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Nikolay [14]
3 years ago
6

Identify the period for the trigonometric function: f (t) = −2sec(t).

Mathematics
1 answer:
Agata [3.3K]3 years ago
3 0

Answer:

The answer is 2pi.

Hope this helps you. Also if you practice your material better you won't need to ask. Studying is the medicine to all problems xD



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How to find the profit/ loss in total
Pani-rosa [81]

Answer:

Take the amount spent and subtract it from the amount made to find profit/loss

6 0
3 years ago
The cost of a fridge has increased by 15% to £828. Work out the original price
lilavasa [31]
The original value was <span>£720.
720 x .15 (15%) = 108
720 + 108 = 828 </span>
8 0
3 years ago
F(x)= x(x+3)(x+1)(x-4) has zeros at x=-3
anygoal [31]

Answer:  C) Sometimes positive; sometimes negative

============================================================

Explanation:

Pick a value between x = -1 and x = 0. Let's say we go for x = -0.5

Plug this into f(x)

f(x) = x(x+3)(x+1)(x-4)

f(-0.5) = -0.5(-0.5+3)(-0.5+1)(-0.5-4)

f(-0.5) = -0.5(2.5)(0.5)(-4.5)

f(-0.5) = 2.8125

We get a positive value.

This shows that f(x) is positive on the region of -1 < x < 0

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

Now pick a value between x = 0 and x = 4. I'll use x = 1

f(x) = x(x+3)(x+1)(x-4)

f(1) = 1(1+3)(1+1)(1-4)

f(1) = 1(4)(2)(-3)

f(1) = -24

Therefore, f(x) is negative on the interval 0 < x < 4

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

In short, f(x) is both positive and negative on the interval -1 < x < 4

It's positive when -1 < x < 0

And it's negative when 0 < x < 4

4 0
1 year ago
What is the answer too 2(3d+3)
goblinko [34]

2(3d+3)

multiply the bracket by 2

(2)(3d)=6d

(2)(3)=6

answer:

6d+6

8 0
3 years ago
Need help solve for x
Vadim26 [7]
The answer is c. 28...
8 0
3 years ago
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