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3 years ago

Saraah wrote an expression on the board: -6 - 18. Which expression is equivalent to Jeremiah's expression? *

Mathematics

2 answers:

ruslelena [56]3 years ago

7 0

The answer is -6*(-18)

Alenkasestr [34]3 years ago

6 0

The answer is -6+(-18)
Explanation:
Remove the parenthesis
-6-18
Subtract 18 from -6
-24

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3 years ago

Read 2 more answers

describe the relationship between terms in each arithmetic sequence then write the next three terms in each sequence 8,18,28,38,

sweet [91]

Answer:

adding 10 to the term to get the next. Next 3 terms are 48, 58, 68

Step-by-step explanation:

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9) Find the average rate of change for the function modeled by the graph 5 points

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3 years ago

Fudgin [204]

It is B.
First you have to add -2.4 by itself until you get to 12(that is 5 times.) Then, you divide -2.4 by 2 and get -1.2. Next, add them! -12+-1.2=-13.2. After could how many times it took to get to -12 and the add the 1/2 or 0.5. So your answer is 5.5 or B!

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3 years ago

Find the equation of the axis of symmetry of the following parabola algebraically.

mr Goodwill [35]

Answer:

the equation of the axis of symmetry is $x=8$

Step-by-step explanation:

Recall that the equation of the axis of symmetry for a parabola with vertical branches like this one, is an equation of a vertical line that passes through the very vertex of the parabola and divides it into its two symmetric branches. Such vertical line would have therefore an expression of the form: $x=constant$ , being that constant the very x-coordinate of the vertex.

So we use for that the fact that the x position of the vertex of a parabola of the general form: $y=ax^2+bx+c$ , is given by:

$x_{vertex}=\frac{-b}{2\,a}$

which in our case becomes:

$x_{vertex}=\frac{-b}{2\,a} \\x_{vertex}=\frac{48}{2\,(3)} \\x_{vertex}=\frac{48}{6} \\x_{vertex}=8$

Then, the equation of the axis of symmetry for this parabola is:

$x=8$

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4 years ago