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Anna [14]
2 years ago
13

E=3.8cos(110πt). Determine the period.

Mathematics
1 answer:
kotykmax [81]2 years ago
6 0

Check the picture below.

f(t)=3.8\cos(\stackrel{B}{110\pi } t)~\hfill \stackrel{\textit{\Large Period}}{\cfrac{2\pi }{110\pi }\implies \cfrac{1}{55}}

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[|(x-4)÷(x+5)|]\leq[4]
Katena32 [7]

Answer:

Solutions are;

x = -8

x = -3.2

Step-by-step explanation:

Here, we want to solve the given equation for x

|(x-4)/(x + 5)| = 4

From what we have, this is an absolute value equation and thus, we are going to have two solutions

These are;

x-4/x+ 5 = 4

x-4 = 4(x + 5)

x-4 = 4x + 20

x-4x = 20 + 4

-3x = 24

x = -24/3

x = -8

secondly;

x-4/x+5 = -4

x-4 = -4(x + 5)

x-4 = -4x - 20

x + 4x = -20 + 4

5x = -16

x = -16/5

x = -3.2

3 0
3 years ago
Mr. Arnold is buying dry-erase markers for his classroom. He already has 7 markers. Mr. Arnold buys 5 packs with 7 markers each
klemol [59]

Answer: 7+5(7)+8(4)-2

Step-by-step explanation:

that’s the answer

3 0
2 years ago
Can someone please help me?
melomori [17]

Answer:

Hello! answer: 21.4

Hope that helps!

7 0
2 years ago
A right triangle is displayed.
Mazyrski [523]

Answer:

You have to use the Pythagorean Theorem to find the other side, which will be your base in the Area formula (A=1/2bh). So the Pythagorean theorem would be 36^2 + b^2 = 60^2. This gives you 48 in for your base/missing side length. Then, you plug it into the area formula. So, A=1/2(48) (36). This gives you 864 in^2 for the area of your triangle.

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2 years ago
Please help! (100 points!) look at the image :)
viva [34]

Answer:

Step-by-step explanation:

8 0
2 years ago
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