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zhuklara [117]
3 years ago
9

Is my answer correct? 10 points + brainleist!

Mathematics
1 answer:
Liono4ka [1.6K]3 years ago
8 0

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.

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-5+7=7+-5 is this number sentence true or false
vovikov84 [41]

Answer: True

Step-by-step explanation:

We can simplify each of the expressions on either side to see if they are equal.

Left side: -5+7=7-5= 2

Right side: 7+-5=7-5= 2

Yes, they are equal.

7 0
1 year ago
Read 2 more answers
The product of two numbers is a ______ of both numbers
qwelly [4]
<h2>The product of two numbers is <em>a,</em>  \sqrt{a} of both numbers.</h2>

Step-by-step explanation:

Given,

The product of two numbers = a

To find, the both numbers = ?

Let the two numbers = x

∴ x × x = a

⇒ x^{2} =  a

⇒ x^{2} =\sqrt{a}^2

Comparing the powers, we get

⇒ x = \sqrt{a}

∴ First number = \sqrt{a} and Second number = \sqrt{a}

Thus, the product of two numbers is <em>a,</em>  \sqrt{a} of both numbers.

5 0
3 years ago
Help
Novosadov [1.4K]
Well, you can actually tell it is D without solving it because it is the only one that has the x value as 3.  But just to be sure.

Plug in 3 for x into the equation:
3(3)-y=9 and solve for y
9-y=9 subtract 9 from both sides
-y=0 so y=0

so the value is (3,0)
4 0
3 years ago
Evarado paid $1.12 for a dozen eggs at his local grocery store. Determine the cost of 3 eggs.
malfutka [58]
A dozen eggs is 12 eggs.
Divide 1.12 by 12
1.12/12=0.93
Then multiply it by 3
.093*3=.28

3 eggs would cost you 28 cents.
7 0
3 years ago
How to find percent by divide the fraction?
Ludmilka [50]
Divide the top number by the bottom number and multiply that by 100


i hope this helps
7 0
3 years ago
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