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3 years ago

I need help with this question please

Mathematics

2 answers:

Sav [38]3 years ago

8 0

Answer:

Step-by-step explanation:

klasskru [66]3 years ago

8 0

Answer:

Step-by-step explanation:

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2x^2+3x=(2x-1)(x+1) Pls do explain

Serggg [28]

<h3>Answer:</h3>

$x=-\frac{1}{2}$

<h3>Step-by-step explanation:</h3>

You could solve this problem by either: Factoring or by using the Quadratic Formula.

SOLVING BY FACTORING STEPS

STEP 1: Move (2x−1)(x+1) to the left side of the equation by subtracting it from both sides.

$2x^2+3x-(2x-1)(x+1)=0$

STEP 2: Simplify 2x^2+3x−(2x−1)(x+1).

$2x+1=0$

STEP 3: Simplify each term.

$2x^2+3x-2x^2-x+1=0$

STEP 4: Simplify by adding terms.

$2x+1=0$

STEP 5: Subtract 1 from both sides of the equation.

$2x=-1$

STEP 6: Divide each term by 2 and simplify.

$x=-\frac{1}{2}$

SOLVE BY USING THE QUADRATIC FORMULA STEPS

STEP 1: Move all terms to the left side of the equation and simplify.

$2x+1=0$

STEP 2: Subtract 1 from both sides of the equation.

$2x=-1$

STEP 3: Divide each term by 2 and simplify.

$x=-\frac{1}{2}$

5 0

3 years ago

Read 2 more answers

What is the inverse of the function f(x) = 1/4x-12?

Marrrta [24]

Answer:

$\huge\boxed{f^{-1}(x)=4x+48}$

Step-by-step explanation:

In order to find the inverse of a function, we need to follow a couple of steps.

Step 1: Write the function as $y=mx+b$
Step 2: Swap all x and y values
Step 3: Solve for y
Step 4: Replace y with $f^{-1}(x)$

We can follow these steps to find the inverse of this function.

Step 1: We can just replace the f(x) with y, making our function $y=\frac{1}{4}x-12$ .

Step 2: We can swap where the x and y values are, making our equation

$x = \frac{1}{4}y-12$

Step 3: We can now solve for y.

$x = \frac{1}{4}y-12$
$x + 12 = \frac{1}{4}x$
$4x+48 =y$

We now have the function as $y = 4x+48$ .

Step 4: We can now replace the y with $f^{-1}(x)$ .

$f^{-1}(x) =4x+48$

Therefore the inverse of $f(x) = \frac{1}{4}x-12$ is $f^{-1}(x) =4x+48$ .

Hope this helped!

8 0

3 years ago

HELP ASAPPPPPPP !!!!!

Ratling [72]

Answer: 270

Step-by-step explanation: 270

First you found out how many meter per second

Second you have to mutiply 120x6=270

Last but not least it will be 270m for 120 seconds

you could add 6 120 times

But its way more easy up top

#SubToPewds :D

5 0

3 years ago

Four different sets of objects contain 3, 5, 6, and 8 objects, respectively. How many unique combinations can be formed by picki

frozen [14]

Here is the reasoning. Pick one object from the first set. There are three possibilities.Pick a second object from the second set. There are 5 possibilities. So, there are 3 x 5 = 15 possibilities for choosing from the first two sets. Continue in this way. There are a total of 3 x 5 x 6 x 8 = 720 combinations, not counting the order in which they are picked. The answer is 720.

5 0

3 years ago

Read 2 more answers

Write in vertex form

nasty-shy [4]

Vertex form: $y=a(x-h)^2+k$

So firstly, put x^2 - 4x into parentheses: $y=(x^2-4x)+6$

Next, we need a perfect square inside the parentheses. Divide the x coefficent by 2 then square that result. In this case, -4 ÷ 2 = -2, (-2)²= 4. Add 4 inside the parentheses and then subtract 4 outside the parentheses:

$y=(x^2-4x+4)+6-4\\y=(x^2-4x+4)+2$

Lastly, factor what's inside the parentheses and your vertex form is $y=(x-2)^2+2$ 

5 0

3 years ago