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3 years ago

Choose the correct elements in the set for the following:

Mathematics

1 answer:

Ymorist [56]3 years ago

4 0

This is the set of all integers greater than -2, excluded. So, the elements of the set are

$\{-1,0,1,2,3,4,5,\ldots\}$

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Notes: Each calculator is $5 dollars and the shipping cost $15. Write a linear relationship between that shows the cost and the

Veronika [31]

Answer:

y = 5x+15

Step-by-step explanation:

The cost per calculator is 5

The shipping cost is 15

Let y = total cost

Let x = number of calculators

y = 5x+15

3 0

4 years ago

The diagonal of a square is x what is the perimeter of the square

RSB [31]

Answer:

2 $\sqrt{2}$ x

Step-by-step explanation:

The diagonal divides the square into 2 right angles with legs s and hypotenuse x

Using Pythagoras' identity on one of the right triangles, then

s² + s² = x²

2s² = x² ( divide both sides by 2 )

s² = $\frac{x^2}{2}$ ( take the square root of both sides )

s = $\sqrt{\frac{x^2}{2} }$ = $\frac{x}{\sqrt{2} }$

Thus

perimeter = 4s = 4 × $\frac{x}{\sqrt{2} }$ = $\frac{4x}{\sqrt{2} }$

Multiply numerator/ denominator by $\sqrt{2}$

perimeter = $\frac{4x\sqrt{2} }{2}$ = 2 $\sqrt{2}$ x

5 0

3 years ago

A local charity is sponsoring an outdoor rock concert to raise money for children’s cancer research. To accommodate as many patr

lozanna [386]

Im assuming the circular layout of course

3 0

3 years ago

If you were filling the cylinder up with water using a cone that has the same height and diameter, how many cones will it take t

aleksandrvk [35]

Answer:

It required 3 cones to fill up the cylinder with the same height and diameter.

Step-by-step explanation:

Let the radius of the cone and cylinder be r.

Let the height of the cone and cylinder be h.

As we know that $\text{Volume of cylinder}=\pi r^2h$ ....(1)

$\text{Volume of cone}=\frac{1}{3}\pi r^2h$

It can be observed that the volume of a cone is $\frac{1}{3}$ rd the volume of the cylinder. so, multiply the volume of the cone by 3.

$3 \times \text{Volume of cone}=3 \times \frac{1}{3}\pi r^2h$

$3 \times \text{Volume of cone}= \pi r^2h$

$3 \times \text{Volume of cone}= \text{Volume of cylinder}$ (From equation 1 )

Hence, It required 3 cones to fill up the cylinder with the same height and diameter.

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3 years ago

What is the surface area of the regular pyramid below? I’ll would be helpful if you guys list down the steps !

meriva

Answer:

The answer to your question is A = 648 u²

Step-by-step explanation:

I attach the solution because it said that I was writing improper words.

6 0

4 years ago