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11111nata11111 [884]
3 years ago
7

Find the number of ways to listen to 4 different CDs from a selection of 15 cds?

Mathematics
2 answers:
Mekhanik [1.2K]3 years ago
5 0

Answer: letter a should be the correct answer

Step-by-step explanation:

Alex787 [66]3 years ago
4 0

D is the answer for this question

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Please help...its for Delta math. will mark brainliest and I will be ur friend♥<br>​
REY [17]

The exponential functions change is represented by decay and the percentage rate of decrease is 1.00619%.

Step-by-step explanation:

Step 1:

To determine if the function represents growth or decay, we substitute values to x.

If the values increase with an increase of x, it represents growth.

If the values decrease with an increase of x, it represents decay.

Step 2:

If x= 10, y = 1,300 (\frac{1}{2})^{\frac{10}{69} }  =  1,300 (0.9044) = 1,175.72.

If x=11,y = 1,300 (\frac{1}{2})^{\frac{11}{69} }  =  1,300 (0.8953) = 1,163.89.

So as x increases the value of y decreases, so it represents decay.

Step 3:

The percentage rate of change is determined by dividing the difference of two consecutive values by the first value.

The percentage rate of change = \frac{y(x=11) - y(x=10)}{y(x=10)}.

Substituting the values, we get

The percentage rate of change =\frac{1,175.72-1,163.89}{1,175.72}(100) = 1.00619\%.

As the values of y decrease with an increase in x, it is the percent decrease per unit.

5 0
3 years ago
Read 2 more answers
A flower bed has the shape of a rectangle 7 yards long and 4 yards wide. What is it’s area in square feet
Alla [95]

Answer: 252 square feet

Step-by-step explanation:

lets remember that 1 yard= 3 feet

7 yards= 7*3=21 feet

4 yards= 4*3=12 feet

we know that area of a rectangle= LxW

21 x 12= 252 square feet

6 0
3 years ago
Which of the following shows the correct solution steps and solution to 7x-4= -18?
Serga [27]
7x - 4 = -18
7x = -14
x = -2
3 0
4 years ago
Read 2 more answers
Product of 289 and 7
lyudmila [28]
Product means that u have to multiply the values so it will be 289*7 so it will be 2023
4 0
3 years ago
Read 2 more answers
PLS HELP I NEED HELP NOW<br> I BEG
stepan [7]
Hello there! The area of the triangle portion is 11 square units, the area of the rectangle portion is 77 square units, and the area of the entire figure is 88 square units.

To find the area of the triangle, we can follow the formula:

A = LW/2 (which means length x width divided by 2)

Given the formula:

2 • 11 = 22

22 divided by 2 gives us 11 square units.

To find the area of the rectangle portion, we can follow the area formula:

A = LW (which means area = length x width)

Given the formula:

7 • 11 = 77 square units

To find the area of the whole figure, we add the areas of both isolated shapes:

11 + 77 = 88 square units.

Therefore, our area for the entire figure is 88 square units. If you need any extra help, let me know and I will gladly assist you.
7 0
2 years ago
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