3 years ago

If a number is divisible by 2 and 3 then it is divisible by 6

1 answer:

4 0

Yes it is it is because So for a number to be divisible by 6, it must also be divisible by 2 and 3. Therefore, we need to check if a number is even and then check if the sum of the digits is divisible by 3.

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Which of the following is an equivalent equation obtained by completing the square of the expression below? x^2+6x−8=0 A (x+3)^2

valentina_108 [34]

Answer:

Solving the equation $x^2+6x-8=0$ by completing the square method we get $\mathbf{(x+3)^2=17}$

Option B is correct option.

Step-by-step explanation:

We need to solve the equation $x^2+6x-8=0$ by completing the square method.

For completing the square method: we need to follow: $a^2+2ab+b^2=(a+b)^2$

We are given:

$x^2+6x-8=0$

Solving by completing the square

$x^2+2(x)(?)+(?)^2-8=0$

We need to find ? in our case ? is 3 because 2*3= 6 and our middle term is 6x i,e 2(x)(3)=6x.

So, adding and subtracting (3)^2

$x^2+2(x)(3)+(3)^2-8-(3)^2=0\\(x+3)^2-8-9=0\\(x+3)^2-17=0\\(x+3)^2=17$

So, solving the equation $x^2+6x-8=0$ by completing the square method we get $\mathbf{(x+3)^2=17}$

Option B is correct option.

7 0

3 years ago

Зх - у = 2<br> What is the y corddinate

wariber [46]

Answer:

y=3x-2

Step-by-step explanation:

7 0

3 years ago

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Thompson High School had a population of 1800 students in 2010. Every year since then, the population has grown by 50 students a

Scorpion4ik [409]

I believe it would be B but I'm not 100% sure. Like i warn everyone, TRUST SOMEONE ELSE BEFORE TRUSTING ME. I would hate to see you get the wrong answer cause of me...

Best Hopes,

Cupkake~

3 0

3 years ago

What is 38 in denary in base 8

Naily [24]

First divide by 8:_

38 / 8 = 4 remainder 6

so its 46

4 0

3 years ago

Given f(x)=10-2x, find f(7)

mylen [45]

Answer:

f(7)=10-14=-4

Answer=-4

Step-by-step explanation:

5 0

3 years ago

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