All categories

3 years ago

12x^+2x^2=2y^2+28y-6

Mathematics

1 answer:

Ket [755]3 years ago

5 0

Hello,

There is no X intercept but there is a Y

Y intercept = (0,-7 + 2 square root of 13),(0,-7,- 2 square root 13)

Center (-7,0)

Vertices: (−7+√x2+52,0),(−7−√x2+52,0)

(-7+x2+52,0),(-7-x2+52,0)

Foci: (−

42−√42(x2+52) 6 ,0),(−

42+√42(x2+52)

,0)

(-42-42(x2+52)6,0),(-42+42(x2+52)6,0)

I honestly dont know what your trying to solve so im guessing thats what you wanted...

You might be interested in

In the past decades there have been intensive antismoking campaigns sponsored by both federal and private agencies. In one study

astra-53 [7]

Answer:

C. z = 2.05

Step-by-step explanation:

We have to calculate the test statistic for a test for the diference between proportions.

The sample 1 (year 1995), of size n1=4276 has a proportion of p1=0.384.

$p_1=X_1/n_1=1642/4276=0.384$

The sample 2 (year 2010), of size n2=3908 has a proportion of p2=0.3621.

$p_2=X_2/n_2=1415/3908=0.3621$

The difference between proportions is (p1-p2)=0.0219.

$p_d=p_1-p_2=0.384-0.3621=0.0219$

The pooled proportion, needed to calculate the standard error, is:

$p=\dfrac{X_1+X_2}{n_1+n_2}=\dfrac{1642+1415}{4276+3908}=\dfrac{3057}{8184}=0.3735$

The estimated standard error of the difference between means is computed using the formula:

$s_{p1-p2}=\sqrt{\dfrac{p(1-p)}{n_1}+\dfrac{p(1-p)}{n_2}}=\sqrt{\dfrac{0.3735*0.6265}{4276}+\dfrac{0.3735*0.6265}{3908}}\\\\\\s_{p1-p2}=\sqrt{0.00005+0.00006}=\sqrt{0.00011}=0.0107$

Then, we can calculate the z-statistic as:

$z=\dfrac{p_d-(\pi_1-\pi_2)}{s_{p1-p2}}=\dfrac{0.0219-0}{0.0107}=\dfrac{0.0219}{0.0107}=2.05$

z=2.05

4 0

3 years ago

Please answer this correctly

Hoochie [10]

Answer:

3:48 P.M

because you add all the number making sure it's not greater than 60 and carry over to the next hour if it is

3 0

2 years ago

Read 2 more answers

Find the missing side and round to the nearest tenth

xxMikexx [17]

In this problem you use cosine because you know the hypotenuse and you want to know the adjacent side of the triangle. So in your calculator you would input cos(52). Then you would multiply that answer with the hypotenuse side. So your equation would be this: cos(52) x 13

5 0

3 years ago

Which is the longest 2 km 25m 2500 cm or 3000 mm

MAVERICK [17]

2km=2 kilometer
kilo=1000 so 2 km=2000m

25m

2500cm
cm=centimeter=1/100 of a meter
so
2500cm=25m

mm=milimeter=1/1000 meter
so
3000mm=3m

so the longets is obviously 2000m or 2km

6 0

2 years ago

Read 2 more answers

Elanso [62]

Answer:

Step-by-step explanation:

6 0

3 years ago