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2 years ago

Let f(x) = 12/4x+2. find f(-1)

Mathematics

1 answer:

Step2247 [10]2 years ago

7 0

Just plug in -1 for x and u should get ur answer

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4x-12=24<br> how would this be solved

jekas [21]

Answer:

$x = 9$

Step-by-step explanation:

$~~~~~~4x-12 = 24\\\\\implies 4(x-3) = 24\\\\\implies x -3 = \dfrac{24}4\\\\\implies x-3 = 6\\\\\implies x = 6+3\\\\\implies x = 9$

7 0

2 years ago

Yun was trying to factor 7x^2-14x7x

disa [49]

the width of Yun's area model is 7x units or ( x-2 )units .

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

Here we have , Yun was trying to factor 7x^2-14x. He found that the greatest common factor of these terms was 7x and made an area model: What is the width of Yun's area model. Let's find out:

We know that area of rectangle :

⇒ $Area = length(width)$ .........(1)

Now , According to question we have

⇒ $Area = 7x^2-14x$

⇒ $Area = 7x(x-2)$

Comparing this equation to equation (1) we get that :

⇒ $width = 7x$ or , $width =x -2$

Therefore , the width of Yun's area model is 7x units or ( x-2 )units .

8 0

3 years ago

Read 2 more answers

Can someone help me with this

FrozenT [24]

Answer:

1) B) 123 years

2) B) 51 years

Step-by-step explanation:

1)given information

2) 2011-1960=51

5 0

2 years ago

Read 2 more answers

3a+4b=7ab<br> Find the mistake and solve

alekssr [168]

Answer:

The mistake is adding and there is no way to solve if you have to add

Step-by-step explanation:

7 0

2 years ago

if a toy rocket is launced vertically upward from ground level with an inital velocity of 128 feet per second, then its high h,

makkiz [27]

The toy rocket hits the ground when h(t) = 0.
So, h(t) = 0 = -9t^2 + 81.

Solving the equation,
-9t^2 = -81
Dividing by -9
t^2 = 9
Taking the square root.
t = 3

The answer is 3 seconds.

7 0

3 years ago