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yuradex [85]
3 years ago
13

A submarine was situated 800 feet below sea level. If it ascends 350 feet,

Mathematics
1 answer:
Lesechka [4]3 years ago
4 0

Answer:

450 feet below sea level

Step-by-step explanation:

<em>ascend = move up = add</em>

<em>800 ft below sea level = -800</em>

-800 + 350 = -450

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Point A(12, 0) is on the x-axis and point B(0,−5) is on the y-axis. Find the distance between points A and B
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sukhopar [10]

Answer:

Step-by-step explanation:

You need to assume that the slope between the dependent Varian and the numerical independent variable is zero.

In regression analysis, to find the effect of one independent variable on the dependent variable, there has to be no interference from the other independent variables whether they be categorical (dummy) or numerical independent variables.

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When a dummy independent variable is included in a regression model, to know the effect of that dummy or category (e.g. day =1, night =0) on the dependent variable, the influence of the numerical independent variable has to be removed temporarily.

In a regression equation,

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a is the intercept on the vertical axis on the graph

b is the slope between the dependent variable Y and the independent numerical variable X

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djyliett [7]

Answer:

The graph is positive and decreasing for all real values of x where x < -1

Step-by-step explanation:

we have

f(x)=(x-3)(x+1)

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using a graphing tool

see the attached figure

we know that

In the interval (-∞,-1) ---> the function is positive and decreasing

In the interval (-1,1) ---> the function is negative and decreasing

In the interval (1,3) ---> the function is negative and increasing

In the interval (3,∞) ---> the function is positive and increasing

therefore

The graph is positive and decreasing for all real values of x where x < -1

8 0
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