9, 14, 14, 19, 19 is this geometric or arithmetic or neither if neither give the next two sequence

Mathematics

1 answer:

den301095 [7]4 years ago

7 0

Add 5 to 19 and get 24 24

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Please please please help make sense of this

Nadya [2.5K]

The enclosed shape is that of a trapezoid. The area of a trapezoid is the product of the height of it (measured perpendicular to the parallel bases) and the average length of the two parallel bases. The formula is generally written ...

... A = (1/2)(b₁ + b₂)·h

Here, the base lengths are the y-coordinates at x=4 and x=9. The height is the distance between those two x-coordinates: 9 - 4 = 5.

You are expected to find the y-values at those two points, then use the formula for the area of the trapezoid.

You can save a little work if you realize that the average of the two base lengths is the y-coordinate corresponding to the average x-coordinate: (9+4)/2 = 6.5. That is you only need to find the y-coordinate for x=6.5 and do the area math as though you had a rectangle of that height and width 5.

Going that route, we have

... y = 2(6.5) - 1 = 13 - 1 = 12

Then the trapezoid's area is

... A = 12·5 = 60 . . . . square units.

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3 years ago

Katie has read 34% of a book. If she read 85 pages, does she have more than or fewer than 125 pages left to read? Explain

mestny [16]

Determine the percent of book she hasn't read.
percent = 100% - percent she has read
percent = 100% - 34%
percent = 66%
She hasn't read 66% of the book.

Find the amount of page she hasn't read.
page = $\dfrac{\text{percent hasn't read}}{\text{percent has read}} \times\ \text{page has read}$
page = $\dfrac{66\%}{34\%} \times\ 85$
page = $\dfrac{66}{34} \times\ 85$
page = $\dfrac{5,610}{85}$
page = 165

The number of page she hasn't read is 165. It's more than 125.

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4 years ago

The set of all output values y in a function is called the ___ of the function

Debora [2.8K]

Range of a function.

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4 years ago

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Find the value of X and Y.

spin [16.1K]

X=14 Y=12 I hope this helpex.

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