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Phoenix [80]
4 years ago
10

Use phasor techniques to find an expression for i(t) expressed as a single cosine function, where i(t)=[250cos(377t+30∘)−150sin(

377t+140∘)] ma. enter your expression using the cosine function. round real numbers using two digits after the decimal point.
Mathematics
1 answer:
Elanso [62]4 years ago
5 0
Asked and answered elsewhere. (You can do the rounding yourself.)
brainly.com/question/9359711
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The average price of a gallon of milk is $3.31. If the price increases .88% each year , how much will a gallon of milk cost in 2
musickatia [10]

Answer:

$3.94

Step-by-step explanation:

You will need to use the compound interest formula for this.

P(1+\frac{r}{n} )^{nt}

P = initial balance

r = interest rate

n = number of times compounded annually

t = time

Your equation will look like this:

3.31(1+\frac{.0088}{1} )^{20} = 3.94

5 0
4 years ago
A sporting goods store sells triangular team pennants in two sizes. The base of one pennant is 18 in. and the length of the side
juin [17]
This is a proportion problem because the problem stated that the two team pennants are similar.

Pennant 1 = base = 18 in ; length = 9 inches
Pennant 2 = base =   6 in ; length = x ?

9/18 = x/6
9*6 = 18x
54 = 18x
54/18 = x
3 = x

The length of the  side of the smaller pennant is 3 inches.
6 0
4 years ago
Read 2 more answers
Charles Smith makes $9.75 an hour. He works 4 hours on Monday, 6 hours on Tuesday, 5 hours on Wednesday, 5 hours on Thursday, an
LekaFEV [45]

Hello,

4 h + 6 h + 5 h + 5 h + 7 h = 27 hours

$ 9,75 * 27 = $ 263,25

The correct answer is D.

Bye :)

7 0
3 years ago
A tank is being filled with water using an old
ElenaW [278]
<span>Found a similar problem with the given table. 

Elapsed time (Minutes)   0    10   20   30    40    50   60   70   80   90
Rate (gallons / minute)   42   40  38   35    35    32   28    20   19   10

Because the interval is every 10 minutes, we will use 10 and multiply it to each rate and get the sum total.

42*10 + 40*10 + 38*10 + 35*10 + 35*10 + 32*10 + 28*10 + 20*10 + 19*10 + 10*10
420 + 400 + 380 + 350 + 350 + 320 + 280 + 200 + 190 + 100
2,990

There will be a total of 2,990 gallons in the tank after 90 minutes. </span>
6 0
3 years ago
((s+4)/(s^2+13s+36))*((s+9)/(9))
defon
\bf \cfrac{s+4}{s^2+13s+36}\cdot \cfrac{s+9}{9}\implies \cfrac{\underline{s+4}}{\underline{(s+9)}\underline{(s+4)}}\cdot \cfrac{\underline{s+9}}{9}\implies \cfrac{1}{9}
8 0
3 years ago
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