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3 years ago

What is 5 over 3 to the -2 power

Mathematics

1 answer:

dybincka [34]3 years ago

6 0

Five over there to the power of negative two is
Three squared over five squared
Which is 9 over 25

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Elijah opens a savings account with $60. Each week after, he deposits $25. In how many weeks will he have saved $600?

iren2701 [21]

Answer:

25w + 60= 600

25w= 540

w=21.6

Step-by-step explanation:

First make the equation

1. Subrtract 60 from each side

2. Now divide 25 on both sides

3. now you have the answer

I GOT A DECIMAL SO MAYBE ROUND OR PUT THAT EXACT ANSWER.

3 0

3 years ago

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X+Y=9 $21.50x+$21.70y=$215.70

faltersainse [42]

Answer:You already answer the question what is there to answer again?

Step-by-step explanation:

4 0

3 years ago

Two boats sail away from a buoy making a 90 degree angle. The first boat is 165 meters away and is traveling at 25 m/s. The seco

NikAS [45]

Answer:

Step-by-step explanation:

lets say in the shown triangle x=165

so speed $\frac{dx}{dt} =25$

and $\frac{dy}{dt} =35$

Also since distance = speed* time

time = pi minutes = pi/60 seconds

y = $\frac{35\pi \pi }{60}$

y = $\frac{7\pi }{12}$

Now using the pythagorean :

$x^2+y^2=z^2\\so \\165^2+(\frac{7\pi }{12} )^2 =z^2$

derivate the equation so we get :

$x\frac{dx}{dt} +y\frac{dy}{dt} =z\frac{dz}{dt} \\$ $165*25+35*\frac{7\pi }{12}=\sqrt{165^2+(\frac{7\pi }{12})^2} *\frac{dz}{dt}$

$\frac{dz}{dt} =25.387$ m/s

So Rate of change = 25.387 m/s

5 0

3 years ago

i'm giving brainiest right now so first one who has correct gets brainiest!!The length of one side of a square pond is 15 feet.

marysya [2.9K]

It’s easiest to think about it this way:

If the pond is 15 feet wide, then adding 3 feet to each side would increase the side length to the square by six feet (3 feet on each side). This makes the area within the square equal to 18x18 feet, or 324 square feet. But, this isn’t the area of the sidewalk, it’s the area of the sidewalk plus the area of the pool.

The pool is fifteen feet wide, which means that it has an area of 225 square feet. So, to find the area of the side walk, we can subtract the area of the pool from the area of the pool and sidewalk, which will give us the area of the sidewalk by itself.

324-225=99 square feet.

The pool has an area of 225 square feet, and the sidewalk has an area of 99 feet.

3 0

4 years ago

I need to multiply 11x0.08 how would i do it?

g100num [7]

Answer:

just use calculator ,88 is answer and hi

6 0

1 year ago

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