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3 years ago

Some people were asked how long it takes them to commute to work.

Mathematics

2 answers:

alexgriva [62]3 years ago

8 0

Answer:

Range: 55

Step-by-step explanation:

Range = subtraction of the smallest number in the data set to the greatest number in the data set.

Greatest number: 1 hr (60 minutes)

Smallest number: 5 minutes

Range = 60 - 5

= 55

Hope this helps!

telo118 [61]3 years ago

6 0

The answer is 55 darling

The Range is the difference between the lowest and highest values. Example: In {4, 6, 9, 3, 7} the lowest value is 3, and the highest is 9. So the range is 9 − 3 = 6. It is that simple!

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Can someone help me with this

Arada [10]

Answer:

45 degrees

Step-by-step explanation:

A circle is 360 degrees total so 360 - 315 is equal to 45 degree.

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4 years ago

Find S9, the sum of the geometric series to the 9th term, in which a3=3.645 and a8=15

ArbitrLikvidat [17]

Answer:

The sum of the first nine terms of the sequence is 74.44.

Step-by-step explanation:

Geometric sequence concepts:

The nth term of a geometric sequence is given by the following equation.

$a_{n+1} = ra_{n}$

In which r is the common ratio.

This can be expanded for the nth term in the following way:

$a_{n} = a_{1}r^{n-1}$

In which $a_{1}$ is the first term.

Or even:

$a_{n} = a_{m}r^{n-m}$

The sum of the first n terms of a geometric sequence is given by:

$S_{n} = \frac{a_{1}(1 - r^{n})}{1 - r}$

Finding the common ratio:

$a_{3} = 3.645, a_{8} = 15$

$a_{n} = a_{m}r^{n-m}$

$a_{8} = a_{3}r^{8-3}$

$a_{3}r^{5} = a_{8}$

$3.645r^{5} = 15$

$r^{5} = \frac{15}{3.645}$

$r = \sqrt[5]{\frac{15}{3.645}}$

$r = 1.327$

Finding the first term:

$a_{3} = a_{1}r^{2}$

$a_{1} = \frac{a_{3}}{r^{2}}$

$a_{1} = \frac{3.645}{(1.327)^{2}}$

$a_{1} = 2.07$

Sum of the first nine terms:

$S_{9} = \frac{2.07*(1 - (1.327)^{9})}{1 - 1.327} = 74.44$

The sum of the first nine terms of the sequence is 74.44.

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Answer:

Step-by-step explanation:

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2 years ago

On Monday, Luis picked up seven scones and four large coffees for the office staff. he paid $25.76. On Tuesday Rachel picked up

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Answer:

let the scone be x and the large coffees be y.

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