The result of the multiplication in scientific notation is given by:

<h3>What is scientific notation?</h3>
A number in scientific notation is given by:

With the base being
.
When we multiply two numbers in scientific notation, we multiply the bases and add the exponents.
For this problem, the numbers are given by:

The result of the multiplication is given by:

The result of the multiplication in scientific notation is given by:

More can be learned about scientific notation at brainly.com/question/16394306
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Answer:
a=28
Step-by-step explanation:
a+20=48
a=48-20
a=28
Answer:
C
Step-by-step explanation:
Answer:
43°
Step-by-step explanation:
A triangle has a total angle of 180° and we can use it to find the answer.
The attachment is a visualization of the triangle.
In order to find angle T, we can use the triangle formula to find t.

By substituting r and s, we will get

Hence, we can find T, which is
