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Oliga [24]
2 years ago
11

Find the sum: -1 + 2 + 5 + ... + 20

Mathematics
1 answer:
mariarad [96]2 years ago
6 0
26 is the correct answer
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Hello can you please help me out on this question posted picture
Tatiana [17]
For a parabola if
a) Squared term is x
Parabola either opens up or down.
Positive coefficient means upward opening and negative coefficient means downward opening

b) Squared term is y
Parabola either opens right or left
Positive coefficient means rightwards opening and negative coefficient means leftwards opening

In the given question, since the squared term is y and coefficient is negative, the parabola will open towards left.

So correct answer is option B

4 0
3 years ago
Find the product. −2 (3.1) lol another
sergij07 [2.7K]

Answer:

-6.2

Step-by-step explanation:

multiply -2 times 3.1

6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%20%7B9%7D%5E%7B2%7D%20-%202%281%20%2B%203%29" id="TexFormula1" title=" {9}^{2} - 2(1 + 3)" al
Dmitrij [34]
The answer is 73 because you solve 9^ 2 which is 81 then multiply 2 times 4 which is 8 then subtract 81 and 8 which is 73
8 0
3 years ago
Read 2 more answers
On your last math quiz, you got 15
dlinn [17]

Answer: 75%

Step-by-step explanation: So 15/20 simplified is 3/4 and 3 divided by 4 equals 0.75. To convert a decimal to a percentage, you multiply 0.75 by 100 to get 75%.

3 0
3 years ago
What's the answer to this questions?
tia_tia [17]
I believe the answer is 2 :) .
6 0
3 years ago
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