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Serga [27]
2 years ago
13

Which equation is equivalent to the equation x^2+y^2= 25?

Mathematics
1 answer:
satela [25.4K]2 years ago
3 0

9514 1404 393

Answer:

  D.  y = ±√(25 -x²)

Step-by-step explanation:

Subtract x² and take the square root to solve for y.

  x² +y² = 25 . . . . . . . given

  y² = 25 -x² . . . . . . . . subtract x²

  y = ±√(25 -x²) . . . . . take the square root

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Josh made 8 3/4 cups of jello. if he serves it in 1/2 cup servings, how many people can he serve?
juin [17]

Answer: 17 people

Step-by-step explanation:

You divide 8 3/4 and 1/2 and you get 17 1/2

And since the question asks how many people can he serve you use the whole number because its not fair if you give a full serving to a person and half a serving to another.

3 0
3 years ago
A password has to use the following format: LDDDDLLL, where L can be any of the upper case letters in the alphabet, and D can be
maw [93]

Answer:

Only vowels and odd numbers:

P = \frac{5}{26} *\frac{4}{25}* \frac{3}{24}* \frac{2}{23} *\frac{5}{10}* \frac{4}{9} *\frac{3}{8} *\frac{2}{7}

Spells math:

P = \frac{1}{26} *\frac{1}{25}* \frac{1}{24}* \frac{1}{23}

Step-by-step explanation:

We have four letters, so the probability that one letter is a vowel is 5/26 (we have 5 vowels in a total of 26 letters), then the second letter has a probability of 4/25 of being a vowel (1 vowel used), and so on (third letter being vowel = 3/24 and fourth letter being vowel = 2/23)

Then, for the digits, we do the same, one digits has 5/10 probability of being odd, then the second digit has 4/9, the third has 3/8 and the fourth has 2/7.

So the final probability would be:

P = \frac{5}{26} *\frac{4}{25}* \frac{3}{24}* \frac{2}{23} *\frac{5}{10}* \frac{4}{9} *\frac{3}{8} *\frac{2}{7}

To find the probability that the password spells the word “MATH", each letter has to be a specific letter, so the first letter has 1/26 probability, the second has 1/25, and so on:

P = \frac{1}{26} *\frac{1}{25}* \frac{1}{24}* \frac{1}{23}

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3 years ago
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can you show the number line please

7 0
3 years ago
A parking lot charges $1.50 for the first hour of of parking and 55 cents for each additional half hour.how much would it cost t
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3 0
3 years ago
Read 2 more answers
. The table models how the population of a city has changed over time. What does the y-intercept represent?
stealth61 [152]

Answer:

The y-intercept represent:

122,000 (1985) represents the starting population from when they began calculating the data.

Means the population of city in 1985 before it starting changing every 5 years they counted the population to update the data.

Step-by-step explanation:

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2 years ago
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