All categories

3 years ago

Subtract (2x3 + 9x - 8) - (4x2 - 15x + 7).

Mathematics

1 answer:

maxonik [38]3 years ago

4 0

2x3 + 24x - 4x2 - 15

You might be interested in

You pay $10 to play the following game of chance. there is a bag containing 12 balls: three are red, five are green, and the res

Bogdan [553]

Answer:

$ -2.08 expected to lose

Step-by-step explanation:

3 25.0% $15.00 $5.00 $1.25

5 41.7% $10.00 $- $-

4 33.3% $- $(10.00) $(3.33)

$(2.08) expected to lose

7 0

3 years ago

I need help plz..No spam

Lilit [14]

Answer:

oytqlrvlhqxtqlxplympxmhmr

6 0

3 years ago

What is the expression in factored form x2 + 14x + 48

never [62]

Factor using the AC method...

The answer is:

(x+6) (x+8)

8 0

3 years ago

Read 2 more answers

Which statement describes the inverse of m(x) = x^2 – 17x?

DochEvi [55]

Given:

The function is

$m(x)=x^2-17x$

To find:

The inverse of the given function.

Solution:

We have,

$m(x)=x^2-17x$

Substitute m(x)=y.

$y=x^2-17x$

Interchange x and y.

$x=y^2-17y$

Add square of half of coefficient of y , i.e., $\left(\dfrac{-17}{2}\right)^2$ on both sides,

$x+\left(\dfrac{-17}{2}\right)^2=y^2-17y+\left(\dfrac{-17}{2}\right)^2$

$x+\left(\dfrac{17}{2}\right)^2=y^2-17y+\left(\dfrac{17}{2}\right)^2$

$x+\left(\dfrac{17}{2}\right)^2=\left(y-\dfrac{17}{2}\right)^2$ $[\because (a-b)^2=a^2-2ab+b^2]$

Taking square root on both sides.

$\sqrt{x+\left(\dfrac{17}{2}\right)^2}=y-\dfrac{17}{2}$

Add $\dfrac{17}{2}$ on both sides.

$\sqrt{x+\left(\dfrac{17}{2}\right)^2}+\dfrac{17}{2}=y$

Substitute $y=m^{-1}(x)$ .

$m^{-1}(x)=\sqrt{x+(\dfrac{189}{4}})+\dfrac{17}{2}$

We know that, negative term inside the root is not real number. So,

$x+\left(\dfrac{17}{2}\right)^2\geq 0$

$x\geq -\left(\dfrac{17}{2}\right)^2$

Therefore, the restricted domain is $x\geq -\left(\dfrac{17}{2}\right)^2$ and the inverse function is $m^{-1}(x)=\sqrt{x+(\dfrac{189}{4}})+\dfrac{17}{2}$ .

Hence, option D is correct.

Note: In all the options square of $\dfrac{17}{2}$ is missing in restricted domain.

7 0

3 years ago

Help me out !!!!! Please

Stella [2.4K]

4x-t-4 is the final answer.

4 0

3 years ago