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Andrei [34K]
4 years ago
14

Choose the correct simplification of the expression f4 • f8.

Mathematics
2 answers:
hammer [34]4 years ago
8 0

Answer:

f^12

Step-by-step explanation:

In this equation, you need to add the two exponents so this would make f^12

hope this helps!

never [62]4 years ago
7 0
The correct answer is f^12
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Write 85% as an frotion in simpfulest form
luda_lava [24]

85% is the same as 85/100.

85/100 means you can take a 5 out.

17/20 is completely simplified.

Hope this helps!

Answer: 17/20

7 0
2 years ago
Differentiate cosec5x
Marizza181 [45]

\dfrac{d}{dx} \csc(5x)\\\\=-\csc(5x) \cdot \cot (5x) \cdot \dfrac{d}{dx} (5x)\\\\=-5\csc(5x) \cdot \cot(5x)

7 0
3 years ago
Two different types of tea are sold in your store. If you know 100 cups of tea were sold and one type sold 5 times as much as th
LiRa [457]

The answer can not be found from the given information

Step-by-step explanation:

Two different types of tea are sold in your store

  • You know 100 cups of tea were sold
  • One type sold 5 times as much as the other type

We need to find how much of each type of tea were sold

Assume that the two types are x and y

∵ x represents one type of tea

∵ y represents the other type of tea

∵ 100 cups of tea where sold

- Add x and y, then equate the sum by 100

∴ x + y = 100 ⇒ (1)

∵ x type is 5 times as much as y type

∴ x = 5y ⇒ (2)

Now we have a system of equations to solve it

Substitute x in equation (1) by equation (2)

∴ 5y + y = 100

∴ 6y = 100

- Divide both sides by 6

∴ y = 16.67

<em>But you know number cups must be whole numbers</em>

The number cups can be 102 <em>OR</em> one type is 4 times as much as the other type

If the number of cups is 102, then

85 cups of one type and 17 cups of the other type were sold

If one type is 4 times as much as the other type, then

80 cups of one type and 20 cups of the other type were sold

The answer can not be found from the given information

Learn more:

You can learn more about the system of equations in brainly.com/question/2115716

#LearnwithBrainly

8 0
3 years ago
Mean variance standard deviation discussions questions
Simora [160]

The answer will be Mean = 135 Variance = 62 and Standard Deviation = 8

<h3>What is the standard deviation? </h3>

Standard deviation is defined as the amount of variation or the deviation of the numbers from each other.

Given that :

Proportion (p) = 54%

Sample size (n) = 250

Using Normal approximation :

Mean = np

Mean = 250 * 0.54 = 135

Variance = npq ; q = 1 - p = 1 - 0.54 = 0.46

Variance = (250 * 0.54 * 0.46) = 62.1 = 62

Standard deviation = √variance = √62.1

Standard deviation = 7.8803553 = 8

To know more about standard deviation follow

brainly.com/question/475676

#SPJ4

5 0
2 years ago
20.   7.2 x 12 x 0.23 = ? Round to the nearest hundredth. A. 19.43 B. 19.44 C. 19.87 D. 19.88
BaLLatris [955]
7.2*12*0.23
=86.4*0.23
=19.872
≈19.87. As a result, the answer is C. Hope it help!
7 0
4 years ago
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