ab
GenaCL600 [577]3 years ago
3 0

Answer:

2x (a+b)

Step-by-step explanation:

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Solve for x because it was too hard to me
Yuri [45]
This is tricky
lets try  substituting  y = √)6x - 9)

√(6 - y) + √(6x + y) = √6

squaring both sides:-

6 - y + 6 + y - 2√(6 - y)(6 + y) = 6
12 - 2√(6 - y)(6 + y) = 6
√(6 - y)(6 + y) = (6-12) / -2 = 3
Squaring both sides:-
(6 - y)(6 + y) = 9
36 - y^2 = 9
y^2 = 27
y = +/-√27

√(6x - 9) = +/- 27

6x - 9 = 729

x = 738/6  =  123

This cannot be a solution because   we would have a negative value for the 
second square root

I would say that no solution exist.


8 0
3 years ago
Solve this equation using elimination: <br><br> 2X + 3Y = 16<br> 6X - 5Y = 20
Liono4ka [1.6K]
Another bag of marbles contains 6 blue marbles and 1 green marble. Mary and Frank will draw a blue marble followed by a green marble, without replacing the first marble. Mary says the probability will be 649, and Frank says that the probability will be17 . Who is correct?
8 0
3 years ago
Read 2 more answers
I need help finding the area and the equation to it.
RideAnS [48]

Hello from MrBillDoesMath!


Answer:

3 1/2   (i.e 3.5)


Discussion:

From the attached file, the area of the shaded triangle =

Area  =   <u>square</u> surrounding triangle -

               area triangle 1 - area triangle  2 -  area triangle 3


         = 4 * 4  -

             (1/2) (1 * 1)     -  (1/2) (3 * 4)  -   (1/2) (3 * 4)

         = 16  - 1/2 - 1/2 (12) - 1/2(12) =

         = 16 - 1/2 - 12 =

         = 4 - 1/2

         = 3 1/2


Where we have used that the area of a triangle =

(1/2) base * height.


Thank you,

MrB

6 0
4 years ago
Find the nth term for the sequence 30 27 24 21
patriot [66]
Assuming that the 30 is term #1 ..... The 'n'th term of the series is. T(n) = 33 - 3n or 3 (11 - n).
5 0
4 years ago
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The coordinates of points A and B are A (15, 20) and B (31,52). Which are the
Vika [28.1K]

Answer:

(19, 28)

Step-by-step explanation:

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