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3 years ago

Use the fact that trigonometric functions are periodic to find the exact value of the expression. Do not use a calculator.

Mathematics

2 answers:

Inessa05 [86]3 years ago

8 0

Hey, Hope This Helps

1080-360=720
720-360=360
360-360=0
Which is 1080=Tan=0=0

Fofino [41]3 years ago

7 0

1080-360 = 720
720-360=360
360-360=0

so tan 1080 = tan 0 = 0

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Find the maximum and minumum of f(x) =<img src="https://tex.z-dn.net/?f=f%28x%29%20%3D2%5Csqrt%7Bx%7D%20-3%5Csqrt%5B3%5D%7Bx%7D"

QveST [7]

Answer:

1/27 at (x.y)= (1/3, 1,3)

Step-by-step explanation:

Hope this helps:)

6 0

2 years ago

PLEASE HELLP 25 POINTS

gayaneshka [121]

Hello from MrBillDoesMath!

Answer:

a^6 + 4 a^5 + 5 a^4 - 5 a^2 - 4 a - 1

Discussion:

You may need to clean things up a bit but suppose that

S(1) = a-1

S(2) = a^2 -1

Since this is a geometric series, the geometric ratio is given by

S(2)/ S(1) = (a^2 -1)/ (a-1)

= (a+1)(a-1)/ (a-1)

= a+1

Conclusion:

S(2) = (a+1) S(1) = (a+1) (a-1)

S(3) = (a+1) S(2) = (a+1) (a+1) (a-1) = (a+1)^ (3-1) (a-1)

S(4) = (a+1) S(3) = (a+1) * (a+1)^2 (a-1) ) = (a+1)^(4-1) (a-1)

in general.....

S(n) = (a+1)^ (n-1) (a-1)

S(6) = (a+1)^ (6-1) (a-1)

= (a-1) (a+1) ^ 5

= a^6 + 4 a^5 + 5 a^4 - 5 a^2 - 4 a - 1

Hope I didn't screw something here!

Thank you,

MrB

5 0

3 years ago

Read 2 more answers

You wish to mentally estimate the total cost of items that have the following prices: $1.85, $.98, $3.49, $9.78, and $6.18. Roun

Tanzania [10]

If you wish to mentally estimate the total cost of items, rounding off the items to the nearest half dollar, then you have to consider all five items separately.

Five items cost $1.85, $.98, $3.49, $9.78, and $6.18.

1. $1.85≈$2;

2. $0.98≈$1;

3. $3.49≈$3.50;

4. $9.78≈$10;

5. $6.18≈$6.

Then the total cost is

$2 + $1 + $3.50 + $10 + $6 =$22.50.

Answer: correct choice is C

4 0

2 years ago

Read 2 more answers

3(x+y)=y

andrew-mc [135]

3(x+y)=y

y is not equal to zero

*Solution

1. The given equation is 3(x+y) = y and we are tasked to find the ratio between x and y. Distributing 3 to the terms in the parenthesis,

3(x+y) = y

3x + 3y = y

Transposing 3y to the right side OR subtracting 3y from both the left-hand side and the right-hand side of the equation would give

3x = -2y

Dividing both sides of the equation by 3,

x = (-2/3)y

Dividing both sides of the equation by y,

x/y = -2/3

Therefore, the ratio x/y has a value of -2/3 provided that y is not equal to zero.

6 0

3 years ago

In Marissa's calculus course, attendance counts for 15% of the grade, quizzes count for 20% of the grade, exams count for

Alexandra [31]

Answer:

Her average was 87.35% on this course.

Step-by-step explanation:

In order to determine Marissa's average we need to take the average she has on each of the cattegories and find how much that relates to the weight of the cattegory on the final grade. We have:

Attendance counts for 15% of the grade and she has 100% average on that. So we have:

attendance = weight*(Marissa's average)

attendance = 15%*(100/100) = 15%

Quizzes counts for 20% of the grade and she has a 93% average on that. So we have:

Quizzes = weigth*(Marissa's average)

Quizzes = 20%*(93/100) = 18.6 %

Exams counts for 50% of the grade and she has a 82% average on that. So we have:

Exams = weigth*(Marissa's average)

Exams = 50%*(82/100) = 41%

The final exam counts for 15% of the grade and she has a average of 85% on that so we have:

Finals = 15%*(85/100) = 12.75%

So her grade is the sum of all the cattegories:

Course's average = 15+18.6+41+12.75 = 87.35 %

4 0

3 years ago

Read 2 more answers