2 years ago

Which is the equation of a hyperbola with directrices at y = ±2 and foci at (0, 4) and (0, −4)?

1 answer:

3 0

Answer:

Step-by-step explanation:

x2/8 - y2/8 = 1

Thank me later :>

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Dmitrij [34]

Answer: Null hypothesis : $H_0:\ p=0.22$

Alternative hypothesis : $H_a:\ p$

Step-by-step explanation:

Given claim : The proportion of U.S. adults age 25 or older who smoke : $p=0.22$

A researcher suspects that the rate is lower among U.S. adults 25 or older who have a bachelor's degree. i.e. $p$

Since the null hypothesis is a fact checked by the researcher or the experimenter that always contains a equals to sign.

∴ Null hypothesis : $H_0:\ p=0.22$

Alternative hypothesis : $H_a:\ p$

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3 years ago

jonny [76]

I think the word you're looking for is congruent. Congruent angles always have the same angles.

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3 years ago

AleksAgata [21]

Use the trick x+ y+ z =0 and 6+8+z=0,...so z= -14

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3 years ago

valentinak56 [21]

Answer:

$\frac{7}{9\\}$

Step-by-step explanation:

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1 year ago

allsm [11]

Answer:

(x,y) =(7/2,4)

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3 years ago