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3 years ago

Find many ways of arranging 24 counters in equal rows as you can. Write a multiplication sentence for each way

Mathematics

1 answer:

pshichka [43]3 years ago

4 0

Answer:

6×4

2×12

8×3

Step-by-step explanation:

I know!

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Somebody please help so I can pass, please

ASHA 777 [7]

First, we are going to find the vertex of our quadratic. Remember that to find the vertex $(h,k)$ of a quadratic equation of the form $y=a x^{2} +bx+c$ , we use the vertex formula $h= \frac{-b}{2a}$ , and then, we evaluate our equation at $h$ to find $k$ .

We now from our quadratic that $a=2$ and $b=-32$ , so lets use our formula:
$h= \frac{-b}{2a}$
$h= \frac{-(-32)}{2(2)}$
$h= \frac{32}{4}$
$h=8$
Now we can evaluate our quadratic at 8 to find $k$ :
$k=2(8)^2-32(8)+56$
$k=2(64)-256+56$
$k=128-200$
$k=-72$
So the vertex of our function is (8,-72)

Next, we are going to use the vertex to rewrite our quadratic equation:
$y=a(x-h)^2+k$
$y=2(x-8)^2+(-72)$
$y=2(x-8)^2-72$
The x-coordinate of the minimum will be the x-coordinate of the vertex; in other words: 8.

We can conclude that:
The rewritten equation is $y=2(x-8)^2-72$
The x-coordinate of the minimum is 8

8 0

3 years ago

Read 2 more answers

What is the value of discontinuity of x^2+8x+4/x^2-x-6? Choices:

Morgarella [4.7K]

Answer:

-2

Step-by-step explanation:

Hello,

First of all, let's check the denominator.

$x^2-x-6 \ \ \text{ *** How to factorise it ...? ***}\\\\\text{*** The product of the roots is -6=-2*3 and their sum is 1 ***}\\\\x^2-x-6=x^2-3x+2x-6=x(x-3)+2(x-3)=(x+2)(x-3)$

Now, let's see the numerator.

$x^2+8x+4 \ \text{ *** -2 is not a zero as ***}\\\\(-2)^2+8*(-2)+4=4-16+8=-4\\\\\text{*** 3 is not a zero as ***}\\\\3^2+8*3+4=9+24+4=37\\$

So we cannot factorise the numerator with (x+2) or (x-3)

Then, -2 and 3 are the the discontinuities of the expression.

There is only -2 in the list, this is the correct answer.

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0

2 years ago

If there we're 25 people in class voting,how many votes does it take to win a majority?

Amanda [17]

Answer:

it takes 13 votes to win a majority

Step-by-step explanation:

half+1 in the case of 25

it takes 13 votes to win a majority ( because there is nothing called half vote)

3 0

3 years ago

Brian and Zack went to the store and bought packs of gum. Brian bought 3 less packs than twice the number zack bought. Together

balu736 [363]

Answer:

Zack: 11
Brian: 19

Step-by-step explanation:

Let z and b represent the number of packs that Zack and Brian bought, respectively. Then the problem statement tells us ...

b = 2z -3 . . . . . . . Brian bought 3 fewer than twice what Zack bought

b + z = 30 . . . . . . they bought a total of 30 packs

Using the first equation to substitute into the second, we have ...

(2z -3) +z = 30

3z -3 = 30

3z = 33 . . . . . . add 3

z = 11

b = 2·11 -3 = 22 -3 = 19

_____

<em>Check</em>

b + z = 19 + 11 = 30 . . . . answer checks OK

Zack bought 11 packs; Brian bought 19 packs of gum.

3 0

2 years ago

HELP ASAP

lutik1710 [3]

I think A when there is an outlier

4 0

2 years ago