All categories

3 years ago

I NEED HELP PLEASE, THANKS! :)

Mathematics

1 answer:

LekaFEV [45]3 years ago

8 0

Answer:

Option B

Step-by-step explanation:

Rewrite each of the options given to us in standard form. That way we can identify the parabola properties of each -

$Standard Form = 4\cdot \:2\left(y-\left(-9\right)\right)=\left(x-8\right)^2,\\\left(h,\:k\right)=\left(8,\:-9\right),\:p=2\\-----------------\\Standard Form = 4\cdot \:2\left(y-8\right)=\left(x-\left(-9\right)\right)^2,\\\left(h,\:k\right)=\left(-9,\:8\right),\:p=2$

Right away you can tell that the second option is correct. The vertex is known to be ( - 9, 8 ) and extends at an exponential rate of 2. This is our solution, <u><em>Option b!</em></u>

You might be interested in

25% of what number is 35?

Pani-rosa [81]

Answer:

140 dawg

Step-by-step explanation:

hook it up w brainliest

8 0

3 years ago

Read 2 more answers

Find the dy/dx for the equation below using implicit differentiation. Tq

KengaRu [80]

The derivative of an exponential function is

$\dfrac{d}{dx} a^x = a^x\log(a)$

Moreover, in this case we must apply the chain rule because the exponent is -x:

$\dfrac{d}{dx} 3^{-x} = 3^{-x}\log(3)\cdot (-1)=-3^{-x}\log(3)$

7 0

3 years ago

Find the distance between the pair of points. (-4,-3) and (-4,-6)

Anuta_ua [19.1K]

Answer:

$|d| = \sqrt{ {( - 6 - ( - 3))}^{2} + {( - 4 - ( - 4))}^{2} } \\ = \sqrt{ {( - 3)}^{2} + {0}^{2} } = \sqrt{9} \\ |d| = 3$

3 0

3 years ago

Read 2 more answers

On a farm there are some cows and some chickens if the animals have a total of 40 heads and 112 legs how many cows are there? ho

tankabanditka [31]

Answer:

There are 16 cows and 24 chickens in the farm.

Step-by-step explanation:

A Cow has 4 legs

Chicken has 2 legs.

Lets take there $x$ chickens AND,

there are $y$ number of Cows.

Now we can write two equations for the number of heads and legs.

For the number of heads we can write,

$x+y=40$ <--------- 1st equation

For the number of legs we can write,

$2x+4y=112$ <------ 2nd equation

We can now solve the simultaneous equations to find $x$ and $y$

Multiply 1st equation by 2 and deduct it from 2nd equation to remove $x$

⇒ $2x+4y-2*(x+y)=112-80$

⇒ $2x+4y-2x-2y)=112-80$

⇒ $2y=32$

⇒ $y=16$

Therefore, there are 16 cows in the farm.

Now we can substitute the $y$ value to the 1st equation and find $x$ value.

$x+16=40$

$x=24$

Therefore, there are 24 chickens in the farm.

6 0

3 years ago

"Tongue Piercing May Speed Tooth Loss, Researchers Say" is the headline of an article. The article describes a study of 51 young

Paul [167]

Answer:

The 95% confidence interval for the proportion of young adults with pierced tongues who have receding gums is (0.24, 0.506).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of $\pi$ , and a confidence level of $1-\alpha$ , we have the following confidence interval of proportions.