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soldier1979 [14.2K]
3 years ago
10

If f(x)=3x-9, what is the value of f(-8)

Mathematics
1 answer:
elena-14-01-66 [18.8K]3 years ago
6 0

1/3x Put the -8 in the place of the f(x) the subtract 9 you´re left with 1 then divde by 3x  and you're left with 1/3x

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Which has the bigger surface area? Jamal's, which is 3 by 3 by 4 ft, or Andy's, which is 4 by 2 by 5 ft and why?
oksano4ka [1.4K]

Jamal-3 x 3 = 9 x 4 = 36


Andy-  4 x 2 = 8 x 5 = 45


Andy's surface area is bigger.

6 0
3 years ago
Find the slope of the line that passes through (4.4) and (5,3)
Vera_Pavlovna [14]

Answer:

- 1

Step-by-step explanation:

Slope of the line

=  \frac{3 - 4}{5 - 4}  \\  \\  =  \frac{ - 1}{1}  \\  \\  =  - 1

7 0
3 years ago
. A salesman sold 300 bags of maize to a retailer at Kshs .2000 each .He was given a commission of 3%.The salesman allowed a dis
nalin [4]

Answer:

The discount allowed per bag is kshs 4

while the discount allowed on all the 300 bags is kshs 1,200

Step-by-step explanation:

Here, we are interested in calculating the discount allowed on the sales of the bag of maize.

From the question, we are told that the sales man allowed a discount of 0.2% on the maize sold.

Now, to find the amount of this, we proceed as follows;

What we simply need to do is to find 0.2% of the each of the price of the maize bags, and then we can proceed to find the total discount given on all maize bags sold.

The discount on each bag of maize would be;

0.2% of kshs 2000

That would be;

0.2/100 * 2,000 = 400/100 = kshs 4

Since there are 300 bags, the total amount of discount allowed is 300 * kshs 4 = kshs 1,200

8 0
3 years ago
The output is three less than the input
Liono4ka [1.6K]
Call the output f(x)
Call the input x
f(x) = x - 3
8 0
3 years ago
Read 2 more answers
The graph shows where four friends' houses are located. How many units is it between Brian's house and Sue's house? −11 units −9
nexus9112 [7]

Given

Brian's house: (-7, 9)

Sue's house: (-7, -2)

Find

The number of units between Brian's house and Sue's house.

Solution

Both Brian and Sue live on the "street" x=-7, so the distance between their houses is the distance between -2 on that street and +9 on that street. We always consider distance to be positive, so it doesn't matter whether we start at Brian's house and go -11 units to Sue's house, or start at Sue's house and go +11 units to Brian's house. Either way, we travel 11 units.

_____

"Displacement" is another matter. That has a sign associated with it and there is always a reference direction that is positive. Movement in the opposite direction results in a negative displacement. "Distance" is always positive.

8 0
3 years ago
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