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wel
3 years ago
5

What is 7-(-19)-18(-19)+18

Mathematics
1 answer:
riadik2000 [5.3K]3 years ago
8 0

Answer:

386

Step-by-step explanation:

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Describe the translation in each function. Then graph the function.
Vladimir79 [104]

It's a Quadratic that doesn't have any real roots as the parabola doesn't cross the x-axis.

For graphing:

If you're familiar with the parabola of y=x^2, then you could graph that but just translate it upwards by +4 on the y such that f(x)+4 will be equal to it.

If you aren't, then we know the y-intercept is 4, and that's also the point of the minimum point of the curve. If I were you, I'd write a table of some of the integer values:

x y

-2 8

-1 5

0 4

1 5

2 8

The value of y is the same for x and -x as anything squared is positive.This means that there is a line of symmetry in the y-axis.

This then makes it much easier to graph, simply place these points on the graph and make sure the curve is exponential. This means the gradient (steepness) gets greater the bigger the value of x.

8 0
3 years ago
Susie plans to run 2 miles per day the first week and then increase the daily distance by a half a mile each of the following we
AlekseyPX

Due to length restrictions, we kindly invite to see the explanation below to know the answer with respect to each component of the question concerning linear equations.

<h3>How to determine a linear equation describing the daily distance of a runner</h3>

In this question we need to derive an expression of the <em>daily</em> distance as a function of time. Now we proceed to complete the components:

  1. <em>Linear</em> equations have an <em>independent</em> variable (t - time) and a dependent variable (x - daily distance).
  2. We notice that the daily distance increases linearly in time, then then we have the following pattern:

    t          1            2            3             4            5              6
    x          2          2.5          3           3.5           4             4.5
  3. The equation that represents the n-th term of the sequence is x(n) = 2 + 0.5 · (n - 1).
  4. The week when Susie will run 10 miles per day is:

    10 = 2 + 0.5 · (n - 1)
    8 = 0.5 · (n - 1)
    n - 1 = 16
    n = 17

    Susie will run 10 miles per day in the 17th week.
  5. It is not reasonable to think that pattern will continue indefinitely as it is witnessed in the difficulties experimented by <em>fastest</em> runners in the world to increase their <em>peak</em> speeds.
  6. A marathon has a distance of 26 miles, then we must solve the following equation:

    26 = 2 + 0.5 · (n - 1)
    24 = 0.5 · (n - 1)
    48 = n - 1
    n = 49

    Susie should start her training 49 weeks before the marathon.

To learn more on linear equation: brainly.com/question/11897796

#SPJ1

7 0
2 years ago
Is <img src="https://tex.z-dn.net/?f=y%20%3D%20x%5E%7B2%7D" id="TexFormula1" title="y = x^{2}" alt="y = x^{2}" align="absmiddle"
Ratling [72]

Answer:

No

Step-by-step explanation:

A linear equation is an equation of a straight line, which means that the degree of a linear equation must be

0 or 1 for each of its variables. In this case, the degree of variable y is 1

and the degree of variable x is 2.

Not Linear

8 0
4 years ago
What is soil and rocks
Scrat [10]

Answer:

soil and rocks are Rocks are made of one or more minerals.  Soil is formed of fine rock particles mixed with air, water and particles from dead plant and animal matter. There are three main types of soil which are classified according to the amount of sand and clay in them. i hope this helps

Step-by-step explanation:

6 0
3 years ago
A square patio has an area of 196 m² find the dimensions of the patio
damaskus [11]
It is a square, so all the sides are equal in length.
√196 = 14. 
The sides are 14 by 14 meters. 
4 0
3 years ago
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