Answer:

Step-by-step explanation:
Let
x ----> the average depth of the resulting layers of ash and rock
we know that
To find out the average depth, divide the cubic kilometers of molten rock by the area where all the ejected material fell.
so

Convert to meters
Remember that

so

Convert to mixed number

Special cases of the sum and difference formulas for sine and cosine yields what is known as the double‐angle identities and the half‐angle identities.
Answer:can someone answer my question
Step-by-step explanation:
4/5, because to simplify a decimal, you can divide the numerator by the denominator. 4 divided by 5 is 0.8
Answer:
A quadrilateral and parallelogram
Step-by-step explanation: