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2 years ago

11

A jet takes the same time to travel 2580 km with the wind as it does to travel 1800 km against the wind. If its speed, relative

to the air is 450km/hr, what is the wind speed?

1 answer:

Sliva [168]2 years ago

3 0

Answer: The wind speed has to at least be 1.5 kilometers per hour

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1 year ago

1) Find the inverse of the function below. Use g-1(x) to indicate the inverse 5 points

omeli [17]

Answer:

g-1(x)=SQRT{(x-4)/2} + 4

Step-by-step explanation:

I assume that the 2 is the exponent so ^ represents exponent

We know your function is g(x)=2(x-3)^2+4

For inverse functions we swap x and y values, note g(x) is like the y value

Isolate for y

y=2(x-3)^2+4

x=2(y-3)^2+4

(x-4)/2 = (y-3)^2

SQRT{(x-4)/2} + 4 = y

Therefore g-1(x)=SQRT{(x-4)/2} + 4

4 0

3 years ago

I really need help with this section

Tpy6a [65]

Looks like you did most of it.

The next step would be setting them equal to 105, like the problem suggests.

$5z+3x+7x=105$

$15x=105$

$x=7$

Then we can plug back in to find the numbers.

$5*7=35$

$3*7=21$

$7*7=49$

$35+21+49=105$

The three numbers are $35, 21, 49$ .

Hope this helps.

頑張って!

5 0

3 years ago

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