Answer:
x=6
Step-by-step explanation:
5x+4+8x-3=79
=>13x=79-4+3
=>13x=78
=>x=78/13
=>x=6
Answer:
What is the help you need
Plz repost clearly
Answer:
x^2/33 + y^2/26 = 1
Step-by-step explanation:
The formula for a hyperbola centered at the origin is:
x^2/a^2 - y^2/b^2 = 1
The vertices are located at (±a, 0), so we have that the value of a is √33
The foci are located at (±c, 0), where c^2 = a^2 + b^2
So if we have that c = √59, we can find the value of b:
59 = 33 + b^2
b^2 = 26
b = √26
So the formula for this hyperbole is:
x^2/33 + y^2/26 = 1
Answer: C
Step-by-step explanation: The domain is all the x values the range is the y values
Answer:
4 + 2/3 hours
Step-by-step explanation:
For the expert,
6 hours = 1 job
For the secretary,
7 hours = 1 job
We want to figure out how much the expert gets done in 2 hours.
2 hours = x jobs for the expert.
To turn 6 hours = 1 job into this, we can multiply both sides of the equation by 2 (the number we want to get to) / 6 (the number we are at) to get
6 hours * 2/6 = 1 job * 2/6
2 hours = 2/6 jobs
Therefore, the expert does 2/6 of the job, and 1-2/6 = 4/6 of the job is left for the secretary. We want to figure out how long it takes for her to complete the job
We know
7 hours = 1 job
and want to figure out
y hours = 4/6 jobs
We can multiply both sides of the original equation by (4/7) (the number we want to get to) / 1 (the number we are at) to get
7 hours * 4/6 = 1 job * 4/6
28 /6 hours = 4/6 jobs
= 4 + 4/6 hours
= 4 + 2/3 hours
