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nlexa [21]
3 years ago
7

The cost of a student ticket to the school play is $7. Write an equation that correctly relates the total cost, c, for a particu

lar number, s, of student tickets purchased. Identify the independent and dependent variables.
Mathematics
1 answer:
svp [43]3 years ago
8 0
The answer is:

c = 7s

The Independent Variable is: s
The Dependent Variable is: c
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Find the area of the circle. Leave your answers in terms of pi.
Savatey [412]

Answer:

49pi m^2

Step-by-step explanation:

Area of circle=pi r^2

D=2r=14

r=7

Area of circle =7^2pi=49pim^2

3 0
2 years ago
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Given that cos (x) = 1/3, find sin (90 - x)
drek231 [11]
\sin{(A - B)} \equiv \sin{A}\cos{B} - \cos{A}\sin{B} \\\\
\therefore \sin{(90 - x)}\\
 = \sin{(90)}\cos{(x)} - \cos{(90)}\sin{(x)} \\
= (1)\cos{(x)} - (0)\sin{(x)} \\
= \cos{x} - 0 \\
= \cos{x} \\
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3 years ago
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What do you need to know in order to do a rotation? Complete a rotation of your choice and identify the rule for this
Maurinko [17]
You are suppose to use a ruler to rotate the thing you need to rotate
6 0
3 years ago
How many sunsets of at least one element does a set of six elements have
Lesechka [4]

Answer:

63

Step-by-step explanation:

Given:

a set of six elements  

The solution would be like this for this specific problem:

number of subsets of n elements = 2^n

(2^6) - 1

= 64 – 1

= 63

7 0
2 years ago
Suppose each laptop of a certain type is assigned a series number, which consists of a sequenceof eight symbols: number, letter,
Varvara68 [4.7K]

Answer:

Step-by-step explanation:

There are 5numbers and 3 letters. Each number can be one among the 10 possible.

Each letter is 1 among the 26 available.

a)The number of possible unique serial numbers are

10^5x 26³

The number of 5 number combinations each different (order important) is 5!(10/5)= 30240

The number of 3 letter combinations each different (order important) is 3!(26/3)=15600

The required probability (that all symbols are different if one laptop is picked at random with equal probability) is

15600x3240/ 10^5x 26³=0.2684

b) The first letter must be at least 4 to be largest among the 5 numbers. So the first letter can be one of . 4,5,6,7,8,9..

The number of 5 number combinations each different and starting with 4 (order important) is .

4!=24

The number of 5 number combinations each different and starting with 5 (order important) is .

4!(5/4)= 120

The number of 5 number combinations each different and starting with 6 (order important) is .

4!(6/4)= 360

The number of 5 number combinations each different and starting with 7 (order important) is .

4!(7/4)= 840

The number of 5 number combinations each different and starting with 8 (order important) is

4!(8/4)= 1680

The number of 5 number combinations each different and starting with 9 (order important) is .

4!(9/4)= 3024

Thus, there are

The required probability ( that all symbols are different and the first number is the largest among the numbers) is

15600* 6040/10^5x 26³= 0.0537

5 0
3 years ago
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