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larisa86 [58]
3 years ago
8

Please help me solve these!!!

Mathematics
1 answer:
Marat540 [252]3 years ago
8 0

Answer:

Maybe add or Multply every surface then add the surfaces then get your answer

Step-by-step explanation:

Maybe pay attention next time.

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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 slope of the line x = 3?
babymother [125]

Answer:

Since x=−3 is a vertical line, the slope is undefined.

Step-by-step explanation:

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3 years ago
If there are twice as many bicycles as scooters and there are 945 vehicles in total. How many bicycles and scooters are there in
alexandr402 [8]

Answer:

Bicycles = 315

Scooters = 630, basic mathematics. The most effective method for these questions is substitution. But I might have intermingled them so double check

3 0
3 years ago
Plzz help this is due today
notka56 [123]
1.C 2. No 3.A hope this help
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Please show your work, Due at 11:30. Please help!!!
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Answer:

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Step-by-step explanation:

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