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3 years ago

What is f(3)? –9 –1 1 9

Mathematics

2 answers:

nydimaria [60]3 years ago

5 0

<h2>It's the last answer, or 9. </h2>

<em>Explanation - </em>Questions that tell you to find F(X) want you to go on the X column, not the column that says F(X.)

Now it says to find F(3), so go down the X column until you find 3. The number to the right of 3 is 9, so your answer must be 9.

Pavlova-9 [17]3 years ago

4 0

The second because that the correct answer

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45 degreese is used in a pie chart to reperesent 6 people. How many people were there altogehter?

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We can solve this problem by the rule of three.
A complete pie chart has 360º.

45º----------------------6 people
360º-------------------- x

x=(360º*6 people) / 45º=48 people.

Answer; 48 people.

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3 years ago

Simplify: 2log2(8x)

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3 years ago

Solve the equation using square roots 2x^2=242

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3 years ago

A software designer is mapping the streets for a new racing game. all of the streets are depicted as either perpendicular or par

ElenaW [278]

The equation of the central street PQ is -1.5x - 3.5y = -31.5 option (b) is correct.

<h3>What is a straight line?</h3>

A straight line is a combination of endless points joined on both sides of the point.

We have a straight line:

$-7x+3y=-21.5$

Convert it to the general form given below:

$\rm y=mx+c$

$\rm 3y=-21.5+7x\\\\ \rm y = \frac{-21.5}{3}+\frac{7}{3}x$ or

$\rm y = \frac{7}{3}x-\frac{21.5}{3}$

$m = \frac{7}{3}$ (Slope of AB line)

For the slope(m') of the PQ line:

$\rm m'=-\frac{1}{m}$ ( because AB and PQ are perpendicular to each other)

$\rm m' = -\frac{3}{7}$

We know the:

$\rm (y-y')=m'(x-x')$

Where (x', y') = (7, 6), we get:

$\rm (y-6)=-\frac{3}{7} (x-7)$

$\rm 7(y-6)=-3 (x-7)\\\\\rm 7y-42= -3x+21\\\\\rm 7y= -3x+21+42\\\\\rm 3x+7y=63$

$\rm -1.5x-3.5y=-31.5$ (multiply by -1/2 on both sides)

Thus, the equation of the central street PQ is -1.5x - 3.5y = -31.5

Learn more about the straight line.

brainly.com/question/3493733

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2 years ago

What is the solution to 9+4n -79

Vlada [557]

Answer:

17.5

Step-by-step explanation:

You have to find n right?

9+4n-79 = 0

-> 4n = 70

-> n = 17.5

8 0

3 years ago