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HACTEHA [7]
3 years ago
7

​ -9/6 + (-3/5) help please tytyytytytyyty

Mathematics
2 answers:
pshichka [43]3 years ago
5 0

Answer:

-2.1

Step-by-step explanation:

Annette [7]3 years ago
3 0

Answer:

-2 1/10

Step-by-step explanation:

-  \frac{9}{6}  + ( -  \frac{3}{5} ) =  -  \frac{3}{2}  + ( -  \frac{3}{5} ) =  -  \frac{15 + 6}{10}  =  -  \frac{21}{10}  =  - 2 \frac{1}{10}

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GaryK [48]
Volume of a cone=\pir^2*h/3
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volume fo a sphere = 4/3\pir^3
4/3*pi*1.5^3=14.14

56.55-14.14=42.41
4 0
3 years ago
Find the volume for the shape below
Thepotemich [5.8K]
30in I know that because I just did this .this is EASY!
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2 years ago
A scientist is studying the relationship of two quantities S and T in an experiment. The scientist finds that
Svetllana [295]

Answer:

...what are the following for reference?

Step-by-step explanation:

4 0
3 years ago
A farmer wants to fence an area of 13.5 million square feet in a rectangular field and then divide it in half with a fence paral
denis23 [38]

Answer:

  F = 3x +(2.7×10^7)/x

Step-by-step explanation:

The formulas for area and perimeter of a rectangle can be used to find the desired function.

<h3>Area</h3>

The area of the rectangle will be the product of its dimensions:

  A = LW

Using the given values, we have ...

  13.5×10^6 = xy

Solving for y gives ...

  y = (13.5×10^6)/x

<h3>Perimeter</h3>

The perimeter of the rectangle is the sum of the side lengths:

  P = 2(L+W) = 2(x+y)

<h3>Fence length</h3>

The total amount of fence required is the perimeter plus one more section that is x feet long.

  F = 2(x +y) +x = 3x +2y

Substituting for y, we have a function of x:

  F = 3x +(2.7×10^7)/x

__

<em>Additional comment</em>

The length of fence required is minimized for x=3000. The overall size of that fenced area is x=3000 ft by y=4500 ft. Each half is 3000 ft by 2250 ft. Half of the total 18000 ft of fence is used for each of the perpendicular directions: 3x=2y=9000 ft.

4 0
2 years ago
Jeremy and Arnold are working on a project for math class in which they are to identify the quadratic equation that represents a
denis23 [38]

Answer:

The parabola generated by the expression :

y=x^2-2x+3

is the one that better represents a rain gauge above the ground.

Step-by-step explanation:

The function:

a) y=x^2+11x+24

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: below

So, the parabola doesn't depict a rain gauge off the ground

b) y=-x^2-6x-8

Direction of parabola: branches pointing down

Location of vertex relative to x-axis: above

So, the parabola doesn't depict a rain gauge off the ground

c) y=x^2-2x+3  

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: two units above

So, the parabola depicts a rain gauge off the ground

d) y=x^2+4x+4

Direction of parabola: branches pointing up

Location of vertex relative to x-axis: right on the x-axis

So, the parabola doesn't depict a rain gauge off the ground (this is sitting on the ground)

e) y=3x^2+21x+30

Direction of parabola: branches pointing up

Location of vertex relative to x-axis:  below

So, the parabola doesn't depict a rain gauge off the ground

5 0
3 years ago
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