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Alisiya [41]
3 years ago
9

Which set below is the domain of

Mathematics
2 answers:
OlgaM077 [116]3 years ago
8 0

Answer:

\large \boxed{\sf D. \ \{2,-1,0,4\}}

Step-by-step explanation:

The domain are all possible values of x.

\{(2, -3),(-1,0), (0,4),(-1,5),(4, -2)\}

The x values are 2, -1, 0, -1, and 4.

The domain of the set is {2,-1,0,4}​.

GREYUIT [131]3 years ago
3 0

Answer:

Domain { -1,0,2,4}

Step-by-step explanation:

{(2, -3),(-1,0), (0,4),(-1,5),(4, -2)}

The domain is the input values

Domain { 2,-1,0,-1,4}

We normally write them in order from smallest to largest and no repeating

Domain { -1,0,2,4}

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Solve y = x2 +11 for x.
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Answer:

x = ±sqrt(y-11)

Step-by-step explanation:

y = x^2 +11

Subtract 11 from each side

y -11 = x^2 +11-11

y-11 = x^2

Take the square root of each side

±sqrt(y-11) = sqrt(x^2)

±sqrt(y-11) = x

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3 years ago
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i think the answer be 150 feet per minute

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3 years ago
Car A travels at 35 miles per hour and Car B travels at a greater speed of x miles per hour. Choose the expression that represen
Rina8888 [55]

Answer:

-2x+25 D

Step-by-step explanation:

To determine how far it will go in an unspecified number of hours, we can let t = time in hours. The letter t will be our variable. Assuming that the car travels at the same speed, we can state that the rate is 55, and that will be our constant. The expression would then be:

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How many of the numbers from 10 through 92 have the sum of their digits equal to a perfect​ square?
horrorfan [7]
All the numbers in this range can be written as 10d_1+d_0 with d_1\in\{1,2,\ldots,9\} and d_2\in\{0,1,\ldots,9\}. Construct a table like so (see attached; apparently the environment for constructing tables isn't supported on this site...)

so that each entry in the table corresponds to the sum of the tens digit (row) and the ones digit (column). Now, you want to find the numbers whose digits add to perfect squares, which occurs when the sum of the digits is either of 1, 4, 9, or 16. You'll notice that this happens along some diagonals.

For each number that occupies an entire diagonal in the table, it's easy to see that that number n shows up n times in the table, so there is one instance of 1, four of 4, and nine of 9. Meanwhile, 16 shows up only twice due to the constraints of the table.

So there are 16 instances of two digit numbers between 10 and 92 whose digits add to perfect squares.

7 0
3 years ago
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