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Vanyuwa [196]
3 years ago
11

Using the given points determine ∆y. (-3,-5) and (0,10)

Mathematics
1 answer:
ryzh [129]3 years ago
4 0
If the question is only asking for the difference between the y in the two points, then the difference can be simply calculated as y2 - y1 as follows:
<span>∆y = y2 - y2 = 10-(-5) = 15 units

If the two given points are to be used to determine the slope of a line, then the slope can be calculated as follows:
slope = (y2-y1) / (x2-x1) = (10--5) / (0--3) = 15/3 = 5</span>
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I’m so confused I need help please!!
shutvik [7]

Answer:

5. 9 8. 2\sqrt{10}

Step-by-step explanation:

a²+b²=c²

so for #5 12²+b²=15²

144+b²=225 (subtract 144 from both sides)

b²=81

b=9

For #8

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81+b²=121 (subtract 81 from both sides)

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b=\sqrt{40}

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6 0
3 years ago
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If a sample of pure sodium has a mass of 8.2 grams and sodium has an average atomic mass of 22.99 g/mol, how many sodium atoms a
Nonamiya [84]
8.2 grams = 1 mol
Na ________
22.99 grams

First multiply the value of 8.2 to 1. Then divide by the value of 22.99 to determine the number of moles of sodium present in the 8.2 gram sample.

Then use the following equation to solve for sodium atoms.

Number of moles of Na • Avogadro Number = Number of sodium atoms.

0.3566782 • (6.02 X 10^23). = 2.1472 X 10 ^ 23. Or 2.15 X 10 ^ 23.

The answer is the second option - 2.15 X 10 ^ 23.
7 0
3 years ago
Pls help math problem pls
Dovator [93]

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Step-by-step explanation:

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5 0
2 years ago
GIVING OUT BRAINLIEST TO WHOEVER CAN PROVIDE THE CORRECT ANSWER !! Asap
saul85 [17]

Answer:

139.48

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4 0
2 years ago
What is 144.44 rounded to the nearest tenth?
Lunna [17]
144.4 is the answer when rounded of to the nearest tenth(1/10 or 0.1)
7 0
3 years ago
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