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mezya [45]
3 years ago
14

It cost $200 to rent a room at an event center. The event center charges an additional $13 per person for food. Write an algebra

ic expression for the total cost of an event for n people
Mathematics
1 answer:
nydimaria [60]3 years ago
8 0

Answer:13n=200

Step-by-step explanation$13 for pood per person. n is the number of people. 13 times n equals 200

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1-tan^2(x)/sec^2 = cos(2x)
LekaFEV [45]

By applying the formula of trigonometric function the right hand side will

be equal to right hand side which is 1-tan^{2} x/sec^{2}x=cos2x.

Given: 1-tan^{2} x/sec^{2}x=cos2x.

Taking right hand side first which is cos2x.

We know that cos2x=1-tan^{2}x/1+tan^{2}x

Now we will solve the left hand side of the equation give which is

1-tan^{2} x/sec^{2}x

=1-tan^{2}x/1+tan^{2}x

[secant square x minus tangent square x is equal to 1]

By putting both values left hand side and right hand side we will find our solution which is :

1-tan^{2}x/1+tan^{2}x=1-tan^{2}x/1+tan^{2}x.

Hence proved

Learn more about trigonometric functions at brainly.com/question/24349828

#SPJ10

3 0
2 years ago
Two more than 5 times a number,n, is greater than 3.
lana [24]

Answer:

5n + 2 > 3 (If you're writing the equation)

n > 1/5 (If you're solving for n.

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Solve the systems of equation by substitution method.<br><br>2x+y=1<br>3x-y=4​
SCORPION-xisa [38]

Answer:

x=1, y=-1. (1, -1).

Step-by-step explanation:

2x+y=1

3x-y=4

-------------

y=3x-4

2x+3x-4=1

5x-4=1

5x=1+4

5x=5

x=5/5

x=1

y=3(1)-4=3-4=-1

5 0
3 years ago
Find the area of a circle with a diameter of 8cm.
Elza [17]

Answer:

50.24

Step-by-step explanation:

Area = r^2 x 3.14 (pi)

Radius = 8 ÷ 2 = 4

4² = 16

16 x 3.14 = 50.24

Area = 50.24 cm ²

6 0
3 years ago
What are the solutions of the equation?
Olegator [25]
The correct answer would be 41
7 0
3 years ago
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