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murzikaleks [220]
3 years ago
8

If f (x) = 3x²-7 , find f(4)

Mathematics
2 answers:
vitfil [10]3 years ago
6 0
Hello, 
To solve this function for f(4) we need to plug 4 into f(x) and the result will be our answer. We know that f(x) is 3x^2-7. Plugging in 4 we get 3(4)^2-7=41. Therefore, f(4)=41. Hope this helps!
Alla [95]3 years ago
4 0
What the question is asking you to do is plug in 4 in place of x in the given equation: 
f (x) = 3(4)^2-7 

4^2=16*3-17=41
Final answer: 41
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miv72 [106K]
Jennifer because she jogged 45 and Alan only jogged 28
5 0
3 years ago
What is three fifths of a number plus one fourth of the number is thirty four, what is the number
marishachu [46]
3/5 of 40 = 24

1/4 of 40 = 10


24 + 10 = 34
8 0
3 years ago
A teacher student committee consisting of 4 people is to be formed from 5 teachers and 20 students. Find the probability that th
antiseptic1488 [7]

Answer:

99.96%

Step-by-step explanation:

Given the information:

  • 5 teachers
  • 20 students
  • 4 people in committee

=> the are 25 people in total

Hence, the total possible outcomes of all the members in the 4 committee:

C^{4} _{25}  = 12650

They want us to find the probability that the committee will consist of at least one student, which means that

=(Total possible outcome - committee with no student) / Total possible outcomes

So we need to find the possible outcomes of committee with no student:

= C^{4} _{5}  =5

=> the probability that the committee will consist of at least one student.

= (12650 - 5) / 12650

= 0.9996

= 99.96%

Hope it will find you well.

5 0
3 years ago
A+6=9-5a what's the equation of this problem​
ankoles [38]

Answer:

A = 1/2

Step-by-step explanation:

"A+6=9-5A" is already an equation, and your task here is to solve it for A.

Adding 5A to both sides results in

A + 5A + 6 = 9, or

6A + 6 = 9.

Subtracting 6 from both sides results in

6A = 3.

Thus, A = 3/6, or, in simplest terms, A = 1/2.

6 0
4 years ago
This is the question of geometry can you solve this for me ☺️​
alisha [4.7K]

Answer:

x = 130 degrees

Step-by-step explanation:

let's imagine we move the point x further and further to the right (and move the connected lines with it) until we get a flat line that connects the two parallel lines.

in this case we have x = 180 degrees, and the top and bottom angles are both 90 degrees.

so, we have a total of all angles of 180 + 90 + 90 = 360 degrees.

this total had to stay the same no matter how we move x outward or inward.

so, even in the situation in the picture the sum of all 3 angles must be 360 degrees.

therefore we get

360 = 120 + 110 + x

360 = 230 + x

x = 130 degrees

4 0
3 years ago
Read 2 more answers
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