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SpyIntel [72]
3 years ago
15

9

Mathematics
1 answer:
Brums [2.3K]3 years ago
8 0

Answer:

9x?lax+1)-1(2x+i)=0 p²-8p+4=0. (2x+1)(9x2-1)=0. 0-81764-40X4). (2x+1)(3x +1 (3x-1)=0 x= -1/2 x=-1/2 x=1/3. P= 843-4+213 x={-1/23 - 1 3 3 3 3 3. 4. Let 'n(x)=x2-Ox and g(x)=2x-7. Find all values of x, for which h(x) = g(x).

Step-by-step explanation:

Sheet #14-1. Quadratic Equations: Solving in Factored form. Algebra Common Core. MOVING WORDS. ... X+4 = 0 1 x +9=0 nr 3-01n-10-0 h=0 h-14=0. -4 -4 -9 -9. -3-3 tiu to. +14 114. X = -4 x=-9 n=-31 n =10 h = 14.

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2 years ago
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Let ff be the function that assigns to each student in the class her biological mother.
hoa [83]

Answer:

a) There cannot be sibling in the class.

b) This larger function would have an inverse only if there are no siblings studying in the same school.

Step-by-step explanation:

The inverse of a function f is a function g that "reverses" f. In other words, if the function f is applied to an x and it gives a result of y, then applying the function g to y gives the result of x.  f(g(x)) = x.

For a function f to have an inverse, the function f has to give only one value y, when applied to an x.

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So now, we have that f assigns each student in the class her biological mother.

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And Y refers to their biological mother.

If we want f to have an inverse, then each mother should be assigned to only one student.

This means that the condition that must be true is that there cannot be brothers/sisters in the same class (for example, twins).

b.  If we enlarged the domain to include all students in the school, would this larger domain function have an inverse.

Applying the same thinking, for f to have an inverse, every mom should be assigned to only one student.

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8 0
3 years ago
A bag contains 3 red marbles 4 blue marbles and 7 Green marbles if two marbles are drawn out of the bag what is the probability
mr_godi [17]

Answer:

0.368

Step-by-step explanation:

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than again a second ball is drawn, number of balls left= 14-1=13

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P(R)=\frac{2}{13}

Total probability=\frac{3}{14}+\frac{2}{13}

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Hence, the correct answer is 0.368

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