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sertanlavr [38]
2 years ago
15

What is the domain of f(x)=

Mathematics
1 answer:
asambeis [7]2 years ago
3 0

Answer: All real numbers

Step-by-step explanation:

The domain is the set of inputs.

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Write an expression that is equivalent to the following: <br><br> x+x+x+x-20
SSSSS [86.1K]

Answer:

4x-20 is the same as x+x+x+x-20

8 0
3 years ago
Read 2 more answers
Dans computer reads 68% of battery left after 1 hour. If the rate of using power remains the same, about how much longer will hi
Tanya [424]

Answer:

28 minutes

Step-by-step explanation:

Dans computer reads 68% of battery left after 1 hour. This means that 1 hour is 68% of the computer's entire battery life.

Let the entire battery life be x (in hours). Hence:

\frac{1}{x} * 100 = 68

Therefore:

\frac{100}{x} = 68\\\\x = \frac{100}{68}

=> x = 1.47 hrs = 1 hr 28 minutes

Hence, the entire battery life is 1 hr 28 minutes.

If 1 hour has elapsed, the remaining time left for his battery to provide power will therefore be:

1 hr 28 minutes - 1 hr = 28 minutes

His battery will provide power for 28 more minutes.

7 0
3 years ago
A​ chef's specialty calls for ​one- fiftieth of an ounce of a spice per serving. The chef has a digital scale that shows the wei
Anna35 [415]

Answer:

The scale reading that the chef need to see for this spice when preparing the specialty for 43 people is 0.86.

Step-by-step explanation:

In order to find the answer, you need to multiply the amount that the chef uses per serving for the number of servings. The statement indicates that the chef uses ​one- fiftieth of an ounce of a spice per serving and this is represented as 1/50 and you have to multiply this for 43 that is the number of people.

You can find 1/50 as a decimal dividing 1 by 50:

1/50=0.02

Now, you can multiply this value for 43:

0.02=43=0.86

According to this, the answer is that the scale reading that the chef need to see for this spice when preparing the specialty for 43 people is 0.86.

3 0
3 years ago
Evaluate −2(2/5)^10x for x=1/5.
kenny6666 [7]

Answer:

-8/25

Step-by-step explanation:

I took the test and i got it right

8 0
3 years ago
At 9 AM you have run 2 miles. At 9:24 AM you have run 5 miles. What is your running rate in minutes per mile
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I think it's 8 b/c 24 minutes divided by 3 miles is 8 minutes per mile.
4 0
3 years ago
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