Answer:
C
Step-by-step explanation:
<h3>7.4 x 10 <em>-3</em>= 0.0074</h3><h3>1.3 x 10 <em>-2</em>= 0.013</h3>
In between them would be 0.0092.
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Answer:
the answer is 124.52
Cut it into 3 shapes, the bottom half circle, the top rectangle, and the middle rectangle
top rectangle:
A= bh
A= 4x10
A=40
middle rectangle:
A=bh
A=4x7
A= 28
Half circle:
A= πxr^2
A=πx6x6
A=πx36
A=56.52
Add it all up and you get the answer above
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Answer:
For
, d = 7.2
Step-by-step explanation:
Here, the given expression is 
To find the value of the variable d :

or, 
Hence, for
, d = 7.2
Answer:
8.6 × 10-4
Step-by-step explanation:
All numbers in scientific notation or standard form are written in the form m × 10n, where m is a number between 1 and 10 ( 1 ≤ |m| < 10 ) and the exponent n is a positive or negative integer. Therefore, the decimal number 0.00086 written in scientific notation is 8.6 × 10-4 and it has 2 significant figures.