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2 years ago

10

State a counterexample to the conjecture below if a number is divisible by 6 and 2 then there’s is divisible by 12

2 answers:

Lisa [10]2 years ago

7 0

If there's is not divisible by 12 then the number is not divisible by 6 and 2. Hope this helps.

siniylev [52]2 years ago

4 0

Any number that is divisible by 6 is already divisible by 2, but is not necessarily divisible by 12.

Counterexamples include: 6, 18, 30, 42, 54, and so on. You can find more by multiplying 6 by any odd number. However, multiplying 6 by an even number provides another "2" that would make it divisible by 12.

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If f(x)= x2/x+3, find f(x+h)?

kompoz [17]

f(x+h) = $\frac{x^{2}+2xh+h^{2} }{x+h+3}$

Step-by-step explanation:

Given,

f(x) = $\frac{x^{2} }{x+3}$

To find the value of f(x+h) we need to replace x by x+h

Hence,

f(x+h) = $\frac{(x+h)^{2} }{x+h+3}$

= $\frac{x^{2}+2xh+h^{2} }{x+h+3}$

[Here, we apply the formula of $(a+b)^{2}= a^{2} +2ab+ b^{2}$ ]

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3 years ago

Please help meeeeeeee<br> pt 4

liraira [26]

Answer:

The answer is

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

Why? Below I explain

Step-by-step explanation:

That formula has three variables a, b and c.

So, a = 2, b = 3 and c = -1

Because the formula is written like

$\frac{ - b + - \sqrt{ {b}^{2} - 4 \times a \times c} }{2 \times a}$

5 0

3 years ago

The cost of C (in dollars) of making n watches is represented by C=15n+85. How many watches are made when the cost is $385?

hichkok12 [17]

well...

15 x 20 = 300

300+85 = 385

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2 years ago

Write the equation in function form. Show your steps. <br> 2x-3y=0

skad [1K]

Answer: Heyaa!

Your Answer is... \frac{3y}{2}

Step-by-step explanation:

Substitute the value of the variable into the equation and simplify.

Hopefully this helps <em>you !</em>

<em />

- Matthew ~

8 0

2 years ago

I don’t understand the second one please help

OLEGan [10]

You have to put the number in the graph

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3 years ago

Read 2 more answers