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2 years ago

10

Evaluate the expression below when x = -2. x2 − 8 x + 6

1 answer:

IRISSAK [1]2 years ago

3 0

First, substitute -2 into each equation where there is an <span>x:
</span>(-2)2 -8<span>
</span>(-2) +6

Then multiply the -2 and the 2 in the first equation and add -2 and 6 in the second:
-4 -8
4

Lastly, subtract -4 and 8:
-12
4

Now you have you answers -12 and 4!

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$4.30 makeup; 40% discount; 6% tax

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3 years ago

In a graphing program, graph the following 4 functions in the same coordinate plane.

9966 [12]

See below for the changes when the exponential function is transformed

<h3>How to determine the effect of a</h3>

The exponential functions are given as:

$y = \sqrt x$

$y = 5\sqrt x$

$y = 14\sqrt{x$

$y = -2\sqrt{x$

An exponential function of the above form is represented as:

$y = a\sqrt{x$

See attachment for the graph of the four functions.

<u>When a is large</u>

This is represented by $y = 14\sqrt{x$

In this case, the curve of the base form $y = \sqrt x$ is vertically stretched and it moves closer to the y-axis

<u>When a is small</u>

This is represented by $y = 5\sqrt x$

In this case, the curve of the base form $y = \sqrt x$ is vertically stretched and it moves away from the x-axis

<u>When a is negative</u>

This is represented by $y = -2\sqrt{x$

In this case, the curve of the base form $y = \sqrt x$ is vertically stretched and is reflected across the y-axis.

Read more about function transformation at:

brainly.com/question/26896273

#SPJ1

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2 years ago

A figure is translated six units to the left and two units down. Which rule represents this translation?

Helga [31]

The answer would be d. because you’re moving back then moving downwards starting from 0 (the origin). Which would make x and y negative numbers.

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1 year ago

1) What percentage of 18 is 9

sasho [114]

Answer:

2%

Step-by-step explanation:

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2 years ago

Read 2 more answers

Solve the proportions 28/35=8/r

mash [69]

ANSWER

r = 10

EXPLANATION

To solve for r first we have to put r in the numerator. To do that, we have to multiply both sides of the proportion by r:

$\begin{gathered} \frac{28}{35}\cdot r=\frac{8}{r}\cdot r \\ \frac{28}{35}r=8 \end{gathered}$

Now, we have to multiply both sides by 35:

$\begin{gathered} \frac{28}{35}r\cdot35=8\cdot35 \\ 28r=280 \end{gathered}$

And finally divide both sides by 28:

$\begin{gathered} \frac{28r}{28}=\frac{280}{28} \\ r=10 \end{gathered}$

6 0

1 year ago