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nalin [4]
2 years ago
13

A hyperbola centered at the origin has a vertex at (3, 0) and a focus of the hyperbola is located at (9, 0). What are the equati

ons of the directrices?
x = ±
Mathematics
2 answers:
Alborosie2 years ago
8 0
The answer is 1.,.....

frez [133]2 years ago
7 0
It's 1 i agree with the other person because i just took the assignment and got it correct.
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A rectangle has a perimeter of 112 centimeters. if the length of the rectangle is 3 times its​ width, find the dimensions of the
ss7ja [257]
112/2=56 (sum of both lengths)
4x=56
x=14

length=42
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7 0
3 years ago
Given the system of equations presented here:
Nata [24]
2x + 4y = 14
4x + y = 20......multiply by -4
----------------
2x + 4y = 14
-16x - 4y = -80 (result of multiplying by -4)
---------------add
-14x = -66....as u can see, ur y's cancel out

so ur answer is : 1st answer choice <==

** and just so u know, u could have multiplied the 1st equation by -2, and it would have cancelled out ur x's
6 0
3 years ago
For an outdoor concert by the city orchestra, concert organizers estimate that 10,000 people will attend if it's not raining. If
Vlada [557]

Answer:

The number of expected people at the concert is 8,500 people

Step-by-step explanation:

In this question, we are asked to determine the expected number of people that will attend a concert if we are given the probabilities that it will rain and it will not rain.

We proceed as follows;

The probability that it will rain is 30% or 0:3

The probability that it will not rain would be 1 -0.3 = 0.7

Now, we proceed to calculate the number of people that will attend by multiplying the probabilities by the expected number of people when it rains and when it does not rain.

Mathematically this is;

Number of expected guests = (probability of not raining * number of expected guests when it does not rain) + (probability of raining * number of expected guests when it rains)

Let’s plug values;

Number of expected guests = (0.3 * 5,000) + (0.7 * 10,000) = 1,500 + 7,000 = 8,500 people

4 0
3 years ago
A public interest group hires students to solicit donations by telephone. After a brief training period students make calls to p
IceJOKER [234]
I need help with the answer?
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3 years ago
Which is the area of a circle with a circumference of 37.68 units (use 3.14)
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1081637.6 when rounded to the nearest tenth
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