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bearhunter [10]
3 years ago
13

Which equation matches the graph shown?

Mathematics
2 answers:
Virty [35]3 years ago
6 0

Answer:

A

Step-by-step explanation:

Since it is upside down, it is the one with the negative sign in front of the x. The numbers will continue to increase in the negatives.

butalik [34]3 years ago
6 0

Answer:

ur ans is A

Step-by-step explanation:

GOODLUCK

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Write the slope-intercept form of the equation
evablogger [386]

Answer:

y = -x-5

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8 0
3 years ago
Find the 10th partial sum of the arithmetic sequence defined by
Evgesh-ka [11]

Answer:

22.5


Step-by-step explanation:

If you expand the series, you can see the first few terms of the series:

  • Putting 1 in n, \frac{1}{2}(1)-\frac{1}{2}=0
  • Putting 2 in n, \frac{1}{2}(2)-\frac{1}{2}=0.5
  • Putting 3 in n, \frac{1}{2}(3)-\frac{1}{2}=1
  • Putting 4 in n, \frac{1}{2}(4)-\frac{1}{2}=1.5

We can see the series is 0, 0.5, 1, 1.5, ....

This is an arithmetic series with common difference (the difference in 2 terms) 0.5 and first term 0.

We know formula for sum of arithmetic series:

s_{n}=\frac{n}{2}(2a+(n-1)d)

Where,

  • S_{n} denotes the nth partial sum
  • a is the first term (in our case it is 0)
  • n is the term (in our case it is 10 since we want to find 10th partial sum -- sum until first 10 terms)
  • d is the common difference (difference in term and the previous term) (in our case it is 0.5)

Substituting these into the formula, we get the 10th partial sum to be:

s_{10}=\frac{10}{2}(2(0)+(10-1)(0.5))\\s_{10}=5(0+(9)(0.5))\\s_{10}=5(0+4.5)\\s_{10}=5(4.5)\\s_{10}=22.5

So the sum of the first 10 terms is 22.5. Third answer choice is right.


8 0
3 years ago
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Answer:

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Step-by-step explanation:

According to the question:

Tyler's original height = -100 feet

Tyler's final height = 40

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As initial + change = final, the equation would be:  

-100 + x = 40  

Please mark it as brainliest if it helps you!

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3 years ago
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What is the distance between point A(−1, 3) and point B(−8, 3) ?
balu736 [363]

Answer:

7 units

Step-by-step explanation:

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What is orthogonal in linear algebra
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This is a square matrix whose entries are real and rows and columns are orthogonal unit vectors.
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