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3 years ago

Explain why I got it right because I have no idea how to do it and It’s 100 points ?? Can someone help ?

Mathematics

1 answer:

ankoles [38]3 years ago

4 0

Answer:

its asking you to reflect or reverse it like fliping it around on a number line. 1 was the x axis so it was flipped to -1 and so with part b.

Step-by-step explanation:

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Round 25,386 to the nearest 1,000

Nonamiya [84]

25,000 because anything below 500 is rounded down

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4 years ago

According to Ohm's Law, in an electrical circuit the voltage V (in volts) is related to the current I (in amps) and the resistan

gulaghasi [49]

Answer:

The resistance is decreasing at a rate of 0.36 ohms/minute.

Step-by-step explanation:

The mathematical form of the Ohm's law is given by :

V = IR ...(1)

Where V is voltage, I is current and R is resistance

Given,

I = 5 A

R = 6 ohms

dI/dt = 0.3 A/min

Differentiate equation (1) wrt t:

$\dfrac{dV}{dt}=I\dfrac{dR}{dt}+R\dfrac{dI}{dt}$

When V is constant, dV/dt = 0

$0=5\times \dfrac{dR}{dt}+6\times 0.3\ A/s\\\\1.8=-5\times \dfrac{dR}{dt}\\\\\dfrac{dR}{dt}=-0.36\ \Omega/min$

So, the resistance is decreasing at a rate of 0.36 ohms/minute.

4 0

3 years ago

The odds are two to one that, when A and B play tennis, A wins. Suppose that A and B play two matches. What is the probability t

Annette [7]

Answer: 8/9

Step-by-step explanation:

Taking the probability as

AA = 4/9 AB = 2/9 BA = 2/9 BB = 1/9

These spaces AA,AB,BA,BB is indicates who wins each game.

There is a 2/3 probability that A will win any particular game.

But considering that these events are independent events, the probability that A wins both games is 2/3 and 2/3 which equals to 4/9.

Therefore the probability that A wins at least one match would be 1 − P(BB).

And this gives 1 - (1/9) =

8/9

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3 years ago

How much will $1000 amount to after three years if it is invested at 5% interest compounded annually?

Damm [24]

By the end of three years they would have 1157.625$

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3 years ago

Is -12.75 a rational number

Alex787 [66]

Yes it is a rational question

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3 years ago