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klasskru [66]
3 years ago
6

If a thermometer indicates 40 degrees Celsius, what's the temperature in degrees Fahrenheit? A. 22°F B. 72°F C. 54°F D. 104°F

Mathematics
1 answer:
Elena L [17]3 years ago
5 0
F = 9/5C + 32

F = 9/5(40) + 32
F = 72 + 32
F = 105

40°C is ~105°F,  and the closest would be D.
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Determine which relation is a function.
choli [55]
Hello!

In a function, each input must have only one output. Outputs can have multiple inputs, but each input must have one output. For example, {(4,-1), (4,-2)<span>} is not a function, as 4 has two outputs.

In B, -2 has two outputs, 3 and 1, so it is not the answer.

In C, 3 has two outputs, 5 and 2, so it is not a function.

In D,-1 has two outputs, 1 and 5, so it will not work.

In A, each number has one output, so it is a function.

I hope this helps!</span>
6 0
3 years ago
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Susie has 8/9 cup of ice cream. How many 1/4 cup servings can she make?
soldier1979 [14.2K]

Answer:

8 cups of ice cream

Step-by-step explanation:

1/4×8=8 cups

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3 years ago
Anna has fabric that is 1/4 yard long. She needs to cut the fabric into pieces that are 1/8 yard long. How many 1/8 yard long pi
Damm [24]

Answer:

2

Step-by-step explanation:

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8 0
3 years ago
HELPPPPPPP on this question.! I need to pass.
timurjin [86]

9514 1404 393

Answer:

  12.25 (or -18.75)

Step-by-step explanation:

If you pay attention to the square of a binomial, ...

  (x -a)² = x² -2ax +a²

You see that the constant (a²) is the square of half the x-coefficient. That is, the x-coefficient is -2a, half that is -a, and the square of that is (-a)² = a².

In your equation, the x-coefficient is -7, half that is -3.5, and the square of that is 3.5² = 12.25.

So, you can think of this ambiguous question in a couple of ways.

<u>Concern is only with the x-terms</u>:

  x² -7x +31 = (x² -7x +12.25) +31 = 12.25 . . . . . . add 12.25 to both sides

  (x -3.5)² +31 = 12.25 . . . . write the x-terms as a square

<u>Concern with the equation overall</u>:

You want the end result to have the x-terms in the form of the square ...

  (x -3.5)² = x -7x +12.25

The left side of the equation can be put in that form by adding -18.75 to both sides;

  x² -7x +31 -18.75 = -18.75 . . . . . . add -18.75 to both sides

  x² -7x +12.25 = -18.75 . . . . . . . . . simplify

  (x -3.5)² = -18.75 . . . . . . write the left side as a square

__

The short of it is that we're not sure what the question is asking for exactly. The "help video" would probably clarify the intent. Most likely, you're concerned with adding the square of half the x-coefficient, 12.25.

3 0
2 years ago
Can some please help me with this problem It's a little confusing to me.
Nat2105 [25]
Diameter = 10.0002 inches, or 10 inches since were rounding to the nearest whole number.
4 0
3 years ago
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