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Vanyuwa [196]
3 years ago
14

How to solve -x^2-2x=5?

Mathematics
1 answer:
anastassius [24]3 years ago
6 0
-x^2 - 2x - 5=0
-(x^2 + 2x + 1) -4=0
(x +1)^2= -4
=> Impossible. There is no x
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Complete the recursive formula of the arithmetic sequence 8, -5, -18, -31,...8,−5,−18,−31,...8, comma, minus, 5, comma, minus, 1
dimaraw [331]

The recursive formula for the arithmetic sequence is given as follows:

  • d(1) = 8.
  • d(n) = d(n - 1) - 13.

<h3>What is an arithmetic sequence?</h3>

In an arithmetic sequence, the difference between consecutive terms is always the same, called common difference d.

The nth term of an arithmetic sequence is given by:

a_n = a_1 + (n - 1)d

In which a_1 is the first term.

The recursive formula for the sequence is given by:

a_n = a_{n-1} + d

In the sequence 8, -5, -18, -31,...8,−5,−18,−31, the first term and the common ratio are given as follows:

a_1 = 8, r = 13

Hence, the recursive sequence is given by:

  • d(1) = 8.
  • d(n) = d(n - 1) - 13.

More can be learned about arithmetic sequences at brainly.com/question/6561461

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3 0
2 years ago
Use the diagram below to answer the questions.<br> -17h<br> 119°<br> с<br> G<br> Find m_PCT
pshichka [43]

Answer:

119°

Step-by-step explanation:

It’s 119.  You don’t need to solve for h.

7 0
2 years ago
Helpp answer thiss please​
aleksandrvk [35]
The length of the side of the small triangle is 4...the side length of the large triangle is 9 (5+4), not 5. It should be correctly written as 4/6 = 9/x
3 0
3 years ago
How do I show my work for 828÷2
Margarita [4]

Answer:

414

Step-by-step explanation:

So the first thing you do is to see if 8 can go to two yes right so it's 4 and then you have two left but going to be 1 and then you have to put the 1 on the top and then you have 8 left and that's 4 and that's it

7 0
3 years ago
Need help solving this
Airida [17]

There would be 101.33 students the following year

<h3>Ratios </h3>

From the question, we are to determine the number of students for the following year

From the given information,

There are 3 PA's for 38 students

If the ratio stays the same and

There were 8 PA's the following year, the number of students would be x

x = (8 × 38) / 3

x = 304 / 3

x = 101.33 students

Hence, there would be 101.33 students the following year

Learn more on Ratios here: brainly.com/question/2914376

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4 0
2 years ago
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