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3 years ago

What can be concluded about the relationship between the two functions?

1 answer:

5 0

<span>Both variables are categorical. We analyze an association through a comparison of conditional probabilities and graphically represent the data using contingency tables. Examples of categorical variables are gender and class standing.</span>

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Simplify the numerical expression. 125.7 - (-1.82).

sergey [27]

125.7 - ( - 1.82 )
125.7 + 1.82
127.52

6 0

3 years ago

An aircraft factory manufactures airplane engines. The unit cost C (the cost in dollars to make each airplane engine) depends on

butalik [34]

Answer:

90 engines must be made to minimize the unit cost.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

$f(x) = ax^{2} + bx + c$

It's vertex is the point $(x_{v}, y_{v})$

In which

$x_{v} = -\frac{b}{2a}$

$y_{v} = -\frac{\Delta}{4a}$

Where

$\Delta = b^2-4ac$

If a>0, the minimum value of the function will happen for $x = x_v$

C(x)=x²-180x+20,482

This means that $a = 1, b = -180, c = 20482$

How many engines must be made to minimize the unit cost?

x value of the vertex. So

$x_{v} = -\frac{b}{2a} = -\frac{-180}{2(1)} = 90$

90 engines must be made to minimize the unit cost.

3 0

3 years ago

Find the values of x that satisfy

mr_godi [17]

Setup 2 problems
2x - 7 < 15   and    2x - 7 > -15
2x < 22                  2x > -8
x < 11                    x > -4

Or you can write it -4 < x < 11

7 0

3 years ago

What is the equation of the line that passes through the point (-3,4) and has a slope of 1?

yKpoI14uk [10]

Answer:

Y=x + 7

slope = 1, the coefficient of the x term, an implicit one

plug the point y=4, x=-3 into the equation, 4=-3+7 = 4, it passes through the point (-3,4)

Step-by-step explanation:

hope it help

8 0

3 years ago

An equation with more than one operation is called

exis [7]

Divide subtract multiply addition

4 0

3 years ago