All categories

3 years ago

If f(x) = 3x-1 and g(x)= x+2 find (f-g)(x)

Mathematics

1 answer:

wariber [46]3 years ago

7 0

Answer:

2x-3

Step-by-step explanation:

f(x) = 3x-1

g(x) = x+2

Find (f-g)(x), this means we need to subtract g from x.

(3x-1) - (x+2)

Subtract the like terms:

3x -x = 2x

-1 -2 = -3

Combine them to get 2x-3

You might be interested in

1 1/5 divided by 3 4/5

Nana76 [90]

Answer:

6 /19

≅ 0.3157895

Step-by-step explanation:

3 0

2 years ago

Read 2 more answers

Kari bought 3 boxes of cookies to share with a book club. Each box contains 12 cookies. The expression StartFraction 36 over p E

sweet-ann [11.9K]

Answer:12 cookies

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

A bakery uses 70% of its milk in one week. They now have 36 quarts of milk left. How many quarts did the bakery use during the w

Evgesh-ka [11]

Answer:

a lot of milk

Step-by-step explanation:

3 0

2 years ago

Rectangles J and K are similar. If the area of rectangle J is 440, what is the area of rectangle K? I need this today

Hunter-Best [27]

Answer:

$Area = 27.5$

Step-by-step explanation:

Given

$J_{Area} = 440$

$J_{Width} = 22$

$K_{Width} = 5.5$

<em>See attachment</em>

Required

Determine the area of K

First, we need to calculate the length of the rectangle J

$J_{Length} * J_{Width} = J_{Area}$

This gives:

$J_{Length} * 22 = 440$

Divide both sides by 22

$\frac{J_{Length} * 22}{22} = \frac{440}{22}$

$J_{Length} = 20$

So, the length of the rectangle J is 20.

Since both shapes are similar, then:

$J_{Length} : J_{Width} = K_{Length} : `K_{Width}$

Substitute the known values:

$20 : 22 = K_{Length} : `5.5$

Express as fraction:

$\frac{20 }{ 22 }= \frac{K_{Length} }{ `5.5}$

Make Length, the subject of formula

$K_{Length} = \frac{5.5 * 20}{22}$

$K_{Length} = \frac{110}{22}$

$K_{Length} = 5$

The area of K is:

$Area = K_{Length} * K_{Width$

$Area = 5.5 * 5$

$Area = 27.5$

4 0

2 years ago

Need help: write the expression in a complete factored form: x²-9x+xy-9y

Galina-37 [17]

Factor this by grouping. Group the first two terms together and then the second 2 terms together. The idea here is that, after grouping, what you can pull out in both groups is the same. Like this:
$( x^{2} -9x)+(xy-9y)$
Now work on finding a common thing between the 2 groups:
$x(x-9)+y(x-9)$
See, what you have in common there now is the (x-9) that you can factor out:
$(x-9)(x+y)$
And that is factored completely.

4 0

3 years ago

If f(x) = 3x-1 and g(x)= x+2 find (f-g)(x)​

If f(x) = 3x-1 and g(x)= x+2 find (f-g)(x)