Answer:
The statement is as follows:
Explanation:
We had better avoid such correlated subqueries by instead using aggregation with GROUP BY:
SELECT
c.email_address,
COUNT(DISTINCT o.order_id) AS num_orders,
COALESCE(SUM(oi.quantity * (oi.item_price - oi.discount_amount)), 0) AS total_amount
FROM customers c
LEFT JOIN orders o
ON c.customer_id = o.customer_id
INNER JOIN order_items oi
ON o.order_id = oi.order_id
GROUP BY
c.customer_id,
c.email_address;
Answer: Incoherent question
Explanation: This is an act of plagiarism at subjecting the tutor to unnecessary stress at answering the purported question.
Answer:
The classification of the concern is listed in the interpretation segment below.
Explanation:
(a)...
<u>Simple cubic lattice</u>
<u />
Now,
The unit cell volume will be:



At one atom per cell, atom volume will be:

Then the ratio will be:


(b)...
<u>Diamond lattice</u>
The body diagonal will be:


The unit cell volume will be:


At eight atom per cell, the atom volume will be:

Then the Ratio will be:


Note: percent = %
Answer:
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Explanation:
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