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3 years ago

What is the equation of a hyperbola with a = 1 and c = 9? Assume that the transverse axis is horizontal.

1 answer:

5 0

A=1 , c=9

y²/a²-x²/b²=1

c²=a²+b²

b²=c²-a²

b²= 9²-1²

b²=8

y²/1²-x²/8=1

y²- x²/8=1 is the equation of hyperbola.

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Which graph shows a set of ordered pairs that represents a function?

pychu [463]

Answer:

B represents a function.

Step-by-step explanation:

Recall these characteristics of a "function:"

Only one y-value can be associated with each x-value.

Thus, A could not represent a function because there are two points with x = 1 and two different y-values: (1, 1) and (1, -2).

B represents a function because for each input (x-value) there is one and only one y-value associated.

C not a function: (2, 3) and (2, -3) have two different y-values associated with one x-value (2).

D not a function: (-3, 4) and (-3, -4) (see A and C, above)

6 0

3 years ago

A construction worker needs to pour a rectangular slab 25 ft long. 15 ft wide, and 4 in thick. How many cubic yards of concrete

arsen [322]

Answer:

hope this answer helps you dear...! 

3 0

3 years ago

If F(x)=4x-3over7,which of the following is the inverse of F(x)

KatRina [158]

7 over 4x-3 you just flip the fraction to get the inverse

3 0

3 years ago

Read 2 more answers

Please help me find the correct answers

Paraphin [41]

Answer:

1) 63cm²

2)28.27cm²

(dont put the cm² in your answer though since its already there)

Step-by-step explanation:

Surface area of the cardboard part formula :

Base × Height

you have the radius going half way so add another 3cm to make it 6cm so you have the full length

6 x 10.5= 63cm²

Plastic part of the can :

$\pi \: r^{2}$

3cm is your radius so.

$\pi \times 3 ^{2} = 28.27433388$

but its asking you to round to the nearest hundredth so

28.27cm²

4 0

3 years ago

Suppose your friends have the following ice cream preferences: 31% of your friends like chocolate (C). The remaining do not like

sergeinik [125]

Answer:

0.3333 = 33.33% of this group likes chocolate

Step-by-step explanation:

Conditional Probability

We use the conditional probability formula to solve this question. It is

$P(B|A) = \frac{P(A \cap B)}{P(A)}$

In which

P(B|A) is the probability of event B happening, given that A happened.

$P(A \cap B)$ is the probability of both A and B happening.

P(A) is the probability of A happening.

Of the friends who like sprinkles, what proportion of this group likes chocolate:

So,

Event A: Likes sprinkles

Event B: Likes chocolate

15% of your friends like sprinkles (S) topping.

This means that $P(A) = 0.15$

5% of your friends like Chocolate (C) and also like sprinkles (S).

This means that $P(A \cap B) = 0.05$

$P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.05}{0.15} = 0.3333$

0.3333 = 33.33% of this group likes chocolate

6 0

3 years ago