Mathematics, 08.04.2020 22:02 olson1312
Common household electric current is called alternating current because the current alternates direction within the wires. The voltage V in a typical 115-volt outlet can be expressed by the function V(t)=163 sin wt Upper V left parenthesis t right parenthesis equals 163 sine omega t
,
where omega=w
is the angular speed (in radians per second) of the rotating generator at the electrical plant and t is the time measured in seconds. It is essential for electric generators to rotate at precisely 60 cycles per sec.
How many times does the current oscillate in 0.30
sec?__times
Answers: 2
Mathematics, 21.06.2019 12:50
best answer for the question.1. divide 7/24 by 35/48 and reduce the quotient to the lowest fraction.
Answers: 2
Mathematics, 21.06.2019 15:00
Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 β 4x + 8x^2) + (β6 + 2x β 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x β 5 β 7x^2) β (β2 + 6x^2 β 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by β1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.
Answers: 3
Mathematics, 21.06.2019 15:00
The system of equations graphed below has how many solutions? y = 2x + 2
Answers: 1
Mathematics, 21.06.2019 20:30
The difference between two numbers is one. three times the larger number minus two times the smaller number is 9. what are the two numbers
Answers: 3
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