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3 years ago

If f(x)=3x-7, find f(x)=2

Mathematics

2 answers:

Arisa [49]3 years ago

8 0

Answer:

x = 2

Step-by-step explanation:

drek231 [11]3 years ago

3 0

Answer:

f(3) = 2 or (3, 2)

The y-value we solved for is 2.

Step-by-step explanation:

The equation they give you, all you need to do is plug in the x-value they give you.

f(x) the y-value in (x, y)

it will be on that bold, vertical line on the graph

2=3x-7

add 7 to both sides

9=3x

divide both sides by 3

x=3

y=2

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Find the magnitude of the vector 3i +4j

Nadusha1986 [10]

Answer:

Step-by-step explanation:

magnitude of the vector

=√(3²+4²)

=√25

3 0

3 years ago

The height of a parallelogram is 5 feet more than it's base. If the area of the parallelogram is 204 square feet, what is its ba

siniylev [52]

The base is x.
The height is 5 feet more than the base, so it's x+5.
The area of a parallelogram is the product of its base and its height. The area is 204 square feet.

$x(x+5)=204 \\
x^2+5x=204 \\
x^2+5x-204=0 \\
x^2+17x-12x-204=0 \\
x(x+17)-12(x+17)=0 \\
(x-12)(x+17)=0 \\
x-12=0 \ \lor \ x+17=0 \\
x=12 \ \lor \ x=-17$

The length of the base of a parallelogram must be a positive number, so x=12.

$\hbox{the base:} \\ x=12 \\ \\
\hbox{the height:} \\ x+5=12+5=17$

The base is 12 feet long, the height is 17 feet long.

8 0

3 years ago

If a = b and 1/x + 1/a = 1/b then x =

seraphim [82]

1/x+1/a=1/a
minus 1/a from both sides
1/x=0
false
let's try a differnt way
1/x+1/a=1/a
times both sides by xa
a+x=x
minus x from both sides
a=0
???
1/0 is undefined
this creates problems

no solution

6 0

4 years ago

Anyone pls helppp meeeee

Citrus2011 [14]

Answer:

c answer becoz may ifhridyrhfujghrhrjjtufuueb

3 0

3 years ago

Question 16 2 points)

katen-ka-za [31]

Each edge is 4 feet. To find volume, you do length x width x height. A cube has all equal sides. 4x4x4=64

4 0

3 years ago