Answer:
the index of 2 is -1
Step-by-step explanation:

=
=
Answer:
372,000 femtoseconds
Step-by-step explanation:
<u>1 picoseconds = 1000 femtoseconds</u>
372 picoseconds = 1000 * 372 femtoseconds
1000 * 372
372,000
Answer: 372,000 femtoseconds
Variance of a continuous random variable X is defined as
Standard deviation is defined as

Hence standard deviation is the positive square root of variance.
Answer:
$ 154
Step-by-step explanation
Let the value of suitcase=x
x × 4.5% = 6.93 (converted the question into equation)
x ×
= 6.93 (converted the percentage into fraction)
x = 6.93 x
(took reciprocal of 4.5/100 after moving it to the other side of the equation)
x =
(multiplied the values)
x = 154 $ (simplified the fraction)
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<em>429 cm²</em>
- Step-by-step explanation:
<em>A(blue) =</em>
<em>= 2×6cm×10cm + 2×6cm×8cm + 8cm×10cm + (8cm×10cm - 5cm×4cm)</em>
<em>= 120cm² + 96cm² + 80cm² + 60cm²</em>
<em>= 356 cm²</em>
<em>A(green) =</em>
<em>= 4cm×5cm + 2×5cm×5cm/2 + 4cm×7cm</em>
<em>= 20cm² + 25cm² + 28cm²</em>
<em>= 73 cm²</em>
<em>A(total) =</em>
<em>= A(blue) + A(green)</em>
<em>= 356 cm² + 73 cm²</em>
<em>= 429 cm²</em>