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TiliK225 [7]
1 year ago
6

Evaluate the function. f(x) = x² - 4x – 12 Find f(-7)

Mathematics
1 answer:
pashok25 [27]1 year ago
7 0

Answer:

Your answer is 65

Step-by-step explanation:

f(x) = x² - 4x - 12

f(-7) = (-7)² - 4 x (-7) - 12

= 49 - (-28) - 12

= 49 + 28 - 12

= 77 - 12

= <u>65</u>

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-3x - 3y - z= -6
kifflom [539]

Answer:

Ammm, I think the answer you have is wrong, but what I really think is that the equations you put in are not the right ones because the answer for these is "ugly" (decimals etc...). Want to check your equations?

Step-by-step explanation:

Here is a step by step explanation to your equations (I assumed +3z for the second but you can change it). You can edit it for your equations if you want to.

https://simplisico.com/share/q/QiWKOyN5uYgkSG4iBXOmdG0i

5 0
2 years ago
When two rays show a common endpoint they form an angel true or false
kotegsom [21]
When two rays show a common endpoint they form an angel : TRUE
7 0
3 years ago
The soccer team played 7 games and scored the following number goals in each game: 2, 1, 3, 5, 3, 1, 4. What was the median numb
soldi70 [24.7K]
Hey there!

Median number :-

Given numbers are

2,1,3,5,3,1,4


Arranging in ascending order,

1,1,2,3,3,4,5

Median = 3


Hope this helps :)
6 0
2 years ago
Read 2 more answers
Two trains leave the station at the same time, one heading west and the other east. The westbound train travels at 80 miles per
VashaNatasha [74]

Answer:

2.8 hours

Step-by-step explanation:

Distance = rate * time

If the west-bound train travels at a rate of 80 mph for t hours, then the distance it travels is 80t.  

If the east-bound train travels at a rate of 90 mph for t hours, then the distance it travels is 90t.

The distance between the trains after t hours is 476; therefore, the distance of the west-bound train plus the distance of the east-bound train equals the total distance between them, 476:

80t + 90t = 476 and

170t = 476 so

t = 2.8 hours

7 0
3 years ago
Here you go thanks for your help
denis-greek [22]

Answer:

Step-by-step explanation:

I'm just going to reply for points lol-

8 0
2 years ago
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