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vichka [17]
3 years ago
12

Graph the function. Then state the domain and range.

Mathematics
1 answer:
Marta_Voda [28]3 years ago
4 0
I think it's x=0 and f(x)= greater than or equal to, all real numbers
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Find the standard form of the equation of the hyperbola satisfying the given conditions: X intercept +/- 6; foci at (-10,0) and
uysha [10]

Answer:

\frac{x^{2}}{36} - \frac{y^{2}}{64}=1

Step-by-step explanation:

Given an hyperbola with the following conditions:

  • Foci at (-10,0) and (10,0)
  • x-intercept +/- 6;

The following holds:

  • The center is midway between the foci, so the center must be at (h, k) = (0, 0).
  • The foci are 10 units to either side of the center, so c = 10 and c^2 = 100
  • The center lies on the origin, so the two x-intercepts must then also be the hyperbola's vertices.

Since the intercepts are 6 units to either side of the center, then a = 6 and a^2 = 36.

Then, a^2+b^2=c^2\\b^2=100-36=64

Therefore, substituting a^2 = 36. and b^2=64 into the standard form

\frac{x^{2}}{a^2} - \frac{y^{2}}{b^2}=1\\We \: have:\\ \dfrac{x^{2}}{36} - \dfrac{y^{2}}{64}=1

4 0
3 years ago
-2(3x - 4) + 7<br> divided by 3
kolbaska11 [484]

Answer:

-6x+31/3

Step-by-step explanation:

6 0
3 years ago
It is believed that the percentage of people who support candidate A is 56%. A sample of size 100 indicated that 40 people suppo
kondor19780726 [428]

Given data:

Sample size =100

Sample proportion of people support candidate A:

p=\frac{40}{100}=0.40

Population proportion of people support Candidate A :

P=\frac{56}{100}=0.56

Check the condition: nP>10 and n(1-P)>10.

nP=100*0.40=40>10

n(1-P)=100*0.60=60>10

Null Hyposthesis: H_0: P=0.56

Alternative Hypothesis: H_\alpha :P\neq 0.40

The test statistics:

z=\frac{p-P}{\sqrt{\frac{P(1-P)}{n}}}

Plug in p=0.56, P=0.40 and n=100 in the above formula,

z=\frac{0.56-0.40}{\sqrt{\frac{0.40(1-0.40)}{100}}}

z=\frac{0.56-0.40}{\sqrt{\frac{0.40(1-0.40)}{100}}}=3.2659

The table value of z at 10% of significance level is 1.28

Table value is less than the calculated value.

Hence H_0 is rejected at 10% level.

Therefore there is the evidence at an alpha level of 10% to conclude that the percentage of people who support candidate A has changed.

5 0
3 years ago
Organic sugar used to be sold at a bulk price of $4 per pound. The price was recently
MaRussiya [10]

Answer: $5

Step-by-step explanation:

Old price was $4

Increase of 25%

= 4 x 25/100 = 1

New price is 4+1 = $5

8 0
3 years ago
4/5 divided by 3/10=
erik [133]
Step 1. Apply this rule: a ÷ \frac{b}{c} =a* \frac{c}{b}

\frac{4}{5} * \frac{10}{3}

Step 2. Apply this rule: \frac{a}{b} * \frac{c}{d} = \frac{ac}{bd}

\frac{4*10}{5*3}

Step 3. Simplify 4 × 10 to 40

\frac{40}{5*3}

Step 4. Simplify 5 × 3 to 15

\frac{40}{15}

Step 5. Simplify

\frac{8}{3}

Done!

7 0
3 years ago
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