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2 years ago

PLEASE HELP, AND HOW DO U SOLVE THESE TYPE OF QUESTIONS

Mathematics

1 answer:

liberstina [14]2 years ago

3 0

9514 1404 393

Answer:

625

Step-by-step explanation:

The ordered pair is an (x, y) pair. You are given the value of x. Put it in the equation and do the arithmetic.

y = 5^4 = 625

The ordered pair is (4, 625). The missing value is 625.

_____

<em>Additional comment</em>

The exponentiation function on many calculators is done using a key labeled ...

$\boxed{y^x}$

You can do it the long way by recognizing that 5^4 = 5·5·5·5 or 25·25.

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Abandoned mines frequently fill with water. Before an abandoned mine can be reopened, the water must be pumped out. The size of

ale4655 [162]

Answer:

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Step-by-step explanation:

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2 years ago

Find the uncertainty in a calculated average speed from the measurements of distance and time. Average speed depends on distance

zzz [600]

Answer:

$\frac{\Delta v}{v}=0.426$

Step-by-step explanation:

you have that the average sped is given by the following formula:

$v(x,t)=\frac{x}{t}$

The uncertainty formula for a division is given by:

$\frac{\Delta v}{v}=\sqrt{(\frac{\Delta x}{x})^2+(\frac{\Delta t}{t})^2}$ (1)

Δv: uncertainty in speed

Δx: uncertainty in the distance = 0.9m

Δt: uncertainty in time = 0.7s

x: distance = 8.1m

t: time = 1.7s

You replace the values of all parameters in the equation (1):

$\frac{\Delta v}{v}=\sqrt{(\frac{0.9}{8.1})^2+(\frac{0.7}{1.7})^2}\\\\\frac{\Delta v}{v}=0.426$

Hence, the relation between the uncertainty in the average velocity is 0.426

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2 years ago

What is the absolute value of Point C labelled on the number line? A number line with point A at coordinate -2.75, point B at co

lina2011 [118]

Answer:

2.25

Step-by-step explanation:

The value of point C is already positive, so nothing changes.

_____

The absolute value function changes negative numbers to positive ones (by multiplying by -1, or reflecting across the origin of the number line).

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2 years ago

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3 years ago

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