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3 years ago

Convert y=x^2-4x-2 to vertex form

Mathematics

1 answer:

s344n2d4d5 [400]3 years ago

5 0

Hopefully this can help you

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"Conservationists have despaired over destruction of tropical rain forest by logging, clearing, and burning." These words begin

krok68 [10]

Answer:

The answer is "(0.461 , 7.206)"

Step-by-step explanation:

In the given question some information is missing, that is data. so, the correct answer to this question can be defined as follows:

UnLogged:

$x_1=17.500\\s_1=3.529\\n_1=12$

Logged:

$x_2=13.667\\ s_2=4.500\\n_2=9\\$

formula of std error:

$\ std \ error =\sqrt{\frac{s_1^2}{n_1}+\frac{s_2^2}{n_2}}$

$=\sqrt{\frac{3.529^2}{12}+\frac{4.500^2}{9}}\\\\=\sqrt{\frac{3.529^2\times 3+4.500^2\times 4}{36}}\\\\=1.8133$

Point differential estimation = $x_1-x _2$

$= 17.500-13.667\\=3.833$

For 90 percent t= 1.860 Cl & 8 df

error of margin E = $t\times \ std \ error$

$= 1.860 \times 1.8133\\= 3.373$

Lower bound =mean difference -E=0.461

Upper bound = mean difference+ E=7.206

In the above 90% confidence interval were the population mean= (0.461 , 7.206)

7 0

3 years ago

Find the sum 1/6+1/6

myrzilka [38]

The answers is
$\frac{1}{6} + \frac{1}{6} = \frac{2}{6}$
You simply add the numerator.
Then you would simiplify to
$\frac{2}{6} = \frac{1}{3}$

8 0

4 years ago

A cup and saucer cost $3.10 at the local store. The cup costs $2.00 more than the saucer. How much does each cost?

AlekseyPX

Answer: cup is $2.55

Saucer $0.55

Step-by-step explanation:

Cost of cup and saucer is $3.10

Let the cup be x

And saucer be y

I.e

X+y= 3.10......equation 1

Cup which is X is $2 more than the saucer

I.e x=2+y......equation 2

Substitute for X in equation 1

(2+y)+y=3.10

2+2y=3.10

2y=3.10-2

2y=1.10

Y=1.10/2

Y=$0.55

Substitute for y in equation 2

X=2+y

X=2+0.55

X=$2.55

Therefore

The cup is $2.55

The saucer is $0.55

5 0

3 years ago

10 divide 6.0 please

Nostrana [21]

Answer:

1.6667

Step-by-step explanation:

It took awhile to get this

6 0

3 years ago

What is 101,949 rounded to the nearest hundred thousand?

kobusy [5.1K]

Well the answer is 103,000 because when you round it the 1 becomes a 2

5 0

3 years ago

Read 2 more answers