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lara [203]
3 years ago
14

Michelle went on a hike the trail at 6:45 AM and she returned at 3:20 PM along with the train hike

Mathematics
1 answer:
lisov135 [29]3 years ago
8 0
Hello the answer to how long is 7 hours and 35 minutes

Hope this helps
Plz mark me as brainist Thanks!!!
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What is the domain of this function
Nadusha1986 [10]

Answer:

{ 1,2,3,4}

Step-by-step explanation:

The domain of a function is all the inputs

The inputs are { 1,2,3,4}

The domain is { 1,2,3,4}

3 0
2 years ago
Solve for x: 2 logz 2x = 6
Nikolay [14]

Answer:

x=3

Step-by-step explanation:

if the equation is 2x=6 then you'd do 6/2 and 2x/2 to cancel out the 2 and get x=3

5 0
3 years ago
Please help i beg u this is my 4th time asking​
4vir4ik [10]

Answer:

Formula to find height when given diameter and slanted height

\sqrt{s { }^{2} }  - r {}^{2}

First find the radius

24÷2=12

Next square the radius

12²=144

Next square the slanted height

20²=400

Now find the square root of both

\sqrt{400 - 144}

=16ft

6 0
2 years ago
A family of four used about 11,370 gallons of water in their home last month. There are 30 days in a month. ABOUT how many gallo
scZoUnD [109]
D 379 is the answer.
3 0
3 years ago
Packaging By cutting away identical squares from each corner of a rectangular piece of cardboard and folding up the resulting fl
Vikki [24]

Answer:

Height: 3/2 inches

Length:  12 inches

Width: 4 inches

Step-by-step explanation:

Let x is the side length of the square

The height of the box by cutting squares off :x

  • The new length of the cardboard = 15 -2x (because we cut from 4 corners)
  • The new width of the cardboard = 7 -2x (because we cut from 4 corners)

The new volume of it is:

V = (15 -2x) (7 -2x) x

<=> V = 4x^3 -44x^2 +105x

To maximum volume, we use the first derivative of the volume

\dfrac{dV}{dx} = 0

<=> 12x^2-88x+105=0

<=> \left(2x-3\right)\left(6x-35\right) = 0

<=> 2x -3 = 0 or 6x -35 = 0

<=> x = 3/2 or x = 35/6

To determine which value of x gives a maximum, we evaluate

\dfrac{d^2V}{dx^2} = 24x -88

  • If  x = 3/2, we have:

\dfrac{d^2V}{dx^2}= 24(3/2) -88  = -52

  • If x = 35/6, we have:

\dfrac{d^2V}{dx^2} = 24(35/6) -88 = 52

We choose x = 3/2 to have the maximum volume because the value of x that gives a negative value is maximum.

So the dimensions (in inches) of the box is:

Height: 3/2 inches

Length: 15-2(3/2) = 12 inches

Width: 7 - 2(3/2) = 4 inches

5 0
3 years ago
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