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marusya05 [52]
3 years ago
13

Please show me what formula to use to solve equation x2-6x=13

Mathematics
1 answer:
makvit [3.9K]3 years ago
3 0
X^2-6x=13
(x-3)^2-9=13
(x-3)^2=22
(x-3)= +-sqrt22
x = sqrt22+3 or x = -sqrt22+3
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(6 1/3-1/6x 36=?<br> 221/6<br> 216<br> 222<br> 242
scoundrel [369]

Answer:

<em>-(6 1/3-1/6x 36=216</em>

Hope I helped

8 0
3 years ago
20 POINTS
chubhunter [2.5K]
Answer: 2 inches, 3 inches, or 3.125 and 2.083


Explanations:
The simplest way is to take 20% of the 2.5 inches and go that much above & below 2.5 inches.

2.5 x 20% = 2.5 x 0.20 = 0.5

So 2.5 - 0.5 = 2 inches was predicted
And 2.5 + 0.5 = 3 inches was predicted.

The more complicated way is to see number + 20% of that number = 2.5, and what number - 20% = 2.5.

Which solution sounds more like what you’re doing in class right now?

If it’s the more complicated way:

0.8x = 2.5 (80% of the predicted rain value equals 2.5)
x = 3.125 inches was predicted

1.2x = 2.5 (120% of the predicted rain value equals 2.5)
x = 2.083 inches was predicted

Sorry, this is probably confusing. Let me know what questions you have.
6 0
3 years ago
Characteristics of ratio
Gre4nikov [31]
It has orders and equally distanced value between units , the zero point characteristic makes it relevant or meaningful to say “ one object has twice the length of the other “ example
4:3 is a ratio
5 0
3 years ago
The glasses that Pierre wants to buy cost $230. If he waits for them to go on sale next week, he can get a 15% discount. How muc
otez555 [7]

Answer:

$34.50 saved

Step-by-step explanation:

230 - 15% = $195.5

230 - 195.5 = 34.5 saved

4 0
3 years ago
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Answer:

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