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Veronika [31]
3 years ago
6

If the tree is 25 feet tall , what is the angle of depression to his friend

Mathematics
1 answer:
Anarel [89]3 years ago
3 0

Answer:

15

Step-by-step explanation:

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the amount of Water and Electric Dishwasher uses to wash dishes varies directly with the number of loads of dishes the dishwashe
Neporo4naja [7]

It would be 80 gallons of water that the dishwasher will use to wash 10 loads of dishes. To figure this out you would need to divide 32 by 4 which would equal 8. You would do this to figure out how many gallons of water a dishwasher needs to wash 1 load of dishes. Then you would multiply 8 times 10 which would equal 80. Hope this helps you!

8 0
3 years ago
A rectangular box has a square base. The combined length of a side of the square base, and the height is 20 inches. Let X be the
Brrunno [24]

Answer:

V = (l)(w)(h)

V = (x)(x)(20-x)

V = x²(20-x)

V = -x³ + 20x²

7 0
3 years ago
What function do you know from calculus is such that its first derivative is itself?The above function is a solution of which of
Nataliya [291]

Answer:

a.  y= e raise to power y

c. y = e^ky

Step-by-step explanation:

The first derivative is obtained by making the exponent the coefficient and decreasing the exponent by 1 . In simple form the first derivative of

x³ would be 2x³-² or 2x².

But when we take the first derivative of  y= e raise to power y

we get y= e raise to power y. This is because the derivative of e raise to power is equal to e raise to power y.

On simplification

y= e^y

Applying ln to both sides

lny= ln (e^y)

lny= 1

Now we can apply chain rule to solve ln of y

lny = 1

1/y y~= 1

y`= y

therefore

derivative of e^y = e^y

The chain rule states that when we have a function having one variable and one exponent then we first take the derivative w.r.t to the exponent and then with respect to the function.

Similarly when we take the first derivative of  y= e raise to power ky

we get y=k multiplied with e raise to power ky. This is because the derivative of e raise to a  constant and power is equal to constant multiplied  with e raise to power y.

On simplification

y= k e^ky

Applying ln to both sides

lny=k ln (e^y)

lny=ln k

Now we can apply chain rule to solve ln of y ( ln of constant would give a constant)

lny = ln k

1/y y~= k

y`=k y

therefore

derivative of e^ky = ke^ky

3 0
3 years ago
I will give brainliest to the right answers<br> please help
romanna [79]

Answer:

first answer = 2

second answer = 12

third answer = - 12

fourth answer = 2

4 0
3 years ago
I need help solving this in simplest form
Simora [160]

Think of the 7 as if it's a fraction (over one)

7                 9

_      X  3    _     =          

1                 14



then we make it all a fraction so (14 × 3)+9 all over 14 which then = 51 over 14

     7            51           51                 1

    __     ×    __   =     __    =   25   _     or in decimal form 25.5

      1            14            2                 2

3 0
3 years ago
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