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3 years ago

Simplify the expression so there is only one positive power for the base, -5........ -5^7/-5^2

Mathematics

1 answer:

ELEN [110]3 years ago

3 0

-5^7/-5^2=5^7/5^2= 5^(7-2)=5^5 this is the answer

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Can anybody help me with this one plz.

Svetradugi [14.3K]

(-1,1)
D0 means starting at the origin of Z in this case, so doing the same thing as always, multiply the scale factor -1/2 to the coordinate of Z giving you (-1,1) and this is the final answer because the origin is (0,0) so doesn’t change anything

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3 years ago

A store owner wants to give a pen to each customer who visits their store. The table shows the cost for the number of pens in a

Flura [38]

Answer:

$9 for 36

Step-by-step explanation:

Divide the price by the quantity to receive the unit price. Here are the unit prices for each option:

1. $0.54

2. $0.43

3. $0.31

4. $0.28

5. $0.25

Basically, you want the lowest price. So, $9 for 36 is the best value because it costs $0.25 per pen.

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3 years ago

The inverse of F(x) is a function.

leonid [27]

Answer:

This is true.

Step-by-step explanation:

I hope this helped you! :)

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3 years ago

A fish swims upstream a distance of 16 miles in a river with a current of 3 miles per hour. The fish returns swimming

arlik [135]

Answer:

9 mph = the speed in still water

Step-by-step explanation:

Let r = the speed in still water

Then the speed going down stream is r + 3

and the speed going upstream is r - 3

d = rt or t = d/r

time going downstream is 16/(r + 3) and time going upstream is 16/(r - 3)

The total time was 4 hours, so

$\frac{16}{r + 3} + \frac{16}{r - 3} = 4$ Multiply thru the equation by (r + 3)(r - 3)

Then 16(r - 3) + 16(r + 3) = 4(r + 3)(r - 3)

16r - 48 + 16r + 48 = $4r^{2}$ - 36

$4r^{2}$ - 36 = 32r

$4r^{2}$ - 32r - 36 = 0

$4(r^{2} - 8r - 9) = 0$

4(r - 9)(r + 1) = 0

r = 9 or -1

But a rate of speed cannot be negative, so x ≠ -1

So, r = 9 mph = the speed in still water

7 0

3 years ago

How many solutions does the following. system of equations have? 6x-3y= -9 y=2x+3. one solution, infinitely many solutions or no

DanielleElmas [232]

Answer:

D on edg

Step-by-step explanation:

7 0

3 years ago