Mrs. Houser is baking cookies for an elderly neighbor. She decides to make half of this cookie recipe since she doesn't need the
1 answer:
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Answer:
The x-intercepts are and
.
Step-by-step explanation:
We are given the equation
Begin by dividing both sides of the equation by 2:
Next, take the square root of both sides. Remember that there are two solutions to a square root, the positive and the negative root:
Split the equation into two based on the two solutions:
Solve each equation by subtracting 1 from both sides:
Since the x-intercepts are the solutions to a quadratic, we know the solutions are (2,0) and (-4,0).
<u>Answer:</u>
The lateral area of volcano is 323.361 km square
<u>Explanation</u>:
Given the diameter of the volcano (cone) = 20 km
Then, radius (r) = 20/2 = 10km
Height of the volcano (h) = 2.46 km
Given, the volcano has a distinctive cone shape
Then, lateral area of cone is given by the formula,
Substituting the values,
= 323.361 km square
Therefore, the lateral area of cone is 323.361 km square