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3 years ago

-3x + 5 ≤ 17 and 5x + 3 ≤ 18?

Mathematics

1 answer:

Andru [333]3 years ago

3 0

Answer:

1/4 ≤x≤3

Step-by-step explanation:

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The population of the country in 2003 was blank million.

kondor19780726 [428]

Solution

We are given the population to be

$A=930.1e^{0.02t}$

The population of the country in 2003 is

$930.1millions$

8 0

2 years ago

Write a quadratic equation in standard form given the roots: -3 and 4/5

Westkost [7]

Answer: $x^{2}+\frac{11x}{5}-\frac{12}{5}$

Step-by-step explanation:

The roots are really just what x is when the equation is equal to zero. So, an equation with these roots would look like this:

(x+3)(x-4/5)=y

however, this is not standard form. To get standard form we will need to expand the equation using FOIL.

x^2+3x-4x/5-12/5=

x^2+11x/5-12/5

and that would be your answer.

This stuff is a bit tricky and it get annoying with those pesky fractions. If you have any questions just comment.

8 0

2 years ago

18.07 to the nearest whole number

Nadusha1986 [10]

Answer:

Step-by-step explanation:

18.07 is 0.07 away from 18 and 0.93 away from 19 therefore 18.07 is closest to 18

7 0

3 years ago

What is the mean absolute deviation of attendance at the 4 middle school dances?

Mice21 [21]

Answer:

Hope this helps you to understand, to do the problem and for future problems!

Step-by-step explanation:

All you have to do is take the numbers, add them, then divide them by how much there are. Once you did that if its a negative you just turn it positive bc its absolute.

4 0

4 years ago

13 points if you can answer the problem AND teach me how to answer the problem

Harman [31]

<h3>Answer:</h3>

Y = 3X + 12

<h3>Explanation:</h3>

You are given several points on the line, so you can use a couple of them to find the slope, then write the equation in point-slope form and rearrange it to the desired form.

... slope = (change in Y)/(change in X)

Using the first two points, this is ...

... slope = (69 -51)/(19 -13) = 18/6 = 3

<em>Point-Slope Form</em>

The point-slope form of the equation of a line is usually written ...

... y -y1 = m(x -x1) . . . . . . where m = slope, (x1, y1) = point

This can be put into a y= form by adding y1:

... y = m(x -x1) +y1

<em>Your Equation</em>

Filling in m=3, (x1, y1) = (13, 51), the equation becomes

... y = 3(x -13) +51

... y = 3x -39 +51 . . . . . eliminate parentheses

... y = 3x +12 . . . . . . . . . simplify to slope-intercept form

_____

<em>Alternate Solution</em>

Having found the slope to be 3, you can write the slope-intercept form and fill in what you know.

... y = mx + b . . . . . slope-intercept form

... 51 = 3·13 +b . . . . slope-intercept form with slope and first point filled in

... 51 -39 = b = 12 . . . . equation solved for <em>b</em> by subtracting 39

Now you know that the equation is

... y = 3x +12

3 0

3 years ago