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Sergio [31]
3 years ago
14

Need help pls. I have others to. ​

Mathematics
1 answer:
ehidna [41]3 years ago
6 0
Its d,
a system is when you have two or more equations. This has only the one equation
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Geraldine is picking a four-digit password by using the digits 0 through 9. She can use each digit only once. How many different
BabaBlast [244]

Answer:

5040 different combinations

Step-by-step explanation:

0-9 = 10 numbers

1st digit can be 1 0f 10

2nd digit can be 1 of 9

3rd digit can be 1 of 8

4th digit can be 1 of 7

10×9×8×7=5040

5 0
4 years ago
Read 2 more answers
A sinusoidal source is usually described by the function cos(ωt+ϕ), where the units of the frequency ω are radians/second and th
xenn [34]

Answer:

49.999999999999974312306505198184 V

Step-by-step explanation:

Step 1: you see 45°, which gives you a easy conversion \frac \pi 4).

Now, t = 392.7 \mu s = 392.7* 10^{-6} s, start replacing.

V= 50 cos ( 2* 10^3 * 392.7 *10^{-6} -\frac \pi 4) = 50 cos (0.7854 - \frac \pi 4) =\\ 49.999999999999974312306505198184 V

6 0
4 years ago
Jeff wanted to buy TV priced at $700. There are 20% OFF sale going on during President's week. How much would Jeff save if he bu
qwelly [4]

Answer:

Savings of Jeff will be $140.

Step-by-step explanation:

List price of TV = $700

Now, it is given that, this TV is available at 20% off or 20% discount during the President's week.

So, rate of discount = 20%

Now, discount = 20% of $700

=\frac{20}{100}\times700

= $140

Now, the discount of $140 is the amount of money that Jeff saves if he buys the TV on President's Day.

6 0
3 years ago
Read 2 more answers
The function f(x) is shown in the graph.
Semmy [17]

Answer: Logarithmic

Explanation:

This curve is a reflection of the exponential curve over the line y = x, to show that it is the inverse of exponentials. We use logs to help isolate the exponent among other useful properties.

6 0
2 years ago
Of the last 100 customers entering a computer shop, 25 have purchased a computer. If the classical method for computing probabil
SOVA2 [1]

Answer:

0.50

Step-by-step explanation:

The question asks you to apply the classical method of computing probability. In this method, prior events do not interfere in the likelihood of an event happening in the future, instead it states that every possible outcome is equally likely to happen.

In this case there are only two possible outcomes: purchase or not purchase a computer. Therefore, the likelihood that the next customer will purchase a computer is 50% or 0.50.

8 0
4 years ago
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