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Mnenie [13.5K]
3 years ago
5

Please Help! I will give Brainliest!!HELP ANYONE!!!

Mathematics
1 answer:
Norma-Jean [14]3 years ago
5 0

Answer:

A) x < 0

Step-by-step explanation:

Since the circle is open, that means the dot does not include the number it is on. The line goes into the negatives, it is less than zero and does not include zero. So the answer is A, x is less than but not equal to 0.

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The 9th and the 12th term of an arithmetic progression are 50 and 65 respectively. find the common difference
Rzqust [24]

The first term of the arithmetic progression exists at 10 and the common difference is 2.

<h3>How to estimate the common difference of an arithmetic progression?</h3>

let the nth term be named x, and the value of the term y, then there exists a function y = ax + b this formula exists also utilized for straight lines.

We just require a and b. we already got two data points. we can just plug the known x/y pairs into the formula

The 9th and the 12th term of an arithmetic progression exist at 50 and 65 respectively.

9th term = 50

a + 8d = 50 ...............(1)

12th term = 65

a + 11d = 65 ...............(2)

subtract them, (2) - (1), we get

3d = 15

d = 5

If a + 8d = 50 then substitute the value of d = 5, we get

a + 8 * 5 = 50

a + 40 = 50

a = 50 - 40

a = 10.

Therefore, the first term is 10 and the common difference is 2.

To learn more about common differences refer to:

brainly.com/question/1486233

#SPJ4

4 0
2 years ago
What is the diameter of a circular swimming pool with a radius of 9 feet? Enter only the number
antiseptic1488 [7]

Answer:d=18FT

Step-by-step explanation:

YOUR WELCOM :)

8 0
2 years ago
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What is the volume of a cylinder when the radius is 3 and height is 7
kap26 [50]

Answer:

63pi

Step-by-step explanation:

the formula for the volume of a cylinder is pi r^2 h

r=radius

h=height

3=r

7=h

pi((3)^2)7

63pi units^3

Hope that helps :)

5 0
3 years ago
Read 2 more answers
Explain why a square can never be a trapezoid
Sever21 [200]
Trapezoids cannot have all equal side lengths or 90 degree angles. 
7 0
2 years ago
The area of a rectangular pool deck is 168 feet the length is 14 feet what is the width of the pool deck
Hitman42 [59]

Answer:

12 ft

Step-by-step explanation:

Area = Length * Width

168 = 14 * W

168/14 = W

W = 12 ft

7 0
2 years ago
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