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Sveta_85 [38]
3 years ago
5

The area of a poster board is x2 + 3x - 10 inches. The width is x - 2 inches. Find the dimensions of the poster board when x = 1

4.
Mathematics
1 answer:
PIT_PIT [208]3 years ago
6 0
The answer is 228 inches
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A contradiction has no solutions. True or False?
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Answer:

false

Step-by-step explanation:

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3 years ago
Find the smallest zero for the function h(x) = 4x^2 - 8x - 60
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Note that h(x) = 4x^2 - 8x - 60 factors to 4(x^2 - 2x - 15), and that the roots (zeros) of (x^2 - 2x - 15) are -5 and +3.  Thus, the smallest zero is -5. 
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The figure is made up of two shapes, a semicircle and a square.
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Perimeter is adding all sides so the answer will be 12(pi) + 46, hope this helps!!
6 0
3 years ago
3. The functions f and g are defined by f: x → ax – b where a and b are constants and g: x → X+4.
valentinak56 [21]

Answer:

fg(2) = 9 means that f(g(2)) = 9

We know that g(2) = 6

So f(6) = 9 which means that

6a - b = 9 (note 1)

And we know that g(f(1/2)) = 2

And we know that f(1/2) = 1/2(a) - b

So g(1/2(a) - b) = 2

Meaning that 1/2(a) - b + 4 = 2

So 1/2(a) - b = - 2 (note 2)

Using note 1 and 2 we can solve the equation

11/2(a) = 11 so a = 2 and b = 3

5 0
3 years ago
F + H ARE WRONG<br><br> HELP ME JIM!
RSB [31]
Reason F should be "CPCTC" which stands for "corresponding parts of congruent triangles are congruent". Its like saying "if two houses are identical, then the front doors should be the same". The houses in the analogy are the triangles, while the front doors are the corresponding parts. So if triangle DEC is congruent to triangle BEC, then the corresponding parts angle DEC and angle BEC are congruent.

===========================================

Reason H is "linear pair postulate" which says that if two angles form a linear pair then they are considered supplementary. This is simply what "supplementary" means. The two angles add to 180 degrees. A "linear pair" is where you have two angles that are adjacent and the angles combine to form a straight angle (180 degrees).

===========================================

Side note: It seems like some of this proof has been cut off. There should be more lines to this proof because the last line is always what you want to prove. In this case, the thing we want to prove is "angle DEC and angle BEC are right angles" so that should be the last statement. 

8 0
3 years ago
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