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jarptica [38.1K]
3 years ago
13

WILL GIVE BRAINLIEST!!

Mathematics
1 answer:
Over [174]3 years ago
8 0

Answer:

the answer will be ( b ) 2/3r

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Can anyone someone please help me:((
Masteriza [31]

Answer:

Therefore, the standard for will be:

y=\frac{1}{4}x^{2}-x-4

Step-by-step explanation:

The equation of a parabola written as vertical axes is given by:

(x-h)^{2}=4p(y-k) (1)

The vertex of the parabola (h,k) is (2,-5).

The focus (h,k+p) is (2,-4)

Then we can find p knowing that:

h = 2

k = -5

k + p = -4 then p = -4+5 = 1

Putting all these values in equation (1) we will find the equation of the parabola:

(x-2)^{2}=4(1)(y-(-5))

(x-2)^{2}=4(y+5) (2)

Now, we need to find the standard form of the equation of the parabola.

Let's recall that standard form is:

y=ax^{2}+bx+c  

We just need to work out equation (2) to convert it to the standard form.

(x-2)^{2}=4(y+5)

x^{2}-4x+4=4(y+5)

\frac{1}{4}x^{2}-x+1=y+5

Therefore, the standard for will be:

y=\frac{1}{4}x^{2}-x-4

I hope it helps you!

 

6 0
3 years ago
The graph of y=f(x) is shown below. Find all values of x where f(x)=-8
vichka [17]

Answer:

4

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Martha's bathroom is shaped like a rectangle with dimensions of 5ft by 7ft. The floor of the room is made of decorative square t
Sergio039 [100]
We know that

[area of <span>Martha's bathroom]=5*7-----> 35 ft</span>²

[area of one tiles]=(1/4)²-----> 1/16 ft²

if 1 tile has area of--------------> 1/16 ft²
 x tiles---------------------------> 35 ft²
x=35/(1/16)-----> x=35*16-----> x=560 tiles

the answer is
560 tiles
6 0
3 years ago
Za and Zb are<br> complementary angles. Za measures 59º.<br> What is the measure of Zb?
____ [38]
Complementary angles are two angles whose sum adds up to 90 degrees
Za + Zb = 90
You know Za measures 59
59 + Zb = 90

Solution: Zb is 31 degrees
6 0
3 years ago
Read 2 more answers
Sas asa sss aas or hL (7-11)
maksim [4K]

Answer:

Step-by-step explanation:

7) S A S

8) A A S

9) HL

10) A S A

11)A S A

4 0
3 years ago
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