All categories

3 years ago

What is f(3) if f(x) =2x+6

Mathematics

2 answers:

xeze [42]3 years ago

8 0

F(3) = 2(3)+6
f(3)= 6+6
f(3)=12

Hope this helps!

KiRa [710]3 years ago

7 0

Replace f(x) with y
Y=2x-6

Interchange the variables
X=2y-6

Solve for y
Y=3+x/2

F to the negative 1st power (x)=3+x/2

You might be interested in

Suppose that a cyclist began a 374 mi ride across a state at the western edge of the state, at the same time that a car traveli

kherson [118]

This is the concept of relative speed; We are required to calculate the speed of the car and the bicycle.
Distance between the car and Bicycle=374 miles
Time they met=5.5 hr
Speed traveled by bicycle=x
Speed traveled by car=x+33.4334
Relative speed=x+(x+33.4334)=(2x+33.4334) mph
Distance=speed*time
374=(2x+33.4334)*5.5
374=11x+183.8837
collecting like term we get:
374-183.8837=11x
11x=190.1163
thus;
x=(190.1163)/(11)
x=17.2833 mph
thus the speed of the bicycle was x=17.2833 mph
The speed of the car was (x+33.4334)=(17.2833+33.4334)=50.7167 mph

4 0

4 years ago

4-7x +3 +5x pleas help thanks

meriva

Answer:

7−2x

Step-by-step explanation:

1 Collect like terms.

(4+3)+(-7x+5x)

(4+3)+(−7x+5x)

2 Simplify.

7-2x

7−2x

3 0

3 years ago

Read 2 more answers

Please answer this thanks

-BARSIC- [3]

Answer:

ED = 32.5

BE = 14.4

Step-by-step explanation:

Ab = 20

AC = AB + 5 = 20 + 5 = 25

AC / AB = 1.25

AB * 1.25 = AC

This means that:

AE * 1.25 = ED

CD / 1.25 = BE

AE * 1.25 = ED

26 * 1.25 = 32.5

CD / 1.25 = BE

18 / 1.25 = 14.4

4 0

3 years ago

Read 2 more answers

The product of complete numbers<br> (4, 6) and (5-6) is ?

alexdok [17]

Answer:

(38,9)

Step-by-step explanation:

4 0

3 years ago

Decompose 1 to represent the picture. +<br> OO

ohaa [14]

Answer:

Step-by-step explanation:

I do not understand English

4 0

3 years ago