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V125BC [204]
3 years ago
13

F(x)= -4x² + 5x find f(6).

Mathematics
1 answer:
Mazyrski [523]3 years ago
5 0

Answer:

The answer is -114.

Step-by-step explanation:

You have to substitute x = 6 into the function :

f(x) =  - 4 {x}^{2}  +5 x

f( 6) =  - 4 {(6)}^{2}  + 5(6)

f(6) =  - 4(36) + 30

f(6) =  - 144 + 30

f(6) =  - 114

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Which one is it !? How do you do it ? It’s timedddd
wel

heres a key for then

SIN= O/H

COS= A/H

TAN= O/A

CSC= H/O

SEC= H/A

COT= A/O

let me know if u have anymore questions

Answer:

3/5 is ur answer

Step-by-step explanation:

ok so its SIN

SIN is o/h (o= opposite and h= hypotenuse)

so we can look at the picture and it says find the SIN of a

ok so the O would be 3 and the H would be 5

so ur answer would be 3/5

4 0
3 years ago
A total of 937 people attend the play. Admission was $2.00 for adults and $0.75 for students. The totral ticket sales amounted t
a_sh-v [17]

Answer:

x = students

y = adults

Linear Systems of Equations :

x + y = 937

0.75x + 2y = 1,109

Step-by-step explanation:

Step 1 : eliminate one of the variables

x + y = 937

0.75x + 2y = 1,109

-2(x + y = 937) = -2x - 2y = -1874

-2x - 2y = -1874

0.75x + 2y = 1109

We can eliminate y since -2y + 2y = 0

Step 2: Find x number of students.

-2x = -1874

+0.75x = 1109

____________

-1.25x = -765

____________ = 612 students attended

     -1.25

937 - 612 = 325 adults

Check Answer :

612 x 0.75 = $459

325 x 2 = $650

$650 + $459 = $1,109

Therefore, there will be 612 students attending and 325 adults.

6 0
3 years ago
Find the value of x. <br><br> is this the correct answer?
IgorLugansk [536]

Step-by-step explanation:

what's the radius

need the radius

5 0
3 years ago
Which shows the equation y + 2 = 3(x - 2) written in standard form
Law Incorporation [45]

Standard form is ax + by = c.

To change y+2 = 3(x-2) into that form, do:

y+2-2 = 3x -6 -2

-3x + y =  -8

Which is not in the list, so none of the answers are right...

5 0
4 years ago
What is the volume of the rectangular prism?<br>reduce to it's simplest terms!!!​
LekaFEV [45]

Answer:

the volume of the rectangular prism=

area of base × height. =27/5× ....unit ³

sorry lol question was incomplete

7 0
3 years ago
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