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Dafna11 [192]
3 years ago
9

Can someone help me

Mathematics
1 answer:
MakcuM [25]3 years ago
6 0

Answer:

1-b

2-d

3-f

4-d

5-e

6-c

7-h

8-g

9-a

10-e

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Evaluate the following polynomial. (32mn2 + 50m2n) - (10mn2 - 16m2n + 64).
zaharov [31]
I think the answer is 22mn2+66m2n-64 since there are no more like terms
7 0
4 years ago
Simplify the expression to a+bi form
Wewaii [24]

-\sqrt{100}-\sqrt{-192}+\sqrt4-\sqrt{-27}=(*)\\\\\sqrt{100}=10\ because\ 10^2=100\\\\\sqrt{-192}=\sqrt{-1}\cdot\sqrt{192}=i\sqrt{64\cdot3}=i\sqrt{64}\cdot\sqrt3=8i\sqrt3\\_{\sqrt{64}=8\ because\ 8^2=64,\ use\ \sqrt{-1}=i\ and\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}}\\\\\sqrt4=2\ because\ 2^2=4\\\\\sqrt{-27}=\sqrt{-1}\cdot\sqrt{27}=i\sqrt{9\cdot3}=i\sqrt9\cdot\sqrt3=3i\sqrt3\\_{\sqrt9=3\ because\ 3^2=9}\\\\(*)=-10-8i\sqrt3+2-3i\sqrt3=(-10+2)+(-8i\sqrt3-3i\sqrt3)\\\\=-8+(-11\sqrt3)i=-8-11\sqrt3i

6 0
4 years ago
Solve for :<br> -21 = 0.07:
Natasha2012 [34]

Answer:

-300

Step-by-step explanation:

-21 = 7x/100

-21=7x/2^2*5^2

x=-300

5 0
3 years ago
What are the ordered pairs of the
Vlad1618 [11]

Answer:

{x}^{2}  - 2x + 3 =  - 6x \\  =  {x}^{2}  - 2x + 6x + 3 = 0 \\  \\  =  {x}^{2}  + 4x + 3 = 0 \\  = (x + 1)(x + 3) \\  = x =  - 1and \: x =  - 3

3 0
3 years ago
The order of operations rules should include the fifth operation—raising a number to a power True or False
Rina8888 [55]

False, they already have that as a rule in the order of operations. That’s what PEMDAS stands for. The E stands for Exponents.

7 0
3 years ago
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