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Firdavs [7]
4 years ago
11

2gh – (3 + 7) + x/4 Choose 3 answers

Mathematics
1 answer:
Gwar [14]4 years ago
5 0

Answer:2182

Step-by-step explanation:

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Find the 20th term of the arithmetic sequence
Irina18 [472]
First we must look at the sequence 15,9,3,-3...

You can see that the value is decreasing by 6 every term. Because the rate is drawing at a constant rate the sequence must be linear, meaning that the slope is -6.

If we look at the general function of a line in slope intercept form:

y = mx + b
where m is the slope and b is the y intercept. The trick to find the y intercept is to go backwards, in other words what was the previous term? 15+6=21. Therefore, m=-6 and b=21 and thus,

y =  - 6 x+ 21
Since we want to know the value of y even x=20 we obtain:

y =  - 6(20) + 21 \\  \\ y =  - 99
4 0
3 years ago
Read 2 more answers
HELP PLEASE I do not know what to do i can only add photos of the answers i need help fast thank you
IRISSAK [1]

Answer:

f(x) = 3 if x ≤ -2

     =  1 if x > -2 ⇒ attached figure

Step-by-step explanation:

* Lets explain how to answer the question

- For the part of the graph on the left side (2nd quadrant)

- There is a horizontal line start from x = -∞ and stop at x = -2

- The end of the line is black dot means x = -2 belongs to the function

- The horizontal line drawn at y = 3

∴ The equation of the horizontal line is y = 3

∴ The function represents this part of graph is y = 3 if x ≤ -2

- The other part of the graph is also horizontal line start from

  x = -2 to x = ∞

- The end of the line is white dot means x = -2 does not belong

 to the function

- The horizontal line drawn at y = 1

∴ The equation of the horizontal line is y = 1

∴ The function represents this part of graph is y = 1 if x > -2

* f(x) = 3 if x ≤ -2

       =  1 if x > -2

- The answer is attached

6 0
3 years ago
Does this image have a vertical reflection, horizontal reflection, and rotation? I'll give brainiest!
ElenaW [278]

Answer:

Reflection with respect to the x axis

Step-by-step explanation:

Reflection with respect to the x avis, or horizontal reflection.

3 0
3 years ago
If AB=7x, CB=5x+8 and BD AC what is the length of CB
seropon [69]

Answer:

x = 4

CB = 28

Step-by-step explanation:

In triangle ABC,

AB = CB..... (given)

Therefore,

7x = 5x + 8

7x - 5x = 8

2x = 8

x = 8/2

x = 4

CB = 5x + 8 = 5*4 + 8 = 20 + 8 = 28

8 0
3 years ago
Mr. Jones wants to add a cement path around his new pool. The pool has a radius of 7 feet. The cement path will be 1 foot wide a
Aleonysh [2.5K]

The square footage of the path is 47.1 ft²

The area of a circle is:

A = πr²

Where r is the radius of the circle.

Let us assume that the pool is a circle.

Given that the pool has a radius (r₁) of 7 feet and a path 1 foot wide would go round the pool.

Radius of pool and cement path (r₂) = 7 ft + 1 ft = 8 ft.

The square footage of the path =  πr₂² - πr₁² = π*8² - π * 7² = 47.1 ft²

Hence The square footage of the path is 47.1 ft²

Find out more at: brainly.com/question/23328170

7 0
2 years ago
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