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mamaluj [8]
3 years ago
8

Parabolas in geometry. i need help please

Mathematics
1 answer:
natali 33 [55]3 years ago
7 0

Answer:

OPtion B

Step by step explanation:

Lets plug in a random value for x.

Lets say 5 is x

-8(-5-5)=(y+1)^2

5-5 = 0

-8(0) = 0

0 = (y+1)^2

Square root of both sides

0 = y+1

subtract one from both sides

-1 = y

that means the x is 5 and the y is -1. Option B illustrates exactly that!

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What is the solution of the system? use substitution. 5x - y =3 6x - y=8
Bess [88]
5x - y = 3 ------------ (1)
6x - y = 8 ------------ (2)

From (1):
5x - y = 3
y = 5x - 3 ------------ Sub into (2)

6x - (5x - 3) = 8
6x - 5x + 3 = 8
x + 3 = 8
x = 5 ------------------- Sub into (1)

5x - y = 3
5(5) - y = 3
25 - y = 3
y = 25 - 3
y = 22

---------------------------------
Ans: x = 5, y = 22
---------------------------------

5 0
3 years ago
A company that produces fine crystal knows from experience that 15% of its goblets havecosmetic flaws, while the remaining 85% a
Vinvika [58]

Answer:

The probability that exactly two have flaws is P (x=2) = 0.2376

Step-by-step explanation:

Here

Success= p= 0.15

Failure = q= 0.85

total number= n= 8

Number chosen = x= 2

Applying the binomial distribution

P (x=x) = nCx p^x(q)^n-x

P (x=2) = 8C2 0.15 ²(0.85)^8

P (x=2) = 0.2376

The success is chosen about which we want to find the probability. Here we want to find the probability that exactly two have flaws so success would be having flaws therefore p = 0.15

6 0
3 years ago
Which of the following represents the area of a rectangle with a length of (3x + 2)
Misha Larkins [42]

Answer:

WANNA HEAR SOME METAL

Step-by-step explanation:

WANNA HEAR ME ROAAAAAAAAAAAAAAAAAR

6 0
3 years ago
PLEASE HELP!!!! The problem is in the photo below.
Ratling [72]
Answer :36 explanation: (39x39)-(15-15)=1296 then square root that and get 36
7 0
3 years ago
Given f(x)=-3x+5f(x)=−3x+5, find f(-6)f(−6).
Andreyy89

Answer:

36

Step-by-step explanation:

When you multiply -6 x -6 you get 36.

Hope this helps:)

3 0
3 years ago
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