3 years ago

Help will give crown

Mathematics

2 answers:

Lunna [17]3 years ago

6 0

Answer:

x y

2 9

3 7

4 5

5 3

Step-by-step explanation:

Tanya [424]3 years ago

5 0

Answer:

The order is from up to down

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4 years ago

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A new movie is released each year for 8 years to go along with a popular book series. Which movie is 5 minutes longer than the l

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Answer:

$\boxed{\text{12 h 20 min}}$

Step-by-step explanation:

1. Find the eighth term

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aₙ = a₁ + (n - 1)d

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a₈ = 75 + (8 - 1) × 5 = 75 + 7 × 5 = 75 + 35 = 110

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The formula for sum of the first n terms of an arithmetic sequence is

$S_{n} & = & \dfrac{n(a_{1} + a_{n})}{2}$

$\begin{array}{rcl}S_{8}& = & \dfrac{8(75 +110)}{2}\\& = & 4 \times 185\\& = & \text{740 min}\\& = & \textbf{12 h 20 min}\\\end{array}\\\text{The total length of all eight movies is }\boxed{\textbf{12 h 20 min}}$

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4 years ago