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4 years ago

URGENT!!! what's the answer to this?

Mathematics

1 answer:

katen-ka-za [31]4 years ago

6 0

Hey!

When you're dividing fractions, you have to keep, change, flip

Keep 3/4

Change ÷ to ×

Flip 1/8 = 8/1

That gives you:

$\frac{3}{4} \times 8$

<em>That means your answer is the 2nd choice</em>

Good luck and hope this helps! :)

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Is my answer correct? 10 points + brainleist!

Liono4ka [1.6K]

Answer:

your answer is incorrect. The correct answer is $h=-13$ and $k=13$ .

Step-by-step explanation:

If a quadratic function is $f(x)=ax^2+bx+c$ and a>0, then minimum value of the function at point $\left(-\dfrac{b}{2a},f(-\dfrac{b}{2a})\right)$ .

The given function is

$f(x)=x^2+bx+182$

Here, a=1, b=b and c=182. So.

$-\dfrac{b}{2a}=-\dfrac{b}{2(1)}=-\dfrac{b}{2}$

Put $x=-\dfrac{b}{2}$ in the given function to find the minimum value of the function.

$f(-\dfrac{b}{2})=(-\dfrac{b}{2})^2+b(-\dfrac{b}{2})+182$

We know that minimum value is 13. So,

$13=\dfrac{b^2}{4}-\dfrac{b^2}{2}+182$

$13-182=-\dfrac{b^2}{4}$

$-169=-\dfrac{b^2}{4}$

$169\times 4=b^2$

Taking square root on both sides.

$13\times 2=b$

$b=26$

The value of b is 26.

So, the given function is

$f(x)=x^2+26x+182$

Now, add and subtract square of half of coefficient of x.

$f(x)=x^2+26x+182+(13)^2-(13)^2$

$f(x)=(x^2+2(13)x+(13)^2)+182-169$

$f(x)=(x+13)^2+13$

On comparing with $f(x)=(x-h)^2+k$ , we get

$h=-13$

$k=13$

Therefore, your answer is incorrect.

8 0

3 years ago

Hurry please<br> I need the answer to this one in 2 minutes

adoni [48]

Answer:

125

Step-by-step explanation:

45 ÷9=5

5² or 5×5=25

25×5=125

Hope this helps!

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3 years ago

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Answer:

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Step-by-step explanation:

?..............

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3 years ago

53/7 as a mixed number

marysya [2.9K]

Its already an improper fraction.
If you mean mixed number it would be 7 4/7.
Hope this helps!:)

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3 years ago

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