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3 years ago

Which ordered pair is the best estimate for the

Mathematics

1 answer:

d1i1m1o1n [39]3 years ago

7 0

Answer:

-4, -6

Step-by-step explanation:

3x+6= 1x-2

2x+6= -2

2x= -8

x= -4

Now that you have your x variable, you can go back and plug it in to your original equations:

y= 3(-4)+6,

y= (-12)+6 therefore y= -6

y=1(-4) -2,

y= (-4) -2 therefore y = -6

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A twelve-sided die with sides labeled 1 through 12 will be rolled once. Each number is equally likely to be rolled. What is the

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3 years ago

How do you get 5:2 or 5:1 as a ratio of 10 pencils and 2 erasers

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Since there are 10 pencils, and 2 erasers, the ratio of pencils to erasers is 10:2. You can divide both sides by 2 to get 5:1.

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4 years ago

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What policy should owners of older homes consider? (Site 1)

vaieri [72.5K]

Answer:

H08 Policy; it covers the same perils as H0-2 but pays only for repair costs or actual cash value, since replacement cost could make the policy costly.

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Step-by-step explanation:

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3 years ago

What is the vertex form of y=2x^2-8x+1

bezimeni [28]

Answer:

$2(x-2)^2-7$

Step-by-step explanation:

$y=2x^2-8x+1$

When comparing to standard form of a parabola: $ax^2+bx+c$

$a=2$
$b=-8$
$c=1$

Vertex form of a parabola is: $a(x-h)^2+k$ , which is what we are trying to convert this quadratic equation into.

To do so, we can start by finding "h" in the original vertex form of a parabola. This can be found by using: $\frac{-b}{2a}$ .

Substitute in -8 for b and 2 for a.

$\frac{-(-8)}{2(2)}$

Simplify this fraction.

$\frac{8}{4} \rightarrow2$

$\boxed{h=2}$

The "h" value is 2. Now we can find the "k" value by substituting in 2 for x into the given quadratic equation.

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

Simplify.

$y=-7$

$\boxed{k=-7}$

We have the values of h and k for the original vertex form, so now we can plug these into the original vertex form. We already know a from the beginning (it is 2).

$a(x-h)^2+k\\ \\ 2(x-2)^2-7$

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3 years ago

GIVING 20 POINTS FOR THIS IF YOU ANSWER IT CORRECTLY!!!!!!!!!!

Anna71 [15]

Answer:

b (the second choice)

Step-by-step explanation:

range is basically the y

domain is like x

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