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ludmilkaskok [199]
3 years ago
7

Write an EQUATION for the nth term of each arithmetic sequence 15,13,11,9,...

Mathematics
1 answer:
Nataliya [291]3 years ago
8 0
First you have to organize it like this
1 : 2 : 3 : 4
15 : 13: 11 : 9
If the sequence is decreasing then the nth term equation will start with a negative.try to see which will work -1,-2,-3,-4...
The answer is: x= -3n + 17
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I’m horrible at math lol
Svetradugi [14.3K]
The answer is A I am pretty sure. This is because in choice B, you would be dividing 7 and the sum of x + 5. In choice C you would not be multiplying 7 and the sum of x + 5. When he question asks for the product, it is asking for you to multiply. In choice D you would not just be squaring y, you would be squaring 2xy, which is not what we want. We only want to square y, therefore I believe the correct answer is A.
6 0
3 years ago
Can someone please answer these 2 questions.
Volgvan

Answer:

The cross section of sphere is circle

Area of cross section = 25 in²

Step-by-step explanation:

From the figure we can see a cylinder with height 8 inches and volume 200 π in³.

<u>The cross section of the cylinder looks like a circle.</u>

<u>To find the area of cross section</u>

Volume of cylinder = Cross section area * Height

200 = cross section area * 8

cross section area = 200/8

 = 25 in²

Area of cross section = 25 in²

7 0
3 years ago
Change -25.49 to degrees, minutes, and seconds.
velikii [3]

GOOD

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6 0
3 years ago
The volume of a cube is 448cm3.<br> Work out the length of its side rounded to 1 DP. Please hellp
Virty [35]

Answer:

7.65 or 7.7 rounded to 1 DP

Step-by-step explanation:

To find the length of the side of a cube we do the inverse of finding the volume.

one side= x

If x³ = volume, therefore ∛448 is how to find the length of one side.

∛448= 7.65

I hope this helps you.

6 0
3 years ago
(NEED ASAP) 15 POINTS
yulyashka [42]

Answer:

1 and 2 go in the 2nd area and 3 gos to the 1st and 4th gos to the last one

Step-by-step explanation:

hope this helped!

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6 0
3 years ago
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