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frez [133]
3 years ago
11

Determine whether the following sequence is arithmetic, geometric, or neither.

Mathematics
1 answer:
Slav-nsk [51]3 years ago
7 0

Answer:

B

Step-by-step explanation:

A geometric sequence has a common ratio r between consecutive terms

r = \frac{a_{2} }{a_{1} } = \frac{a_{3} }{a_{2} } = ...

\frac{-14}{-7} = 2

\frac{-28}{-14} = 2

\frac{-56}{-28} = 2

There is a common ratio of 2 between consecutive terms.

Hence sequence is geometric → B

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A right triangle has side lengths 7, 24, and 25 as shown below.
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Answer:

Steps below

Step-by-step explanation:

The value depends on which angle is B, suppose ∠B is the opposite angle of side length 7

sin B = 7/25

cos B = 24/25

tan B = 7/24

if ∠B opposite to side length of 24

sin B = 24/25

cos B = 7/25

tan B = 24/7

4 0
3 years ago
A group of students must collect at least $120 to organize a science fair. They have already collected $30. Which graph best rep
Bezzdna [24]
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because you already have 30 dollars and they need at least 120 but if they get more then 120 they can still hold the science fair.
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3 years ago
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In a survey, 250 adults and children were asked whether they know how to swim. The survey data are shown in the relative frequen
Anna [14]

Answer:

A 40%

Step-by-step explanation:

6 0
3 years ago
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Percents from Tabled Values
alexandr1967 [171]

Answer:

  • 17.9% of men have a HS degree
  • 50.5% of 2-yr degree earners were women
  • 27.9% of the group has a 4-yr degree or higher

Step-by-step explanation:

It is convenient to use a spreadsheet to total the numbers for you. This reduces errors and put the numbers in a form that makes it easy to see what you're working with in any given calculation.

  men with HS degree = (male HS)/(all male)

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  2-yr degrees that are women = (female 2-yr)/(2-yr total)

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  4-yr degrees in group = (4-yr degrees)/(total group)

  = 258/925 ≈ 0.2789 ≈ 27.9%

_____

<em>Comment on the problem</em>

The spreadsheet is identical to the one used for your other problem. All that needed to be done was to enter the new numbers. The formatting, headers, and formulas remained the same. For solving these problems, it's a matter of picking the two numbers needed from the appropriate row or column and computing their ratio.

(The computations were done by hand here to better show you the numbers used and the rounding to tenth percent. They can be done in the spreadsheet with point and click.)

3 0
3 years ago
A pair of shoes that are regularly priced at $82.88 are on sale for 35% off. what is the sale price of the shoes? a $29.01 b $47
Andrei [34K]
If they are 35% off, then u r actually paying 65%....
65% of 82.88.....turn percent to a decimal...." of " means multiply....
0.65(82.88) = 53.87 <== sale price
6 0
3 years ago
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