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SIZIF [17.4K]
3 years ago
8

What is the value of f(X)=3x-12 for X=9

Mathematics
1 answer:
Phantasy [73]3 years ago
8 0
F(X)=3x-12 Substitute 9 for x. f (9)=3 (9) -12 Multiply 9 by 3. F (9)= 27 -12 Subtract Final Answer: 15
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What is the intermediate step in the form (x + a)2 = b as a result of completing the
Eddi Din [679]

Answer:

(x + 7)^2 = 64

Step-by-step explanation:

x^2 + 23x – 19 = 9x - 4

x^2 + 23x - 9x = -4 + 19

x^2 + 14x = 15 = 0

Completing the square:

(x + 14/2)^2 - (14/2)^2 = 15

(x + 7)^2 - 49 = 15

(x + 7)^2 = 64

8 0
2 years ago
A linear function has a slope of Negative StartFraction 7 Over 9 EndFraction and a y-intercept of 3. How does this function comp
Ede4ka [16]

The way that this linear function compares to y+11 is that It has the same slope and the same y-intercept.

<h3>What is a linear function?</h3>

This is the type of function that would produce a line when it is graphed out.

When we write out the equations in 1 and 2 we would see that they are basically the same type of equation. A linear equation is made up of the slope and the intercept.

Read more on linear equation here:

brainly.com/question/14323743

#SPJ1

3 0
1 year ago
Solve 4(4f-9)=-(2-f)
Whitepunk [10]

Answer:

f = \frac{7}{15}

Step-by-step explanation:

1. 4(4f - 9) = -(2-f)               distribute the negative

2. 4(4f - 9) = -2 + f           Distribute the 4

3. 16f - 9 = -2 + f            Subtract f on both sides

4. 15f - 9 = -2                  Add 9 on both sides

5. 15f = 7                 Divide both equations by 15

6. \frac{15f}{15} = \frac{7}{15}  

f = \frac{7}{15}

8 0
3 years ago
You are challenged to a lucky draw game. If you draw a face card (K, Q, J) from a standard deck of cards, you earn 10 points. If
sveticcg [70]
There are 3 face cards for each of the 4 suits, leading to a total possible gain of 120, there are 40 other cards leading to a total possible loss of 80.
120 - 80 = 40.
40 / 52 (total number of cards) = about .77

Final Answer:
The expected value of a draw is positive 0.77 points.
Hope I helped :)
7 0
3 years ago
Read 2 more answers
WILL GIVE BRAINLIEST AND 100 POINTS
Airida [17]

Answer:

Apologiabiology  Ambitious

v=vanilla

c=chocolate

A.

4v+c=45

v+c=27

b.

multiply 2nd equation by -1 and add to first

4v+c=45

-v-c=-27 +

3v+0c=18

3v=18

divide both sides by 3

v=6

sub bac

v+c=27

6+c=27

minus 6

c=21

21chocolate

6 vanila

Step-by-step explanation:

5 0
3 years ago
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