3 years ago

Factor this? Subtract the following polynomials. (3x^2 - 5x + 12) - (5x^2 + x -11)

Mathematics

1 answer:

Papessa [141]3 years ago

5 0

The answer is -2x^2-6x+23. all you have to do is just combine like terms

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Point C is twice as close to point B as it is to point A. If point A is at -30 and point B is at 30, what are two possible value

arsen [322]

different between A and B

=30-(-30)

=60

position of C from A or B

=(60÷3)×2

=40

possible value of c

=-30+40

=10

possible value of c

=30-40

=-10

8 0

3 years ago

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A line that forms and 90° angle with the original line is:

Nikolay [14]

Answer:

a right angle

Step-by-step explanation:

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2 years ago

Simplify the expression with using scientific notation (4 times 10 8)2

kifflom [539]

The scientific notation:

$a\cdot10^n\\\\1\leq a < 10;\ n\in\mathbb{Z}$

$(4\cdot10^8)^2=4^2(10^8)^2=16\cdot10^{8\cdot2}=16\cdot10^{16}\\\\=1.6\cdot10\cdot10^{16}=1.6\cdot10^{17}$

Used:

$(a\cdot b)^n=a^n\cdot b^n\\\\(a^n)^m=a^{n\cdot m}\\\\a^n\cdot a=a^{n+1}$

Answer: (4 × 10⁸)² = 1.6 × 10¹⁷

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3 years ago

What is the value of f^-1(-3)?

poizon [28]

Flip the curve over y = x then observe what is y when x = -3. You will find that $f^{-1}(x)=1.5$ .

Hope this helps.

8 0

2 years ago

Need answers ASAP! 7th Grade math!

kari74 [83]

Another way to name an angle is by the point where the angle is, so in your question, it is <F
Whenever they say <ABC (any random letters), the middle letter is another way to name it

7 0

2 years ago