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2 years ago

ILL MARK BRAINILEST !! 80 POINTS

Mathematics

1 answer:

mixas84 [53]2 years ago

6 0

$\\ \rm\rightarrowtail y=x^2-10x+16$

$\\ \rm\rightarrowtail y=x^2-10x+16+9-9$

$\\ \rm\rightarrowtail y=x^2-10x+25-9$

$\\ \rm\rightarrowtail y=(x-5)^2-9$

Vertex form

y=a(x-h)^2+k

vertex:-

(h,k)=(5,-9)

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A government sample survey plans to measure the LDL (bad) cholesterol level of an SRS of men aged 20 to 34.

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Answer:

The sampling distribution of x is N(118, 2.5).

Step-by-step explanation:

We have that:

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4 years ago

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3 years ago

Solve the system of equations using elimination.

Dmitrij [34]

So just plug in the numbers (x,y) into the equations.

A) (7.5, -5)

2(7.5) -5 = 10

15 - 5 = 10 yup, this works.

Let's see if it works for other equation.

-2(7.5) + 2(-5) = 5

-15 - 10 = 5 nope, this does not work.

B) (-2.5, -5)

2(-2.5) - 5 = 10

-5 - 5 = 10 nope, doesn't work

Since it doesn't work we don't need to try for other equation.

C) (2.5, 5)

2(2.5) + 5 = 10

5 + 5 = 10 yup, this works.

Now the other equation.

-2(2.5) + 2(5) = 5

-5 + 10 = 5 and this works.

So the solution to this set is answer choice C

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2 years ago