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mash [69]
3 years ago
14

Helppppppppppppppppppppppppppppppppppp

Mathematics
1 answer:
drek231 [11]3 years ago
3 0
Answer: the third option m(x) = - 7x

Justification:

1) For a function to have inverse function, the original function has to be one to one. This is for the original function two (or more) images cannot have different inputs. That condition is satisfied by the function m(x) = - 7x, since it is a straigh line.

2) the function b (x) = x^2 + 3 is a parabola. That means that, except by the vertex, every image is realated with two inputs.

For example, b(x) = 103 => x^2 = 103 - 3 = 100 => x = 10 and x = -10.

3) For the function d(x) = - 9, you cannot tell the input value for the image because it is the same image for any value of x.

4) The function p(x) = |x| also has a pair of images for the same value of x (excpet for the vertex).

For example, for x = - 100 and x = 100, p(x) = 100, so you cannot tell the x value given the p(x) value.


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Which statement is correct?The enthalpy of the reaction is –184.6 kJ, and the reaction is exothermic.
mafiozo [28]

Answer:

The correct statements are :

1. The enthalpy of the reaction is -184.6 kJ, and the reaction is exothermic.

2. The enthalpy of the reaction is 184.6 kJ and the reaction is endothermic.

Step-by-step explanation:

Enthalpy of reaction is amount of heat absorbed or released during the reaction.

If energy is required, enthalpy of reaction is positive and if energy is released the enthalpy of reaction is negative.

Exothermic reaction: The chemical change is accompanied by the release of heat energy

Endothermic reaction: The chemical change is accompanied by the absorption of heat energy.

So, from the above definitions, it is clear that the enthalpy of reaction of a exothermic reaction is negative and that of a endothermic reaction is positive.


6 0
3 years ago
Read 2 more answers
The Venn diagram above represents the students who were sick one day in January at a Chicago high school. 80 students had only a
mrs_skeptik [129]

Answer:

370

Step-by-step explanation:

The venn diagram corresponds to students who were sick in January at a Chicago high school.

Students who had only fever= n(A) = 80

Students who had only headache= n(B) = 90

Students who had only cough  = n(C) =60

Students who had both cough and fever = n(AC) = 10

n(AB) = 40:n(BC) = 30  n(ABC) = 20

Hence total students = 800

no of students who were absent due to other reasons = 100

REmaining students = 700

Students who were sick = sum of all =330

So no of students who were at school = 700-330 = 370

5 0
3 years ago
The transactions of Spade Company appear below.
LekaFEV [45]

Answer:

In need of points

Step-by-step explanation:

7 0
3 years ago
If you vertically stretch the absolute value parent function, fx) = [X], by a
Alex777 [14]
The correct answer is A
7 0
3 years ago
If the volume of the rectangular prism is represented by 6x^2-2x+8 and the base area is 2x-4 which expression represents the hei
MissTica
Check the picture below.

\bf 6x^2-2x+8=(2x-4)h\implies \cfrac{6x^2-2x+8}{2x-4}=h
\\\\\\
\cfrac{3(2x^2-x+4)}{2(x-2)}=h\implies \cfrac{3(3x-4)(x+1)}{2(x-2)}=h

8 0
3 years ago
Read 2 more answers
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