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Tom [10]
2 years ago
12

Determine f(-a) where f(x) = x2 - 6x and simplify.

Mathematics
1 answer:
jeka57 [31]2 years ago
5 0

Answer:

6a

Step-by-step explanation:

replace x with -a

-2a -6(-a)

-2a +8a

6a

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What is 2x(x+5)=4 using the quadratic formula
antoniya [11.8K]
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4 0
3 years ago
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tankabanditka [31]
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6 0
3 years ago
two runners start 30kilometer apart and run toward each other. they meet after 3hours. One Runner runs 2 kilometers per hour fas
belka [17]

Let the slower runners speed be X kilometers per hour.

Then the faster runners speed would be X+2 kilometers per hour.


The formula for distance is Speed times time.

The distance is given as 30 kilometers and time is given as 3 hours.


Since there are two runners you need to add the both of them together.

The equation becomes 30 = 3x + 3(x+2)

Now solve for x:

30 = 3x + 3(x+2)

Simplify:

30 = 3x + 3x +6

30 = 6x + 6

Subtract 6 from each side:

24 = 6x

Divide both sides by 6:

x = 24/6

x = 4


The slower runner ran at 4 kilometers per hour.

The faster runner ran at 4+2 = 6 kilometers per hour.


3 0
3 years ago
HELPPPPPP<br><br> what is x minus 1 x-1
Evgesh-ka [11]

Answer:

-1

Step-by-step explanation:

x - 1x - 1

1x = x

x - x -1

x - x = 0

0 - 1 = -1

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3 0
3 years ago
What is the image of the point (-9,-1) after a rotation of 270 degrees counterclockwise about the origin?
Hunter-Best [27]

Answer:

(-1,9)

Step-by-step explanation:

coortinate point is (-9,-1)

use formula

(x,y)=(y,-x)

(-9,-1)=(-1,9)

3 0
3 years ago
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