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Svetradugi [14.3K]
3 years ago
15

The temperature is -12.6 degrees Celsius. The temperature goes up 7.9 degrees. What is the new temperature?

Mathematics
1 answer:
djverab [1.8K]3 years ago
5 0

Answer: -4.7 degrees Celsius

Step-by-step explanation:

-12.6 + 7.9 = -4.7

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PSYCHO15rus [73]

Answer:C

Step-by-step explanation:

8 0
3 years ago
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To test the purity of the hydrazine, the chemist collected a sample 1/2000th the volume of the batch produced. If the sample siz
Bad White [126]

If 0.4 liters is 1/2000 of the production batch, then the production batch is 2000 * 0.4 liters

2000 * 0.4 liters = 800 liters

3 0
3 years ago
Park service personnel are trying to increase the size of the bison population of a large park. If 140 bison currently live in t
natali 33 [55]

Answer:

y(t) = 140 (2.7)^{0.01t}

Where t represent the time in years

For this case this model follows the general model given by:

y = a b^t

Where a = 140 represent the initial amount of bisons and y the number of bisons after t years and b = 2.7 represent the growth rate

For this case we want to find the value of y when t =30, and if we replace the value of t =30 in our function we got:

y(30) = 140(2.7)^{0.01*30} = 188.598

And if we round to the nearest whole number we got 189 bisons after 30 years

Step-by-step explanation:

For this case we have the following function given:

y(t) = 140 (2.7)^{0.01t}

Where t represent the time in years

For this case this model follows the general model given by:

y = a b^t

Where a = 140 represent the initial amount of bisons and y the number of bisons after t years and b = 2.7 represent the growth rate

For this case we want to find the value of y when t =30, and if we replace the value of t =30 in our function we got:

y(30) = 140(2.7)^{0.01*30} = 188.598

And if we round to the nearest whole number we got 189 bisons after 30 years

7 0
3 years ago
Find the domain and range of the function. (Enter your answers using interval notation.) h(x) = √4 − x^2
iris [78.8K]

Answer:

The range and domain of this function is [-2, 2]

Step-by-step explanation:

For the domain it must be fulfilled that (4-x^2)\geq 0. Then, (2 + x) (2-x)\geq 0. This expression is true for the values of x that make the factors simultaneously non-negative or non-positive.

Case non-negative factors

2 + x \geq 0 implies that x \geq -2, that is [-2, +\infty]

2-x \geq 0 implies that x \leq 2, that is, (-\infty, 2]. The intersection of the previous sets is [-2, 2].

Case non positive factors

2 + x \leq 0 implies that x \leq -2, that is (-\infty, -2]

2-x \leq 0 implies that 2 \leq x, that is, [2,+\infty). The intersection of the previous sets is empty.

Then the domain of the function is [-2, 2]

The range of this function is the domain of its inverse. The inverse of the function is itself, so the range is [-2, 2]

3 0
3 years ago
If you triple 4 and subtract 2 each day, how many day until you have zero?
weqwewe [10]
I'll take it that it's implied that we're only subtracting 2 everyday, and only triple 4 once.

So, let's break this down.

Triple 4. This means to multiply by 3, or self-add 4 three times.

It should look like this:
4 + 4 + 4
or
4(3) or 4 • 3.

Let's go with the addition path, as it's easier to understand.
4 + 4 + 4. (Total of three 4's)
4 + 4 = 8 (Get rid of two 4's)
We are now left with one 4.
Add it to our current sum, 8.
8 + 4 = 12.

We now have 12 total.
However, since we're subtracting 2 EACH day, we'll have to divide 12 by 2 to find how many days until we reach zero.
12 / 2 = 6.

It will take 6 days for you to have zero.

I hope this helps!

6 0
3 years ago
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