Laura has $30 to spend on food for the week. Which inequality represents this? x < 30 x < 30 x > 30 x > 30
2 answers:
In the given question Laura has $30 to spend on food for the week.
According to the question we have to set the inequality between total amount and amount spent on food.
Amount spend by Laura on food for the week = $30
Let the amount spent by Laura on food be x
So she has to spend up to $30
So inequality will be
So option b is the answer
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Answer:
The equation of hyperbola :
Step-by-step explanation:
Given - This hyperbola is centered at the origin.
Foci: (0,-9) and (0,9) Vertices: (0,-7) and (0,7)
To find - Find its equation.
Solution -
We know that,
Equation of Hyperbola is represented by
Now,
Given that,
Foci : F(0, -9) and F'(0, 9)
So,
c = 9
And
Vertices : A(0,-7) and A'(0,7)
So,
a = 7
Also, we know that,
c² = a² + b²
⇒b² = c² - a²
⇒b² = 9² - 7²
⇒b² = 81 - 49
⇒b² = 32
So,
The equation of hyperbola becomes
Answer:
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