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jeka94
2 years ago
12

Which expression is equivalent to sec²x - 1? A. cot²x B. tan²x C. CsC²x D. cos²x​

Mathematics
1 answer:
Andrei [34K]2 years ago
3 0

Hi

Answer:

Step-by-step explanation:

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If john has a bag of 30 sweets and he eats 21. what is the percentage is left​
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6 0
4 years ago
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After 2 years, a certain car is worth $16600. When it is 9 years old, the same car is then worth
Lubov Fominskaja [6]

The linear function that describes the situation is:

y = -950x + 18500.

  • The slope of -950 means that the price of the car decays $950 per year.
  • The y-intercept of 18500 means that the initial value of the car is of $18,500.
  • The x-intercept of 19.47 means that the value of car is of $0 after 19.47 years.

<h3>What is a linear function?</h3>

A linear function is modeled by:

y = mx + b

In which:

  • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.
  • b is the y-intercept, which is the value of y when x = 0.

In this problem, in 7 years, the price of the car decays by $6,650, hence the slope is given by:

m = -6650/7 = -950.

The slope of -950 means that the price of the car decays $950 per year.

Then, the equation is:

y = -950x + b.

After 2 years, a certain car is worth $16600, hence when x = 2, y = 16600, and:

16600 = -950(2) + b

b = 18500.

The equation is:

y = -950x + 18500.

The y-intercept of 18500 means that the initial value of the car is of $18,500.

The x-intercept is found when y = 0, hence:

-950x + 18500 = 0.

x = 18500/950

x = 19.47.

The x-intercept of 19.47 means that the value of car is of $0 after 19.47 years.

More can be learned about linear functions at brainly.com/question/24808124

8 0
2 years ago
How to find the length width height of a box that I'd 4 layers with 6 cubed in each
igor_vitrenko [27]
You multiple how ever many layers you have. Like let's say you have 5 layers you would just go 6 times 6 times 6 and so on
8 0
4 years ago
Read 2 more answers
Pls answer these questions
polet [3.4K]

Answer:

a. A is disjoint to B

b. A is subset of B

c. A -B

d. A union B complement

e. A intersection B complement

f. B-A complement

6 0
3 years ago
Giving Brainliest
Komok [63]

The dimensions of the region which enclose the maximal area will be:  Length = 162 feet and Width = 108 feet.

Explanation

According to the below diagram, the total rectangular area is divided into two separate regions by a vertical segment.

Suppose, the length and width of the rectangular area are  L and W respectively.

So, the length of that vertical segment will be equal to the width, W.

If the four walls of the rectangular area and the vertical segment are made up of fencing, then the total fence required  feet.

Given that, the farmer has 648 feet of fencing. So, the equation will be .....

Now, the area of the rectangular area:  

Substituting equation (1) into equation (2) , we will get ......

Taking derivative on the both sides of the above equation with respect to W, we will get ......

Now, A will be maximum when. So....

Plugging this  into equation (1) ........

So, the dimensions of the region which enclose the maximal area will be:  Length = 162 feet and Width = 108 feet.

Step-by-step explanation:

6 0
4 years ago
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